Comparative Analysis the Stainless Steel Surface Structure on Fine-Blanking with Negative Clearance and Common Blanking


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The stainless steels are used more and more in blanking process. To further enhance the quality of blanking fracture surface, this paper made the related experiments of fine-blanking with negative clearance in stainless steel. Through the comparison analysis between the fine-blanking microstructure and common blanking one with stainless steel, the result points out that the fine-blanking with negative clearance inhibit the warping in common blanking, make the work-hardening of material fracture surface improves, and which can have a more positive effect for the fine-blanking with negative clearance. Meanwhile, the work-hardening capacity of two blanking methods was different, and it can enhance the punching section entire strength commendably by fine blanking with negative clearance.



Edited by:

Mohamed Othman




H. Du et al., "Comparative Analysis the Stainless Steel Surface Structure on Fine-Blanking with Negative Clearance and Common Blanking", Applied Mechanics and Materials, Vols. 229-231, pp. 105-108, 2012

Online since:

November 2012





[1] Y.M. Huang, K.H. Chien. Influence of the punch profile on the limitation of formability in the hole-flanging process [J]. Journal of Materials Processing Technology, 2001, 113: 720-724.


[2] F. Ozturk, D. Lee. Analysis of Forming Limit s U2 sings Ductile Fracture Criteria [J]. Journal of Materials Processing Technology, 2004, 147 (3): 397-404.


[3] N. Hatanaka, K. Yamaguchi, N. Takakura. Finite element simulation of the shearing mechanism in the blanking of sheet metal[J]. Journal of Materials Processing Technology, 2003, 139: 64-70.


[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.


[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.


[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.