A Study on the Die Life Extension and Blank Accuracy Improvement of Progressive Die for Nail Clippers Stamping

Abstract

This paper is about the technology support necessary to modify the beauty care apparatus from Three Seven Corp., which has received good recognition from foreign markets but not in the domestic market since its nail clipper’s shearing face area was not constant at both sides, its angle of break was large, and its surface was rough, thereby rendering it less than a top level product. For the resolution of the issues, technical support for the tool was performed through the barrel process, performed for 24 hours after the tool received heat treatment. The Tool and Heat Treatment Technology Support Business Unit of Kongju National University helped in improving the tool’s life by 1.3 times and its die maintenance and repair cycle by 2.5 times, increasing sales by 20% and the production volume by more than 20%. Meanwhile, the defect rate has remarkably reduced from 5% to 0.1% as of this period.