有反向压力粘性介质胀形铝、钛合金板实验研究  

Experimental Investigations on Aluminum and Titanium Alloy Sheet Viscous Medium Bulging with Backpressure

作　　者：王新云[1] 夏巨谌[1] 胡国安[1] 王忠金[2] 王仲仁[2] 杨海峰[2] 

机构地区：[1]华中科技大学,湖北武汉430074 [2]哈尔滨工业大学,黑龙江哈尔滨150001

出　　处：《金属成形工艺》2002年第6期12-15,共4页Metal Forming Technology

基　　金：华中科技大学模具技术国家重点实验室开放基金资助项目 (0 2 - 2 )

摘　　要：粘性介质压力成形是一种新发展起来的板金软模成形工艺 ,其对板料成形性能的影响可以通过胀形实验来检测和评价。文中采用一种具有应变速率敏感性的半固态粘性物质作为传力介质 ,采用胀形实验研究了在有、无施加反向压力的情况下 ,铝和钛合金板料的成形形状特征与应变分布。结果表明 ,粘性介质压力成形 。Viscous pressure forming is a new developed sheet metal forming flexible technology. Its effects on sheet metal formability can be assessed by bugling experiment. In this paper, a semi solid and strain rate sensitive viscous material was used as carrying pressure medium. In bugling process, the strain distribution of aluminum and titanium alloy specimens and the deformation shape were analyzed with (or without) backpressure. The results show that viscous pressure forming, especially with backpressure, can improve the formability of sheet metal obviously.

关 键 词：粘性介质压力成形 胀形 反向压力 铝合金板 钛合金板 

分 类 号：TG306[金属学及工艺—金属压力加工]