Applied mechanics in grinding—IV. The mechanism of grinding induced phase transformation

One of the most important problems in high precision grinding is the optimisation of the surface residual stress distribution of ground components. It has been realised that the heat generated in the grinding zone plays a central role in the phase transformation of workmaterials that would alter the...

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Bibliographic Details
Published in:International journal of machine tools & manufacture 1995-10, Vol.35 (10), p.1397-1409
Main Authors: Zhang, Liangchi, Mahdi, Mofid
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Mechanical engineering. Machine design
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Summary:One of the most important problems in high precision grinding is the optimisation of the surface residual stress distribution of ground components. It has been realised that the heat generated in the grinding zone plays a central role in the phase transformation of workmaterials that would alter the residual stress formation. The purpose of this paper was to reveal the mechanism of phase transformation of workmaterials induced by grinding. The finite element method was used to simulate the grinding processes. The heat source generated during grinding was considered as a moving heat flux with a triangular profile. Effects of table speed, heat flux distribution, thermal properties of workmaterials and convective features of coolant were discussed in detail. It was found that an optimal combination of grinding conditions could minimise the depth of phase transformation. The results of this paper also offered essential information for the mechanism exploration of residual stresses in ground components.
ISSN:0890-6955
1879-2170
DOI:10.1016/0890-6955(95)93590-3