Numerical and experimental investigation on temperature field during belt grinding considering elastic contact

Ying Liu; Jiayu Xu; Kun Zhou; Shaochuan Li; Yun Huang; Guijian Xiao

Case Studies in Thermal Engineering (Dec 2022)

Numerical and experimental investigation on temperature field during belt grinding considering elastic contact

Ying Liu,
Jiayu Xu,
Kun Zhou,
Shaochuan Li,
Yun Huang,
Guijian Xiao

Affiliations

Ying Liu: College of Mechanical and Vehicle Engineering, Chongqing University, No. 174, Shazhengjie Street, Shapingba, Chongqing, 400044, China
Jiayu Xu: College of Mechanical and Vehicle Engineering, Chongqing University, No. 174, Shazhengjie Street, Shapingba, Chongqing, 400044, China
Kun Zhou: College of Mechanical and Vehicle Engineering, Chongqing University, No. 174, Shazhengjie Street, Shapingba, Chongqing, 400044, China; State Key Laboratory of Mechanical Transmissions, Chongqing University, No. 174, Shazhengjie Street, Shapingba, Chongqing, 400044, China; Corresponding author. College of Mechanical and Vehicle Engineering, Chongqing University, No. 174, Shazhengjie street, Shapingba, Chongqing, 400044, China.
Shaochuan Li: College of Mechanical and Vehicle Engineering, Chongqing University, No. 174, Shazhengjie Street, Shapingba, Chongqing, 400044, China
Yun Huang: College of Mechanical and Vehicle Engineering, Chongqing University, No. 174, Shazhengjie Street, Shapingba, Chongqing, 400044, China; State Key Laboratory of Mechanical Transmissions, Chongqing University, No. 174, Shazhengjie Street, Shapingba, Chongqing, 400044, China
Guijian Xiao: College of Mechanical and Vehicle Engineering, Chongqing University, No. 174, Shazhengjie Street, Shapingba, Chongqing, 400044, China; State Key Laboratory of Mechanical Transmissions, Chongqing University, No. 174, Shazhengjie Street, Shapingba, Chongqing, 400044, China; Corresponding author. College of Mechanical and Vehicle Engineering, Chongqing University, No. 174, Shazhengjie street, Shapingba, Chongqing, 400044, China.

Journal volume & issue: Vol. 40
p. 102555

Abstract

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Belt grinding is an important method for precision machining of complex curved components own to its elastic contact characteristics. However, the grinding heat is easy to accumulate in workpieces and results in thermal damages when grinding narrow curved surfaces, such as air inlet and exhaust sides of aeroengine blade. This study developed a numerical thermal model during belt grinding based on a moving parabolic heat source method considering elastic contact, grinding zone shape and nonuniformity of heat source. It is revealed that the maximum grinding temperature of 40 HA contact wheel is decreased by 33.1% compared with that of 90 HA contact wheel, and grinding temperature of curved surfaces is unevenly distributed in the elliptic-shape grinding zone. Besides, as the curvature radius of workpiece increases, the grinding temperature is decreased, and the maximum temperature of transverse grinding is decreased by 39% compared with that of longitudinal grinding. Systematic temperature measurements of Inconel 718 belt grinding show that the simulated results agree well with the experimental results, and the average prediction error is 7.68%. The research can provide an important theoretical basis for the high-performance belt grinding of complex curved parts.

Published in Case Studies in Thermal Engineering

ISSN: 2214-157X (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: http://www.journals.elsevier.com/case-studies-in-thermal-engineering/

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