中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2012年
4期
479-484
,共6页
梁晨%刘唯唯%陈国强%苏明凯%王连东
樑晨%劉唯唯%陳國彊%囌明凱%王連東
량신%류유유%진국강%소명개%왕련동
半滑动式液压胀形%汽车桥壳%数值模拟%加载路径%壁厚分布
半滑動式液壓脹形%汽車橋殼%數值模擬%加載路徑%壁厚分佈
반활동식액압창형%기차교각%수치모의%가재로경%벽후분포
half-sliding hydroforming%automobile axle housing%numerical simulation%loading path%wall thickness distribution
对在不同加载路径下半滑动式液压胀形工艺中的管坯预胀形及终胀形过程进行了数值模拟,分析了不同加载路径下的管坯成形情况及其周向、轴向的壁厚分布,得到了预胀形管坯壁厚分布较好的加载路径以及终胀形时可确保成形合格样件的加载路径,并在普通液压机上进行了实验验证。
對在不同加載路徑下半滑動式液壓脹形工藝中的管坯預脹形及終脹形過程進行瞭數值模擬,分析瞭不同加載路徑下的管坯成形情況及其週嚮、軸嚮的壁厚分佈,得到瞭預脹形管坯壁厚分佈較好的加載路徑以及終脹形時可確保成形閤格樣件的加載路徑,併在普通液壓機上進行瞭實驗驗證。
대재불동가재로경하반활동식액압창형공예중적관배예창형급종창형과정진행료수치모의,분석료불동가재로경하적관배성형정황급기주향、축향적벽후분포,득도료예창형관배벽후분포교호적가재로경이급종창형시가학보성형합격양건적가재로경,병재보통액압궤상진행료실험험증。
A numerical simulation of pre-bulging and final bulging of half-sliding hydroforming under the different loading paths was carried out.The hydroforming state and the wall thickness of tubeblank in the periphery direction and the axial direction were analyzed under variable loading paths,and the better paths were figured out,by which the wall thickness distribution was good for the pre-bulging and the qualified samples were obtained.The small automobile axle housings were tria-produced with a common press.
