블랭킹 금형의 펀치 전단 각 변화에 따른 변형 특성 연구
A Study on the Deformation Characteristics of Blanking Mold by the Change of Punch Shear Angle
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초록
Blanking processing is one of the shear processing method in which the cut part becomes a product and piercing processing is a press molding process in which the cut part is discarded as a scrap. The shear angle of the punch used for blanking is determined by conditions such as the characteristics of the shear material, shear thickness and shear length. The shear angle of a punch is an important factor in determining the size of the shear load, the life of the shear punch, the deformation of the shear product and the quality of burrs In this study, blanking punches applied with four types of shear angles (i.e., 0°, 0°23", 0°46", 0°69") to the blanking punches of bracket products used in practical work were manufactured and tested. In the blanking experiment, the remaining variables except for the shear angle were the same. Experiments show that the product has the least amount of deformation in blanking punches with a shear angle equal to the material thickness, i.e., 0°46"..
Abstract
Blanking processing is one of the shear processing method in which the cut part becomes a product and piercing processing is a press molding process in which the cut part is discarded as a scrap. The shear angle of the punch used for blanking is determined by conditions such as the characteristics of the shear material, shear thickness and shear length. The shear angle of a punch is an important factor in determining the size of the shear load, the life of the shear punch, the deformation of the shear product and the quality of burrs In this study, blanking punches applied with four types of shear angles (i.e., 0°, 0°23", 0°46", 0°69") to the blanking punches of bracket products used in practical work were manufactured and tested. In the blanking experiment, the remaining variables except for the shear angle were the same. Experiments show that the product has the least amount of deformation in blanking punches with a shear angle equal to the material thickness, i.e., 0°46"..
참고문헌 (6)
- Ho-gwon Song, "Study on the Optimization of Spring Layout for Blanking Dies", master, pp.2014
- Maeda T., "Experimental Investigation on Fine Blanking", Sci. Paper I.P.C.R, 62(2), pp.65~80 (1968)
- 유종근, "트리밍펀치 형상과 전단 각에 따른 전단하중 특성에 관한 연구", 소성∙가공, 24(2), pp.77~82 (2015), 한국소성∙가공학회
- On Formability Limitations in Stamping Involving Sheared Edge Stretching, "A. Konieczny", SAE, ~, pp.SAE Technical Paper, 2007-01-0340
- Ho-gwon Song, "Study on the Optimization of Spring Layout for Blanking Dies", master, pp.2014
- Panyeol Yoo, "A Study on V-indenter Ring’s Effect to Shearing Surface in Fine Blanking", master, pp.2010