整体辗钢车轮淬火工艺的数值模拟

doi:10.13251/j.issn.0254-6051.2020.10.042

金属热处理 ›› 2020, Vol. 45 ›› Issue (10): 218-224.DOI: 10.13251/j.issn.0254-6051.2020.10.042

整体辗钢车轮淬火工艺的数值模拟

孙晓明, 燕艳, 杜晓钟, 汪文博

太原科技大学机械工程学院, 山西太原 030024

收稿日期:2020-03-19 出版日期:2020-10-25 发布日期:2020-12-29
通讯作者: 杜晓钟,教授,博士,E-mail:xiaozhong.du@163.com
作者简介:孙晓明(1992—),男,硕士研究生,主要研究方向为金属热加工工艺,E-mail:sunxiaoming92@163.com。
基金资助:
国家自然科学基金(51875501);山西省重点研发计划(重点)高新领域项目(201703D111005);2018年山西省研究生联合培养基地人才培养项目(2018JD32)

Numerical simulation of quenching process of integral steel rolling wheel

Sun Xiaoming, Yan Yan, Du Xiaozhong, Wang Wenbo

School of Mechanical Engineering, Taiyuan University of Science and Technology,Taiyuan Shanxi 030024, China

Received:2020-03-19 Online:2020-10-25 Published:2020-12-29

摘要/Abstract

摘要： 利用DEFORM-HT软件结合CL60钢的连续冷却转变曲线(CCT曲线),研究了某840D型车轮在不同淬火工艺下的温度场、应力场以及微观组织变化情况。结果表明:踏面喷水淬火工艺是最优淬火方案,踏面喷水淬火后车轮的最大等效应力(卸载之后的等效应力即为残余应力)为245 MPa,优于其他方案,车轮踏面在淬火过程中发生马氏体转变可以增加车轮的耐磨性,车轮轮辋表面的硬度约为33 HRC,满足企业27~34 HRC的要求。根据实际工况结合CL60钢的CCT曲线建立了车轮喷水淬火的试验方案,观察试样的显微组织并与模拟结果进行对比,证明模拟结果是可靠的。

关键词: DEFORM-HT, CL60钢, CCT曲线, 淬火, 显微组织

Abstract: Temperature field, stress field and microstructure change of an 840D wheel under different quenching processes were studied by using the DEFORM-HT software numerical simulation calculation, combined with the continuous cooling transition curve (CCT curve) of CL60 steel. The results show that the tread water quenching process is the optimal quenching project. It is concluded that the maximum equivalent stress of the wheel(the equivalent stress after unloading is the residual stress) after water quenching is 245 MPa, which is better than other schemes. The martensite transformation of the wheel tread during the quenching process can increase the wear resistance of the wheel. The hardness of the wheel rim surface is 33 HRC,which can meet the requirements of 27-34 HRC. According to the actual working conditions combined with the CCT curve of CL60 steel, the experimental scheme of water jet quenching is established. The microstructure of the specimen is observed and compared with the simulation results, which prove that the simulation results are reliable.

Key words: DEFORM-HT, CL60 steel, CCT curve, quenching, microstructure

中图分类号:

TG161

孙晓明, 燕艳, 杜晓钟, 汪文博. 整体辗钢车轮淬火工艺的数值模拟[J]. 金属热处理, 2020, 45(10): 218-224.

Sun Xiaoming, Yan Yan, Du Xiaozhong, Wang Wenbo. Numerical simulation of quenching process of integral steel rolling wheel[J]. Heat Treatment of Metals, 2020, 45(10): 218-224.

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整体辗钢车轮淬火工艺的数值模拟

Numerical simulation of quenching process of integral steel rolling wheel

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