# A Fuzzy System Approach of Feed Rate Determination for CNC Milling

Size: px
Start display at page:

Download "A Fuzzy System Approach of Feed Rate Determination for CNC Milling"

## Transcription

1 A Fuzzy System Approach of Determination for CNC Milling Zhibin Miao Department of Mechanical and Electrical Engineering Heilongjiang Institute of Technology Harbin, China Wei Li Department of Mechanical and Electrical Engineering Heilongjiang Institute of Technology Harbin, China Abstract Determination of optimal machining parameters - spindle rate, feed rate, and depth of cut - has been a research topic for decades. Since the parameters of CNC machining significantly influence part machining time, part surface quality, and tool life, techniques of determining optimal machining parameters are in high demand in manufacturing industry. Usually the depth of cut and spindle rate are determined according to machinist manuals before machining; and the feed rate is determined subjectively either by CNC machine operators or programmers. As a result, the feed rate is not optimal in terms of the machining condition at every cutter location, and it is fixed at a conservative value causing longer machining time or shorter tool life. In this work, a generic and intelligent approach of feed rate determination for CNC profile milling is proposed. First a simplified cutting force model is introduced and an example database of machining parameters is presented. Second a fuzzy rule-based system is established to predict the cutting force based on the radial and axial depths of cut, and the assumed feed rate. Then identify the geometric features of the part, calculate the engagement angles of the geometric features, and find optimal feed rates for them. Finally apply this approach on an example part for profile milling, and the results are simulated with CATIA CAD/CAM system to demonstrate the advantages of this approach. key words Fuzzy Logical System,Machining Parameters Determination, CNC Milling, and Intelligent Machining. I. INTRODUCTION In mechanical parts machining, cutting efficiency, part accuracy and finish, and tool life are the major concerns. Higher cutting efficiency can reduce manufacturing costs, better part accuracy and finish can improve part quality, and extended tool life can benefit part machining. Many researches have been carried out on these machining concerns in terms of machining parameters such as spindle speed, feed rate, and depth of cut. Optimal machining parameters can significantly improve cutting efficiency and part quality. Usually the spindle speed and depth of cut are determined beforehand according to workpiece material and tool material and size; and the feed rate is determined by a machinist based on his/her working experience. Such feed rate is often quite conservative and fixed in machining a whole part due to the concern that if the feed rate is too high, the surface quality is reduced, and the tool wears out severely, or even breaks down ([6]). The conservative feed rate is not optimal since the geometry varies across the part and the cutting force changes accordingly. Therefore, the feed rate should be adjusted for different features. Optimal feed rate could be determined based on part material, tool material and size, cutting force, and depth of cut. The proposed approaches on feed rate determination can be classified as on-line and off-line approaches. The on-line approaches utilize force/torque sensors on tools to measure the cutting forces/torques when machining and adjust the feed rate based on the cutting force/torque ([1]). However, the control system and sensors in the on-line approaches are quite expensive, so these approaches are not widely used in industry. On the other hand, the off-line approaches predict cutting forces according to cutting force models and set different feed rates at different locations ([4], [5]). To determine the optimal feed rate, the current off-line approaches interpolate the experimental machining data to calculate the cutting force and find the proper feed rate. However, the drawback of these methods is that the interpolating surface is usually not smooth and the predicted cutting force is not reasonable and accurate. In this work, a fuzzy system approach of feed rate determination for CNC milling is proposed. First a simplified cutting force model is introduced and an example database of machining parameters is presented. Second a fuzzy rule-based system is established to predict cutting forces based on the radial and axial depth of cut, and the feed rate. Then the geometric features of the part are identified, the engagement angles for the geometric features are calculated, and the optimal feed rates are found. Finally this approach is applied on an example part for profile milling, and the results are simulated with CATIA CAD/CAM system to demonstrate the advantages of this approach /09/\$ IEEE 1911 ICIEA 2009

