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| Forming Technology Research of Complex Curved Surface Duct |
| XU Nian, NIE Ziyang |
| (AECC South Industry Co., Ltd., Zhuzhou 412002, China) |
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Abstract Respectively from the three aspects,such as :the springback amount and size control, defect characteristics
and stamping mould repair, pre-press surface protection .Study of complex curved surface stamping control, puts forward a
method of complex curved surface stamping control . In addition, a correction method for improving the defects and sizes
of small diameter convex flange is presented. In this paper, the general rules of "forming control of complex curved surface
and small diameter flange sheet metal forming control" are analyzed, and the foundation for the forming research of the following
type parts is laid.
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2017, 
