Transactions of Materials and Heat Treatment

Title：Forging process and structural optimization on bidirectional piston of swash plate compressor

Authors： Duan Jingying Fu Changjing Ren Yong Zhao Qingtao Fang Xin

Unit： Shandong Labor Vocational and Technical College Shandong Huichuan Auto Parts Co. Ltd.

KeyWords： swash plate compressor bidirectional piston forging mold forging process Ansys Workbench

ClassificationCode：TG316；TH122

year,vol(issue):pagenumber：2020,45(9):29-34

Abstract：

Forging mold and forging process on bidirectional piston of swash plate compressor were designed, and the force condition of piston in the actual operation of compressor was analyzed. Then, the forging aluminium alloy piston was analyzed by software Ansys Workbench, and according to the numerical simulation results, the structure of piston was optimized by increasing the opening crotch section transition fillet. Finally, the rationality of forging mold and its process was verified by trial production and limit test. The results show that the maximum stress at step of opening crotch in the middle of piston changes from 15.9 MPa to 14.2 MPa after structure optimization, and the stress is reduced by 10.69% to obtain the remarkable effect. Furthermore, after trial production and scheme modification, the forming effect is good, and the mechanical properties meet the requirements of the drawing. Through macrostructure observation, the streamline is uniform, the grain is fine, and there are no metal inclusions, cracks and other defects. Thus, the piston runs well in the installation limit test, which shows that the improved forging mold and its process achieve the expected effect.

Funds：

山东劳动职业技术学院院级教科研项目（2020KJ02）

段晶莹（1979-），女，硕士，副教授 E-mail：duanjingying2008@126.com

Reference：

［1］廖云飞. 斜板式变排量压缩机及其汽车空调制冷系统特性研究
［D］.北京：清华大学，2004.

Liao Y F. Characteristics of Swash Plate Variable Displacement Compressor and Its Automotive Air Conditioning System
［D］. Beijing: Tsinghua University，2004.

［2］吴建华，侯杰，孙春艳，等. 双向斜盘式压缩机活塞有限元应力分析
［J］. 流体机械，2007，35(9):18-19.

Wu J H，Hou J，Sun C Y， et al.Stress analysis on piston of two-side swashplate compressor
［J］. Fluid Machinery, 2007，35(9):18-19.

［3］王玉凤. 4032 铝合金组织及力学性能分析
［D］.哈尔滨:哈尔滨工业大学，2010.

Wang Y F.Study of the Microstructures and Mechanical Properties of 4032 Alloy
［D］.Harbin: Harbin Institute of Technology，2010.

［4］吴斌. 活塞锻造模具设计及成型工艺
［J］. 新技术新工艺，2009，(1):84-85.

Wu B. The design and molding technology of piston forging die
［J］. New Technology & New Process， 2009，(1):84-85.

［5］王以华. 锻模设计技术及实例
［M］. 北京：机械工业出版社，2009.

Wang Y H. Forging Die Design Technology and Examples
［M］. Beijing：China Machine Press，2009.

［6］吴顺达. 我国锻造行业模具与润滑现状及其发展方向
［J］. 模具工业，2011，37(5):5-11.

Wu S D. Status of die and lubrication of forging industry in China and its development trend
［J］. Die & Mould Industry，2011，37(5):5-11.

［7］黄伯云，李成功，石力开，等. 有色金属材料手册
［M］.北京：化学工业出版社，2009.

Huang B Y，Li C G，Shi L K，et al.Nonferrous Materials Manual
［M］.Beijing：Chemical Industry Press，2009.

［8］肖爱武.铝合金活塞模锻件的锻压工艺优化
［J］.轻合金加工技术，2017，45 (1): 35-39.

Xiao A W.Forging process optimization of aluminum alloy piston die forging
［J］.Light Alloy Fabrication Technology，2017，45(1)：35-39.

［9］张超，赵升吨，卢孟康，等. 4032 铝合金活塞的热模锻变形过程有限元分析
［J］.锻压技术，2019，44（11）：1-9.

Zhang C， Zhao S D， Lu M K，et al.Finite element analysis on hot die forging deformation process for 4032 aluminum alloy piston
［J］. Forging ＆ Stamping Technology，2019，44（11）：1-9.

［10］Lee R S, Jou J L . Application of numerical simulation for wear analysis of warm forging die
［J］. Journal of Materials Processing Tech, 2003, 140(1-3):43-48.

［11］车奇楠，周拥军，韩海河，等. 船用发动机铝活塞锻造工艺研究
［J］. 金属加工:热加工，2014，(19):53-55.

Che Q N, Zhou Y J, Han H H，et al. Study on forging process of aluminum piston for marine engine
［J］. Metal Working，2014，(19)：53-55.

［12］齐晓华，魏冠义，张勇.液态模锻工艺对机械活塞低温性能的影响
［J］. 热加工工艺，2018，47（1）：181-184.

Qi X H，Wei G Y，Zhang Y. Influence of liquid die forging process on low temperature performance of mechanical piston
［J］. Hot Working Technology，2018，47（1）：181-184.

［13］刘静安，潘伟津，李萍，等. 铝合金锻件主要缺陷的特征及产生原因及后果
［J］.铝加工，2013，(3): 32-35.

Liu J A，Pan W J，Li P，et al.Characteristics and cause and effect of main defects on aluminum alloy forgings
［J］.Aluminum Processing，2013，(3): 32-35.

［14］史瑱.4032 铝合金高温变形行为及涡旋盘精密模锻数值模拟
［D］.哈尔滨: 哈尔滨工业大学，2010.

Shi Z.High Temperature Deformation Behavior and Numerical Simulation on Precision Die Forging for Scroll of 4032 Aluminum Alloy
［D］.Harbin: Harbin Institute of Technology，2010.

Service：

【This site has not yet opened Download Service】【Add Favorite】