Forming process of heat transfer plate for micro-channel heat exchanger core using selective laser melting
Selective laser melting has been introduced into the production of core plate of micro-channel heat exchanger to solve the problem of restricted cross-section topology and environmental pollution in traditional processes.Having examined the shape of the plate,the properties of 316L stainless steel and the main param-eters of the process,the Print3D model of the Inspire software was used to simulate the entire forming process in order to learn the distribution and change of the temperature,the Mises stress and the plastic strain.The re-sults show that the temperature of the fused field fluctuated violently with the present and absence of laser,and due to the cumulative effect of laser energy in the fabricated part,the temperature in latter formed region is much higher than the previous one.The Mises stress and plastic strain are closely related to the structure and temperature field of the plate.The complex structure of the runner makes larger Mises stress and plastic strain;and the higher temperature cause fully melted powder,which release the Mises stress and plastic strain.
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