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ZHANG Taohong
Information Engineering School,
University of Science and Technology Beijing,
Beijing 100083, China
YU Gang
WANG Jianlun
Institute of Mechanics,
Chinese Academy of Sciences,
Beijing 100080, China
LIU Xiangyang
Department of Precision Instrument
and Mechanology,
Tsinghua University,
Beijing 100084, China |
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VIRTUAL
PROCESSING OF LASER
SURFACE HARDENING ON
AUTOBODY DIES*
Abstract:
A new method of collision-free path plan integrated in virtual processing is developed to improve the efficiency of laser surface hardening on dies. The path plan is based on the premise of no collision and the optimization object is the shortest path. The optimization model of collision-free path is built from traveling salesman problem (TSP). Collision-free path between two machining points is calculated in configuration space (C-Space). Ant colony optimization (ACO) algorithm is applied to TSP of all the machining points to find the shortest path, which is simulated in virtual environment set up by IGRIP software. Virtual machining time, no-collision report, etc, are put out after the simulation. An example on autobody die is processed in the virtual platform, the simulation results display that ACO has perfect optimization effect, and the method of virtual processing with integration of collision-free optimal path is practical.
Key words:
Laser surface transformation hardening Virtual processing Key words: Traveling salesman problem(TSP) Ant colony optimization(ACO)
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