Diamond sintered body for tools and method of manufacturing same
AssigneeSumitomo Electric Industries, Ltd.
InventorsTetsuo Nakai, Shuji Yazu
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Abstract
A diamond sintered body for tools contains a diamond content in excess of 93 percent and not more than 99 percent by volume and a residue including at least one of a metal or a carbide selected from groups IVa, Va and VIa of the periodic table and an iron group metal of 0.1 to 3 percent by volume in total and pores at least 0.5 percent and not more than 7 percent by volume.
Claims33
A diamond sintered body for tools, having a diamond content in excess of 95 percent and not more than 99 percent by volume, and a residue including at least one of a metal or a carbide selected from groups IVa, Va and VIa of the periodic table, and an iron group metal of 0.1 to 3 percent by volume in total, and pores at least 0.5 percent and not more than 5 percent by volume.
A diamond sintered body for tools, comprising:
- self-bonded diamond particles comprising between about 95% and 99% by volume of said diamond sintered body;
- and
- a residue including:
- at least one of a metal or a carbide selected from groups IVa, Va and VIa of the periodic table, and an iron group metal between about 0.1 to 3% by volume of said diamond sintered body;
- and
- pores comprising between about 0.5 and 5% by volume of said diamond sintered body.
Dependencies are inferred from the claim text.