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冷拉和冷挤压棒材的应用范围很广泛。经冷挤压或冷拉加工后,棒材的残余应力对其性能有很大的影响。为了测定模具角度和缩径率变化与这两种棒材残余应力之间的关系,英国Salford大学Civil工程系利用中子
Cold-drawn and cold-extruded bars have a wide range of applications. After cold extrusion or cold drawing, the residual stress of the bar has a great impact on its performance. In order to determine the relationship between the mold angle and the reduction of the diameter and the residual stress between the two bars, the Civil Engineering Department at Salford University in the United Kingdom utilized neutron