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Self-piercing riveting study in the micro-profile

) Also can be taken by way of lubrication to reduce friction, slowing the fretting damage. Reasonable selection of materials, contact pairs and match fretting failure of mitigation also have a larger role. 6 Conclusion Self piercing riveting technology as the ideal technology for connecting one of lightweight materials,[link widoczny dla zalogowanych], more and more used to connect a class of light metal and plastic materials. In the subject under cyclic stress, micro-rivet connection is extremely easy. From the current field of micro-failure mechanism of fretting and fretting to the mechanism of destruction of both stages, a variety of mitigation techniques such as surface treatment, lubrication and mechanical design and improvement of a great development. Research for the micro-addition to the general methods, in recent years also fretting chart method and energy method to study, these methods can be used in self-piercing riveting micro study. Fretting map can be made self-piercing riveting fretting damage mitigation measures, energy self-piercing riveting method can explain the phenomenon of the experiment and can predict the experimental results. Self-piercing riveting of the fretting damage of which is to come to the mechanism of fretting wear, fretting wear protection proposed measures to better self-piercing riveting technology research and development. References: [1] Huang Chao. Progress Sheet connections [J]. Forging Technology, 2006 (, 4,) :119-122. [2] Wei Zhongshan, Wang Min,[link widoczny dla zalogowanych], Jordan stability, and so on. Fretting fatigue of titanium alloy and its protection [J]. Materials Science and Engineering,[link widoczny dla zalogowanych], (21) :293-297. [3] Zhong-Rong Zhou. LeoVincent. Fretting wear [M]. Beijing: Science Press, 2002. [4] Zhong-Rong Zhou. On fretting wear and fretting fatigue research [J]. China Mechanical Engineering, 2000 (10) :1146-1150. [5] Huang Kun Peng, Liu defend, Zhu Wu Man, et al. TiA1Zr fretting wear properties of alloys [J]. Lubrication Engineering, 2006 (4) :10-15. [6] Liu Road, New Jiawen. Fretting fatigue factors and fretting fatigue behavior of titanium alloy [J]. Air University, 2001 (22,) :454-457. [7] Peixian Jiang, Qi-Hua Wang, Wang Haijun. Micro-graph and method of energy research at the micro application [J]. Lubrication Engineering, 2004 (4) :97-100. [8] Y. K. Chen, L. Han, A. Chrysanthou, J. M. O'Sullivan. Frettingwearinself-pxercingrivetedaluminiumalloysheet [J]. Wear ,2003,255:1,463-147O. [9] L. hart, K. W. Young, Theeffectofpre-strainingontheraechanicalbe-haviourofself-piercingrivetedalurrfiniumalloysheet [J]. MaterialandDesign, 2006 (27) :1108-1113. About the author: Kang Shaowei (1983 a), East China Jiaotong University, Master in Electrical and Mechanical Engineering, the main research CAD / CAM, material processing, e-mail: kangshaowei @ so-hu. eom. Received date :2008-03-05 generation of electric haulage shearers Jixi Coal Mine Machinery Factory and Yanzhou Mining (Group) Co., Ltd. jointly developed a WD-type electric traction MG400/920 Shearer is a new generation of horizontal High power piezoelectric Shearer rose arrangement can be a dangerous gas coal mine gas or use. The machine uses a computer control technology, electric control system for the on-board type, the overall layout for the multi-motor cross, no bay, no off-axis,[link widoczny dla zalogowanych], no bevel drive. Machine consists of seven most of the (left and right traction department, left and right cutting unit, left and right walking tank, electric control department), the three major systems (electrical control system, hydraulic system, spray cooling system) and its components (support component, towing devices, supporting rollers, coal loading plate, hinged shaft components, coupling components), spare parts, tubing, pipes, cables and other components. Left and right with the electronically controlled traction respectively to the Ministry of the left and right side of dry docking, left and right walking tank were fixed in the left and right of the haulage of the box, this 5-part of Shearer's body parts . Department of the Ministry of electronically controlled traction surface with a cylindrical pin docking position, bolt the joint. Left and right arm cutting unit as a whole structure, namely the cutting motor, reducer located in the arm,[link widoczny dla zalogowanych], the share of a shell with high strength and rigidity. Jian-Feng Li a feed 9
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