Application of Electro-Magnetic Heat Effect on Crack Arrest in Remanufacturing Blank

摘要

Remanufacturing is the only way of sustainable development of equipment manufacturing industry. In order to have a prolonged service life of a remanufactured blank with crack, it is vital to prevent propagation of the crack. This also ensures the effectiveness of the manufacturing processes to follow. In this paper, the theory of crack arrest through the heat effect of electromagnetic field is presented. And the effect of the crack arrest is analyzed from three aspects: stress concentration, residual stress, and work of crack formation. Through a calculation example, the distribution of temperature field in the specimen is provided.