Paper Title:
Research on the Shrinkage Cavity Defect of the Extruded Boss in Fine Blanking Process
  Abstract

The shrinkage cavity defect of the extruded boss is harmful to the quality of fine blanking workpiece and process. To suppress the shrinkage cavity defect, firstly, the boss extrusion is simulated to analyze main features of metal flow and the causes of the shrinkage cavity defects; secondly, some parameters affecting the material flow, such as the size of die and punch, blank holder force, friction coefficient, sheet thickness and counter force, are studied to figure out their influences on the depth of shrinkage cavities respectively; finally, the process parameters of a special workpiece are selected according to research results above, and experiment verified that the selected parameters can suppress the shrinkage cavity defect pertinently. In the paper, the shrinkage cavity defect is systematically studied for the first time, and this provides the base to design and optimize the extruded boss feature in fine blanking process.

  Info
Periodical
Advanced Materials Research (Volumes 314-316)
Chapter
Materials Processing Technology
Edited by
Jian Gao
Pages
695-702
DOI
10.4028/www.scientific.net/AMR.314-316.695
Citation
J. Lan, Y. Zhang, C. P. Song, L. Hua, "Research on the Shrinkage Cavity Defect of the Extruded Boss in Fine Blanking Process", Advanced Materials Research, Vols. 314-316, pp. 695-702, 2011
Online since
August 2011
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Price
$32.00
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