Sintered material, tool including sintered material, and sintered material production method

Patent metadata

Field	Value
Publication number	US-10029948-B2
Application number	US-201515506079-A
Country	US
Kind code	B2
Filing date	Aug 21, 2015
Priority date	Aug 29, 2014
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

To provide a sintered material having excellent oxidation resistance, as well as excellent abrasion resistance and chipping resistance. A sintered material containing a first compound formed of Ti, Al, Si, O, and N is provided.

First claim

The invention claimed is:

1. A sintered material comprising a first compound formed of Ti, Al, Si, O, and N, wherein
said first compound contains Ti (1-a-b) Al a Si b O x N y , and
a, b, x and y in said Ti (1-a-b) Al a Si b O x N y respectively satisfy 0.01≤a≤0.70, 0.01≤b≤0.55, 0.06≤a+b≤0.88, 0.005≤x≤0.6, 0.4≤y≤0.995, and 0.5<x+y≤1.

2. The sintered material according to claim 1 , wherein
a content of the first compound in said sintered material is greater than or equal to 10% by volume and less than or equal to 100% by volume.

3. A sintered material comprising a first compound formed of Ti, Al, Si, O, and N, wherein
said sintered material further comprises at least one selected from the group consisting of a second compound, a third compound, a fourth compound and a first metal,
said second compound is cubic boron nitride,
said third compound is a compound of at least one element selected from Al and Si, and at least one element selected from the group consisting of B, C, N, and O,
said fourth compound is a compound of at least one element selected from the group consisting of elements in Group 4, elements in Group 5, and elements in Group 6 of the periodic table, and at least one element selected from the group consisting of B, C, N, and O, and
said first metal is a metal formed of at least one selected from the group consisting of Ti, V, Cr, Mn, Co, Ni, Cu, Al, Sn, Si, Zr, Nb, Mo, Ag, Hf, Ta, W, and Pb.

4. A tool comprising the sintered material according to claim 1 .

5. The sintered material according to claim 3 , wherein
said first compound contains Ti (1-a-b) Al a Si b O x N y , and
a, b, x and y in said Ti (1-a-b) Al a Si b O x N y respectively satisfy 0.01≤a≤0.70, 0.01≤b≤0.55, 0.06≤a+b≤0.88, 0.005≤x≤0.6, 0.4≤y≤0.995, and 0.5<x+y≤1.

6. The sintered material according to claim 3 , wherein
a content of the first compound in said sintered material is greater than or equal to 10% by volume and less than or equal to 100% by volume.

7. A tool comprising the sintered material according to claim 3 .

Assignees

• Sumitomo Electric Industries

Inventors

• Moroguchi Hironari
• Harada Takashi
• Kukino Satoru

Classifications

• B23B27/14

  Cutting tools of which the bits or tips {or cutting inserts} are of special material · CPC title

• C04B35/5611

  based on titanium carbides · CPC title

• C04B35/6267

  Pyrolysis, carbonisation or auto-combustion reactions · CPC title

• C04B35/5607

  based on refractory metal carbides · CPC title

• C01B21/064

  with boron · CPC title