High frequency heat treatment material and method of manufacturing gear using the same

摘要

The present invention relates to a high frequency heat treatment material and a method for manufacturing a gear using the same. For this purpose, according to an exemplary embodiment of the present invention, the high frequency heat treatment material is made of 0.50 to 0.55 wt% of carbon (C), 0.30 to 0.50 wt% of silicon (Si), 0.35 to 0.55 wt% of manganese (Mn), 0.30 wt% or less of copper (Cu), 0.25 wt% or less of nickel (Ni), 0.25 wt% or less of chromium (Cr), 0.35 to 0.45 wt% of molybdenum (Mo), 0.002 to 0.004 wt% of boron (B), 0.025 to 0.045 wt% of aluminum (Al), and the balance of Fe, and has stable deformation and physical properties equivalent to carburization heat treatment. Therefore, according to the exemplary embodiment of the present invention, it is possible to obtain a gear having high surface strength and hardness by machining a medium carbon steel, which has a stable deformation during a high frequency heat treatment process and physical properties equivalent to carburization heat treatment, to meet gears and then performing high frequency contour heat treatment on the medium carbon steel.