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美国Fellowes 公司生产的插齿刀,在1964年及1981年由一机部成都工具研究所组织进行的国内外播齿刀质量对比试验中,切削性能名列第一。其原料为M2高速纲,热处理硬度HRC64.5—66.5,在同一个插齿刀上硬度分布均匀。表面经过化学表面处理,颜色为暗灰色,不均匀。显微硬度测定,表层硬度较高,达HV1055,表面处理层深0.03毫米,推测为液体氮化处理。但抗蚀性差,用5%硫酸铜溶液滴测后,2分钟即出现铜离子沉淀。在切削试验中,Fellows 公司插齿刀切削性能较好,抽试3件磨损情况基本一致,比同时试验的英国Sykes,酋德Klingelnberg、和国内两名厂插齿刀均好。此外还有一个特点:即除Fellows 插齿刀外,其余各厂的插齿刀在刀齿的侧刃上均有挤伤的白色光带,这可能与Fellows 插齿刀表面处理后的高表面硬度有关。就前刃面刃磨质量而言,Fellows 插齿刀前面与齿形光洁度均高于其他各厂产品。齿面烧伤及退火现象少。英国《Tooling & Production》1981,Ⅴ47,№2中,“齿轮制造技术基础”第三部份为Fellows 公司Carl S Rice 氏写的,“插齿工艺和科学”。兹将其中有关插齿刀材料、热处理、表面处理和刃磨诸节译出。因它与国内各厂现行的插齿刀制造工艺有不相同之点,可作产品赶超之借鉴。本文中介绍的情况与我所实际试验记录完全相符。对Fellows 厂插齿刀前面刃磨光洁度高的向题,也可在本文中找到答案。
The shaper cutter produced by Fellowes Company in the United States ranked the first in cutting quality comparison test at home and abroad conducted by Chengdu Machine Tool Research Institute of a machine department in 1964 and 1981. The material for the M2 high-speed program, heat treatment hardness HRC64.5-66.5, in the same shaper cutter hardness distribution. Surface after chemical surface treatment, dark gray color, uneven. Microhardness determination, higher surface hardness, up to HV1055, surface treatment layer depth of 0.03 mm, presumed to be liquid nitriding. However, poor corrosion resistance, with 5% copper sulfate solution drop test, 2 minutes copper precipitation occurs. In the cutting test, Fellows’s gear shaper cutting performance is better, the test three pieces of wear is basically the same, than the simultaneous test of the United Kingdom Sykes, Klingelnberg Majors, and two factory gear shaper are good. In addition there is a feature: In addition to Fellows gear shaper, the rest of the factory gear shaper in the tooth edge of the knife have white light squeezed band, which may be Fellows gear shaper surface treatment after the high surface Hardness related. In terms of the quality of the sharpening of the front face, Fellows gear shaper front and toothed finish are higher than the other factory products. Tooth surface burn and annealing phenomenon. The third part of “Tool Manufacturing & Technology Foundation” written by Carl S Rice, Fellows, “Gear Shaping and Science”, Tool & Production 1981, V47, No.2. It will be inserted on the gear cutter material, heat treatment, surface treatment and sharpening sections translated. Because it is with the existing factory gear shaper cutter manufacturing process is not the same point, can be used for product catch-up reference. This article describes the situation and my actual test records exactly. Fellows factory gear sharpener in front of sharpening smoothness of the problem, you can find the answer in this article.