Simulation of temperature distribution and discharge crater of SiCp/Al composites in a single-pulsed arc discharge
نویسندگان
چکیده
SiCp/Al composites are difficult-to-cut materials. In recent years, electrical arc discharge machining has been developed to improve the machinability of these However, there is a big challenge build satisfactory heat transfer model in machining. This not only because material property difference between reinforcement and matrix but also micro-dimension SiC reinforcements. paper established new conduction simulation considering particle-Al interface phase change effects single-pulsed composites. A novel cell geometric was designed firstly. Then, temperature distribution at different depth from workpiece surface analyzed, influence sic volume fraction on field studied, contribution thermal resistance latent were explained. To demonstrate validity numerical model, comparisons verifications employed. Finally, method improving proposed mechanism materials discussed. It found that high prone concentrate layers especially when high, also, fluctuates respectively evaporation point aluminum SiC, SiC-Al less compared heat, etc. The this work improves accuracy observably previous will help acquire detailed removal
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ژورنال
عنوان ژورنال: Chinese Journal of Aeronautics
سال: 2021
ISSN: ['1000-9361', '2588-9230']
DOI: https://doi.org/10.1016/j.cja.2020.05.033