( 哈尔滨工业大学 材料科学与工程学院, 哈尔滨 150001)
摘 要: 通过铝型材圆环的推弯实验， 研究了推弯工艺原理、 变形过程， 结合有限元模拟得到了和实验结果相吻合的型材厚度分布、 成形零件卸载回弹后的曲率半径及型材截面畸变。 结果表明： 推弯零件曲率及截面畸变一致性高， 成形模具结构简单且便于调整， 数值模拟可以用于推弯工艺的优化分析。
关键字: 铝型材；推弯工艺；数值模拟
（ School of Materials Science and Engineering，
Harbin Institute of Technology, Harbin 150001, China）
Abstract: The push-bending process of aluminum profile was investigated experimentally and numerically. The technical principle and deformation process were researched. The thickness distribution, the curvature after unload and the section distortion of push-bending parts were gotten. The results show that the curvature consistence and section distortion consistence of push-bending parts are high. The forming die is simple and the adjustment is convenient, and the numerical simulation represents the observed response in the laboratory tests fairly well.
Key words: aluminum profile; push-bending process; numerical simulation
