An Experimental Study of V-Ring Position on the Die Roll Height in the Fine Blanking of Special Part with Corner Shapes

Abstract:

In this paper, the relation between die roll height and V-ring position of a fine blanking tool was studied by experimenting on a special part with various corner shapes. Three guide plate inserts with different V-ring positions and a die insert with constant die chamfer were machined, and a fine blanking tool was manufactured for the fine blanking experiments. Three experiments were conducted on a 650-ton fine blanking press. Each die roll height was measured and analyzed. We found the tendency of the die roll heights on the corner shapes of fine blanked parts to increase with increasing the distance between the V-ring position and the contour of the special part, and to decrease with increasing corner radius and angle. These results can be used to minimize the die roll height of fine blanking parts with corner shapes when designing the V-ring of a fine blanking tool.

• Periodical: Applied Mechanics and Materials (Volumes 184-185)
• Pages: 49-54
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.184-185.49
• Online since: June 2012
• Authors: Jong Deok Kim, Young Moo Heo
• Keywords: Die Insert, Die Roll Height, Fine Blanking, Guide Plate Insert, V-Ring

References

[1] Taylan Altan, Metal Forming Handbook/Shuler GmbH, Springer-Verlag, Berlin Heidelberg New York, 1998, Chapter 4.

[2] K. Lange, F. Birzer, P. Hoefel, A. Muhoty, H. Singer, Cold forming and Fineblanking, Edelstahlwerke Buderus AG, Feintool AG Lyss, Hoesch Hohenlimburg GmbH, Kaltwaltzwerk Brockhaus GmbH, 1997, pp.154-165.

[3] W. Blatter, Introduction into the technology fine blanking tools, Incheon, KAITECH, 1991, pp.62-86.

[4] Franz Birzer, Forming and fineblanking/cost-effective manufacture of accurate sheetmetal parts, verlag moderne Indusrie, Landesberg/Lech, 1997, pp.7-39.

[5] Jong-Deok Kim, Heung-Kyu Kim, Young-Moo Heo, Sung-Ho Chang, A study on the effect of V-ring position on the die roll height in fine blanking for special automobile seat recliner gear, Advanced Materials Research, Vols. 383-390, 2012, pp.7122-7127.

DOI: 10.4028/www.scientific.net/amr.383-390.7122