摘要
利用Abaqus有限元软件对新型耐蚀Ti35合金管材的数控弯曲过程进行了模拟研究。研究了弯曲角度、芯棒伸出量、压块相对助推速度和相对弯曲半径对Ti35合金管材成形结果的影响。结果表明,Ti35合金管材数控弯曲截面扁化率和回弹角随弯曲角度的增大而增大;弯曲变形越剧烈(如减小弯曲半径、压块相对助推速度,或增大芯棒伸出量),壁厚减薄率越大,回弹角越小。截面扁化率随芯棒伸出量、相对弯曲半径的增大而减小。
The numerical-control （NC） bending process of new corrosion-resistant Ti35 alloy tube is numerical analyzed using finite element （FE） software Abaqus. In the simulation, the effects of bending angle, mandrel protrusion length, relative boosting velocity and relative bending radius on forming process of Ti35 alloy tube were investigated. It is observed that the thickness thinning ratio is increasing, while the springback angle is decreasing when intensifying the bend forming, such as decrease the bending radius and relative boosting velocity, or increase the mandrel protrusion length. The mandrel protrusion length and relative bending radius have the negative effect. FE simulation can effectively decrease the manpower and material resource costs, and it also provides some reference for further industrialized application of Ti35 alloy.
出处
《钛工业进展》
北大核心
2015年第4期17-21,共5页
Titanium Industry Progress
基金
陕西省重点科技创新团队计划"钛合金研发创新团队"(2012KCT-23)
