Diamond inner circle cutting blade and preparation method thereof

Abstract

The invention discloses a diamond inner circle cutting blade and a preparation method thereof. The diamond inner circle cutting blade comprises a round matrix which comprises a first main surface, a second main surface, a third main surface, a fourth main surface, a first side surface located on the edge of the outer circumference, and a second side surface located on the edge of the inner circumference; the third main surface and the fourth main surface are correspondingly formed in the manner that the upper end and the lower end of the second side surface extend outwards in the direction of the first side surface by equal distances; the third main surface and the first main surface are connected through a first annular side face; the fourth main surface and the second main surface are connected through a second annular side face; the height of the first annular side face in the axial direction of the round matrix is equal to that of the second annular side face in the axial direction of the round matrix; and the third main surface, the fourth main surface and the second side surface are each provided with a diamond coating containing diamond particles.

Description

technical field

[0001] The invention relates to a tool for cutting precious gems and jade, in particular to a diamond inner circle cutting blade and a preparation method thereof. Background technique

[0002] Diamond inner circle cutting blade is a kind of diamond tools, mainly used for processing precious materials, such as artificial crystals, natural gemstones, precious ceramics and other hard materials, with small kerf, good cutting flatness, high grinding efficiency, etc. advantage.

[0003] The manufacturing method of the existing diamond inner circle cutting blade is to directly composite electroplate nickel diamond on the stainless steel substrate from the surface where the inner circle knife edge is located to extend 2.0-3.0mm toward the outer peripheral surface of the substrate. The diamond inner circle blade made by this method is widely used because of its simple manufacturing process and the ability to realize large-scale production. However, the diamond inner...

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