Formula of cutting blade for hot cutting casting piece and machining method

Abstract

The invention relates to a formula of a cutting blade for a hot cutting casting piece and a machining method. The formula comprises the following components of, by weight ratio, 20%-40% of chrome corundum with granularity 24 mesh, 5%-25% of iridium-plating brown fused alumina with granularity 24 mesh, 5%-25% of iridium-plating brown fused alumina with granularity 30 mesh, 5%-25% of iridium-plating brown fused alumina with granularity 36 mesh, 3.0%-5.5% of liquid phenolic resin, 7.5%-10.5% of powder phenolic resin with granularity 200-300 mesh, 2.0%-5.0% of potassium sulphate with granularity 150-200 mesh, 1.0%-3.0% of pyrite powder with granularity 325-400 mesh, 3.0%-8.0% of calcium sulfate whisker with granularity 80-150 mesh and 0.2%-0.8% of carbon black with granularity 325-400 mesh. The formula of the cutting blade for the hot cutting casting piece and the machining method have the advantages that the formula by using multiple materials in a mixed mode mixed is adopted, the resin grinding wheel cutting blade for the hot cutting casting piece is developed through a specific hot-pressing technology, the high-temperature resistant performance is remarkable, the requirement for high-efficiency cutting machining of casting workpieces with temperature above 600 DEG C can be met, the heat dissipation performance is good, the durability is improved by 5-6 times, the dust is small, the cutting speed is rapid, the efficiency is improved obviously, the shock resistance and the side direction loading capacity are improved, and the safety performance is guaranteed.

Description

technical field [0001] The invention relates to the field of metal cutting tool products, in particular to a formula and a processing method of a cutting sheet for hot-cut castings. Background technique [0002] After years of rapid development, my country has become a major manufacturing country in the global foundry industry. However, at present, the overall manufacturing and processing cycle of my country's foundry industry is long, and the production efficiency is low. [0003] In order to shorten the cycle of casting processing and improve production efficiency, my country's foundry industry has higher and higher requirements for the environmental conditions that resin grinding wheel cutting discs can adapt to. Especially in recent years, the world has paid more and more attention to efficiency and labor costs, requiring us to develop To meet the needs of a certain type of customers to the greatest extent, we can produce special cutting discs that can be used under cert...

AI Technical Summary

Problems solved by technology

For the eager cutting of various casting workpieces (when the casting temperature is above 600°C), the existing thickness is 3.2mm to 3.5mm, and the maximum line speed is 70m / s to 80m / s. Satisfied, the product has poor heat dissipation, fast consumption, large dust, low efficiency, insufficient impact resistance and lateral load capacity, and no guarantee for safety performance

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