CAJ | 학술논문

目的：研究板材充液成形柔性制造高精度、高质量马鞍形件的工艺方法。方法利用有限元动力学显示分析方法，对充液拉深和液压胀形两种成形工艺方案进行分析，并对比分析减薄率和成形极限图判断工艺方案的合理性。结果针对铝合金马鞍形件，通过对比分析2种方案，充液拉深工艺中的最大减薄率达到14．3％，液压胀形最大减薄率为7．2％，位置均在型面补充件的顶部，2种方案的成形极限都在安全区域内，未见破裂现象。结论通过工艺模拟分析，得到对铝合金马鞍形件，采用一模两件液压拉深成形工艺较合理，成本较低，加工周期短，加工效率高，成形精度高。
목적：연구판재충액성형유성제조고정도、고질량마안형건적공예방법。방법이용유한원동역학현시분석방법，대충액랍심화액압창형량충성형공예방안진행분석，병대비분석감박솔화성형겁한도판단공예방안적합이성。결과침대려합금마안형건，통과대비분석2충방안，충액랍심공예중적최대감박솔체도14．3％，액압창형최대감박솔위7．2％，위치균재형면보충건적정부，2충방안적성형겁한도재안전구역내，미견파렬현상。결론통과공예모의분석，득도대려합금마안형건，채용일모량건액압랍심성형공예교합리，성본교저，가공주기단，가공효솔고，성형정도고。
To study the hydroforming process method for flexible manufacturing of saddle parts with high precision and high quality.Using the finite element dynamic display analysis, the forming process programs of the passive forming and hydraulic bulging were analyzed.And the rationality of the process program was judged by comparison and analysis of the thinning rate and the forming limit diagram.For the aluminum alloy saddle parts, the contrastive analysis of two schemes showed that the maximum thinning rate of thickness was 14.3% and 7.2% in the passive forming and hydraulic bulging processes, respectively.In both processes, the location was at the top of the surface supplementing part.The forming limit of both schemes were within the safe range, without rupture phenomenon.Through process simulation analysis, it was re-vealed that for aluminum alloy saddle parts the one-mold-two-piece hydraulic deep drawing forming method was more rea-sonable, with lower cost, shorter processing cycle, higher processing efficiency, and higher forming accuracy.