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ERW Tubing and its Characterisation for Hydroformability

机译：ERW油管及其可成型性表征

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Hydroforming of steel tubes is rapidly evolving as a very important manufacturingrnoperation, especially in automotive applications. Perhaps, this is due to the fact that tubularrnhydroformed components exhibit greater strength to weight ratio and lower costs comparedrnwith conventional stamped and welded assemblies. The characteristics of the input tubernare very critical for the success of the hydroforming process. Material properties such asrncomposition, weld type, yield strength, ultimate tensile strength, percent elongation and flowrncharacteristics are the essential parts for material responsiveness to hydroforming. Variousrncustomized test methods are being practiced to assess the materials ability for hydroforming.rnTwo such methods, bulge test and tensile test, are discussed in this paper. ERW tubesrnmade out of three grades of steels are taken for the investigation. Hydroformed ERW tubesrnopportunities in automotive industries are explored in this paper.
机译：钢管的液压成型作为一种非常重要的制造工艺正在迅速发展，特别是在汽车应用中。也许这是由于与传统的冲压和焊接组件相比，管状液压成型部件具有更高的强度重量比和更低的成本。输入管的特性对于液压成型工艺的成功至关重要。材料性能（例如组成，焊接类型，屈服强度，极限抗拉强度，伸长率和流动特性）是材料对液压成形响应能力的重要组成部分。正在实践各种定制测试方法来评估材料的液压成型能力。本文讨论了两种这样的方法，即膨胀测试和拉伸测试。研究使用了三种钢制成的ERW管。本文探讨了在汽车行业中使用液压成型的ERW管的机会。

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