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Zhou Liuru
Mo Jianhua
Xiao Xiangzhi
State Key Laboratory of Plastic Forming Simulation and Die &
Mould Technology, Huazhong University of Science
and Technology,
Wuhan 430074, China |
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NC INCREMENTAL SHEET METAL
FORMING PROCESS AND VERTICAL
WALL SQUARE BOX FORMING*
Abstract: The forming principle and deformation analysis of NC incremental sheet metal forming process as well as the process planning, experiment and key process parameters of vertical wall square box forming are presented. Because the deformation of sheet metal only occurs around the tool head and the deformed region is subjected to stretch deformation, the deformed region of sheet metal thins, and surface area increases. Sheet metal forming stepwise is to lead to the whole sheet metal deformation. The forming half-apex angle θ and corner radius R are the main process parameters in NC incremental forming of vertical wall square box. According to sine law, a vertical wall square box can’t be formed by NC incremental sheet metal forming process in a single process, rather, it must be formed in multi processes. Thus, the parallel line type tool path process method is presented to form the vertical wall square box, and the experiment and analysis are made to verify it
Key words:
Sheet metal forming NC incremental forming Dieless forming Vertical wall square box forming
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