Optimum Path Generation for 5-Axis Control Machining
Considering Tool Attitude Change
Koichi MORISHIGE, Hiroki WAKAYAMA and Yoshimi TAKEUCHI
Proceedings of The 35rd CIRP International Seminar
on Manufacturing Systems, pp.255-259
(Saarbrucken, Germany, June 3-5, 2003)
The 5-axis control machining has a lot of advantages in the machining
of complex shapes such as impeller and propeller, also in the rational
use of cutting tools, and so on. However, the wide use of 5-axis control
machining is very difficult because CAM software which can calculate
the cutter location data while considering the tool interference problem
is nonexistence. We have proposed the tool path generation
method for 5-axis control machining using an original configuration space,
and shown that a smooth and interference-free tool path can be generated
based on the selected machining strategy. However, the conventional method
generates cutter locations in each path by interpolating the calculated
local tool attitudes at several cutting points. Therefore, generated paths
were not ideal when evaluating the entire path due to a large amount of
redundant movements. In this study, the initial cutter location and
attitudes after interference avoidance are decided while referring to
all of the configuration space information at several cutting points.
The devised method can generate the best cutter location with the least
amount of the change in tool attitude.
Finally, the method is implemented to the original CAM software for 5-axis
control machining. As a result, it is experimentally found that the system
enables the optimum 5-axis control machining.
http://www.ims.mce.uec.ac.jp/
2003, by K.Morishige