Substrate-free full powder ultra-thin diamond saw blade

Abstract

The invention relates to a substrate-free full powder ultra-thin diamond saw blade. A matrix is prepared by powder and diamond through a powder metallurgy method. The powder includes copper powder which is 35-55% of the total mass, cobalt powder which is 8-12% of the total mass, tin power which is 8-12% of the total mass, nickle powder which is 2-4% of the total mass, titanium powder which is 1-3%of the total mass, chromium powder which is 1-3% of the total mass, molybdenum powder which is 1-3% of the total mass, iron powder which is 5-20% of the total mass, tungsten powder which is 1-10% ofthe total mass, silver powder which is 0.5-1.5% of the total mass, silicon powder which is 0.3-0.5% of the total mass, phosphorus powder which is 0.2-0.3% of the total mass, and carbon power which is0.2-0.3% of the total mass. The volume concentration of the diamond is 2%-60% and the particle size is 0.04-0.25 mm. Because the technical scheme is used in the invention, the substrate-free full powder ultra-thin diamond saw blade has the following advantages: firstly, the substrate-free full powder ultra-thin diamond saw blade has no a substrate, which greatly reduces the waste of the substrate;secondly, the thickness can reach 0.3-1.0 mm; and thirdly, the height of a cutter head reaches 45% of the outer diameter of the saw blade, and so the service life of the product is long, the cuttingefficiency is high, the saw kerf is small, and the energy and the resources can be saved.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a matrix-free all-powder ultra-thin diamond saw blade. Background technique [0002] The existing carrier matrix saw blade is usually a 65Mn material steel matrix in the middle. After the cutter head is used up, the steel matrix cannot be reused, resulting in waste of steel. The conventional steel matrix accounts for 10%-15% of the entire saw blade material cost. The cost ratio of the sound-absorbing steel sheet substrate and the sandwich-shaped steel sheet substrate is higher. [0003] Due to the limitation of steel quality, the thickness of conventional steel substrate saw blades cannot be made too thin. Generally speaking, for a saw blade with an outer diameter of Φ100mm, the thickness of the substrate is 0.8mm, and the blade head is 1.0mm, which has reached the limit. Due to the high thickness of the saw blade, the width of the saw kerf reaches 1.0mm, which result...

AI Technical Summary

Problems solved by technology

[0002] The existing carrier matrix saw blade is usually a 65Mn material steel matrix in the middle. After the cutter head is used up, the steel matrix cannot be reused, resulting in waste of steel. The conventional steel matrix accounts for 10%-15% of the entire saw blade material cost. The cost ratio of the sound-absorbing steel sheet substrate and the sandwich-shaped steel sheet substrate is higher

[0003] Due to the limitation of steel quality, the thickness of conventional steel matrix saw blades cannot be made too thin