锻压技术

板料成形的高分子薄膜润滑浅析

英文标题：Analysis on polymer film lubrication in the sheet metal forming

作者：邓明朱祥刘君仪吕琳

单位：重庆理工大学

分类号：

出版年,卷(期):页码：2015,40(7):103-106

摘要：

本文归纳了高分子薄膜的润滑特点，分别从成形时高分子薄膜与高强钢的接触特点、高分子薄膜润滑剂的接触状态和润滑特征、薄膜在板料拉深成形中的形态变化3方面分析了聚四氟乙烯高分子薄膜的润滑机理，通过摩擦磨损实验研究了薄膜的承载能力。结果表明：润滑过程中，在高分子薄膜发生粘着磨损的区域出现撕裂，在无粘着磨损区域，薄膜随坯料的变形而变形，始终覆盖在其表面；高分子薄膜作拉深润滑剂时，会形成大量的磨屑，磨屑会粘附在坯料上随着工艺进行起润滑作用；随着薄膜厚度增加，摩擦系数增加，薄膜承载能力增加，但薄膜太厚或太薄，都会导致摩擦力增大，影响零件成形质量。

The characteristics of polymer film lubrication were summarized, and the lubricating mechanism of PTFE polymer films was analyzed in three aspects: contact characteristics of polymer film and high strength steel in the sheet forming, contact state and lubrication characteristics of polymer film lubricants and morphological changes of film in sheet metal deep drawing. Furthermore, carrying capacity of film was studied through the friction and wear experiments. The results show that tear appears in the adhesive wear area during lubrication process, and in the non-adhesive wear area，the polymer film covers on the surface of billet all the time and deforms along with the deformation of billet. When polymer film is used as deep drawing lubricant, a large number of debris which attach to the billet for lubrication during the process are produced. When the film thickness increases, both the friction coefficient and the carrying capacity of the film also increase. However, if the film is too thick or too thin, it will lead to big friction and affect forming quality of the parts.

基金项目：

重庆市应用开发类资助项目(cstc2013yykfc60004，cstc2014yykfA60002)

邓明（1960-），男，硕士，教授

参考文献：

[1]庞朝利.金属塑料自润滑复合材料的制备及其摩擦学性能研究[D].苏州：江苏大学，2010.

Pang C L. Study on Preparation and Tribological Properties of Self-lubricating Metallic Plastic Composites [D]. Suzhou：Jiangsu University, 2010.

[2］陈战，王家序，秦大同.超高分子量聚乙烯复合材料的摩擦磨损性能[J].重庆大学学报:自然科学版，2001,24（5）:135-138.

Chen Z, Wang J X, Qin D T. Study on friction and wear performance of ultra high molecular weight polyethylene plastic composite material [J]. Journal of Chongqing University:Natural Science Edition, 2001,24 (5): 135-138.

[3]刘功德.超高分子量聚乙烯的加工与高性能化研究[D].成都：四川大学，2003.

Liu G D. A Study on Processing and Enhancing Properties of Ultra High Molecular Weight Polyethylene[D]. Chengdu: Sichuan University, 2003.

[4]谢东.超高分子量聚乙烯的表面改性及其耐磨性能研究[D].成都：西南交通大学，2011.

Xie D. Surface Modification of High Molecular Weight Polyethylene and Its Wear-resistance[D]. Chengdu: Southwest Jiaotong University, 2011.

[5]梅心涛.挤出成型制备重结晶碳化硅热端材料的研究[D].武汉：武汉理工大学，2007.

Mei X T. Research of Re-crystallization Silicon Carbide Heating Element by Extrusion Molding[D]. Wuhan: Wuhan University of Technology, 2007.

[6]凡玉.聚四氟乙烯基超声电机摩擦材料研究[D].南京:南京航空航天大学，2012.

Fan Y. Research on PTFE-Based Friction Materials of Ultrasonic Motors[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2012.

[7]熊文.WS_2高温锂基润滑脂的研制及其摩擦学性能的研究[D].长沙：中南大学，2004.

Xiong W. Study on Preparation and Tribological Properties of WS_2 High Temperature Lithium Base Grease[D]. Changsha: Central South University, 2004.

[8]肖大雪.多孔自润滑烧结体介层力学特性研究[D].武汉：武汉理工大学，2007.

Xiao D X. Study on the Mesoscopoic Surface Mechanical Properties of the Porous Self-lubricating Sintered Material[D]. Wuhan: Wuhan University of Technology, 2007.

[9]施梅勤.PTFE基金属复合材料的摩擦磨损性能研究[D].杭州：浙江工业大学,2005.

Shi M Q.The Friction and Wear Properties of PTFE-Based Metal Composites[D]. Hangzhou: Zhejiang University of Technology, 2005.

[10]孙斓珲.聚合物基纳米复合材料及织物增强纳米复合材料的制备及性能研究[D].上海：复旦大学,2010.

Sun L H. Preparation and Properties of Polymer Based Nanocomposites and Fabric Nanocomposites [D].Shanghai: Fudan University, 2010.

服务与反馈：

【文章下载】【加入收藏】