|
摘要：
|
|
为提高冲压模具成形速度，研究了用于超高速冲压（UHSS）平台成形母端子PIN和BOX部位冲压模具的滑动夹持成形工位。发现在模具的成形期间，成形滑块表面在半径接触点开始表现出磨损，然后向下产生较长的磨损，分析了滑动表面的几何形状及造成磨损的主要因素，成形滑块在成形期间磨损的主要形式是粘着磨损和分层磨损，夹持块的几何形状和滑动表面的角度是造成磨损的重要原因。对滑动夹持成形工位进行了重新设计，对线性驱动和从动轮廓进行了改进，从开始到结束都采用面滑动，同时原始的滑动面的角度设计变小，减轻了磨损和旋转问题，增加了工位的可调节。
|
|
In order to improve the forming speed of stamping die, the sliding clamping forming station of the stamping die used in the ultra-high-speed stamping (UHSS) platform to form PIN and BOX female terminals were studied. It was found that the surface of forming slider began to show wear at the radius contact points during the forming process and produced long wear downward. Then, the geometry shape of sliding surface and the main factors causing wear were analyzed, and the adhesive wear and the layered wear were the main forms during the forming process of forming slider. However, the geometry shape of clamping block and the angle of sliding surface were the important causes of wear. Furthermore, the sliding clamping forming station was redesigned, and the linear drive and the driven contour were improved. Thus, the face sliding from the beginning to the end was adopted, at the same time, the original angle design of the sliding surface became smaller to reduce the wear and rotation problems and increase the adjustable position.
|
|
基金项目：
|
|
国家自然科学基金资助项目（51165021）；江苏省高校优秀科技创新团队“智能制造装备设计及工程应用”（苏教科函（2019）7号）
|
|
作者简介：
|
|
吴斌（1972-），男，硕士，副教授，E-mail：wub@wxit.edu.cn
|
|
参考文献：
|
[1]Bariani P F, Bruschi S, Ghiottia A, et al. Testing formability in the hot stamping of HSS [J]. Manufacturing Technology, 2008, 57(1): 265-268.
[2]Nargess Sha, Hmanesh Bank. Material advantages [J]. Automotive Engineer, 2003, 28(9): 38-40.
[3]Bunk W G J. Alumium RS metallurgy[J]. Materials Science and Engineering A， 1991, 134:1087-1097.
[4]马高山, 张颂阳. 变形铝镁合金温成形技术研究和发展现状[J]. 热加工工艺, 2010,39(11): 23-27.
Ma G S, Zhang S Y. Research and development status on warm forming of Al-Mg wrought alloys[J]. Hot Working Technology, 2010, 39(11): 23-27.
[5]Naderi M, Uthaisangsuk V, Prahl U, et al. A numerical and experimental investigation into hot stamping of boron alloyed heat treated steels [J]. Steel Research International, 2008, 79(2): 77-84.
[6]Cavaliere P. Hot and warm forming of 2618 aluminium alloy[J]. Journal of Light Metals, 2002, 2(4): 247-252.
[7]Geiger M, Merklein M, Hoff C. Basic investigations on the hot stamping steel 22MnB5 [J]. Advanced Materials Research, 2005, (6-8):795-802.
[8]Hyunwoo So, Hartnut Hoffmann. Design of hot stamping tools and blanking strategies of ultra high strength steels [J]. Springer Proceedings in Physics，2008,124:315-325.
[9]Mori K, Maki S, Tanaka Y. Warm and hot stamping of ultra high tensile strength steel sheets using resistance heating[J]. CIRP Annals-Manufacturing Technology, 2005, 54(1): 209-212.
[10]Akira Y, Jun Y. A novel approach to determine the kinetics for dynamic recrystallization by using the flow curve[J]. Journal of Materials Processing Technology, 2004, 151(1-3):33-38.
[11]李兵,王敏,张春,等. 模具摩擦及润滑条件对超高强钢板热冲压成形的影响[J]. 锻压技术, 2018, 43(5): 96-102.
Li B, Wang M, Zhang C, et al. Influence of friction and lubrication conditions in the die on hot stamping for ultra high strength steel sheet[J]. Forging & Stamping Technology, 2018, 43(5): 96-102.
[12]姚安佑. 磨粒对摩擦过程的影响[J]. 武汉理工大学学报, 1982, 4(4):445-455.
Yao A Y. Effect of abrasive grit on the process of friction [J]. Journal of Wuhan University of Technology, 1982, 4(4):445-455.
[13]顾则鸣, 党鸿辛. 磨损机理中的分层理论及其若干应用[J]. 摩擦学学报, 1982, 2(1): 1-5.
Gu Z M, Dang H X. Layering theory in wear mechanism and its applications [J]. Tribology, 1982, 2(1): 1-5.
[14]周荣, 邢建东, 蒋业华. WC／铁基表面复合材料抗冲蚀磨损性能研究[A]. 第七届全国摩擦学大会会议论文集（一）[C]. 兰州，2002.
Zhou R, Xing J D, Jiang Y H. Study on erosion and wear resistance of WC/ Fe based surface composites[A]. Proceedings of the 7th National Tribology Congress（1） [C]. Lanzhou, 2002.
|
|
服务与反馈：
|
|
【本网站尚未开通全文下载服务】【加入收藏】
|
|
|
|
