36MnVS4和46MnVS5连杆裂解性能差异性研究及质量缺陷分析

doi:10.3969/j.issn.1004-132X.2024.06.016

摘要/Abstract

摘要： 针对高强度的36MnVS4和46MnVS5两种裂解连杆用非调质材料，开展了连杆裂解加工性能的对比分析，探究了影响连杆裂解质量的原因，并对连杆裂解加工的边界作出了优化，分析了连杆结构对裂解加工性能的影响。根据连杆实际裂解加工特性，设置了有限元模拟的边界条件。通过分析裂解槽根部的主应力和塑性应变的分布特征，获得了不同材料连杆的裂纹萌生位置；用ABAQUS和FRANC3D两个有限元软件模拟了连杆裂解的裂纹扩展过程，并进行了对比分析；优化了36MnVS4材料裂解加工的加载速度；分析了连杆结构对裂解性能的影响。研究结果表明：在相同边界条件下，46MnVS5材料裂解性能较好，裂纹萌生位置趋向于唯一，缺口敏感性低、断裂脆性较好、裂解速度较快，所需的裂解载荷更大；在25 mm/s的加载速度下，36MnVS4材料的裂解性能得到优化；理论断裂面面积较小的连杆结构裂解性能相对较好。

关键词: 裂解性能, 裂纹萌生, 裂纹扩展, 加载速度, 理论断裂面

Abstract: A comparative analysis was conducted on the fracture splitting processing performance of two types of high-strength connecting rods, 36MnVS4 and 46MnVS5, which were made from non-quenched and tempered materials. The reasons that affected the quality of connecting rod cracking were explored, and the boundaries for connecting rods cracking processing were optimized. The impacts of the connecting rod structures on the fracture-splitting processing performance were analyzed as well. The distribution characteristics of principal stresses and plastic strains at the roots of the cracking grooves were analyzed, and the crack initiation positions for connecting rods made of different materials were determined. The crack propagation processes of the connecting rods were simulated using the finite element software ABAQUS and FRANC3D, and a comparative analysis was conducted. The loading speed for the cracking processing of the 36MnVS4 materials was optimized. The impacts of the connecting rod structures on the cracking performance were analyzed.The results indicate that under the same boundary conditions, the cracking performance of 46MnVS5 material is better, with the tendency to have a unique crack initiation position, low notch sensitivity, good fracture brittleness, faster crack propagation speed, and higher required crack load. At a loading speed of 25 mm/s, the cracking performance of 36MnVS4 material improves. Connecting rod structures with smaller theoretical fracture surface area exhibit relatively better cracking performance.

Key words: , fracture splitting performance, crack initiation, crack propagation, loading speed, theoretical fracture surface

中图分类号:

TK406

孔彦坤1, 邓伟1, 金国忠2, 雷基林1, 陈丽琼3, 贾德文1. 36MnVS4和46MnVS5连杆裂解性能差异性研究及质量缺陷分析[J]. 中国机械工程, 2024, 35(06): 1103-1111，1119.

KONG Yankun1, DENG Wei1, JIN Guozhong2, LEI Jilin1, CHEN Liqiong3, JIA Dewen1. Research on Difference of Fracture Splitting Performance and Quality Defect Analysis for 36MnVS4 and 46MnVS5 Connecting Rods[J]. China Mechanical Engineering, 2024, 35(06): 1103-1111，1119.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://www.cmemo.org.cn/CN/10.3969/j.issn.1004-132X.2024.06.016

