期刊
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
卷 67, 期 9-12, 页码 2837-2844出版社
SPRINGER LONDON LTD
DOI: 10.1007/s00170-012-4696-9
关键词
Tool path; Numerical simulation; Intermediate surface; Incremental forming; Hydraulic bulging
资金
- National Natural Science Foundation of China [50905056, 51205116]
- Scientific Research Foundation for Ph.D. by Hubei University of Automotive Technology [BK2009-16]
This paper discusses the strategy of incremental forming and presents a novel forming strategy for tool path generation. To equalize the strain distribution of sheet metal and improve the forming limit, multistage forming is made to reference a hydraulic bulging forming. Under the liquid pressure, a plate sheet gradually approaches the final shape. A hydraulic bulging numerical simulation is used to obtain a series of intermediate surfaces. Then, CNC codes can be generated in CAM software based on the surfaces. The codes are the tool spatial feed paths for single-point incremental sheet metal forming. The paper focuses on the feasibility investigation, and the experiment proved it. The behaviors of forming and the distribution of thickness are also discussed and concluded that the forming limit of the sheet can be improved by imitating the approach between intermediate surfaces.
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