Intelligent CAM System for Manufacturing of Die/Mold
Hirotoshi Ohtsuka (Oita Industrial Research Institute)
Yoshiaki Kakino (Kyoto University)
Iwao Yamaji (Kyoto University)
Atsushi Matsubara (Kyoto University)
Soichi Ibaraki (Kyoto University)
Heisaburo Nakagawa (The University of Shiga Prefecture)
Susumu Nishida (Manufacturing Technology Institute, Inc.)
Abstract
An intelligent CAM system for manufacturing of die/mold has
been developed by DBM Research Consortium. This system allows
even inexperienced operators to successfully apply the method of
direct endmilling of hardened steel using (Al,Ti)N-coated
micro-grain carbide cutters for pre-finish cutting processes of
die/mold. This system supports process design for rough and
intermediate-rough cutting, decision of cutting conditions, and tool
life estimation. Fixed cycles such as spiral, trochoid and corner
machining are fully utilized in the proposed CAM system along
with a feed rate adaptation strategy for constant cutting forces.
They are applied mainly for removing critical regions in the tool
path pattern. Those regions are characterized by an excessive
cutting engagement and excessive cutting force. The intelligent
CAM system was verified experimentally for rough and
intermediate-rough machining in the case of manufacturing a
cavity-type mold. The system achieved good results with regard to
productivity and costs.
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