锻压技术

发动机连杆衬套毛坯温挤压工艺研究及模具设计

英文标题：Research and die design on warm extrusion technology for engine connecting rod bushing

作者：杨华龙樊文欣曹存存叶文波

单位：中北大学

分类号：TG376

出版年,卷(期):页码：2016,41(8):79-82

摘要：

以锡青铜连杆衬套毛坯为研究对象，依据连杆衬套毛坯温挤压成形原理和加工成形的特点，选择了反挤压作为温挤压成形方式，理论分析计算了预热后毛坯和挤压完成后筒形件的尺寸，为温挤压模具的设计提供理论依据。通过对连杆衬套毛坯温挤压成形难点的分析和研究，制定出了一套合理的连杆衬套温挤压成形方案。重点对发动机连杆衬套毛坯的温挤压成形工艺进行了研究，通过合理的控制毛坯预热温度、模具预热温度、温挤压润滑等条件能够加工出性能优越的成形工件。并以此为依据设计出带有保温控制系统、自动顶料装置的双层组合预应力挤压模具。

For the tin bronze bushing of connecting rod bushing blank, the anti-extrusion forming method was chosen according to the forming principle and forming characteristics of connecting rod bushing warm extrusion, and the blank after preheating and the size of the extrusion cylinder were analyzed and calculated to provide the theoretical basis for the design of warm extrusion die. Through analysis and research on the difficulties of forming connecting rod bushing blank in warm extrusion, a reasonable set of forming method was given. Furthermore, the warm extrusion forming process was focused on the engine connecting rod bushing blank, and workpiece with the superior performance could be produced through reasonable control of the blank preheating temperature, die preheating temperature, warm extrusion lubrication and so on. Finally, a double-combined prestressed extrusion die with heat preservation control system and automatic ejection device was obtained.

基金项目：

山西省自然科学基金资助项目（2012011023-2）

杨华龙（1989-），男，硕士研究生樊文欣（1964-），男，博士，教授

参考文献：

［1］陈长江，王渠东，尹冬第，等.内燃机活塞材料的研究进展 [J].材料导报，2009，23(15)：62-65.Chen C J, Wang Q D, Yin D D, et al. Research process in piston materials of combustion engine [J]. Materials Review, 2009, 23(15):62-65.
［2］程人杰，樊文欣，王东娇.车用发动机连杆衬套毛坯温挤工艺设计[J].热加工工艺，2009，38(21)：162-164.Cheng R J, Fan W X, Wang D J. Design of warm extrusion process for roughcast of engine connecting rod sleeve [J]. Hot Working Technology, 2009, 38(21):162-164.
［3］张安民.挤压温度对温挤压模具载荷和应力的影响研究 [J].锻压技术，2014，39(7)：106-112. Zhang A M. Influence research of extrusion temperature on warm extrusion die load and stress [J].Forging & Stamping Technology, 2014，39(7):106-112.
［4］王嘉.杯形件温挤成形工艺研究 [J].热加工工艺，2010,39(21)：104-106.Wang J. Study on warm extrusion forming process for cup-shaped parts [J]. Hot Working Technology, 2010, 39(21):104-106.
［5］赵震，陈军，吴公明.冷温热挤压技术 [M].北京：电子工业出版社，2008.Zhao Z, Chen J, Wu G M. Cold and Warm Extrusion Technology [M]. Beijing: Publishing House of Electronics Industry, 2008.
［6］吴诗悙.温挤技术[M].北京：国防工业出版社，1979.Wu S D. Warm Extrusion Technology [M]. Beijing: National Defense Industry Press, 1979.
［7］夏巨谌.金属材料精密塑性加工方法 [M].北京：国防工业出版社，2007.Xia J C. Metal Material Precise Plasticity Processing Method [M]. Beijing: National Defense Industry Press, 2007.
［8］杨立权，吕青青，汪希奎，等.发动机活塞头温挤过程数值模拟研究[J].热加工工艺，2013，42(5)：84-87.Yang L Q, Lv Q Q, Wang X K, et al. Numerical simulation on warm extrusion process of engine piston head [J]. Hot Working Technology, 2013, 42(5):84-87.
［9］张质良.温塑成形技术[M].上海：上海科学技术文献出版社，1986.Zhang Z L. Temperature Plastic Forming Technology [M]. Shanghai: Shanghai Science and Technology Literature Publishing House, 1986.
［10］徐健，庞学慧，张治民.水基润滑剂在温挤成形中的应用 [J].锻压技术，2015，40(1)：104-107.Xu J, Pang X H, Zhang Z M. Application of water-based lubricant in warm extrusion forming [J]. Forging & Stamping Technology, 2015, 40(1):104-107.
［11］周耀华，张广林.金属加工润滑剂[M].北京：中国石化出版社，1997.Zhou Y H, Zhang G L. Metal Processing Lubricants [M]. Beijing: China Petrochemical Press, 1997.

服务与反馈：

【文章下载】【加入收藏】