Experimental Investigation on Effect of Ingot Processing on Gear Bending Fatigue Performance

Wu Zhongrui; Wei Peitang; Chen Difa; Mao Tianyu; Liu Huaiju

doi:10.16578/j.issn.1004.2539.2023.04.015

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Experimental Investigation on Effect of Ingot Processing on Gear Bending Fatigue Performance

Test·Analysis | 更新时间：2023-05-04

- Experimental Investigation on Effect of Ingot Processing on Gear Bending Fatigue Performance
- Journal of Mechanical Transmission Vol. 47, Issue 4, Pages: 98-107(2023)
- 作者机构：
  
  重庆大学机械传动国家重点实验室，重庆 400044
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2023.04.015
  CLC：
- Published：15 April 2023，
  
  Received：08 March 2022，
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武忠睿,魏沛堂,陈地发等.铸锭工艺对齿轮弯曲疲劳性能影响的试验研究[J].机械传动,2023,47(04):98-107.

Wu Zhongrui,Wei Peitang,Chen Difa,et al.Experimental Investigation on Effect of Ingot Processing on Gear Bending Fatigue Performance[J].Journal of Mechanical Transmission,2023,47(04):98-107.
武忠睿,魏沛堂,陈地发等.铸锭工艺对齿轮弯曲疲劳性能影响的试验研究[J].机械传动,2023,47(04):98-107. DOI： 10.16578/j.issn.1004.2539.2023.04.015.

Wu Zhongrui,Wei Peitang,Chen Difa,et al.Experimental Investigation on Effect of Ingot Processing on Gear Bending Fatigue Performance[J].Journal of Mechanical Transmission,2023,47(04):98-107. DOI： 10.16578/j.issn.1004.2539.2023.04.015.

摘要

当前，表面硬化齿轮存在多种铸锭工艺状态，开展铸锭工艺对齿轮弯曲疲劳性能影响研究，对齿轮抗疲劳精益设计和成本控制有十分重要的意义。对模铸锭、连铸坯和电渣锭18CrNiMo7-6渗碳齿轮开展了表面完整性表征测试，研究了不同铸锭状态齿轮的齿根残余应力、表面粗糙度和硬度差异；基于国家标准GB/T 14230—2021《齿轮弯曲疲劳强度试验方法》，设计了齿轮弯曲疲劳试验方案，对模铸锭、连铸坯和电渣锭18CrNiMo7-6齿轮开展了升降法齿轮弯曲疲劳试验，获取了不同可靠度下的弯曲疲劳极限，探究了铸锭工艺对齿轮弯曲疲劳极限的影响；对3种工艺状态齿轮开展了Locati快速测定法的齿轮弯曲疲劳极限测试，研究了两种试验方法的弯曲疲劳极限结果差异，为我国齿轮疲劳基础数据建设与抗疲劳主动设计提供参考。

Abstract

Ingot processing affects gear fatigue performance

which remains to be studied and becomes an important bottleneck problem limiting gear anti-fatigue design and cost saving. Surface integrity measurements of 18CrNiMo7-6 gears with mold ingots

continuous casting billet and electro-slag ingots are carried out

and tooth root residual stress

surface roughness and hardness gradient of these gears are studied. Based on GB/T 14230—2021

Test method of tooth bending strength for gear load capacity

gear bending fatigue tests are conducted with the staircase method. The bending fatigue limits under different reliabilities are obtained

and the influence of ingot processing on the bending fatigue performance is explored. The gear bending fatigue limit is also evaluated with the effective Locati method

and is compared with results of the lifting method. It provides some references for fundamental data construction of gear fatigue and anti-fatigue design in China.

关键词

齿轮弯曲疲劳铸锭状态升降测定法Locati测定法

Keywords

Gear bending fatigueIngot processingStaircase methodLocati method

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Wu Zhongrui

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Related Institution

State Key Laboratory of Mechanical Transmission，Chongqing University

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