网站首页期刊简介编委会过刊目录投稿指南广告合作征订与发行联系我们English
模具摩擦及润滑条件对超高强钢板热冲压成形的影响
英文标题:Influence of friction and lubrication conditions in the die on hot stamping for ultra high strength steel sheet
作者:李兵1 王敏1 2 张春1 肖海峰1 
单位:(1. 湖北汽车工业学院 材料科学与工程学院 湖北 十堰 442002 2. 华中科技大学 模具技术国家重点实验室 湖北 武汉 430074) 
关键词:超高强钢 热冲压 有限元模拟 摩擦条件 润滑条件 
分类号:TG386
出版年,卷(期):页码:2018,43(5):0-0
摘要:

 以汽车纵梁为研究对象,通过有限元模拟,分析摩擦系数对超高强钢板热冲压成形的影响。在不同润滑条件下,通过热冲压实验,研究润滑条件对超高强钢板热冲压成形的影响。结果表明:随着摩擦系数的增大,热冲压件的厚度变薄,等效应变值增大;无润滑剂的热冲压件存在划痕,出现破裂,氧化严重;石墨润滑的热冲压件存在划痕,出现破裂;玻璃润滑的热冲压件成形质量较好,3种润滑条件下的热冲压件的厚度逐渐增大。玻璃润滑剂有利于改善模具摩擦条件,增强热冲压过程中的抗氧化性。润滑条件对热冲压件金相组织、力学性能影响不大,零件的抗拉强度均达到1460 MPa,显微硬度达到460 HV 以上。

 For the auto girder, the influence of friction coefficient on the hot stamping for ultra high strength steel steel was analyzed by FEM simulation, and the influence of different lubrication conditions on the hot stamping for ultra high strength steel sheet was conducted by the hot stamping experiments. The results show that with the increasing of friction coefficient, the thickness of hot stamping parts becomes thinner, and the effective strain value becomes bigger. The hot stamping parts without lubricant have scratches, cracks and serious oxidation, and the hot stamping parts with graphite lubricant have scratches and cracks. However, the forming quality of hot stamping parts with glass lubricant is better, and the thickness of hot stamping parts increases gradually under three kinds of lubricant conditions. Thus, the glass lubricant is beneficial to the improvement of friction condition and oxidation resistance in the hot stamping process. Furthermore, the lubricant condition has little influence on the microstructure and mechanical properties of hot stamping parts, and the tensile strength of hot stamping parts is up to 1460 MPa and the microhardness is above 460 HV.  

基金项目:
国家自然科学基金资助项目(51205116);湖北省自然科学基金资助项目(2017CFB587);湖北省高等学校优秀中青年科技创新团队项目(T201518)
作者简介:
作者简介:李兵(1981-),男,硕士,副教授 Email:libing42158823@163.com
参考文献:

 
[1]徐伟力,管曙荣,艾健,等. 钢板热冲压新技术介绍
[J]. 塑性工程学报,2009,16(4):39-43.


Xu W L,Guang S R,Ai J,et al. Introduction of sheet metal hotforming
[J]. Journal of Plasticity Engineering,2009,16(4):39-43.


[2]杨洪林,张深根,洪继要,等. 22MnB5热冲压钢的研究进展
[J]. 锻压技术,2014,39(1):1-5,10.

Yang H L,Zhang S G,Hong J Y,et al. Development research on 22MnB5 hot stamping steel
[J]. Forging & Stamping Technology,2014,39(1):1-5,10.


[3]李芳华,李兵.汽车覆盖件模具设计
[M].北京:机械工业出版社,2017.

Li F H,Li B. Design of Automobile Panel Die
[M].Beijing: China Machine Press,2017.


[4]史栋勇. 高强钢热冲压成形性及微观力学性能数值预测
[D].大连:大连理工大学,2015.

Shi D Y. Numerical Prediction of Formability and Microstructural Mechanical Properties in Hot Stamping of High Strength Steel
[D].Dalian: Dalian University of Technology,2015.


[5]巩子天纵. 汽车超高强钢热冲压工艺影响因素及试验研究
[D].合肥:合肥工业大学,2014.

Gong Z T Z. Research on Effect Factors and Experiment of Automotive UltraHigh Strength Steel Hot Stamping Process
[D]. Hefei: Hefei University of Technology,2014. 


[6]王荣吉,冯晓欣,张立强,等. 基于数值模拟的U形件热冲压工艺参数研究
[J]. 锻压技术,2014,39(5):29-36.

Wang R J,Feng X X,Zhang L Q,et al. Investigation for process parameters of Ushaped part hot stamping based on numerical simulation
[J]. Forging & Stamping Technology,2014,39(5):29-36.


[7]黄炳林. 热成形模具磨损行为数值分析及模具寿命预测
[D].长春:吉林大学,2014.

Huang B L. Numerical Investigation on Wear Behavior of Hot Stamping Die and Predication of the Die Life
[D]. Changchun: Jilin University,2014.  


[8]田晓薇. 超高强钢板热冲压成形过程的摩擦行为研究
[D].武汉:华中科技大学,2011.

Tian X W. Investigation on the Friction Behavior in the Hot Stamping of Ultra High Strength Steel
[D]. Wuhan: Huazhong University of Science and Technology,2011. 


[9]范广宏,任明伟,周永松. 超高强度钢板热冲压用多功能防护涂料的应用研究
[J]. 锻压技术,2010,35(6):95-98.

Fan G H,Ren M W,Zhou Y S. Study on multifunctional protective coating application for hot stamping of ultrahigh strength steel
[J]. Forging & Stamping Technology,2010,35(6):95-98.


[10]李兵,张春,王敏,等.预成形件对超高强钢板热冲压减薄率的影响
[J].锻压技术,2017,42(7):30-35.

Li B,Zhang C,Wang M,et al. Effect of preformed parts on the thinning rate of hot stamping with ultra high strength steel sheet
[J]. Forging & Stamping Technology,2017,42(7):30-35.


[11]苏曦,陈泽中. 高强度钢B1500HS高温条件下本构方程及其流变行为
[J]. 塑性工程学报,2016,23(1):84-88,130.

Su X,Chen Z Z. Constitutive equation and rheological behavior of high strength steel B1500HS at high temperature
[J]. Journal of Plasticity Engineering,2016,23(1):84-88,130.


[12]孟丽芬,胡成亮,赵震.金属塑性成形中摩擦模型的研究进展
[J].模具工业,2014,40(4):1-7.

Meng L F,Hu C L,Zhao Z. Research progress of friction model in metal plastic forming
[J]. Die & Mould Industry,2014,40(4):1-7.
服务与反馈:
本网站尚未开通全文下载服务】【加入收藏
《锻压技术》编辑部版权所有

中国机械工业联合会主管 北京机电研究所有限公司 中国机械工程学会塑性工程分会主办
联系地址:北京市海淀区学清路18号 邮编:100083
电话:+86-010-82415085 传真:+86-010-62920652
E-mail: fst@263.net(稿件) dyjsjournal@163.com(广告)
京ICP备07007000号-9