PROGRESSIVE PRESS PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To smoothly apply press processing to a plurality of strip-like boards in a mutually overlapping state.SOLUTION: A progressive press processing method comprises a conveyance step of sequentially conveying a plurality of strip-shaped plates to a plurality of processing stages in a state of being overlapped with each other, a pressing step of sequentially pressing the plurality of strip-shaped plates with the plurality of processing stages, and a caulking step of caulking the plurality of strip-like plates at the upstream side in the conveying direction compared to a case where the plurality of strip-shaped plates among the plurality of processing stages are pressed first.SELECTED DRAWING: Figure 3