Wrinkling usually happens in the punching process of curved surfacesheet metal.
曲面板件在冲压成形时常常发生起皱现象。
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That main panel needed to look dimensional, so the laminate surfacesheet was mounted to a pan-formed sign, made from a sheet of 4x 10white. 040 aluminum pre-painted sheet.
Mould compensation is an effective way to rectify the springback of complex surfacesheet metal stamping, it needed an accurate springback evaluation to direct modifying die surfaces.