http://www.cmemo.org.cn/CN/Y2024/V35/I06/1103

参考文献

［1］张传友. 46MnVS5连杆裂解槽脉冲激光加工温度场数值模拟及工艺研究［D］. 广州：广东工业大学, 2022.
ZHANG Chuanyou. Numerical Simulation of Temperature Field and Process Study of Pulsed Laser Processing of 46MnVS5 Connecting Rod Cracking Tank［D］. Guangzhou：Guangdong University of Technology, 2022.
［2］ZHANG Z X, CHEN F Q, XIONG Z Y, et al. Fracture of High Carbon Microalloyed Steel Bars Used for Fracture Splitting Con-rods［J］. Advanced Materials Research, 2012, 535:561-565.
［3］HENZLER P, TENGLER A. Method and Installation for Machining Machine Parts Having a Bearing Eye:U.S. Patent 5, 263, 622［P］. 1993-11-23.
［4］BECKER L T. Method of Cracking a Connecting Rod:U.S. Patent 5, 274, 919［P］. 1994-1-4.
［5］杨宏宇. 连杆断裂剖分过程数值模拟及主要裂解缺陷分析［D］. 长春：吉林大学, 2014.
YANG Hongyu. Numerical Simulation of Connecting Rod Fracture Process and Analysis on Main Fracture Splitting Defects［D］. Changchun：Jilin University, 2014.
［6］杨慎华, 寇淑清, 谷诤巍，等. 发动机连杆裂解加工新技术［J］. 哈尔滨工业大学学报, 2000, 32(3):129-131.
YANG Shenhua, KOU Shuqing, GU Zhengwei, et al. Fracture Splitting Processing of Engine Connecting Rod［J］. Journal of Harbin Institute of Technology, 2000, 32(3):129-131.
［7］寇淑清, 杨慎华, 邓春萍，等. 裂解工艺——发动机连杆制造最新技术［J］. 中国机械工程, 2001, 12(7):839-841.
KOU Shuqing, YANG Shenghua, DENG Chunping, et al. Fracture Splitting Technology—The Advanced Method in Manufacturing Engine Connecting Rod［J］. China Mechanical Engineering, 2001, 12(7):839-841.
［8］KUBOTA T, YAMAGATA H. Advanced Technology of Automotive Connecting Rod［J］. Materials Science Forum, 2007, 539/543:4850-4854.
［9］KUBOTA T, DOI K, MURAKAMI T, et al. Development of Fracture-split Connecting Rods Made of Titanium Alloy for Use on Supersport Motorcycles［J］. SAE International Journal of Engines, 2016, 9(1):483-490.
［10］邓伟, 何葛豪, 贾德文，等. 基于正交实验的TC4钛合金连杆锻造工艺参数影响研究［J］. 锻压技术, 2023, 48(8):1-10.
DENG Wei, HE Gehao, JIA Dewen, et al. Study on Influence of Forging Process Parameters for TC4 Titanium Alloy Connecting Rod Based on Orthogonal Test［J］. Forging & Stamping Technology, 2023, 48(8):1-10.
［11］KOU S, GAO Y, ZHAO Y, et al. Stress Analysis and Optimization of Nd:YAG Pulsed Laser Processing of Notches for Fracture Splitting of a C70S6 Connecting Rod［J］. Journal of Mechanical Science and Technology, 2017, 31:2467-2476.
［12］KOU S Q, GAO Y, SHI Z. The Influence of Phase Transformation Hardening on Continuous Laser Processing of Notches for Fracture Splitting of a C70S6 Connecting Rod［C］∥IOP Conference Series:Materials Science and Engineering. Taizhong, IOP Publishing, 2017, 164:012024.
［13］KOU S Q, GAO Y, GAO W Q. The Influence of Auxiliary Gases in the Optimized Analysis of Pulsed Laser Grooving of a C70S6 Connecting Rod for Fracture Splitting［J］. Results in Physics, 2017, 7:628-635.
［14］高岩. 脉冲激光切割裂解槽热-力耦合仿真及辅助气体流场分析［D］. 长春：吉林大学, 2019.
GAO Yan. Thermal-mechanical Coupling Simulation and Auxiliary Gas Flow Field Analysis in Pulsed Laser Grooving for Fracture Splitting［D］.Changchun： Jilin University, 2019.
［15］张冲, 王冠, 杨志刚,等. 脉冲光纤激光加工36MnVS4连杆裂解槽的研究［J］. 激光与红外, 2018, 48(3):285-290.
ZHONG Chong, WANG Guan, YANG Zhigang, et al. Study on Fracture Splitting Groove of 36MnVS4 Connecting Rod Fabricated by Pulse Fiber Laser［J］. Laser & Infrared, 2018, 48(3):285-290.
［16］张冲, 王冠, 杨志刚,等. 脉冲光纤激光切割连杆裂解槽工艺参量优化［J］.激光技术, 2018, 42(3):422-426.
ZHANG Chong, WANG Guan, YANG Zhigang, et al. Optimization of Technology Parameters for Fracture Splitting Grooves of Connecting Rods Fabricated by Pulse Fiber Laser［J］. Laser Technology, 2018, 42(3):422-426.
［17］程焱. 脉冲光纤激光加工36MnVS4连杆裂解槽裂纹扩展的数值模拟及实验研究［D］. 广州：广东工业大学, 2021.
CHENG Yan. Numerical Simulation and Experimental Research on Crack Propagation of 36MnVS4 Connecting Rod Cracking Groove by Pulsed Fiber Laser Processing［D］. Guangzhou：Guangdong University of Technology, 2021.
［18］张传友, 王冠, 刘赞丰, 等. 46MnVS5连杆裂解槽脉冲激光加工数值模拟研究［J］.激光杂志, 2022, 43(6):35-40.
ZHANG Chuanyou, WANG Guan, LIU Zanfeng, et al. Numerical Simulation of Pulsed Laser Machining of 46MnVS5 Connecting Rod Cracking Slot［J］. Laser Journal, 2022, 43(6):35-40.
［19］李晓辉. 中碳非调质连杆胀断缺陷与Nb微合金化研究［D］. 西宁：青海大学, 2018.
LI Xiaohui. The Splitting Fracture Defects and Nb-microalloyed of Air-cooled Medium Carbon Forging Steel Connecting Rod［D］.Xining： Qinghai University, 2018.
［20］石舟. 36MnVS4连杆裂解性能研究及胀断缺陷评价［D］. 长春：吉林大学, 2019.
SHI Zhou. Study on Fracture-splitting Performance of 36MnVS4 Connecting Rod and Evaluation of Fracture Defects［D］.Changchun：Jilin University, 2019.
［21］寇淑清, 宋玮峰, 石舟. 36MnVS4连杆裂解加工模拟及缺陷分析［J］. 吉林大学学报(工学版), 2017, 47(3):861-868.
KOU Shuqing, SONG Weifeng, SHI Zhou. Fracture Splitting Simulation and Defect Analysis of 36MnVS4 Connecting Rod［J］. Journal of Jilin University (Engineering and Technology Edition), 2017, 47(3):861-868.［22］SHI Z, KOU S. Analysis of Quality Defects in the Fracture Surface of Fracture Splitting Connecting Rod Based on Three-dimensional Crack Growth［J］. Results in Physics, 2018, 10:1022-1029.
［23］KOU S, SHI Z, SONG W. Fracture-splitting Processing Performance Study and Comparison of the C70S6 and 36MnVS4 Connecting Rods［J］. SAE International Journal of Engines, 2018, 11(4):463-474.