4 B. Fuzzy Rules A fuzzy rule base should be set up after the membership functions for the fuzzy variables have been defined. Generally a fuzzy rule of a rule base is expressed in the form of a logical statement, e.g. IF_THEN ([7]). However, this fuzzy system has three inputs and one output, which is called multiple-input-and-single-output (MISO) system, the logical operator AND is used to connect the three inputs to form an aggregated statement as a rule, and all the rules are in the form as IF_AND_AND_THEN. Each fuzzy variable of the input has three different membership functions and the combination of the three fuzzy variables can compose twenty seven rules in this fuzzy system. The combination is listed in Table 2. TABLE II. COMBINATION OF THE MEMBERSHIP FUNCTIONS OF FUZZY VARIABLES Axial Depth of Cut is Low Cutting Force Slow Medium Fast Low S1 S2 S3 Radial Depth of Medium S2 S3 M1 Cut High S2 M1 M2 Axial Depth of Cut is Medium Cutting Force Slow Medium Fast Low S1 S3 M1 Radial Depth of Medium S2 M1 M2 Cut High S3 M3 L1 Cutting Force Radial Depth of Cut Axial Depth of Cut is High Slow Medium Fast Low S2 S3 M2 Medium S3 M3 L1 High M1 M3 L3 Based on the Table 2, the twenty seven fuzzy rules can be composed as followings and form a rule base. IF the axial depth of cut is low AND the radial depth of cut is low AND the feed rate is slow, THEN the cutting force is S1. IF the axial depth of cut is low AND the radial depth of cut is low AND the feed rate is medium, THEN the cutting force is S2. IF the axial depth of cut is high AND the radial depth of cut is high AND the feed rate is fast, THEN the cutting force is L3. Each fuzzy rule in this rule base reflects a specific machining case with different machining parameters in principle and is correct with respect to the machining parameter database. For example, in the first rule, when the radial depth of cut is low, the axial depth of cut is low, and the feed rate is slow, the cutting force is the level one of small. This fuzzy rule describes a portion of the relationship between the cutting force and the fuzzy variables, and it is a qualitative interpolation of some data in the machining parameter database. With all the fuzzy rules, the machining parameter database is interpolated qualitatively and the function of the cutting force is represented completed. The fuzzy rule base is the heart of the fuzzy system and can be used to predict the cutting force according to the three inputs, the axial depth of cut, the radial depth of cut, and the feed rate. C. Cutting Force Prediction With the fuzzy rule base, instead of the close-formed equation of the cutting force, the cutting force can be calculated. Determining the cutting force value using the fuzzy rule base is called fuzzy reasoning. Since the fuzzy rules reflect the actual machining correctly, the predicted cutting force is reasonable and close to reality if some new values of the fuzzy variables are input. In detail, two approaches, the min-max-gravity method and product-sum-gravity method, are popular in the fuzzy reasoning process ([8]). Because of the large amount of machining data, the product-sum-gravity method is employed in this work for more precise cutting force prediction. In this method, the result of the fuzzy reasoning is obtained by calculating the algebraic products of the fuzzy variables and summing the products. However, the result of the fuzzy reasoning is not cutting force itself and can not be used directly. This value should be defuzzified into the predicted cutting force. D. Defuzzification of Cutting Force Defuzzification in this procedure is to map the fuzzy reasoning result to the actual cutting force. The center average defuzzification is commonly used in fuzzy logic systems, and it is computationally simple and intuitively plausible, so the center average defuzzification is used in the approach. As a result, the relationship between the cutting force and the fuzzy variables in this fuzzy system is shown in Figure 6 and Figure 7. Figure 6. Surface of the Fuzzy System; When the Axial Depth of Cut is 5.5 mm 1914

5 shown as the curve in between. Based on the information about the design of the part and the cutter size, the tool path of CNC profile milling is planned and shown as the external curve. Figure 7. When the Axial Depth of Cut is 6 mm V. PROCEDURE OF OPTIMAL FEED RATE DETERMINATION The goal of this work is to determine the optimal feed rate for each geometry feature in the part profile. The criteria of the optimal feed rate is that under this feed rate the cutting force is close but less than the maximum cutting force, which the tool can undertake without severe tool wear or tool breakage. By using the fuzzy system, the cutting force can be estimated when the depth of cut and the feed rate are known, and the cutting force is compared with the maximum cutting force. With several iterations of calculation, the optimal feed rate can be found. The procedure of the optimal feed rate determination is provided in five steps. Find the maximum cutting force based on the workpiece material, cutter size and material. Set the axial depth of cut for each profile machining. Locate the geometry features of the part profile. Calculate the cutter engagement angle and the radial depth of cut for each geometry feature. Initialize a feed rate for each feature. Apply the fuzzy logic system to find the cutting force for a feature. Compare the cutting force with the maximum cutting force; if the cutting force is less than the maximum cutting force, increase the feed rate; if the cutting force is greater than the maximum cutting force, decrease the feed rate. Repeat step 3. Otherwise, go to the next step. After find the optimal feed rate for one feature, move to the next feature, and repeat step 3. Otherwise, end the program. VI. APPLICATIONS To demonstrate the advantages of this approach, it is applied on an example part to plan the feed rate for its CNC profile machining. This example part on a platform is shown in Figure 8. Suppose a stock is prepared for this part, and its width, length, and height are 125 mm, 130 mm, and 20 mm, respectively. A flat end mill with the radial of 10 mm is used to machine this part, and the axial depth of cut in this CNC profile machining is set as 5 mm. In Figure 9, the part profile is the inner curve and the machined part after rough machining is Figure 8. Example Part for CNC Profile Machining Figure 9. Tool Path of the Profile Milling By evaluating the part profile, the convex turn, concave turn, and concave arcs with different radius are located. For each geometry feature, the cutter engagement angle is calculated and shown in Figure 10. It can be seen that the cutter engagement angles are greater at CD, IJ, MN, and RQ segments, and these angles are listed in Table 3. At each corner, the cutter engagement angle drops. For example, at the corner OP segment the cutter engagement angle is only Based on the cutter engagement angles, this approach can find the optimal feed rates for each geometry feature in the part profile machining. TABLE III. Engagement Angle (Degree) (mm/min) FEED RATES FOR DIFFERENT GEOMETRIC FEATURES Tool Path Segments AB CD IJ MN OP RQ

