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摘要
A two-dimension model was established based on the experimental results of the laminar plasma remelting processing on the stainless steel. The main purpose is to determine the proper processing conditions of material surface heat treatment through the finite element simulation. The related results include the determination of the variations of the temperature, the temperature gradients and the cooling rates of the pool substances with time. A criterion based on the concept of the equivalent temperature area density (ETAD) is established to predict the proper processing conditions for the situation of the stainless steel remelting. Theoretically, the method can be used to determine the optimum processing condition of heat treatments and equally generalized to the cladding treatment situations of both the plasma processing and the laser technology. The simulating results show that the appropriate heating distances should be in the region of 9~13 mm for the laminar plasma processing, which is in agreement with the experimental observation.
- 出版日期2006
- 单位中国科学院力学研究所
