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The technological and economical pressures in manufacturing industry require an optimization of existing production processes. For this purpose, Thermal elastic-plastic constitutive equations are established to gain insight into the quenching operation of a production system. The finite element model is established to model transient 3-D temperature ad stress fields during quenching of the cone-shaped...
In order to present the characteristics of stress field in pre-stretching thick plate, This paper discusses that both residual stresses of water bath and spraying quenching, after stretching 1.8%, 2.3% and 2.5% respectively, were measured and analyzed based on the analysis of the elastic-plastic constitutive relationship and simulation model. The author finds that residual stresses, from the surface...
Quenching process is utilized to enhance the hardness and strength of large-scale roller. The main effective parameters on quenching results are the heat transfer coefficient and cooling time. In this paper, the effects of quenching process parameters on the hardened depth and residual stresses were analyzed by using response surface methodology (RSM) based on design of experiments (DOE). A step linearity...
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