6 In this case, if the feed rate is set as 135 mm/min by an experienced NC operator for the unmanned machining without any tool breakage or impaired surface quality, the total machining time of this profile milling is 2916 seconds. Whereas, using the feed rates determined with this proposed method (see Table 3), the total machining time of the same profile milling is 2374 seconds. Thus, this intelligent feed rate determination method saves the machining time of 18.6% with respect to the conventional method. The profile machining of the part is simulated with the optimal feed rates with CATIA CAD/CAM system (see Figure 11). VII. CONCLUSIONS A generic and intelligent approach of the feed rate determination for CNC profile machining is proposed. The way to build a fuzzy inference system based on any machining parameter database is introduced. The cutting force can be predicted when the axial and radial depth of cut and the feed rate are input. With the maximum cutting force, the optimal feed rate can be found. The work introduces a generic method to predict the cutting force for different type of workpiece and tool material. By identifying the geometric features of the part profile, the proper feed rate can be determined for each geometric features and the CNC profile milling is carried out with different feed rates from place to place. Thus, the cutting efficiency will reach maximum in this cutting. This approach can also be employed for high speed cutting. ACKNOWLEDGMENT The financial support of this work from the Science and Technology Department of Helongjiang is thankfully acknowledged. This work is supported by the Key Science and Technology Project of Heilongjiang of China under Grant No. GZ07A107 and the Key Research Program of Heilongjiang Institute of Technology under Grant No. Z REFERENCES Figure 10. Cutter Engagement Angles for Geometric Features Figure 11. Simulation of CNC Profile Machining with CATIA System [1] X. H. Cong, H. Ning and Z. B. Miao A Fuzzy Logical Application in a Robot Self Navigation, Proceedings of the International Conference on Industrial Electrical Application, Harbin, China [2] Z. Z. Chen and Z. B. Miao A Intelligent Approach of Non-Constant Determination for High-Performance 2D CNC Milling, International Journal of Computer Applications in Technology, Canada [3] S. H. Bae, K. Ko, B. H. Kim, and B. K. Choi: Automatic Feedrate Adjustment for Pocket Machining, Computer-Aided Design, Vol.35, pp , [4] D. K. Baek, T. J. Ko, and H. S. Kim: Optimization of in a Face Milling Operation Using a Surface Roughness Model, International Journal of Machine Tools & Manufacture, Vol.41, pp , [5] J. H. Ko, W. S. Yun, and D. W. Cho: Off-Line Scheduling Using Virtual CNC Based on an Evaluation of Cutting Performance, Computer-Aided Design, Vol.35, pp , [6] B. K Choi, and R. Jerard, Sculptured Surface Machining Theory and Applications, Kluwer Academic Publishers, [7] W. L. R. Ip: A Fuzzy Basis Material Removal Optimization Strategy for Sculptured Surface Machining Using Ball-nosed Cutters, International Journal of Production Researches, Vol.36, No.9, pp , [8] M. Young, The Technical Writer's Handbook. Mill Valley, CA: University Science, [9] J. M. Lee, C. N. Chu, S. Y. Kim, and B. H. Kim: Feed-Rate Optimization of Ball End Milling Considering Local Shape Features, Annals of the CIRP, Vol.46, [10] L. X. Wang, A Course in Fuzzy Systems and Control, Prentice Hall PTR,

### CNC Applications. Tool Radius Compensation for Machining Centers

CNC Applications Tool Radius Compensation for Machining Centers Why Cutter Diameter Compensation? When machining finished surfaces with the side of a milling cutter (generally called profiling), the accuracy

### Prediction of Cutting Force in 3-Axis CNC Milling Machines Based on Voxelization Framework for Digital Manufacturing

Procedia Manufacturing Volume, 2015, Pages 1 10 43rd Proceedings of the North American Manufacturing Research Institution of SME http://www.sme.org/namrc Prediction of Cutting Force in 3-Axis CNC Milling

### The Impact of Machining Parameters on Peak Power and Energy Consumption in CNC Endmilling

Energy and Power 2013, 3(5): 85-90 DOI: 10.5923/j.ep.20130305.02 The Impact of Machining Parameters on Peak Power and Energy Consumption in CNC Endmilling Andy Simoneau *, Jonathan Meehan Department Mechanical

### Machining processes simulation with the use of design and visualization technologies in a virtual environment

PLM: Assessing the industrial relevance 271 Machining processes simulation with the use of design and visualization technologies in a virtual environment Bilalis Nikolaos Technical University of Crete

### Advance in Monitoring and Process Control of Surface Roughness Somkiat Tangjitsitcharoen and Siripong Damrongthaveesak

Advance in Monitoring and Process Control of Surface Roughness Somkiat Tangjitsitcharoen and Siripong Damrongthaveesak Abstract This paper presents an advance in monitoring and process control of surface

### Figure 1. Experimental setup for the proposed MLR-IPSRR system.

Figure 1. Experimental setup for the proposed MLR-IPSRR system. 99 The hardware included: A Fadal vertical CNC milling machine with multiple tool changing and a 15 HP spindle. A Kistler 9257B type dynamometer

### Architecture for Direct Model-to-Part CNC Manufacturing

Architecture for Direct Model-to-Part CNC Manufacturing Gilbert Poon, Paul J. Gray, Sanjeev Bedi Department of Mechanical Engineering, University of Waterloo Waterloo, Ontario, N2L 3G1, Canada and Daniel

### Chapter 2 Fractal Analysis in CNC End Milling

Chapter 2 Fractal Analysis in CNC End Milling Abstract This chapter deals with the fractal dimension modeling in CNC end milling operation. Milling operations are carried out for three different materials

### Milling. COPYRIGHT 2008, Seco Tools AB 1/111

Milling 1/111 2/111 Milling A simple choice! Experts required? No Just follow some basic rules. 3/111 Face milling 4/111 Square shoulder milling 5/111 Disc milling 6/111 Copy milling 7/111 Plunge milling

### Mechanics and Dynamics of 5-axis Ball-end Milling Operations

Mechanics and Dynamics of 5-axis Ball-end Milling Operations Erdem OZTURK, PhD.Candidate L.Taner TUNC, PhD. Candidate Assoc.Prof. Erhan BUDAK Manufacturing Research Laboratory, SABANCI UNIVERSITY, ISTANBUL

