1990 Fiscal Year Final Research Report Summary
A Study of Geometra Machining Simulator
| Project/Area Number |
63550092
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
機械工作
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| Research Institution | Hokkaido University |
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Principal Investigator |
KISHINAMI T. Hokkaido University, Precision Engg. Professor, 工学部, 教授 (30001796)
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| Co-Investigator(Kenkyū-buntansha) |
TANAKA F. Hokkaido University, Precision Engg. Research Assistant, 工学部, 助手 (30207138)
KANAI S. Tokyo Institute of Technology, Mechanical Engg. Ass. Professor, 工学部, 助教授 (90194878)
SAITO K. Hokkaido University, Precision Engg. Professor, 工学部, 教授 (40001169)
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| Project Period (FY) |
1988 – 1989
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| Keywords | Machining Simulation / Voxel Representation / CAD / CAM / Cutter collision / Cutter path verification / Machining operation / Set operation of Solid model / Offset operation |
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| Research Abstract |
The machining simulation technique is very important for computer aided manufacturing system and NC data verification. If we can forecast the machining phenomena, for example, cutter collision, cutter removal shape, removed volume and cutting force by using simulation techniques, a more high level computer controlled machining system can be realized. Some research on machining simulation based on conventional geometric modeling techniques such as CSG or Breps have already been done.
However, these approaches were time consuming and complex because of the massive set operations between workpiece and cutting tool. Difficulty in defining cutter swept volume, and restricted within their specific application. To solve these problems, we introduce the voxel representation of geometric model and logical set operation on voxel space. The machining simulation technique based on the voxel representation of geometric models makes it possible to recognize not only cutter collision but also various status among cutting tool, workpiece and fixturing device, by the uniform data representation and simple logical bitwise operations.
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Research Products
(4 results)
