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タイトル: ハイス大ねじの高速荒切り法に関する研究
その他のタイトル: Study on High-Speed Roughing Methods of Large Size Screw Thread of High Speed Steel Material
著者: 熊野, 俊雄 / 寺島, 健一
著者(別表記) : Kumano, Toshio / Terashima, Kenichi
発行日: 1983年 8月
出版者: 長崎大学工学部 / Faculty of Engineering, Nagasaki University
引用: 長崎大学工学部研究報告, 13(21), pp.97-104; 1983
抄録: The most popular tools for generating the gears are hobs, whose materials are the High Speed Steel (HSS) in the many case. Because the HSS contains such the rare components as W, Mo, Co and V, the material cost is expensive. A sequence for manufacturing the hobs consists of (1) hob-thread roughing, (2) flute milling (3) normalizing the body, (4) backing-off hob thread, (5) quenching and tempering and (6) grinding. Thus the sequence is very complicated and the machinability of HSS also is very poor due to the alloy elements above mentioned. Therefore the manufacture cost is higher too. In this paper the cost-down methods are developed in rough threading the large-sized hobs and the availability of these methods are checked by exprimenting with two typical end mills on the backing-off lathe. In order to decrease the rough machining times, the above operations (1) and (4) among the above operations are simultaneously worked on the backing-off lathe. Thus, in case of module 20 hob, the rough threading and backing time 33 hours required in the ordinary way can be shortened up to 24 hours. Through these results, it is cleared that the threading in backing with the tapered surfy end mill is hopeful for decreasing the manufacture prices.
URI: http://hdl.handle.net/10069/24100
ISSN: 02860902 / 18805574
資料タイプ: Departmental Bulletin Paper
原稿種類: publisher
出現コレクション:第13巻 第21号

引用URI : http://hdl.handle.net/10069/24100



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