The lapping place of lower part of the upper section of the automobile luggage outer plate and the perfoliate light was wrinkled when side sizing.The traditional stamping process ad-opted five processes to form it,new process used four processes to complete.The problem place was side trimming completely in the second process.The first side sizing used the step that pre-vented the smooth flow of materials to avoid wrinkling during the first side sizing.The forming quality of the final part was guaranteed by adding wrinkle-absorbing molding and eliminating in-dent during the second side flanging.
维普
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