### Dev eloping a General Postprocessor for Multi-Axis CNC Milling Centers

57 Dev eloping a General Postprocessor for Multi-Axis CNC Milling Centers Mihir Adivarekar 1 and Frank Liou 1 1 Missouri University of Science and Technology, liou@mst.edu ABSTRACT Most of the current

### Zig-Zag Tool Path Generation for Sculptured Surface Finishing

Zig-Zag Tool Path Generation for Sculptured Surface Finishing Debananda Misra V.Sundararajan Paul K. Wright {deb,vsundar,pwright}@me.berkeley.edu Abstract Sculptured surfaces are relatively difficult to

### 8.1 HPC for improved efficiency on standard machine tools by using new fluid-driven spindles

8.1 HPC for improved efficiency on standard machine tools by using new fluid-driven spindles A. Schubert 1, O. Harpaz 2, B. Books 2, U. Eckert 1, R. Wertheim 1 1 Fraunhofer IWU, Reichenhainer Str. 88,

### Neural Network-Based Tool Breakage Monitoring System for End Milling Operations

Journal of Industrial Technology Volume 6, Number 2 Februrary 2000 to April 2000 www.nait.org Volume 6, Number 2 - February 2000 to April 2000 Neural Network-Based Tool Breakage Monitoring System for End

### 2010 CATIA V5 CAM EĞĐTĐMLERĐ ĐÇERĐĞĐ

CATIA V5 CAM EĞĐTĐMLERĐ ĐÇERĐĞĐ CATIA V5 CAM GĐRĐŞ EĞĐTĐMĐ (1 Gün) 1) Manufacturing Workbench Presentation Workbench Introduction Process Presentation Manufacturing Terminology Manufacturing Workbench

### Computer Numerical Control

Training Objective After watching the video and reviewing this printed material, the viewer will gain knowledge and understanding of the basic theory and use of computer numerical control, or CNC, in manufacturing.

### CNC Applications. Programming Arcs

CNC Applications Programming Arcs Why Program Arcs? Many components have radius features which require machining. Arc programming on turning centers eliminates the need for form tools and results in a

### NX CAM TURBOMACHINERY MILLING PRODUCT REVIEW

Dr. Charles Clarke PRODUCT REVIEW Market drivers...3 Existing specialist applications...3 A new generation of software that provides flexibility...4 Specialized operations for blisks and impellers...4

### 3D SCANNING: A NEW APPROACH TOWARDS MODEL DEVELOPMENT IN ADVANCED MANUFACTURING SYSTEM

3D SCANNING: A NEW APPROACH TOWARDS MODEL DEVELOPMENT IN ADVANCED MANUFACTURING SYSTEM Dr. Trikal Shivshankar 1, Patil Chinmay 2, Patokar Pradeep 3 Professor, Mechanical Engineering Department, SSGM Engineering

### FAGOR CNC 8055 ia-mc Control

FAGOR CNC 8055 ia-mc Control The Fagor 8055 i/a-mc CNC control combines value & reliability with a featured packed modular control. This control was built for the shop environment with a rugged keyboard

### SprutCAM is a CAM system for NC program generation for machining using multi-axis milling, turning, turn/mill, Wire EDM numerically controlled

SprutCAM is a CAM system for NC program generation for machining using multi-axis milling, turning, turn/mill, Wire EDM numerically controlled machines and machining centers. The system enables the creation

### Real-Time Cutting Tool Condition Monitoring in Milling

Paper received: 13.04.2010 DOI:10.5545/sv-jme.2010.079 Paper accepted: 16.12.2010 Franci Čuš - Uroš Župerl* University of Maribor, Faculty of Mechanical Engineering, Slovenia Reliable tool wear monitoring

### Computer-Aided Numerical Control (CNC) Programming and Operation; Lathe Introduction, Advanced Mills

1 of 6 9/9/2014 3:59 PM I. Catalog Information Credit- Degree applicable Effective Quarter: Fall 2014 MCNC 75B Computer-Aided Numerical Control (CNC) Programming and Operation; Lathe Introduction, Advanced

### Radius Compensation G40, G41, & G42 (cutter radius compensation for machining centers, tool nose radius compensation for turning centers)

Radius Compensation G40, G41, & G42 (cutter radius compensation for machining centers, tool nose radius compensation for turning centers) These features are commonly well covered in most basic CNC courses.

### THE INFLUENCE OF STEEL GRADE AND STEEL HARDNESS ON TOOL LIFE WHEN MILLING IN HARDENED TOOL STEEL

THE INFLUENCE OF STEEL GRADE AND STEEL HARDNESS ON TOOL LIFE WHEN MILLING IN HARDENED TOOL STEEL S. Gunnarsson, B. Högman and L. G. Nordh Uddeholm Tooling AB Research and Development 683 85 Hagfors Sweden

### InventorCAM + Inventor. The complete integrated Manufacturing Solution GETTING STARTED

InventorCAM + Inventor The complete integrated Manufacturing Solution GETTING STARTED InventorCAM imachining InventorCAM imachining is an intelligent High Speed Machining CAM software, designed to produce

### Introduction to Fuzzy Control

Introduction to Fuzzy Control Marcelo Godoy Simoes Colorado School of Mines Engineering Division 1610 Illinois Street Golden, Colorado 80401-1887 USA Abstract In the last few years the applications of

