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采用硬质合金滚刀作为磨齿前半精加工或代替部分磨齿工序,是70年代发展起来的一项新工艺。与传统的磨齿工艺相比,可节省制造成本20—60％。我所从1981年开始,同有关工厂一起开展了硬质合金滚刀加工淬硬齿轮的试验研究工作,在实际应用中已取得了成效。 机床行业的应用情况 为了减少当前机床行业磨齿工序的压力,根据机械工业部机床工具总局的安排,我所与北京第二机床厂、昆明铣床厂等单位合作,开展了这项工艺的试验研究。初步使用表明,对于模数2.5—4毫米的齿轮,淬硬后用硬质合金滚刀滚齿,精度可达:
The use of carbide hob as a semi-finishing before grinding or instead of part grinding process is a new process developed in the 70’s. Compared with the traditional grinding process, manufacturing costs can be saved by 20-60%. Since 1981, we have carried out the experimental research on hardened gears for carbide hob machining with related factories, and have achieved success in practical application. Application of Machine Tool Industry In order to reduce the pressure on the current grinding process of the machine tool industry, according to the arrangement of General Administration of Machine Tool and Tooling of the Ministry of Machinery Industry, we conducted a pilot study on this process in cooperation with Beijing No. 2 Machine Tool Plant and Kunming Milling Machine Factory. . Initial use shows that for gears with a modulus of 2.5 to 4 mm, hobbing with carbide hobs after hardened gives a precision of up to: