Invention Grant
- Patent Title: Method for manufacturing sintered component, sintered component, and drill
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Application No.: US16922287Application Date: 2020-07-07
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Publication No.: US11305347B2Publication Date: 2022-04-19
- Inventor: Yasunori Sonoda , Ryota Take , Fumihiro Matsumoto , Tsuguru Sugimoto
- Applicant: SUMITOMO ELECTRIC SINTERED ALLOY, LTD. , NIKKEN TOOL CO., LTD.
- Applicant Address: JP Takahashi; JP Kadoma
- Assignee: SUMITOMO ELECTRIC SINTERED ALLOY, LTD.,NIKKEN TOOL CO., LTD.
- Current Assignee: SUMITOMO ELECTRIC SINTERED ALLOY, LTD.,NIKKEN TOOL CO., LTD.
- Current Assignee Address: JP Takahashi; JP Kadoma
- Agency: Baker Botts L.L.P.
- Agent Michael A. Sartori
- Priority: JP2014-252531 20141212
- Main IPC: B22F3/16
- IPC: B22F3/16 ; B23B51/02 ; C22C38/00 ; B22F5/10 ; B22F5/06

Abstract:
Provided is a method for manufacturing a sintered component, which can suppress occurrence of edge chipping when a through-hole is formed in a powder-compact green body and also has a good productivity. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a powder-compact green body; a drilling step of forming a hole in the powder-compact green body using a drill; a sintering step of sintering the powder-compact green body after drilling, wherein the drill used for drilling has a circular-arc shaped cutting edge on a point portion thereof.
Public/Granted literature
- US20200331065A1 METHOD FOR MANUFACTURING SINTERED COMPONENT, SINTERED COMPONENT, AND DRILL Public/Granted day:2020-10-22
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