Real-time generation and control of cutter path for 5-axis CNC machining

This paper presents a new approach to real-time generation and control of the cutter path for 5-axis machining applications. The cutter path generation method comprises real-time algorithms for cutter-contact path interpolation, cutter offsetting, and coordinate conversion. In addition, a global feedback loop is closed by the CNC interpolator so as to augment the controlled accuracy in practical cutter path generation. An error compensation algorithm and a feedrate adaptation algorithm for the control loop are developed, respectively.

[1]  Karl Johan Åström,et al.  Computer-Controlled Systems: Theory and Design , 1984 .

[2]  Yoram Koren,et al.  Variable-Gain Cross-Coupling Controller for Contouring , 1991 .

[3]  Chih-Ching Lo,et al.  Feedback Interpolators for CNC Machine Tools , 1997 .

[4]  Xiong-Wei Liu,et al.  Five-axis NC cylindrical milling of sculptured surfaces , 1995, Comput. Aided Des..

[5]  Yuan-Shin Lee,et al.  Admissible tool orientation control of gouging avoidance for 5-axis complex surface machining , 1997, Comput. Aided Des..

[6]  Yoram Koren,et al.  Adaptive Control Systems for Machining , 1988, 1988 American Control Conference.

[7]  Gershon Elber,et al.  Freeform surface region optimization for 3-axis and 5-axis milling , 1995, Comput. Aided Des..

[8]  Yuan-Shin Lee,et al.  2-Phase approach to global tool interference avoidance in 5-axis machining , 1995, Comput. Aided Des..

[9]  Desmond J. Walton,et al.  Curve fitting with arc splines for NC toolpath generation , 1994, Comput. Aided Des..

[10]  Jui-Jen Chou,et al.  On the Generation of Coordinated Motion of Five-Axis CNC/CMM Machines , 1992 .

[11]  J. W. Park,et al.  Cutter-location data optimization in 5-axis surface machining , 1993, Comput. Aided Des..

[12]  G. W. Vickers,et al.  Ball-Mills Versus End-Mills for Curved Surface Machining , 1989 .

[13]  Chih-Ching Lo,et al.  Control Scheme for a Five-Axis Machine Tool Based on Coordinate Transformation , 1997 .

[14]  Robert B. Jerard,et al.  5-axis Machining of Sculptured Surfaces with a Flat-end Cutter , 1994, Comput. Aided Des..

[15]  Gershon Elber,et al.  5-Axis Freeform Surface Milling Using Piecewise Ruled Surface Approximation , 1997 .

[16]  Dimitris Kiritsis,et al.  High precision interpolation algorithm for 3D parametric curve generation , 1994, Comput. Aided Des..

[17]  Dr. Hans Hellendoorn,et al.  An Introduction to Fuzzy Control , 1996, Springer Berlin Heidelberg.

[18]  K. Marciniak,et al.  Influence of surface shape in admissible tool positions in 5-axis face milling , 1987 .

[19]  C. N. Chu,et al.  Effect of cutter mark on surface roughness and scallop height in sculptured surface machining , 1994, Comput. Aided Des..

[20]  Min-Yang Yang,et al.  Five-axis CNC milling for effective machining of sculptured surfaces , 1993 .

[21]  Daniel C. H. Yang,et al.  Parametric interpolator versus linear interpolator for precision CNC machining , 1994, Comput. Aided Des..

[22]  Yoram Koren,et al.  Computer control of manufacturing systems , 1983 .

[23]  Moshe Shpitalni,et al.  Realtime curve interpolators , 1994, Comput. Aided Des..

[24]  Gershon Elber,et al.  Accessibility in 5-axis milling environment , 1994, Comput. Aided Des..