斜盘式汽车空调压缩机双头活塞成形坯料研究  

Blanks of Double-Headed Piston Forming for Swash Plate Type Automobile Air-Conditioning Compressor

作　　者：徐洪磊 闫中原 薛世博 田文春 石文超[1] 李萍[1] XU Hong-lei;YAN Zhong-yuan;XUE Shi-bo;TIAN Wen-chun;SHI Wen-chao;LI Ping(School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学材料科学与工程学院,合肥230009

出　　处：《精密成形工程》2022年第2期27-32,共6页Journal of Netshape Forming Engineering

基　　金：中央高校基本科研业务费专项(JZ2020HGQB0220);安徽省重点研究和开发计划(面上攻关)(201904a05020062)。

摘　　要：目的研究坯料形状对汽车空调压缩机双头活塞锻造成形质量的影响,以期提高材料利用率,获得成形质量良好的零件。方法基于有限元数值模拟及物理试验,对不同坯料形状的成形结果进行对比研究,分析坯料形状对成形过程中金属流动行为和成形质量的影响。结果模拟表明成形零件的A和B区域时,载荷缓慢上升,成形零件C区域时载荷急剧升高,圆柱成形载荷为230 t,异形坯成形载荷为180 t。异形坯向零件两端转移了更多的金属,使型腔A和B区域飞边槽内金属体积少于圆柱坯。物理试验表明异形坯成形结果良好。结论通过合理减小坯料长度和宽度、增加坯料高度,使材料利用率提高了7.91%,成形载荷降低了21.7%。The work aims to study the effects of different billet shapes on the forging results of double-ended pistons for automotive air-conditioning compressors to improve material utilization and obtain parts with good forming quality. Based on finite element numerical simulations and physical tests, a comparative study of the forming results with different billet shapes was carried out to analyze the effects of billet shapes on the metal flow behavior and forming quality during the forming process.The simulation results showed that the load rose slowly when forming areas A and B of parts, and rose sharply when forming area C of parts. The cylindrical forming load was 230 t and the shaped billet forming load was 180 t. The shaped billet transferred more metal to the ends of the part, resulting in less metal volume in the fly grooves of cavities A and B than the cylindrical billet. The physical tests showed good results of shaped billet forming. Therefore, by reasonably reducing the length and width of the blank and increasing the height of the blank, the material utilization rate is increased by 7.91% and the forming load is reduced by 21.7%.

关 键 词：斜盘式空调压缩机活塞 锻造工艺 有限元数值模拟 坯料优化 

分 类 号：TG316.3[金属学及工艺—金属压力加工]