EndMills For Hardened Steel

Transcription

1 For Hardened Hi-Performance Flute 45 For Tough Features : - Manufactured from premium sub micron grain carbide. - Increased core diameter for added strength. - Use for light finishing cuts - CG coated for increased tool life. Work Aluminium Carbon Hardened Nickel / Inconel Stainless Cast Iron Titanium Length Of Cut Flute Square End 45 Upto 5 HRc Shank Design HA Tolerance: Shank : h & Cut : h1 Overall Length Excellent Regular Length Cut Good Cut Description Coated - EDP # Shank Length Overall Of Cut Length CG Shank E.7

2 Technical Data Speeds & Feeds - High Performance Flute 45 & Multi Flute Group Acid Resistant / stainless High Tensile Cast s Aluminium & Aluminium s Special s Non ferrous Metals Plastics Magnesium s Structural Free Cutting Unalloyed Heat Treatable Unalloyed Case Hard ed Case Hardened Nitriding Stainless, Sulphured Austenitic, Martensitic Low Carbon Medium Carbon ed Heat Treatable Tool High Speed Spring Cast Iron Spheroidal Graphite & Malleable Ci Chilled Ci Aluminium & Ti s Al Wrought s Al Cast s < 1%si Al Cast s > 1%si Special s Ti & Ti s Copper Low ed Brass Bronze Duro Plastics Thermoplastics Mg s Cutting Speed (Vc - m/min) Flute Multi 45 Flute NOTE: All the parameters are taken for closed slot & for 1XD(depth). For open slot increase speed by 1% & for depth more than 1XD decrease speed by 1% Close Slot Open Slot E.57

3 Technical Data Feed Rate Chart General Purpose & High Performance Feed (mm/tooth) meter High Tensile s Acid Resistant Cast Aluminium s Titanium s Non Ferrous Plastic Mg s Flute Ball Nose 3 Feed (mm/tooth) meter High Tensile s Acid Resistant Al & Al s Cast Non ferrous E.4

4 Technical Data Coating Details Coating Micro Hardness(HV.5) Coefficient Of Friction Against Maximum Service TiAlN Futura Nano (TiAlN) TiN Titanium Nitride (TiN) CG Alcrona (AlCrN) Temperature c Coating Colour Violet Grey Gold Yellow Blue Grey Features Increased Cutting Protection High Oxidation Resistance Stability Against Hot Hardness Protection Abrasive & High Wear Resistance Against Abrasive Adhesive Wear Wear & Erosion Coating CH Helica (AlCr) Aldura (AlCrN) Micro Hardness(HV.5) Coefficient of Friction Against Maximum Service Temperature c Coating Colour Features Copper Abrasions Resistance Maximum Toughness Extra Shear Strength >11 Blue Grey Improved Tool Edge Stability Oxidation Resistance High Thermal Resistance E.5

5 Technical Data Endmills Operating Data Endmill Selection - The more flutes on the endmill will usually improve the surface finish of the part. If work piece finish is important, select four or more flutes. - Fewer flutes permit greater chip carrying capacity - Always select the largest diameter end mill for the cut being made. This helps to keep deflection to a minimum, and decreases the chip load. - Keep tool overhang to a minimum, always insert the shank as far as possible into the holder. Collet holders are preferred set up. Coolant - Many operations can be run dry with a blast of air to remove chips. - Light cutting oil or water-soluble oil may extend tool life and improve surface finishes. - If coolant is used, you must maintain a heavy flood directed on the cutting edge. This minimizes the chance of intermittent cooling, which can cause thermal cracking of the carbide. - A heavy flow of coolant or a strong air blast is necessary when marching aluminum. - Stainless steels require a coolant, which is high in coolant action but low in lubricating qualities. Speeds and Feeds - Proper speeds and feeds will help eliminate chatter and excessive heating of the tool, - Refer to the chart below for suggested speeds and feeds for various materials - Speed ranges are dependent on the machinablility of the material - For slotting applications the speed of the cutter should be reduced 2-3% - Long flute length tools reduce the feed per tooth 5% and speed 2% - Roughing end mills should increase feed per tooth 5%-1% - Depths of cut are not to exceed 1-1/2 times the cutter diameter. - As radial and axial depth of cut increase, chip load should decrease. E.