齿轮同时硬化用机床及附属装置 齿轮外线的高周波同时硬化,在苏联已广泛地采用。采用这种硬化,能使齿轮外缘的硬化层厚度均匀, 而心部有韧性(没有硬化)。从而保证了高周波电流硬化齿轮的高度运转质量。根据许多试验的结果,认为由下式求出的频率最为合理2能使齿轮外缘的硬化层厚 At the same time, the gear hardens at the same time by the high frequency of the outer circumference of the machine tool and the attachment gear, and has been widely used in the Soviet Union. With this type of hardening, the thickness of the hardened layer at the outer edge of the gear is uniform and the core is tough (not hardened). Thus ensuring the high frequency current hardened gear height operation quality. According to the results of many experiments, it is considered that the frequency found by the following equation is the most reasonable 2, and the hardened layer thickness at the outer periphery of the gear