Flame and Induction Hardening – An Advantageous Alternative to Case Hardening for Large Size Gears?

IF 0.3 Q4 THERMODYNAMICS HTM-Journal of Heat Treatment and Materials Pub Date : 2022-03-29 DOI:10.1515/htm-2021-2001
H. Cermak, T. Tobie, K. Stahl
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引用次数: 1

Abstract

Abstract Surface hardening is an economical and technological alternative to case hardening, especially for larger gear sizes. Due to the high carburization depths required for case hardening with large component dimensions and technological limitations (e. g. furnace size), typical surface hardening processes such as flame or induction hardening show advantages here. In this publication, a flame-spin-hardened variant is compared with an induction-hardened variant using the gap-by-gap method. Both variants have a gear size of mn = 14 mm. A comparison is also made with a case-hardened, shot-peened reference variant of comparable size. In the comparison, the chemical composition, microstructural properties, hardness-depth characteristics and experimental results of the tooth root bending strength tests on the pulsator test rig are presented, comparatively evaluated and discussed. The experimentally determined tooth root load carrying capacities of the two surface-hardened variants are then classified with the reference variant in the state of the art.
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火焰和感应淬火-大尺寸齿轮表面淬火的有利选择?
摘要表面硬化是一种经济和技术上的替代淬火,特别是对于较大的齿轮尺寸。由于大部件尺寸和技术限制(如炉尺寸)的淬火需要高渗碳深度,典型的表面淬火工艺,如火焰或感应淬火在这里显示出优势。在本出版物中,使用逐间隙方法将火焰旋转硬化变体与感应硬化变体进行比较。两种变体都有一个齿轮尺寸mn = 14毫米。还与类似尺寸的外壳硬化,喷丸参考变体进行了比较。在对比中,介绍了在脉动试验台上进行的齿根弯曲强度试验的化学成分、显微组织性能、硬度深度特性和试验结果,并进行了比较评价和讨论。实验确定的两种表面硬化变体的齿根承载能力然后与本技术状态下的参考变体分类。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
1.50
自引率
33.30%
发文量
43
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