A Study Of The Die Roll Height Of SHP-1 And SCP-1 Materials In The Fine Blanking Process

• Main Authors: Lee C.K., Kim Y.C.
• Format: Article
• Language: English
• Published: Polish Academy of Sciences 2015-06-01
• Series: Archives of Metallurgy and Materials
• Subjects: Die roll; Fine blanking; SCP-1; Share speed; SHP-1; V-ring
• Online Access: http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0139/amm-2015-0139.xml?format=INT

The height of the die roll, the distance of the V-ring, and the shear rate were varied with the aim of investigating the effects of the applied changes on the fine blanking line in a cold-rolled and a pickled steel sheet, referred to as SCP-1 and SHP-1, respectively. Both materials consisted primarily of a ferrite phase with small amounts of impurities including F, Mn, and Cr. The distance was found to be a very important factor in controlling the shear of the V-ring in the fine blanking process. When the position of the V-ring was set at distances of 1.5 mm and 2 mm, the die roll height increased with increasing shear speeds from 6.4 m/min to 10 and 16 m/min. Analysis of the influence of the shear rate revealed that low rates resulted in the lowest die roll heights since the flow of material was effectively inhibited.