薄壁箱形金属管材冲压成形试验研究  

Experimental Research on Stamping Forming of Thin-walled Square Metal Pipe

作　　者：薛冰冰[1] 刘和平[2] 何聪[3] 

机构地区：[1]河南科技大学信息工程学院,河南洛阳471023 [2]洛阳理工学院机械系,河南洛阳471023 [3]河南科技大学机电工程学院,河南洛阳471003

出　　处：《机床与液压》2015年第7期32-34,共3页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(51075124)

摘　　要：以薄壁箱形金属管材为对象,研究了冲压成形过程中冲压速度、约束条件等因素对成形质量的影响。研究表明:冲压过程中增加薄壁箱形管材侧壁约束可以提高薄壁箱形管坯整体受压变形的稳定性,利用侧壁挡板和内腔充沙等措施,可明显减弱管坯产生侧壁屈曲;合适的冲压速度可有效消除管坯顶面屈曲;合理控制冲压速度和约束条件等工艺参数可有效提高薄壁箱形金属管材冲压成形质量。The influence of stamping speed and constraint conditions on the forming quality is studied in the stamping forming process for thin-walled square metal pipe as an object. Studies show that increased constraints on the pipe wall of thin-walled square metal pipe can raise the overall stability of compression deformation in the stamping process. It can obviously decrease the pipe wall flexure by using some measures,such as setting baffle on side wall and filling sand in inner cavity. Suitable stamping speed can effectively eliminate flexure of top wall of the thin-walled square metal pipe. Reasonable stamping process parameters,such as stamping speed and constraint conditions,can effectively improve the stamping forming quality of thin-walled square metal pipe.

关 键 词：薄壁金属管材 冲压成形 成形质量 

分 类 号：U469.05[机械工程—车辆工程]