基于超声振动的纯钛TA1板材的成形性能  

Research on forming performance of TA1 subjected to ultrasonic vibration

作　　者：杨枫[1] 申昱[1] 曹常印[1] 于沪平[1] 董湘怀[1] 胡俊[1] 

机构地区：[1]上海交通大学模具CAD国家工程研究中心,上海200030

出　　处：《塑性工程学报》2014年第4期42-46,共5页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(50835002;50975174);教育部博士点基金资助项目(200802480053;20100073110044)

摘　　要：金属超声振动塑性成形具有低能耗、降低变形力和提高产品质量等优点。文章设计了一套用于研究纯钛TA1板材在超声振动下成形性能的试验装置,并对纯钛TA1板材进行拉伸试验,测定不同超声振动功率和频率下纯钛TA1的力学性能。结果表明,超声激振作用能有效降低材料的流动应力和屈服强度,且较低频率、大功率的超声振动更有利于提高TA1的成形性能,可应用于纯钛TA1超声振动塑性成形中,提高成形效率和产品质量。Plastic forming based on ultrasonic vibration has a lot of significant advantages , including low-energy , decreasing deforming load ,and increasing product quality .In this study ,a test device was designed to study the forming performance of TA1 sheet subjected to ultrasonic vibration . A serial of tensile tests were conducted to study the mechanical properties of TA 1 sheets with different vibration power levels and frequencies . The results show that the ultrasonic vibration has a positive effect on decreasing yield strength and deforming load . The forming performance of TA1 sheet can be improved with lower vibration frequency and higher power ,which can help improve the forming efficiency and increase the product quality during the forming process of T A1 subjected to ultrasonic vibration .

关 键 词：TA1 超声振动 成形性能 屈服强度 拉伸极限 

分 类 号：TG301[金属学及工艺—金属压力加工]