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摘要：
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在对汽车后延臂的液压胀形工艺进行了实验研究的基础上 ,针对汽车后延臂的承载情况对其结构提出了改进设计 ,并根据液压胀形工件的结构要求 ,分析了汽车后延臂的成形工艺过程。在给定实验条件下 ,分别考察和研究了液压胀形的主要工艺参数 (如管内压力、轴向进给量及摩擦条件 )对成形过程的影响。研究结果表明 ,文中所提出的工艺设计对汽车后延臂液压胀形技术开发具有重要的应用价值
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An automobile lower arm has been fabricated in a prototype form by hydroforming with the aids of experimental method. According to the loading case of the automobile lower arm, its modified structural design is presented, and the forming process is analyzed to meet the requirement of the hydroforming work-piece structure. Under the given experimental condition, the hydroforming process of automobile lower arm is experimentally studied where the influences of main process parameters are considered, such as the internal hydraulic pressure, the axial feeding, and the tool geometry on the forming performance. The results show that the suggested process design has a potential value to develop the hydroforming technique of producing the automobile lower arm product.
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作者简介：
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参考文献：
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1 SmithJA Hydrostaticformingoftubing producescomplex partAutomation,1963(6):84～89
2 LeiLP ,KimDH ,KangBS Analysisanddesignofhydroformingprocessesbytherigid plasticfiniteelementmethodTwentyEighthNorthAmericanManufacturingResearchConference,Lexington,May2000:45～50
3 DohmannF ,HartlChHydroforming amethodtomanufacturelight weightpartJofMaterProcTech,1996,60:669～676
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