RENAULT J77 Modus Wing.

Transcription

1 RENAULT J77 Modus Wing

2 RENAULT J77 Modus Wing Material : GEP Noryl GTX VP7146 Mould : - Ampcoloy 940 -P20 Melt temperature : 305 C Inlet water temperature : 105 C Total water flow rate : 7 m 3 /h Injection time : 3.8 " Packing time : 6 " Cooling time : 13 " Open mould time : 32 " During this presentation, keep in mind that this tool was already optimized for optimal production with a P20 steel.

3 RENAULT J77 Modus Wing Steel Ampcoloy 940 Density [g/cm3] Specific heat [J/(kg.K)] Thermal conductivity [W/(m.K)]

4 RENAULT J77 Modus Wing Steel 940

5 Point of view Mold temperature or Cooling Quality and Efficiency

6 Average mold wall temperature during filling Ampco allows an average temperature more or less than 7 C. Therefore productivity increase thank to a more important heat extraction Ampco : (6.8 C) P20 : (20.5 C) Steel to C to C 940

7 Average mold wall temperature during filling (scaled result) Steel 940 Ampco allows homogenous temperature on whole mold wall temperature. Ampco allows the reduction of local differential stresses.

8 Mold wall temperature (during cycle) Steel 940

9 Temperature difference MP / FP (scaled result) Ampco allows the reduction of the mold wall difference between fixed part and mobile part. (from 18.5 to 4.8 C) Therefore, Ampco allows the reduction of the warpage of the part in the case of unfilled material. Steel 940

10 Statistical distribution of the temperature Mobile side Mobile side Steel 940 Ampco allows the reduction of the hot spot number and the smoothing of the wall temperature. Even in the case of a mobile side with a mobile parts hard to cool. In addition, the average wall temperature is less.

11 Statistical distribution of the temperature Fixed side Steel Fixed side 940 Ampco allows the reduction of the hot spot number and the smoothing of the wall temperature. Even in the case of a mobile side with a mobile parts hard to cool. In addition, the average wall temperature is less.

12 Point of view Productivity improvement

13 Mold wall stabilization Steel 940 Ampco allows the reduction of the mold wall stabilization time the time to start production is reduced the time to switch between 2 productions is reduced the quantity of not-in conformity parts produced is reduced

14 Theoretical cycle time Steel 940 Full steel mould : 15.03" Full Ampco mould : 13.83" Ampco allow the reduction of the global cycle time of 1.2", which represents a productivity gain of 8% for an optimized mold

15 Mold wall temperature / cooling time Steel 940

16 Point of view Quality improvement

17 Displacement Steel 940 Ampco allows to reduce deformation problems due to the mold regulation. In this case, the maximal deformation decreases from 64 mm to 54 mm. This represents a 15.6% reduction.

18 Thermal quality Summary (for a P20 optimized mould) Hot spot reduction of 7 C Smoothing of wall temperature Ampco range : to C (6.8 C) during filling P20 range: to C (20.5 C) during filling MP / FP difference reduction (from 18.5 for P20 to 4.8 C for Ampco) Quantifiable profits Production launching reduction Cycle time reduction of 8% Part quality improvement : Deformation reduction of 15%

19 Consulting proposition Simulation on prospect cases Quantification of Ampco contribution vs. Steel mould Specific regulation optimization for Ampco number of channel distance between channel and cavity distance between channels 3D simulation of Ampco contribution