A METHOD OF MAKING A STAR PERFORMANCES SCHEDULED SPRING DEVICE

摘要

A method of making a star performances scheduled spring device containing matrix and punch. Make workpiece in a strip of spring steel, heat treated by known methods to obtain the residual plastic deformation. The ends of the workpiece cleaning and line symmetry relative widths perform circular cuts. Blanks lay between matrix and punch and set in grooved guides enclosure for making a star performance composite springs. With the movement of the punch and matrix in grooved guides enclosure forming speech prepared for star-shaped springs. Then punch with matrix returned to its original position and dismantle the prepared statement prepared for the star-shaped springs, which thermally treated by known methods for acquiring elastic properties.