### The Influence of Tool Tolerances on the Gear Quality of a Gear Manufactured by an Indexable Insert Hob

technical The Influence of Tool Tolerances on the Gear Quality of a Gear Manufactured by an Indexable Insert Hob Mattias Svahn, Lars Vedmar and Carin Andersson Recently, a new type of hob with carbide

### 1001 Business Center Drive Mount Prospect, IL 60056-2181 Toll Free: (800) 950-5202 Phone: (847) 635-0044 Fax: (847) 635-7866

1001 Business Center Drive Mount Prospect, IL 60056-2181 oll Free: (800) 950-5202 Phone: (847) 635-0044 Fax: (847) 635-7866 http://www.sumicarbide.com Sumitomo offers advanced milling, drilling, and hard

### Object Following Fuzzy Controller for a Mobile Robot

Copyright 2012 American Scientific Publishers All rights reserved Printed in the United States of America Journal of Computational Intelligence and Electronic Systems Vol. 1, 1 5, 2012 Irfan Ullah 1, Furqan

### Effect of Sleeve Shrink-fit on Bearing Preload of a Machine Tool Spindle: Analysis using Finite Element Method

Effect of Sleeve Shrink-fit on Bearing Preload of a Machine Tool Spindle: Analysis using Finite Element Method Aslam Pasha Taj 1, Chandramouli SR 2* ACE Designers Limited, Peenya Industrial Area, Bangalore-560058

### SPINDLE ERROR MOVEMENTS MEASUREMENT ALGORITHM AND A NEW METHOD OF RESULTS ANALYSIS 1. INTRODUCTION

Journal of Machine Engineering, Vol. 15, No.1, 2015 machine tool accuracy, metrology, spindle error motions Krzysztof JEMIELNIAK 1* Jaroslaw CHRZANOWSKI 1 SPINDLE ERROR MOVEMENTS MEASUREMENT ALGORITHM

### Mastercam Instructions. KTH School of Architecture Digital Fabrication Lab - CNC Router Version 2.1 2014-02-06

Mastercam Instructions KTH School of Architecture Digital Fabrication Lab - CNC Router Version 2.1 2014-02-06 CONTENTS: 1. Setup in Rhino and Mastercam 2. Creating A Drilling Operation 3. Creating A Contour

### ME 1355 CAD/CAM LABORATORY CNC MILLING PROGRAM. Study of G Codes and M Codes to Write Manual Part Programming for Fanuc Control Systems

ME 1355 CAD/CAM LABORATORY CNC MILLING PROGRAM Ex.No.1 Study of G Codes and M Codes to Write Manual Part Programming for Fanuc Control Systems PREPARATORY FUNCTION ( G CODES ) The preparatory functions

### CNC Applications Speed and Feed Calculations

CNC Applications Speed and Feed Calculations Photo courtesy ISCAR Metals. Turning Center Cutters What types of cutters are used on CNC turning Centers? Carbide (and other hard materials) insert turning

### Overview. Milling Machine Fundamentals. Safety. Shop Etiquette. Vehicle Projects Machine Shop

Overview Milling Machine Fundamentals Wayne Staats, UW-Madison FSAE Safety Shop Etiquette Before Machining Indicating Calculating Feeds and Speeds Machining Maintenance Safety Respect the machines Common

### Cutting Tool Geometries

Training Objectives After watching the video and reviewing this printed material, the viewer will gain knowledge and understanding of the shapes, angles, and other geometric aspects of single-point and

### HOBBING MACHINE TYPE ZFWZ 8000x40

Inventory number 416/635 Year of production 1973 Serial number 7160 HOBBING MACHINE TYPE ZFWZ 8000x40 Application The machine is provided for milling cylindrical, helical and helix cogwheels. The tooth

### Presentation on CNC MACHINES. By: Hafiz Muhammad Rizwan

Presentation on CNC MACHINES By: Hafiz Muhammad Rizwan WELCOME CNC Machines What is a CNC Machine? CNC : Computer Numerical Control Conventionally, an operator decides and adjusts various machines parameters

### Grinding, lapping, polishing, EDM, laser cut, water jest, etc.

Grinding, lapping, polishing, EDM, laser cut, water jest, etc. Grinding is an abrasive machining process that uses a grinding wheel as the cutting tool. Aluminum oxide, silicon carbide, diamond, and cubic

### Reflection and Refraction

Equipment Reflection and Refraction Acrylic block set, plane-concave-convex universal mirror, cork board, cork board stand, pins, flashlight, protractor, ruler, mirror worksheet, rectangular block worksheet,

### Introduction to CNCMachining. Krishanu Biswas Department of Materials and Metallurgical Engineering IIT Kanpur

Introduction to CNCMachining Krishanu Biswas Department of Materials and Metallurgical Engineering IIT Kanpur CNC Machines What is a CNC Machine? CNC : Computer and Numeric Control Conventionally, an operator

### High speed machining and conventional die and mould machining

High speed machining and conventional die and mould machining Reprint from HSM - High Speed Machining There are a lot of questions about HSM today and many different, more or less complicated, definitions

### A FUZZY LOGIC APPROACH FOR SALES FORECASTING

A FUZZY LOGIC APPROACH FOR SALES FORECASTING ABSTRACT Sales forecasting proved to be very important in marketing where managers need to learn from historical data. Many methods have become available for

