FIELD: process engineering.
SUBSTANCE: invention relates to stamping and can be used for drawing of boxes with various configuration in plan. Drawing of box wall main section over height from blank end is combined with incomplete flanging of additional section over box wall height from blank central part adjoining premade bore. This allows increasing box maximum height to blank failure as compared with box drawing without incomplete flanging.
EFFECT: accurate sizes, reduced number of rejects.
2 dwg
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