锻压技术

基于灰色关联的皮卡尾门外板的拉延工艺参数优化

英文标题：Optimization on drawing process parameters for pickup tailgate outer panel based on gray relational analysis

作者：黄忠辉黄瑶王雷刚胡亚男

分类号：U463.83

出版年,卷(期):页码：2017,42(6):39-42

摘要：

为了解决皮卡尾门外板拉延过程中产生的破裂、起皱的问题，采用数值模拟和灰色关联法相结合的方法对拉延工艺参数进行优化。将料厚最大减薄率和最大增厚率作为优化目标，以圆角和直边段的拉延筋阻力系数、压边力、冲压速度、摩擦系数为工艺参数变量进行5因素4水平的正交试验。在AutoForm软件中进行有限元数值模拟。基于灰色关联分析法，计算出各工艺参数对破裂和起皱综合指标的关联度，给出了最优的工艺参数方案：圆角段拉延筋阻力系数为0.15，直边段拉延筋阻力系数为0.45，压边力为800 kN，冲压速度为3.5 m·s-1，摩擦系数为0.13。应用最优工艺参数组合进行模具制造和现场实际生产，得到了质量良好的冲压件，有效控制了破裂和起皱风险。

In order to solve the crack and wrinkle defects during the drawing process, the drawing process parameters were optimized by combining gray relation analysis with numerical simulation. Then, the orthogonal experiment with five factors and four levels was carried out by setting the maximum thinning rate and the maximum thickening rate as the optimization objectives and setting the drag coefficient from rounded and straight edge of drawbead, the blank holder force, the forming speed and the friction coefficient as the process parameter variables. Then, the finite element numerical simulation was conducted by AutoForm software. Based on the gray relational analysis method, the gray relational degrees of each process parameter to the comprehensive index of crack and wrinkle were calculated respectively, and the optimum process parameters were obtained with the drag coefficient of the round drawbead of 0.15, the drag coefficient of the straight edge drawbead of 0.45, the blank holder force of 800 kN, the forming speed of 3.5 m·s-1 and the friction coefficient of 0.13. In addition, by applying the optimal combination of process parameters to manufacture die and product onsite, the stamping parts with good quality were obtained, and the risk of crack and wrinkle could be controlled effectively.

基金项目：

国家自然科学基金资助项目（51275216）

黄忠辉（1989-），男，硕士研究生王雷刚（1963-），男，博士，教授，博士生导师

参考文献：

［1］柯桂艳，路平，江开勇，等.汽车后地板前横梁冲压件的成形质量控制[J].锻压技术，2016,41(8):39-42.

Ke G Y, Lu P, Jiang K Y,et al. Quality control of front beam for rear floor part used in car [J] . Forging ＆ Stamping Technology, 2016,41(8):39-42.

［2］张林波，王雷刚.基于AutoForm的皮卡B柱内板上段加强板压料面设计[J].锻压技术，2016，41（8）：43-47.

Zhang L B, Wang L G. Binder design for pickup B-pillar inner panel upper reinforced panel based on AutoForm [J]. Forging & Stamping Technology，2016，41（8）：43-47.

［3］王列亮，郑燕萍，闫盖，等.基于正交试验的拉延筋阻力优化[J].热加工工艺, 2014,43(5):142-144.

Wang L L, Zheng Y P, Yan G, et al. Optimization of drawing resistance based on orthogonal experiment [J]. Hot Working Technology, 2014, 43(5):142-144.

［4］张纾纡. 某SUV顶盖冲压工艺及组织性能的研究[D]. 重庆：重庆大学, 2016.

Zhang S Y. Study on Forming Technology, Microstructure and Mechanical Properties of a SUV Roof [D]. Chongqing: Chongqing University, 2016.

［5］Zuo W, E J Q, Liu X, et al. Orthogonal experimental design and fuzzy grey relational analysis for emitter efficiency of the microcylindrical combustor with a step[J]. Applied Thermal Engineering, 2016, 103:945-951.

［6］尹少华, 林国, 彭金辉,等. 响应曲面法优化微波干燥碳酸稀土的实验研究[J]. 稀有金属, 2016, 40(4):350-355.

Yin S H，Lin G，Peng J H, et al. Optimization on experiment of microwave drying of rare earth carbonate using response surface methodology[J]. Chinese Journal of Rare Metals, 2016, 40(4):350-355.

［7］王雷刚, 周建芬, 许亚婷,等. 基于平板滑动摩擦实验的镀锌板摩擦特性研究[J]. 塑性工程学报, 2016, 23(2):87-91.

Wang L G, Zhou J F, Xu Y T, et al. Friction characteristic of galvannealed sheet steel based friction test [J]. Journal of Plasticity Engineering, 2016, 23(2):87-91.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】