【摘 要】
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The linear friction welding process of Ti6Al4V was modeled and computed for obtaining the residual stresses.Temperature,stress and strain fields were simulated,
【机 构】
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Beijing Aeronautical Manufacturing Technology Research Institute
论文部分内容阅读
The linear friction welding process of Ti6Al4V was modeled and computed for obtaining the residual stresses.Temperature,stress and strain fields were simulated,based on which,the residual stresses were also calculated.Simulated results showed that the longitudinal residual stresses were tensile stresses at the bonding interface,and decreased rapidly with the increase of the distance from the bonding interface until turned into compressive stresses.The compressive stresses decreased slowly as the distance increased,and approached to zero finally.The distribution of the transverse residual stresses was similar to that of the longitudinal residual stresses,but showed much smaller values.The residual stresses in one linear friction weld were measured by an X-ray diffractometer. The average value of errors between computed and measured results was 14.5％.
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