Study on Grinding Crack of Premium Thread Gauge Material 9Mn2V

Abstract:

This paper investigates the surface integrity of premium thread gauge material 9Mn2V in reciprocating surface grinding using SG abrasive, which includes metallographic structure for grinding crack, specific grinding energy and surface residual stress. The specific grinding energy and the surface residual stress can be reduced after the workpiece gets tempered, so small grinding depth can lead to the generation of cracks when the workpiece is not tempered. Otherwise, the depth of heat affected zone increases with the increase of grinding depth, but not increases proportionally. After 9Mn2V is tempered, the occurrence of grinding burn and grinding cracks can be improved.

• Periodical: Key Engineering Materials (Volumes 589-590)
• Pages: 252-257
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.589-590.252
• Online since: October 2013
• Authors: Ming Chen, Da Peng Dong, Guo Qiang Guo, Qing Long An
• Keywords: 9Mn2V, Grinding Crack, Reciprocating Grinding, Tempering

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