首页|多场耦合作用下凸轮轴摆动磨削工艺对残余应力影响规律分析

多场耦合作用下凸轮轴摆动磨削工艺对残余应力影响规律分析

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为探讨摆动磨削工艺下,不同工艺参数对残余应力的影响规律,基于ABAQUS子程序DLOAD与DFLUX模拟磨削中的磨削热与磨削力进行热-力多耦合,建立多场耦合作用下凸轮轴摆动磨削残余应力场有限元模型,研究不同工艺参数对残余应力的影响,并通过XRD进行试验验证.结果表明,建立的有限元模型与试验误差少于16%,模型合理、可靠;摆动磨削能产生更大的残余压应力;增大摆动与幅度可以起到辅助加工的作用.研究结果为凸轮轴摆动磨削工艺提供了优化途径.
Influence of camshaft swing grinding process on residual stress under multi-field coupling
In order to investigate the influence of different process parameters on residual stress in swing grinding process,the influence of different process parameters on the residual stress is discussed by developing ABAQUS subroutine DFLUX and DLOAD to simulate grinding heat and grinding force in the thermal-mechanical coupling,the finite element model of camshaft swing grinding residual stress field under the action of multi-field coupling was established,the influence of different process parameters on the residual stress is discussed,and the experi-mental verification is carried out by XRD.The results show that the error of the finite element model is less than 16%,and the model is reliable.Swing grinding can produce larger compressive residual stress.Increasing the swing and amplitude can play an auxiliary role in machining.This study provides a way to optimize the camshaft swing grinding process.

camshaftswing grindingthermal mechanical couplingresidual stress

陈建志、柏小祥、李国超、管小燕、王燕、周宏根

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江苏科技大学机械工程学院,镇江 212100

凸轮轴 摆动磨削 热力耦合 残余应力

中国博士后科学基金面上项目

2023M730939

2024

江苏科技大学学报(自然科学版)
江苏科技大学

江苏科技大学学报(自然科学版)

影响因子:0.373
ISSN:1673-4807
年,卷(期):2024.38(1)
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