Study on Cutter Radius Compensation Methods for 5-Axis CNC Machining

Abstract:

The numerical control (NC) program files need re-generating if there is any tool dimension change or tool wear for multi-axis machining. If the tool is replaced to adapt this change there will be increased cost. To solute this problem, 3D cutter radius compensation method for 5-axis computer numerical control (CNC) machining is deeply researched. Taking five axes linkage machine tools of X, Y, Z, B, C form with rotary tables B and C as an example, coordinate transformation matrix (CTM) and the cutter compensation vector for 3D cutter radius compensation are derived. The discrimination methods for path joint pattern (PJP) are given. A controller with 3D cutter radius compensation function for 5-axis linkage CNC machine tools is developed based on this method. The controller is allocated to a 5-axis milling machine tool and experiments are done. The proposed algorithm is demonstrated using a practical example.

• Periodical: Materials Science Forum (Volumes 628-629)
• Pages: 347-352
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.628-629.347
• Online since: August 2009
• Authors: Yuan Liu, Yong Zhang Wang, Hong Ya Fu, Zhen Yu Han
• Keywords: 5-Axis Machining, Compensation Vector, Coordinate Transformation, Cutter Radius Compensation, Path Joint Pattern

References

[1] FANUC: Programming Manual for FA�UC series 15-MA (Japan 1994).

[2] Cincinnati Milacron: Programming Manual for Cincinnati Milacron Acramatic 950PC/MC Rel 2. 0 Computer �umerical Control (USA 1990).

[3] Q. Liang and Y.Z. Wang: Modular Machine Tool & Automatic Manufacturing Technique Vol. 8(4) (2007), p.14.

[4] Z.H. She and Z.T. Chen: Materials Science Forum Vol. 10(5) (2006), p.571.

[5] Z.Y. Yao, S.K. Gipta and D. Nau: Computer-Aided Design Vol. 35(9) (2003), p.825.

[6] A.L. Wang and J.T. Zhang: Modern C�C Theory and its Control System (National Defence Industry Press, China 2002).