[1]	郭伟, 曹宏瑞, 訾艳阳, 尉询楷. 滚动轴承接触疲劳裂纹建模与扩展规律研究[J]. 中国机械工程, 2023, 34(16): 1891-1899.
[2]	董龙龙, 俞树荣, 李淑欣, 宋伟. 滚动接触下裂纹充液行为研究[J]. 中国机械工程, 2022, 33(10): 1210-1218.
[3]	周海, 张杰群, 徐亚萌, 沈军州, 黄梦蝶. 单颗磨粒刻划氧化镓晶体表面的裂纹成核位置及扩展方向研究[J]. 中国机械工程, 2021, 32(16): 1945-1951.
[4]	顾震华, 李可, 顾杰斐, 宿磊, 苏文胜. 基于非线性预测滤波算法的疲劳裂纹扩展预测[J]. 中国机械工程, 2021, 32(14): 1709-1715.
[5]	吴英龙, 宣海军, 单晓明, 付汝龙. 离心轮内部疲劳裂纹扩展及其无损定量表征[J]. 中国机械工程, 2021, 32(06): 658-665.
[6]	陈景强1;马廉洁1,2;孟博1;周云光2. 氟金云母表面形成机理及表面粗糙度理论模型[J]. 中国机械工程, 2020, 31(24): 2918-2923.
[7]	方修洋;黄伟;王俊国. 温度对动车组车轮钢服役次生疲劳裂纹起裂扩展特性影响[J]. 中国机械工程, 2020, 31(03): 261-266.
[8]	高红俐;朱楷勇;龚澳;姜伟. 高频谐振疲劳机载荷测量误差建模分析及试验夹具优化设计[J]. 中国机械工程, 2019, 30(22): 2675-2682.
[9]	郑捷1;刘洋1,2;童明波1. 腐蚀环境对飞机梁结构连接件疲劳寿命和裂纹扩展的影响[J]. 中国机械工程, 2019, 30(17): 2129-2134.
[10]	郭帅;赵相吉;何成刚;刘启跃;郭俊;王文健. 水介质下打磨磨痕对钢轨疲劳损伤的影响[J]. 中国机械工程, 2019, 30(08): 889-895.
[11]	李秀红1，2;李刚3;任家骏1;李文辉1，2. 高速动车组斜齿轮的齿根裂纹萌生寿命数值计算[J]. 中国机械工程, 2018, 29(09): 1017-1024.
[12]	王磊1,2;单勇峰1;任俊刚3;回丽1,2;周松2. 搅拌摩擦修复2A12铝合金的疲劳性能和裂纹扩展行为[J]. 中国机械工程, 2017, 28(13): 1628-1632.
[13]	李文凯, 崔海涛, 温卫东, 苏旭明, C C Engler-Pinto Jr. 环境湿度对铸铝合金超声疲劳裂纹扩展速率的影响研究[J]. 中国机械工程, 2016, 27(17): 2396-2401.
[14]	高红俐, 郑欢斌, 姜, 伟, 齐子诚, . 基于图像处理的疲劳裂纹扩展长度在线测量方法[J]. 中国机械工程, 2016, 27(07): 917-924.
[15]	高红俐, 刘辉, 郑欢斌, 刘欢. 谐振式疲劳裂纹扩展试验振动系统质点质量的软测量方法[J]. 中国机械工程, 2016, 27(05): 627-634.