### Constant scallop-height tool path generation for three-axis sculptured surface machining

COMPUTER-AIDED DESIGN Computer-Aided Design 34 2002) 64±654 www.elsevier.com/locate/cad Constant scallop-height tool path generation for three-axis sculptured surface machining Hsi-Yung Feng*, Huiwen Li

### G and M Programming for CNC Milling Machines. Denford Limited Birds Royd Brighouse West Yorkshire England HD6 1NB Tel: +44 (0) 1484 712264

COMPUTERISED MACHINES AND SYSTEMS G and M Programming for CNC Milling Machines Denford Limited Birds Royd Brighouse West Yorkshire England HD6 1NB Tel: +44 (0) 1484 712264 G AND M Fax: PROGRAMMING +44

### CAD/CAM DESIGN TOOLS. Software supplied with all new and upgraded Boxford Lathes, Mills and Routers

CAD/CAM DESIGN TOOLS Software supplied with all new and upgraded Boxford Lathes, Mills and Routers The Boxford CAD/CAM Design Tools software is a unique suite of integrated CAD and CAM tools designed specifically

### Ruled Surface Machining on Five-Axis CNC Machine Tools

0 Journal of Manufachlrzng Processes Vol. 2mo. 1 Ruled Surface Machining on Five-Axis CNC Machine Tools Rong-Shine Lin, Dept. of Mechanical Engineering, National Chung Cheng University, Chia-Yi, Taiwan

### DMLS / SLM Metal 3D Printing.

DMLS / SLM Metal 3D Printing. An introductory design guide for our 3d printing in metal service. v2.2-8th July 2015 Pricing considerations. Part Volume. One of the biggest factors in the price for DMLS

### Optimization of Fuzzy Inventory Models under Fuzzy Demand and Fuzzy Lead Time

Tamsui Oxford Journal of Management Sciences, Vol. 0, No. (-6) Optimization of Fuzzy Inventory Models under Fuzzy Demand and Fuzzy Lead Time Chih-Hsun Hsieh (Received September 9, 00; Revised October,

### Optimization of Machining Parameters to Minimize Tool Deflection in the End Milling Operation Using Genetic Algorithm

World Applied Sciences Journal 6 (1): 64-69, 2009 ISSN 1818-4952 IDOSI Publications, 2009 Optimization of Machining Parameters to Minimize Tool Deflection in the End Milling Operation Using Genetic Algorithm

### Mathematics on the Soccer Field

Mathematics on the Soccer Field Katie Purdy Abstract: This paper takes the everyday activity of soccer and uncovers the mathematics that can be used to help optimize goal scoring. The four situations that

### Defuzzification. Convert fuzzy grade to Crisp output. *Fuzzy Engineering, Bart Kosko

Defuzzification Convert fuzzy grade to Crisp output *Fuzzy Engineering, Bart Kosko Defuzzification (Cont.) Centroid Method: the most prevalent and physically appealing of all the defuzzification methods

### Integrated Modeling for Data Integrity in Product Change Management

Integrated Modeling for Data Integrity in Product Change Management László Horváth*, Imre J. Rudas** Institute of Intelligent Engineering Systems, John von Neumann Faculty of Informatics, Budapest Tech

### Drilling Speeds and Feeds

EML2322L MAE Design and Manufacturing Laboratory Drilling Speeds and Feeds The speed of a drill is usually measured in terms of the rate at which the outside or periphery of the tool moves in relation

### Proficiency Test For Machining Center

Proficiency Test For Machining Center Name: Date: Section One: General CNC Questions 1) The spindle speed for a particular tool in a program is incorrect and you wish to reduce it. The kind of CNC word

### Laser Engraving Resolution Chart

Test Results Laser Engraving Resolution Chart 31/3/2015 General The following report describes the measurements results obtained when scanning a metal sheet that a resolution chart was engraved on its

### CALIBRATION OF A ROBUST 2 DOF PATH MONITORING TOOL FOR INDUSTRIAL ROBOTS AND MACHINE TOOLS BASED ON PARALLEL KINEMATICS

CALIBRATION OF A ROBUST 2 DOF PATH MONITORING TOOL FOR INDUSTRIAL ROBOTS AND MACHINE TOOLS BASED ON PARALLEL KINEMATICS E. Batzies 1, M. Kreutzer 1, D. Leucht 2, V. Welker 2, O. Zirn 1 1 Mechatronics Research

### Intelligent cutting tool condition monitoring in milling

of Achievements in Materials and Manufacturing Engineering VOLUME 49 ISSUE 2 December 2011 Intelligent cutting tool condition monitoring in milling U. Zuperl*, F. Cus, J. Balic Faculty of Mechanical Engineering,

### 5-Axis Test-Piece Influence of Machining Position

5-Axis Test-Piece Influence of Machining Position Michael Gebhardt, Wolfgang Knapp, Konrad Wegener Institute of Machine Tools and Manufacturing (IWF), Swiss Federal Institute of Technology (ETH), Zurich,

### Course outline. Know Your Machine From A Programmer s Viewpoint 11 If you ve had experience with conventional (non-cnc) machine tools 11

Course outline Know Your Machine From A Programmer s Viewpoint 11 If you ve had experience with conventional (non-cnc) machine tools 11 Machine Configurations 13 Vertical machining centers 13 C-frame style

### The Challenges for CAM Systems and Users in 5-Axis Machining

The Challenges for CAM Systems and Users in 5-Axis Machining Robert Endl and Jeffrey Jaje Sescoi R&D, Department Manager, Neu-Isenburg, Germany and Sescoi USA, Senior Engineer Marketing, Southfield, Michigan,

