| 摘要 |
PURPOSE: A multiplex coiling method is provided to avoid a defect generated by a burr and the decrease of an equipment operation rate in a press work, to save a material cost and to reduce a noise. CONSTITUTION: A position hole(18) is made up in the center and edge of a coil(1). Evenness is formed on the coil by multiplexing right-binding the coil into 70 to 30% of coil thickness. At the same time, the coil is flattened by multiplex reverse-coiling. A scrap(3) inside the coil is taken off by being pushed, and a blank material(2) is taken off from the coil by being pushed to the outside from an inner part.
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