Numerical simulation and experimental study of residual stress of 18CrNiMo7-6 carburized steel by ultrasonic rolling
-
摘要: 齿轮及其传动装置是现代机械装备的核心基础零部件，齿轮残余应力分布状态是影响其服役寿命的重要因素。文章以18CrNiMo7-6渗碳钢为研究对象，采用数值模拟与试验研究相结合的方法，研究了静压力、超声振幅和超声频率等超声滚压强化加工参数对试样表面残余应力的影响。结果表明超声滚压强化加工有效地改善了18CrNiMo7-6渗碳钢试样表面的残余应力，且随着静压力和超声振幅的增加，18CrNiMo7-6渗碳钢试样表面残余压应力、最大残余压应力和残余压应力场深度均得到显著提高。
-
关键词:
- 18CrNiMo7-6渗碳钢 /
- 超声滚压 /
- 残余压应力
Abstract: Gears and their transmission devices are the core basic components of modern mechanical equipment, and the residual stress distribution state of gears is an important factor affecting their service life. Taking 18CrNiMo7-6 carburized steel as the research object, the influence of ultrasonic rolling strengthening processing parameters such as static pressure, ultrasonic amplitude and ultrasonic frequency on the residual stress of the specimen surface was studied by combining numerical simulation and experimental research. The results show that ultrasonic rolling strengthening effectively improves the residual stress on the surface of 18CrNiMo7-6 carburized steel, and with the increase of static pressure and ultrasonic amplitude, the residual compressive stress, maximum residual compressive stress and residual compressive stress layer thickness of 18CrNiMo7-6 carburized steel specimen are significantly improved. -
表 1 超声滚压加工参数表
静压力/N 超声振幅/μm 超声频率/kHz 600/800/1 000/1 200/1 400 6/8/10/12/14 20/22.5/25/27.5/30 
下载: 导出CSV
表 3 18CrNiMo7-6渗碳合金钢Johnson-Cook本构参数
E/GPa P ρ/（kg·m−3） A/MPa B/MPa C n 205 0.3 7 850 1 014 1 055 0.001 0.36
下载: 导出CSV
-
[1] 国家自然科学基金委员会工程与材料科学部. 机械工程学科发展战略报告（2021~2035）[M]. 北京: 科学出版社, 2021. [2] 中国机械工程学会. 中国机械工程技术路线图 [M]. 2版. 北京: 中国科学技术出版社, 2016. [3] 刘怀举,张博宇,朱才朝,等. 齿轮接触疲劳理论研究进展[J]. 机械工程学报,2022,58(3):95-120. [4] 屈盛官,吴志兵,张亚龙,等. 超声表面滚压加工对20CrMoH钢摩擦磨损性能的影响[J]. 表面技术,2022,51(2):211-222. doi: 10.16490/j.cnki.issn.1001-3660.2022.02.020 [5] 刘立波. 轴承套圈超声滚压强化力学分析与仿真[D]. 洛阳: 河南科技大学, 2019: 42-45. [6] 郁俐,涂小龙. 18CrNiMo7-6钢深层渗碳工艺对组织性能的影响[J]. 金属加工:热加工,2019(5):80-82. [7] 张翼. 超声波辅助滚压机理及试验研究[D]. 青岛: 青岛科技大学, 2017. [8] 舒畅,程礼,许煜. Johnson-Cook本构模型参数估计研究[J]. 中国有色金属学报,2020,30(5):1073-1083. [9] Cao Y G,Zhen Y,Song M,et al. Determination of Johnson–Cook parameters and evaluation of Charpy impact test performance for X80 pipeline steel[J]. International Journal of Mechanical Sciences,2020,179:105627. doi: 10.1016/j.ijmecsci.2020.105627 [10] 黄西成, 胡文军. Johnson-Cook本构参数的确定方法[C]. 中国力学学会爆炸力学实验技术专业组. 第六届全国爆炸力学实验技术学术会议论文集, 2010: 8. [11] 张晨辉. 18CrNiMo7-6本构模型参数测定和超声滚压理论分析及仿真研究[D]. 郑州: 郑州大学, 2021. [12] 张亚龙. 高功率密度变速箱用新型齿轮钢表面喷丸-超声滚压复合强化机理研究[D]. 广州: 华南理工大学, 2021. [13] Wang F,Men X H,Liu Y J,et al. Experiment and simulation study on influence of ultrasonic rolling parameters on residual stress of Ti-6Al-4V alloy[J]. Simulation Modelling Practice and Theory,2020,104:102121. doi: 10.1016/j.simpat.2020.102121 [14] Hu J,Chen B,Smith D J. On the evaluation of the Bauschinger effect in an austenitic stainless steel-The role of multi-scale residual stresses[J]. International Journal of Plasticity,2016(84):203-223. -
下载:
点击查看大图
图(7) / 表(3)
计量
- 文章访问数: 80
- HTML全文浏览量: 8
- PDF下载量: 24
- 被引次数: 0
