Thermal Characterization Study of Double End Face Grinding Powder Metallurgy Stainless Steel 316L

Abstract

Double end face grinding machining is a highly efficient surface grinding technique. And grinding temperature is an important factor affecting the surface quality of workpieces. However, it is difficult to monitor the surface temperature of the workpiece in real time because of the covered contact between the grinding wheel and the upper and lower surfaces of the workpiece during the machining process. This paper aims to conduct a mechanistic analysis and experimental investigation of the machining process to address this challenge. Initially, the paper conducts an analysis of the kinematic mechanism, modal analysis, and the grinding force mechanism specific to the double end face grinding process. Afterwards, the mechanisms leading to the generation of grinding heat and the associated heat transfer mechanisms are explored in depth. The paper then proceeds to solve the instantaneous temperature field during double end face grinding by the finite element method (FEM). Furthermore, the micro and macro profile heights of the machined workpiece surfaces are measured and analyzed. The results show that the machined workpiece surface shows a high center and low edge. This is due to the fact that the temperature at the edge of the workpiece is higher than the center during machining, resulting in more material removal. Through these investigations, the study is able to determine the optimal process parameters for the machining process. This in turn improves machining efficiency and product conformity. And these findings not only guide practical production processes but also provide a foundation for future theoretical research in this area.

Keywords

Double end face grinding / Modal analysis / Grinding force / Temperature field

Author Contributions

Conceptualization, C.S.; Methodology, C.S. and Y.L.; Software, Y.L.; Validation, J.F. and K.L.; Formal Analysis, G.W.; Investigation, X.W.; Resources, C.S.; Data Curation, J.F.; Writing—Original Draft Preparation, Y.L.; Writing—Review & Editing, C.S.; Visualization, Y.L.; Supervision, C.S.; Project Administration, C.S.; Funding Acquisition, C.S.

Ethics Statement

Not applicable.

Informed Consent Statement

Informed consent was obtained from all subjects involved in the study.

Data Availability Statement

No data was used for the research described in the article.

Funding

This research was funded by [National Natural Science Foundation of China] grant number [52105433 and 52175383], [Joint Fund of Provincial Natural Science Foundation] grant number [ZX20240442], [Fundamental Research Funds for the Central Universities] grant number [N2303021] and [Henan Key Laboratory of Superhard Abrasives and Grinding Equipment] grant number [JDKFJJ2022006].

Declaration of Competing Interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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