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一、近年来国内外滚刀发展情况目前,滚齿加工是齿轮加工的主要手段,为提高滚齿效率,滚刀就成为研究的主要对象之一。滚刀的发展趋向表现在以下两个方面。 1.发展新的滚刀材料,提高滚齿速度。六十年代以前,由于普通高速钢的红硬性所限,滚齿切削速度长期停留在30~50米/分。在六十年代以后,由于超硬高速钢的出现,.使滚齿切削速度提高到60~80米/分。它的红硬性及硬度都超过了普通高速钢,而它的机械性能与工艺性又都与
First, in recent years the hob development at home and abroad At present, gear hobbing is the main means of gear processing, hobbing to improve efficiency, hob has become one of the main research object. Hob development trend in the performance of the following two aspects. 1. Develop new hob materials to increase hobbing speed. Before the sixties, because of the hard redness of common high-speed steel, hobbing cutting speed remained at 30 to 50 m / min. After the 1960s, due to the appearance of super-hard high-speed steel, the hobbing cutting speed was raised to 60 ~ 80m / min. Its red hardness and hardness are higher than ordinary high-speed steel, and its mechanical properties and technology are both