谐波减速器特殊钢材质柔轮的组织和力学性能分析

doi:10.11896/j.issn.1005-023X.2018.16.026

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Abstract Microstructure and mechanical properties of the domestic and foreign special steel flexsplines for harmonic reduction gear were comparatively analyzed by alloys composition, quantitative analysis of microstructure, determination of mechanical properties at room temperature and fracture analysis. The results showed that the difference in composition was in the design of V-Ti-Nb microalloys. Microstructure of the domestic flexspline was coarse, and it had poor stability. Its prior-austenite grain was 1.0-4.0 grade smaller than Japan’s, and the fluctuation of grain size reached 3.0 grade. Strength of the foreign flexspline at different positions was in good agreement, and strength and plasticity of the domestic and foreign flexsplines were basically the same. But mecha-nical properties stability of the domestic was poor. Insufficient cleanliness, Al₂O₃ brittle inclusions with diameter of 3.0-6.0 μm, coarse and uneven structure were the main causes of short life and stability fatigue resistance for the domestic flexspline.

Key words： industrial robot harmonic reduction gear microstructure and properties failure analysis

Published: 18 September 2018

CLC number:

TG142.1

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	Articles by authors
	ZHANG Chaolei
	WEI Yang
	FANG Wen
	MIAO Hongsheng
	BA Xinyu
	LIU Yazheng

Cite this article:

ZHANG Chaolei,WEI Yang,FANG Wen, et al. Microstructure and Mechanical Properties Analysis of the Special Steel Flexspline for Harmonic Reduction Gear[J]. Materials Reports, 2018, 32(16): 2842-2846.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.16.026 OR http://www.mater-rep.com/EN/Y2018/V32/I16/2842

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