Cut Off Disc

As the core consumables for precision cutting, the classification system of cutting blades is based on abrasive gradient, interface strengthening and dynamic balance technology. Compared with conventional cutting tools, cutting blades generally adopt an ultra-thin design of 0.5-1.0mm, and are cross-reinforced by five layers of basalt fiber mesh. The radial crack resistance reaches 1800MPa, the maximum tolerable speed exceeds 15000rpm, and the incision width is controlled within 1.2mm.

According to the abrasive system, it is divided into two categories: zirconia corundum-based and polycrystalline diamond-based. Zirconia corundum cutting blades adopt microcrystalline sintering process, the abrasive purity reaches 99.7%, the single feed amount when cutting 304 stainless steel reaches 8mm, and the cut surface roughness Ra≤3.2μm. Polycrystalline diamond cutting blades use cobalt-nickel alloy as a binder, and 50-100 mesh diamonds are distributed in a three-dimensional network. When cutting tungsten carbide cemented carbide, the tool life is 20 times that of ordinary products.

Structural innovation improves operational safety: The laser microporous heat dissipation system opens a 0.3mm diameter air guide hole on the sheet body, which reduces the cutting temperature by 55%; the asymmetric corrugated interface design effectively disperses stress concentration and reduces the vibration amplitude by 40%. The automotive industry-specific cutting blade uses a titanium alloy liner and cooperates with magnetic abrasive arrangement technology to cut the burr height of the silicon steel sheet of the new energy vehicle motor to ≤15μm.

Special fields give birth to high-end models: aviation-grade cutting blades are mixed with silicon carbide whiskers to maintain structural stability under 800℃ conditions when cutting titanium-aluminum composite plates; semiconductor wafer cutting blades use chemical vapor deposition diamond film with a thickness of 0.3mm to achieve a full wafer cutting depth accuracy of ±5μm. The ISO 21948 standard requires that the cutting blade must pass 300,000 pulse fatigue tests, and advanced products use industrial CT scanning to ensure zero internal defects. Environmentally friendly products use water-based resin binders, which reduce VOC emissions by 80%. Self-sharpening cutting blades are currently being developed to achieve automatic renewal of abrasive particles through pH-responsive coatings.