拼焊板V形自由弯曲回弹控制影响因素分析  

Analysis of Effect Factor of Springback Control of Tailor Welded Blanks Air Bending Process

作　　者：段永川[1] 官英平[1] 

机构地区：[1]燕山大学先进锻压成形技术与科学教育部重点实验室,秦皇岛066004

出　　处：《中国机械工程》2015年第2期260-266,共7页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(51275444);高等学校博士学科点专项科研基金资助项目(20121333110003);秦皇岛市科技支撑计划资助项目(201401A034);燕山大学博士基金资助项目(B861)

摘　　要：在平截面和平面弯曲等假设条件下,建立了可适用于纵向拼焊板V形小曲率自由弯曲回弹的解析预测模型。在自由弯曲卸载阶段,该模型引入了两母板间相互作用的弯矩,基于单一母板求解了拼焊板回弹后的弯曲角。利用解析模型分析了不同工艺参数对拼焊板V形自由弯曲力和回弹后弯曲角度的影响规律,确定了影响拼焊板V形自由弯曲力和卸载后回弹角的主要影响因素。An analytical springback prediction model of TWl3s tor air benchng process was put tot- ward for small curvature bending. At the air bending unloading phase, the interaction moment of the two parent blanks was introduced to the model, the unloaded angle was obtained based on a single par- ent plate in the analytical model. The effect law of bending force and unloaded angle were obtained u- sing analytical model. The main effect factors of bending force and unloaded angle were determined.

关 键 词：拼焊板 自由弯曲 回弹控制 解析模型 影响因素 

分 类 号：TG386.31[金属学及工艺—金属压力加工]