PCBN tool is used to turn hardened steel, it is required that the quenching hardness of the workpiece should be higher than 45 ~ 55HRC. When hard cast iron is processed, as long as the hardness reaches the medium hardness level (45HRC), a good processing effect will be achieved. For example, the exhaust valve seat on the cylinder head of an automobile engine is made of high chromium alloy cast iron material containing copper and molybdenum, the hardness of which is generally about 44HRC.
PCBN 도구의 특징
CNC 절단 산업에 널리 사용되고 있는 PcBN 커터는 좋은 발전 전망을 가진 커터 재료입니다.
PCBN tool the hole of the valve seat is countersunk (reaming), two kinds of process, most of which are processed on the special automatic line, together with the gun reaming pipe hole. Adopted by the cutting dosage is nu c = 71.6 m/min, nu f = 26.5 mm/min, alpha p = 1.0 mm, with BC broaching oil. After processing by the PCBN cutting tool, compared with using various carbide insert processing, cutting tool durability for an average of 1200 pieces. The processing surface roughness is Ra0.4 microns, seat surface runout 0.05 mm or less. Since the use of the PCBN tool in Dongfeng motor engine plant in 1988, the effect has been stable, and the tool localization problem of imported equipment has been well solved.
베이징 데미나 제품은 성능이 신뢰할 수 있고 조작이 편리하다.사용자는 사용 시 적은 수작업 스킬만 사용해도 CVD 블레이드, PCD, PCBN을 연마할 수 있다.또한 기계 블레이드, 칼, 그루브, 경질 합금 및 고속강 비표준 블레이드, 표준 또는 비표용 공구와 같은 다양한 공구를 연마할 수 있습니다.
