1. Understanding the gear surface enhancement by hard-hobbing via ferritic-martensitic grain analysis.
- Author
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Fang, Zhenglong, Ren, Zongwei, Schulze, Volker, Feng, Yannan, Nagata, Tetsu, Furukawa, Shota, Tomiyama, Kimihiro, and Kizaki, Toru
- Subjects
GRAIN ,SURFACE analysis ,MANUFACTURING processes ,MARTENSITE - Abstract
Martensitic phase analysis in hardened gear hobbing (hard-hobbing) is crucial to function-oriented gear manufacturing process. A "weighted deviation factor" has been proposed to integrate machining-induced martensitic alterations into ferritic-martensitic grain analysis. It aimed to assess the martensitic phase using the orientation deviation angle of martensite lattice to the parent austenite to replace the traditional fraction-based assessment. Therefore, the martensitic phase integrity was evaluated with strain-phase hardening to correlate the gear surface function performance. The proposed factor incorporated the martensitic phase integrity as a function of the grain area, local misorientation, and crystallographic deviation, advancing phase-based hardened steel surface modification analysis. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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