RESEARCH OF THE COLD-BEATING GEAR HARDNESS ON THE BASIS OF MICROSTRUCTURE

LI YuXi; LI Yan; CUI LiMu; XIAO JiMing; CHEN YuZhao

doi:10.16579/j.issn.1001.9669.2018.05.013

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RESEARCH OF THE COLD-BEATING GEAR HARDNESS ON THE BASIS OF MICROSTRUCTURE

更新时间：2022-09-22

- RESEARCH OF THE COLD-BEATING GEAR HARDNESS ON THE BASIS OF MICROSTRUCTURE
- Journal of Mechanical Strength Vol. 40, Issue 5, Pages: 1097-1104(2018)
- 作者机构：
  
  1. 西安理工大学机械与精密仪器工程学院
  2. 西安现代控制技术研究所
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2018.05.013
  CLC：
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LI YuXi, LI Yan, CUI LiMu, et al. RESEARCH OF THE COLD-BEATING GEAR HARDNESS ON THE BASIS OF MICROSTRUCTURE. [J]. 40(5):1097-1104(2018)
DOI：

LI YuXi, LI Yan, CUI LiMu, et al. RESEARCH OF THE COLD-BEATING GEAR HARDNESS ON THE BASIS OF MICROSTRUCTURE. [J]. 40(5):1097-1104(2018) DOI： 10.16579/j.issn.1001.9669.2018.05.013.

摘要

硬度是衡量齿轮质量的重要因素,传统工艺加工出的齿轮,由于金属纤维被切断,齿面硬度较低。针对紫铜、硬铝、Q235钢,进行冷滚打齿轮加工。从材料的微观组织角度研究滚打出齿轮的金属组织变化及其和齿轮硬度分布间的联系,通过实验发现冷滚打后齿轮金属组织未被切断,反而晶体细化流动,位错密度增加,最终拉成了规律密致的条状纤维组织。对齿面硬度进行两个方向的分布测量,发现硬度和强度有了很大的提高,改善了加工表面的金属组织,提高了齿轮的整体质量。

Abstract

Hardness is the important factors to measure the quality of the gear. The gear processed by traditional technology has a lower tooth surface hardness because of the cut metal fibre. This article was based on copper,aluminum,steel Q235,for gear cold-beating. The gear organization change and its relationship with hardness distribution were researched on the basis of the material microstructure. In the experiment,the gear metal organization was not cut off after cold-beating,accompanying the crystal granular flow and the increasing dislocation density. Eventually,the gear organization was to be close strips fibrous tissue.It was found that the hardness and strength of the gear had a big enhancement after the two directions measurement of the tooth surface hardness distribution. This technology improved the processing surface organization and the overall quality of the gear.

关键词

冷滚打齿轮硬度分布微观组织成形质量

Keywords

Cold-beatingGearHardness distributionMicrostructureProcessing quality

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