The safety of heavy equipment is directly determined by the quality of heavy-duty sprocket, which is a basic component in transmitting motion and power. However, local overheat of tooth surface, non-homogeneous hardness and microcracking are observed due to the skin effect, corner effect, and annular effect during traditional induction hardening of sprockets with conventional circular coils. Finite-element numerical computation and comparative analysis were carried out for sprocket heating processes between circular coil and profile coil, respectively. The maximum
The safety of heavy equipment is directly determined by the quality of heavy-duty sprocket, which is a basic component in transmitting motion and power. However, local overheat of tooth surface, non-homogeneous hardness and microcracking are observed due to the skin effect, corner effect, and annular effect during traditional induction hardening of sprockets with conventional circular coils. Finite-element numerical computation and comparative analysis were carried out for sprocket heating processes between circular coil and profile coil, respectively. The maximum
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