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在重型车床上对直径500mm以上的大型轴类零件进行割槽(深割或割断),以前一般都采用大型焊接割刀,刀具损耗大、生产效率低。近两年来,我们研制成功大型机械夹固割刀,现已正常用于生产。在切割汽轮机转子等零件的深槽时,生产效率提高50％以上。该刀具具有结构简单,制造、使用方便等优点,适宜在重型机械行业推广使用。现对刀具的结构、角度特点和切屑用量作简单介绍。一、结构该刀具采用楔切式压紧结构(见附图)。(1)刀片:采用YT5材料,我厂是用硬质合金立装刀片改制。先在钼丝切割机上初割成形,然后夹紧在专用磨刀夹具上,在工具磨床和磨刀机上刃磨成
In heavy lathes on the diameter of more than 500mm large shaft parts grooving (deep cutting or cutting), before the general use of large welding cutter, tool loss, low productivity. In the past two years, we successfully developed a large mechanical clamping cutter, which is now normally used in production. When cutting deep grooves such as steam turbine rotors, production efficiency is increased by more than 50%. The cutter has the advantages of simple structure, easy manufacture and convenient use, and is suitable for promotion and use in the heavy machinery industry. Now the structure of the tool, the angle characteristics and the amount of chips for a brief introduction. First, the structure of the cutter using wedge-type compression structure (see photo). (1) blade: the use of YT5 material, our factory is using carbide inserts vertical blade restructuring. First in the molybdenum wire cutting machine on the first cut shape, and then clamped in a special sharpening jig, sharpened on the tool grinder and sharpener