[특허]Manufacturing method for high-speed tool steel gear cutting tool

Manufacturing method for high-speed tool steel gear cutting tool 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C21D-006/04
출원번호	US-0458228 (2003-06-11)
우선권정보	JP-2000-332675(2000-10-31); JP-2001-126009(2001-04-24)
발명자 / 주소	Yamada,Yasuyuki Ichimiya,Natsuki Maeda,Koichi Tanaka,Yusuke Tanaka,Kazuaki
출원인 / 주소	Mitsubishi Materials Kobe Tools Corporation
대리인 / 주소	Oblon, Spivak, McClelland, Maier &
인용정보	피인용 횟수 : 0 인용 특허 : 21

초록 ▼

The invention provides a high-speed tool steel gear cutting tool in which fracture or chipping does not occur at the cutting edge, and which realizes excellent cutting performance over long periods. Moreover, a method of manufacturing a gear cutting tool including: a step for quenching a tool material comprising high-speed tool steel and which has been rough processed to a shape corresponding to a final shape of a gear cutting tool, to transform a structure of the tool material into martensite, a step for temperling the tool material after quenching to transform any residual austenite dispersingly distributed throughout a matrix of the martensite structure formed by the quenching, into martensite, and a step for finishing the tool material after tempering to a final shape, is characterized in that the tool material after quenching is subjected to sub-zero treatment involving cooling and holding at a temperature of less than-150 째 C.

대표청구항 ▼

What is claimed is: 1. A method of manufacturing a high-speed tool steel gear cutting tool, the method comprising: rough processing a tool material comprising high-speed tool steel into a rough shape corresponding to a final shape of a gear cutting tool; heating the tool material being in said rough shape to a predetermined temperature prior to quenching; quenching the tool material, being in said rough shape and comprising high-speed tool steel, to transform a structure of said tool material into martensite; tempering said tool material being in said rough shape after quenching to transform any residual austenite dispersively distributed throughout a matrix of said martensite structure formed by the quenching, into martensite; and finishing said tool material after tempering to have the final shape of the gear cutting tool, wherein said tool material after quenching is subjected to sub-zero treatment involving cooling and holding at a temperature below-150째 C. for a period of time within a range of more than 1 hour to 5 hours, and transforming residual austenite which is dispersively distributed throughout the matrix into martensite, to thereby transform the structure of said tool material after tempering into a structure in which residual austenite which is a starting point for chipping at the time of high-speed gear cutting does not exist in the matrix of said martensite.

이 특허에 인용된 특허 (21)

Kuehmann Charles J. ; Olson Gregory B. ; Wise John P. ; Campbell Carelyn, Advanced case carburizing secondary hardening steels.
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Maloney James L. (South Greensburg PA) Tomasello Colleen M. (Scottdale PA), Case carburized stainless steel alloy for high temperature applications.
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Wert David E. (West Lawn PA) Hemphill Raymond M. (Wyomissing PA), Case hardenable corrosion resistant steel alloy and article made therefrom.
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Milam David L., Case-hardened stainless steel bearing component and process and manufacturing the same.
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Tanaka Yusuke (Akashi JPX) Aoki Taiitsu (Akashi JPX) Yamada Yasuyuki (Akashi JPX) Machida Masahiro (Akashi JPX) Komine Takeo (Akashi JPX) Onishi Yasushi (Akashi JPX), Coated member having excellent hardness and, adhesive properties.
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Hutchison David C., Cryogenic tempering process for PCB drill bits.
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Radon Roman (Belleview FL), Cryogenically super-hardened high-chromium white cast iron and method thereof.
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Yaginuma Yoshikazu,JPX ; Ishii Yoshiro,JPX ; Okabe Shinichi,JPX, Duplex coated steel composite products and method of manufacturing them.
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Olson Gregory B. (Riverwoods IL), Fracture-tough, high hardness stainless steel and method of making same.
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Toshiaki Ishimaru JP; Youzou Nakamura JP; Akihide Kakutani JP; Tsuneo Egawa JP, Gear shaping method and device and spiral bevel gear cutter.
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Yamagata Hiroshi (11-806 ; Kawauchijutaku ; Mubanchi ; Kawauchi Aoba-ku Toyama JPX) Inoue Akihisa (11-806 ; Kawauchijutaku ; Mubanchi ; Kawauchi Aoba-ku Sendai-shi ; Miyagi-ken JPX) Masumoto Tsuyoshi, Hard wear-resistant film and method for production thereof.
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Takashina, Kenzo; Komori, Yuji; Tanaka, Kazuaki; Machida, Masahiro, Heat treatment method of steel.
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Uehara Toshihiro (Yasugi JPX) Watanabe Rikizo (Mooka JPX) Nakama Nobuhito (Kawanishi JPX), Method of manufacturing high strength and high toughness stainless steel.
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Selinder Torbjorn,SEX ; Strondl Christian,SEX, Multilayered coated cutting tool.
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Kamody Dennis J., Process for the cryogenic treatment of metal containing materials.
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Kamody Dennis J. (Pittsburgh PA), Process for the cryogenic treatment of metal containing materials.
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Derflinger Volker,ATX ; Zimmermann Harald,ATX ; Wohlrab Christian,ATX, Process for the protective coating of machining tools and tool sets.
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Kamody Dennis J., Process of nitriding metal-containing materials.
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Ishii Yoshiro,JPX ; Kanbara Naoto,JPX, Surface treated steel cutting tool.
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Hans Brandle CH; Nobuhiko Shima JP, Wear-resistant workpiece and method for producing same.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Manufacturing method for high-speed tool steel gear cutting tool 원문보기

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Manufacturing method for high-speed tool steel gear cutting tool 원문보기

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