Laser-welding diamond disc and preparation method thereof

Abstract

The invention relates to a laser welding diamond round saw blade and a preparation method thereof, which belong to the technical field of powder metallurgy material. The saw blade is used for solving the problem that the laser welding diamond round saw blade has lower speed and easy edge feed when used for cutting hard stones. The material of a cutting head is prepared from the following powder raw materials by weight percentage: 36 to 46 percent of copper, 28 to 38 percent of iron, 10 to 20 percent of cobalt, 3 to 10 percent of nickel, 3 to 9 percent of tin, 1 to 2.5 percent of silicon-chromium alloy, 1 to 1.6 percent of liquid paraffin wax and 1.0 to 2.2 percent of diamond, wherein the silicon-chromium alloy contains 40 percent of silicon, 30 percent of chromium and the balance being iron and small quantities of impurities according to mass proportion. The method adopts a mixed base material of the copper, the iron and the cobalt to improve the service life and the sintering performance of the saw blade and the added silicon-chromium alloy powder is dispersively distributed in a fetal body, thereby effectively improving the sintering performance of the fetal body so as to make the fetal body accelerate an alloying process. At the same time, the self-sharpening performance of the fetal body is improved, the holding force of the fetal body to the diamond is enhanced and the service life and the cutting performance of the saw blade are improved, thereby making the wear performance of the fetal body and the wear performance of the diamond be matched.

Description

Technical field [0001] The invention relates to a diamond cutter and a preparation method, in particular to a laser welding diamond circular saw blade used for cutting hard stone and other building materials and a preparation method, and belongs to the technical field of powder metallurgy materials. Background technique [0002] Diamond circular saw blades are widely used in road and bridge maintenance, construction, decoration and other fields. Among them, laser welded diamond circular saw blades gradually replace traditional sintered diamond circular saw blades with their excellent performance. Because the sintering process of laser-welded diamond circular saw blades is different from that of sintered diamond circular saw blades, the sintering time should be much shorter, and the rigidity of laser-welded diamond circular saw blades is better than that of sintered diamond circular saw blades, which is laser welding The extension of the service life of diamond circular saw blades...

AI Technical Summary

Problems solved by technology

At present, from the point of view of the use effect, the traditional sintered diamond circular saw blade has a better edge cutting effect when cutting stone, but the cutting life is short, especially when cutting hard stone.

However, the existing welded diamond circular saw blades have the following problems: the cutting speed is slow and the edge is easy to cut when cutting stone, so it is necessary to further improve the formula and optimize the ratio combination to provide laser welded diamond with better performance. circular saw blade