### PROCESS MONITORING AND CONTROL OF MACHINING OPERATIONS

PROCESS MONITORING AND CONTROL OF MACHINING OPERATIONS Uche R. 1 and Ebieto C. E. 2 1 Department of Mechanical Engineering, Federal University of Technology, Owerri, Nigeria 2 Department of Mechanical

### Milling and Machining Center Basics

Training Objectives After watching the video and reviewing this printed material, the viewer will gain knowledge and understanding of basic milling theories and procedures. In addition, the viewer will

### NTC Project: S01-PH10 (formerly I01-P10) 1 Forecasting Women s Apparel Sales Using Mathematical Modeling

1 Forecasting Women s Apparel Sales Using Mathematical Modeling Celia Frank* 1, Balaji Vemulapalli 1, Les M. Sztandera 2, Amar Raheja 3 1 School of Textiles and Materials Technology 2 Computer Information

### Chapter 6 Machining Center Carbide Insert Fundamentals

This sample chapter is for review purposes only. Copyright The Goodheart-Willcox Co., Inc. All rights reserved. N10G20G99G40 N20G96S800M3 N30G50S4000 N40T0100M8 N50G00X3.35Z1.25T0101 N60G01X3.25F.002 N70G04X0.5

### That s E[M]CONOMY: Not just training: Real Action! CONCEPT TURN 250. Training reality with industrial performance

[ That s ] E[M]CONOMY: Not just training: Real Action! CONCEPT TURN 250 Training reality with industrial performance Concept TURN 250 Uncompromising quality right down to the last bolt, at an unbeatable

### Machining Center Equipped with Unparalleled Rigidity and Agility NHX6300

Press Release Mori Seiki Co., Ltd. Head Office: 2-35-16 Meieki, Nakamura-ku, Nagoya City 450-0002, Japan TEL: +81(0)52-587-1830 FAX: +81(0)52-587-1833 January 24, 2013 Machining Center Equipped with Unparalleled

### Design and Analysis Special Shaped Milling Cutter Using Finite Element Analysis

Vol. 3, Issue. 6, Nov - Dec. 23 pp-376-3722 ISSN: 2249-6645 Design and Analysis Special Shaped Milling Cutter Using Finite Element Analysis K. Chaitanya, M. Kaladhar 2 M.Tech student,department of Mechanical

### SEMMME2-20 - SQA Unit Code H2AB 04 Operating CNC Milling Machines

Overview This unit identifies the competences you need to operate Computer Numerical Control (CNC) three-axis or multi-axis machines, or CNC machining centres, in accordance with approved procedures. You

### Milling 1/111 2/111. COPYRIGHT 2008, Seco Tools AB. COPYRIGHT 2008, Seco Tools AB

Milling 1/111 Milling A simple choice! 2/111 Experts required? No Just follow some basic rules. 3/111 Face milling 4/111 Square shoulder milling 5/111 Disc milling 6/111 Copy milling 7/111 Plunge milling

### Geometric and force errors compensation in a 3-axis CNC milling machine

International Journal of Machine Tools & Manufacture 44 (2004) 128 1291 www.elsevier.com/locate/ijmactool Geometric and force errors compensation in a -axis CNC milling machine Chana Raksiri, Manukid Parnichkun

### PARAMETER OPTIMIZATION IN VERTICAL MACHINING CENTER CNC FOR EN45 (STEEL ALLOY) USING RESPONSE SURFACE METHODOLOGY

International Journal of Mechanical Engineering and Technology (IJMET) Volume 7, Issue 2, March-April 2016, pp. 288 299, Article ID: IJMET_07_02_031 Available online at http://www.iaeme.com/ijmet/issues.asp?jtype=ijmet&vtype=7&itype=2

### CHAPTER 1. Introduction to CAD/CAM/CAE Systems

CHAPTER 1 1.1 OVERVIEW Introduction to CAD/CAM/CAE Systems Today s industries cannot survive worldwide competition unless they introduce new products with better quality (quality, Q), at lower cost (cost,

### Off-line Model Simplification for Interactive Rigid Body Dynamics Simulations Satyandra K. Gupta University of Maryland, College Park

NSF GRANT # 0727380 NSF PROGRAM NAME: Engineering Design Off-line Model Simplification for Interactive Rigid Body Dynamics Simulations Satyandra K. Gupta University of Maryland, College Park Atul Thakur

### InvoMilling AGILE GEAR MANUFACTURING

InvoMilling AGILE GEAR MANUFACTURING Cutting lead times in gear manufacturing Machining gears normally requires dedicated tools for the specific gear profile. With the patented InvoMilling process it is

### SINUMERIK 810/840D DIN Programming for Milling

SINUMERIK 810/840D DIN Programming for Milling Training Manual Edition 2008.01 Training Documentation SINUMERIK 810/840D Operating and Programming DIN - Milling Valid for: Control SINUMERIK 810/840D Edition

### CNC Portal Milling Machine FZ 50. CNC Power Milling Technology

CNC Portal Milling Machine FZ 5 CNC Power Milling Technology FZ 5 Portal Milling Machine for Heavy Cutting The newly developed portal milling machine FZ 5 is based on a flexible machine design which can

### Machine Tool Practices, 8th Edition 2006 Correlated to: South Carolina Manufacturing Course Standards for Machine Technology 1, 2, 3, 4

