Experimental study of residual stresses of Cam produced by heat treatment and grinding processes

The excessive residual stresses caused by heat treatment and grinding processes is one of the main challenges for Cam manufacturing, because they will lead to delayed cracks and reduce the fatigue life of Cam. Experimental studies are one of the essential ways to keep residual stresses at a reasonable value. Thus, orthogonal and single-factor experiments are carried out to explore the effect of heat treatment and grinding processes on the residual stresses of the Cam. The heat treatment processes include quenching temperature, tempering temperature, and tempering holding time. The grinding process includes grinding speed and feed speed. Besides, the superimposed residual stresses produced by heat treatment and grinding processes are analyzed. The results show that the heat treatment and grinding processes produce compressive residual stresses. The heat treatment process combined with the grinding process increases the superimposed residual stress. In addition, the critical factor for the distribution of the final stresses on the Cam surface is the grinding process, and the grinding speed plays the most important role. Therefore, in order to optimize the Cam machining processes to control the residual stresses, the optimization sequence is grinding speed, quenching power, and tempering temperature. The processes to obtain the least stress are as follows: 128 kW of quenching power, 200 °C of tempering temperature and 8 h of tempering time.

[1]  Eric Feulvarch,et al.  XFEM investigation of a crack path in residual stresses resulting from quenching , 2013 .

[2]  D. Smith,et al.  Measurement and Prediction of Residual Stresses in Quenched Stainless Steel Components , 2014 .

[3]  C. Liu,et al.  Experimental investigation on variation of machined residual stresses by turning and grinding of hardened AISI 1053 steel , 2014 .

[4]  Steven Y. Liang,et al.  Temperature Effects on Grinding Residual Stress , 2014 .

[5]  J. Drezet,et al.  Quench induced residual stress prediction in heat treatable 7xxx aluminium alloy thick plates using Gleeble interrupted quench tests , 2015 .

[6]  Konstantinos Salonitis,et al.  Experimental and numerical study of grind-hardening-induced residual stresses on AISI 1045 Steel , 2015 .

[7]  Experimental investigation on the effects of different heat treatment processes on grinding machinability and surface integrity of 9Mn2V , 2015 .

[8]  Yinghui Ren,et al.  Experimental study on white layers in high-speed grinding of AISI52100 hardened steel , 2015 .

[9]  Guojun Wang,et al.  Quenching residual stress distributions in aluminum alloy plates with different dimensions , 2019, Rare Metals.

[10]  You-ping Yi,et al.  Influence of quenching cooling rate on residual stress and tensile properties of 2A14 aluminum alloy forgings , 2016 .

[11]  Long Wang,et al.  Surface integrity analysis of 20CrMnTi steel gears machined using the WD-201 microcrystal corundum grinding wheel , 2017 .

[12]  Study on strengthened layer of workpiece in prestress dry grinding , 2017 .

[13]  Yaolong Chen,et al.  Optimization of the grinding process to improve the surface integrity of bearing raceways , 2017 .

[14]  Yansheng Deng,et al.  Study on the effect mechanisms of pre-stress on residual stress and surface roughness in PSHG , 2017 .

[15]  Liangchi Zhang,et al.  Review on grinding-induced residual stresses in metallic materials , 2017 .

[16]  B. Azarhoushang,et al.  Evaluation of thermal damages and residual stresses in dry grinding by structured wheels , 2017 .

[17]  H. Mansouri,et al.  A novel cryogenic treatment for reduction of residual stresses in 2024 aluminum alloy , 2017 .

[18]  Yuansheng Yang,et al.  Effects of solution and quenching treatment on the residual stress in extruded ZK60 magnesium alloy , 2018 .

[19]  G. González-Doncel,et al.  A multi-scale analysis of the residual stresses developed in a single-phase alloy cylinder after quenching , 2018 .

[20]  Fritz Klocke,et al.  Residual stress interaction on gear manufacturing , 2018 .