Processing parts: brake disc end face, outer circle, and inner hole
Workpiece material: Alloy cast iron
Hardness: HB200-300
Processing steps: rough and fine turning
Blade: cubic boron nitride integral blade
Both the brake drum and brake disc belong to the automotive brake system. The material of the brake disc is generally HT200-300 (gray cast iron). The production process of the brake drum blank is casting, and the main raw materials required are generally pig iron, scrap steel, and recycled iron. At the same time, some alloys such as Cu and Cr are added to improve the performance of the casting. Automotive parts brake drums and brake discs HT250 commonly use coated hard alloy blades and ceramic blades. Although they can complete processing tasks, they consume high processing time and costs, requiring the purchase of a large number of cutting tools for processing. During the cutting process, the wear of the blades is large, and even cutting and chipping situations occur, resulting in frequent tool changes. This reduces processing efficiency, increases production costs, and troubles automotive parts manufacturers., With the development of cutting tool materials, the new type of superhard material - cubic boron nitride, which is second only to diamond in hardness, is sintered at high temperature and high pressure to form a cutting blade with high cutting performance, long service life, wear resistance, and multiple cutting edges that can be switched to CBN cutting heads to help users reduce tool changes and production costs. The SNMN160812 PCBN integral sintered blade is a representative product of our company. The blade is sintered from BTS7800 grade material, with a cutting edge of 16mm, a blade thickness of 8mm, and a tip radius of 1.2mm. This blade is a national standard model blade, and its performance is not inferior to CBN blades produced abroad, but its price is lower than foreign products, making it a cost-effective product. Cutting tools for processing brake discs.