62300100 A. PERFORMING WORK SAFETY PRACTICES 62300101 Demonstrate the ability to work safely. SE: p.6-13, 208-210, 233-235 TE: Manual p.11-12, 51-52, 55-58 TECH: CD Shop Safety: PowerPoint Slides 1-8 62300102

### EXPERIMENTAL AND NUMERICAL ANALYSIS OF THE COLLAR PRODUCTION ON THE PIERCED FLAT SHEET METAL USING LASER FORMING PROCESS

JOURNAL OF CURRENT RESEARCH IN SCIENCE (ISSN 2322-5009) CODEN (USA): JCRSDJ 2014, Vol. 2, No. 2, pp:277-284 Available at www.jcrs010.com ORIGINAL ARTICLE EXPERIMENTAL AND NUMERICAL ANALYSIS OF THE COLLAR

### DUGARD. Machine Tools Since 1939. Dugard 700L Series Heavy Duty CNC Lathes. www.dugard.com

DUGARD Machine Tools Since 1939 Dugard 700L Series Heavy Duty CNC Lathes www.dugard.com Dugard 700L Heavy Duty CNC Lathe 2000, 3000 or 4000mm bed length Designed for easy and convenient operation The concave

### It simply works! Safe process monitoring.

It simply works! Safe process monitoring. A solution that simply works. It simply works: BK Mikro All safely under control: In automated manu facturing there is an enormous range of possible uses for the

### Three Key Elements of a Cutting Tool

End Mill Training Three Key Elements of a Cutting Tool Geometry Cutting Tool 3 Elements Needed in a Good Cutting Tool Well Balanced For Best Performance Only Good as the Weakest Link End Mill Terms A -

### Precise heavy-duty cutting

PR 130 / PR 150 / PR 160 / PR 180 / PR 200 / PR 260 Precise heavy-duty cutting P-SERIES K-SERIES T-SERIES MILLFORCE 02 / Fields of application 03 / Machine concept 04 / Machine technology 05 / Options

### MET 306 Activity 6. Using Pro/MFG Milling Operations Creo 2.0. Machining a Mast Step

Using Pro/MFG Milling Operations Creo 2.0 Machining a Mast Step If the Trim option is grayed out when trimming the mill volume, Save (making sure the.asm file is going to the correct subdirectory), Exit

### Shop-Talk Cad/Cam The language between man and machine!

Shop-Talk Cad/Cam The language between man and machine! The job shop progamming solution Its so simple even a CaveMan can use it! CNC Solutions, Inc. 13955 Murphy Road #122 Stafford, TX 77477 TEL: 832-407-4455

### MIKRON HPM 1150U HPM 1350U

MIKRON HPM 1150U HPM 1350U High performance milling versus high speed milling - the one cannot replace the other! While with high speed milling the objective is to create as much surface on the workpiece

### Algorithms for Real-Time Tool Path Generation

Algorithms for Real-Time Tool Path Generation Gyula Hermann John von Neumann Faculty of Information Technology, Budapest Polytechnic H-1034 Nagyszombat utca 19 Budapest Hungary, hermgyviif.hu Abstract:The

### Home"" """"> ar.cn.de.en.es.fr.id.it.ph.po.ru.sw

Home"" """"> ar.cn.de.en.es.fr.id.it.ph.po.ru.sw Milling of Grooves, Elongated Slots and Break-throughs - Course: Techniques for machining of material. Trainees' handbook of lessons (Institut fr Berufliche

### Optimized NC programming for machinery and heavy equipment. Summary NX CAM software redefines manufacturing productivity with a full range of NC

Siemens PLM Software NX CAM for machinery Optimized NC programming for machinery and heavy equipment Benefits Effectively program any type of machinery part Program faster Reduce air cutting Automate programming

### Prediction of Surface Roughness in CNC Milling of Al7075 alloy: A case study of using 8mm slot mill cutter

Prediction of Surface Roughness in CNC Milling of Al7075 alloy: A case study of using 8mm slot mill cutter J. Kechagias, P. Kyratsis, K. Kitsakis and N. Mastorakis Abstract The current study investigates

### Machine Tool Control. Besides these TNCs, HEIDENHAIN also supplies controls for other areas of application, such as lathes.

Machine Tool Control Contouring controls for milling, drilling, boring machines and machining centers TNC contouring controls from HEIDENHAIN for milling, drilling, boring machines and machining centers

### Artificial Intelligence: Fuzzy Logic Explained

Artificial Intelligence: Fuzzy Logic Explained Fuzzy logic for most of us: It s not as fuzzy as you might think and has been working quietly behind the scenes for years. Fuzzy logic is a rulebased system

### Automotive Applications of 3D Laser Scanning Introduction

Automotive Applications of 3D Laser Scanning Kyle Johnston, Ph.D., Metron Systems, Inc. 34935 SE Douglas Street, Suite 110, Snoqualmie, WA 98065 425-396-5577, www.metronsys.com 2002 Metron Systems, Inc

### CNC Part Programming of Axisymmetric Components

CNC Part Programming of Axisymmetric Components Y.Praveen Naidu Department of Mechanical Engineering, VITS College of Engineering, Anandapuram, Sontyam, Visakhapatnam. N.Sateesh Department of Mechanical

### Removing chips is a method for producing plastic threads of small diameters and high batches, which cause frequent failures of thread punches.

Plastic Threads Technical University of Gabrovo Yordanka Atanasova Threads in plastic products can be produced in three ways: a) by direct moulding with thread punch or die; b) by placing a threaded metal