Paper Title:
Study on Forming Mechanism of Surface Hardening in Two-Pass Grinding 40Cr Steel
  Abstract

We had done the two-pass grind-hardening experiment on 40Cr steel using the conventional aluminum grinding wheel on a surface grinder, compared the structure and performance of the hardened layer of one-pass grinding with those of two-pass grinding and analyzed the forming mechanism of two-pass grinding hardened layers. The results show that there are a similar martensite structure and change rules of hardened layer of one-pass grinding and two-pass grinding in spite of the different of initial structures, for martensite has tempered by the action of the creep feed grinding temperature field. The depths of hardened layer, microhardness and wear resistance have further improved, but the maximal compressive residual stress and its influencing depth of hardened layer have decreased. The forming mechanism of the two-pass grinding hardened layer is the same as that of the grinding hardened layer of quenched steel.

  Info
Periodical
Key Engineering Materials (Volumes 304-305)
Edited by
Guangqi Cai, Xipeng Xu and Renke Kang
Pages
588-592
DOI
10.4028/www.scientific.net/KEM.304-305.588
Citation
G. C. Wang, J. D. Liu, H. J. Pei, Z.H. Jia, L. J. Ma, "Study on Forming Mechanism of Surface Hardening in Two-Pass Grinding 40Cr Steel ", Key Engineering Materials, Vols. 304-305, pp. 588-592, 2006
Online since
February 2006
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Price
$32.00
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