Influence of welding quality on stability of SUS304 tube-compression by viscous pressure forming
Keywords:
tube-compression, stability, viscous pressure forming, weld joint qualityAbstract
One of the major problems affecting viscous pressure forming (VPF) is the stability of tube-compression, whereas the main defect influencing the stability of welded tube-compression is the quality of welded joints. This article utilizes the finite element method to analyze the influence of weld joint strength and width on stability of SUS304 tube-compression by VPF. Meanwhile, SUS304 welded tube-blanks with different weld joint strength and width are obtained by plasma welding, TIG-Tungsten Inert Gas welding, laser welding and high frequency welding and then the stability test by VPF is carried out. The results showed that the weld joint strength and width affect the stability of tube-compression. The system and process of controlling weld joint width can improve the stability of tube-blank preferably relative to weld joint strength.Downloads
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