Study and Analysis the Facture Mechanism for Fine-Blanking with Negative Clearance on 60Mn

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In order to improve the punching process, further enhance the blanking section quality. This paper studied the common blanking of 60Mn and the fine blanking with negative clearance of 60Mn blanking work piece metallographic structure by using scanning electron microscope. The results show that the fine blanking with negative clearance process can increase the work-hardening degree and further thin the punching surface tissue, inhibit the crack, and make the blanking surface smooth. The tensile and tear result in the generation of cracks and burrs, and the extrusion forming of fine blanking with negative clearance inhibit the generation of cracks, and eliminate the conditions of the burrs. As the extrusion process, the degree of work hardening in fine blanking with negative clearance is higher than the common blanking, the organizations are more closed.

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Periodical:

Edited by:

Mohamed Othman

Pages:

91-94

Citation:

Z.M. Zhang et al., "Study and Analysis the Facture Mechanism for Fine-Blanking with Negative Clearance on 60Mn", Applied Mechanics and Materials, Vols. 229-231, pp. 91-94, 2012

Online since:

November 2012

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$38.00

[1] Li Jianhua, Li Xuexin. Instantaneous Clearance of Ordinary Punching and Precise Punching without Burr and Its Influence on Punching Quality[J]. Tool Engineering, 2002. 9: 26-28.

[2] Li Jianhua, Fan Weifu, Du Hong. Study on No Burrs Punching Instantaneous Clearance and Plastic State [J]. Chinese Mechanical Engineering, 2002, 13(12): 1065-1066.

[3] J.H. Li, W.F. Fan. Plastic flow and finite element simulation of plastic fine blanking [J]. Materials Science & Engineering A, 2008, 499 (1): 200-203.

DOI: https://doi.org/10.1016/j.msea.2007.11.141

[4] Y. B. Bao, T. Wierzbicki. A Comparative Study on Various Ductile Crack Formation Criteria [J]. Journal of Engineering Materials and Technology, 2004, 126 (3): 314-324.

DOI: https://doi.org/10.1115/1.1755244

[5] H. Du, S.M. Ding. The contrast research of the finite element simulation for ordinary and fine blanking with negative clearance[J]. Materials Science Forum, Vols. 575-578 (2009), pp.316-321.

DOI: https://doi.org/10.4028/www.scientific.net/msf.575-578.316

[6] J.H. Li, W.F. Fan, Z.M. Zhang. Study on microstructure character in the deformable regions of AISI-1045 steel fine blanking with negative clearance [J]. Materials Science Forum, Vols. 628-629 (2009), pp.541-546.

DOI: https://doi.org/10.4028/www.scientific.net/msf.628-629.541