Modeling of cutting geometry and forces for 5-axis sculptured surface machining
| Autor: | Robert B. Jerard, Jeffrey G. Hemmett, Barry K. Fussell |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Surface (mathematics)
Engineering business.product_category Cutting tool business.industry Mechanical engineering Geometry computer.software_genre Computer Graphics and Computer-Aided Design Industrial and Manufacturing Engineering Computer Science Applications Machine tool Intersection Machining Computer Aided Design business Contact area computer Envelope (motion) |
| Zdroj: | Computer-Aided Design. 35:333-346 |
| ISSN: | 0010-4485 |
| DOI: | 10.1016/s0010-4485(02)00055-6 |
| Popis: | 5-Axis sculptured surface machining is simulated using discrete geometric models of the tool and workpiece to determine the tool contact area, and a discrete mechanistic model to estimate the cutting forces. An extended Z-buffer model represents the workpiece, while a discrete axial slice model represents the cutting tool. Determination of the contact area for a given tool move requires a swept envelope (SWE) of the tool path. The SWE is used to find the intersections of the tool envelope with Z-buffer elements (ZDVs) representing the workpiece. A 3-axis approximation of the 5-axis tool movement is used to simplify the calculations while maintaining a desired level of accuracy. The intersection of the SWE with each ZDV yields segments which are used to find the contact area between the cutter and the workpiece for a given tool path. The contact area is subsequently used with the discrete force model to calculate the vector cutting force acting on the tool. |
| Databáze: | OpenAIRE |
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