CAJ | 학술논문

在对曲轴圆角滚压加工过程分析的基础上，利用ANSYS有限元分析软件的LS-DYNA模块建立了其圆角滚压动态分析模型；并基于该模型分析了滚压过程中工艺参数对曲轴圆角处塑性变形及残余应力的影响规律。研究结果表明：在滚压力一定时，随着滚压圈数的增加，滚压圆角处塑性变形量和残余应力增大，但达到一定圈数后，塑性变形量和残余应力的变化幅度不再明显。滚压圈数一定时，随着滚压力的增大，塑性变形量与残余应力增加速率随滚压力的增加不断减小。研究结果为曲轴滚压加工过程中工艺参数的选取提供理论依据。
재대곡축원각곤압가공과정분석적기출상，이용ANSYS유한원분석연건적LS-DYNA모괴건립료기원각곤압동태분석모형；병기우해모형분석료곤압과정중공예삼수대곡축원각처소성변형급잔여응력적영향규률。연구결과표명：재곤압력일정시，수착곤압권수적증가，곤압원각처소성변형량화잔여응력증대，단체도일정권수후，소성변형량화잔여응력적변화폭도불재명현。곤압권수일정시，수착곤압력적증대，소성변형량여잔여응력증가속솔수곤압력적증가불단감소。연구결과위곡축곤압가공과정중공예삼수적선취제공이론의거。
A dynamic crankshaft fillet rolling model was established,based on the analysis of the fillet rolling process by using the LS-DYNA module of the ANSYS software,and it was used to analyze the effects of the process parameters on the plastic deformation and residual stress in the fillet area.The research results show that the plastic deformation and residual stress in the fillet area increase with the increasing rolling turns under the fixed rolling load,but its change rate would not be obvious again once the rolling turns reached a certain value.Whereas the growth rate of the plastic deformation and the residual stress decrease continuously with the in-creasing rolling load when the rolling turn was fixed.The research result can provide a theoretical basis for the selection of crankshaft rolling process parameters.