CAJ | 학술논문

蒙皮拉形是一个复杂的材料成形过程,对其进行工艺参数的优化十分重要.文章阐述了蒙皮拉形中的主要成形缺陷,并将这些缺陷进行量化,作为拉形工艺优化的目标函数.分析拉形过程中的主要工艺参数,提出了筛选重要参数的方法,以确定对成形质量起决定性作用的工艺参数.应用响应面法建立了工艺参数与成形质量评价指标之间的函数关系,并采用评价函数法,将多目标优化问题转化为单目标优化问题,对拉形实例进行了工艺参数的优化.通过有限元仿真以及生产试验,验证了该工艺参数优化方法的有效性与准确性.
몽피랍형시일개복잡적재료성형과정,대기진행공예삼수적우화십분중요.문장천술료몽피랍형중적주요성형결함,병장저사결함진행양화,작위랍형공예우화적목표함수.분석랍형과정중적주요공예삼수,제출료사선중요삼수적방법,이학정대성형질량기결정성작용적공예삼수.응용향응면법건립료공예삼수여성형질량평개지표지간적함수관계,병채용평개함수법,장다목표우화문제전화위단목표우화문제,대랍형실례진행료공예삼수적우화.통과유한원방진이급생산시험,험증료해공예삼수우화방법적유효성여준학성.
Stretch forming of aircraft skin is a complicated sheet metal forming process,so the optimization of process parameters is of significant importance.Defects in aircraft skin stretch forming were described and quantified as objective functions in process optimization.Parameters in stretch forming were analyzed and a method for selecting the main parameters effecting on the product quality was proposed.The objective functions were found by the method of response surface.The multi-objective problem was dealt with function evaluation method which transformed the multi-objective problem into a single one.The stretch forming parameters of a practical part with forming difficulties were optimized.Finite element analysis and productive experiment,were carried out to verify the effect and accuracy of the method.