Virtual Five-Axis Milling of Free-Form Surface-Part II: Feed Optimization

Abstract:

This paper presents process optimization for the five-axis milling based on the mechanics model explained in Part I. The process is optimized by varying the feed as the tool-workpiece engagements. The linear and angular feedrates are optimized by sequential quadratic programming. Sharp feedrate changes may result in undesired feed-marks on the finished surface. The adopted step is to update the the original CL file with optimized and filtered feedrate commands. The five-axis milling process is simulated in a virtual enviroment, and the resulting feedrate outputs are stored at each position along the tool path. The new feedrate profiles are shown to considerably reduce the machining time while avoiding process faults.

• Periodical: Applied Mechanics and Materials (Volumes 29-32)
• Pages: 430-435
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.29-32.430
• Online since: August 2010
• Authors: Li Qiang Zhang, Ye Cui Yan
• Keywords: Feedrate Scheduling, Five-Axis, Geometric Simulation, Mechanistic Model

References

[1] Z.Z. Li and D.C. Liu: Journal of Materials Processing Technology Vol. 138(2) (2003), p.513.

[2] B.U. Guzel and I. Lazoglu: International Journal of Machine Tools and Manufacture Vol. 44 (21) (2004), p.21.

[3] L.Q. Zhang: International Journal of Advanced Manufacturing Technology Vol. 40(11) (2009), p.1191.