Surface Grinding Hardness Layer Thickness Prediction Under Pre-stress Loading Condition

被引：0
|
作者：
Ma L. [1 ,2 ]
Dong L. [3 ]
Zhang X.-M. [1 ]
Xiu S.-C. [1 ]
机构：
[1] School of Mechanical Engineering & Automation, Northeastern University, Shenyang
[2] Department of Mechanical Engineering, Xinjiang Institute of Engineering, Urumqi
[3] China FAW Corporation R&D Center, Changchun
来源：
Xiu, Shi-Chao (maliang7653@sina.com) | 2017年 / Northeast University卷 / 38期
关键词：
Acicular martensite; Feed rate; Grinding depth; Pre-stressed hardening grinding; Thermal transformation; Work hardening;
D O I：
10.3969/j.issn.1005-3026.2017.03.019
中图分类号：
学科分类号：
摘要：
To evaluate the effect of pre-stress parameter on hardening-layer thickness during grinding process, surface grinding hardening process was applied to unquenched 45# steel workpiece at different pre-stress (0~100 MPa) conditions. In a sequence of “thermal-force” loading order, grinding hardening process was simulated using the ANSYS software. Furthermore, how thermal transformation and work hardening influence layer thickness and thickness distribution at different location from grinding wheel's entry point were discussed. Thickness simulation data shows that the calculation error is less than 6%, indicating that the results are in good agreement with the experimental data. Meanwhile, the pre-stress loading leads to the slight reduction of thickness (<10%) on the surface grinding hardening-layer, which proves that loading pre-stress provokes re-distribution of microstructure, suppresses diffusion of quenched carbide, but probably is not a beneficial factor to increase hardening layer thickness. © 2017, Editorial Department of Journal of Northeastern University. All right reserved.
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页码：395 / 399
页数：4
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