Application of Fu Nike cutter in auto parts processing

The continuous updating of the manufacturing process of auto parts has also put forward requirements for high precision, high efficiency and long life of the blades. At the same time, cutting technology is increasingly demanding tool performance. Since the blade is in close contact with the operator during use, the user's requirements for low labor intensity, low skin irritation and low odor are also becoming stricter.

Polycrystalline Cubic Boron Nitride (PCBN) is one of the most suitable tool materials for high-speed cutting of iron-based metals, as a new tool material that is synthesized by artificial methods and is second only to natural diamond. It has good thermal hardness (heat resistance up to 1400 ° C ~ 1500 ° C), oxidation resistance (no chemical reaction with iron-based materials at 1200 ~ 1300 ° C) and fracture toughness to give PCBN series of blades in actual cutting Shows excellent features. Currently 60% PCBN tools are used in the automotive industry, including automotive engine housings, brake discs, brake drums, rotating shafts, and crankshaft shock absorbers. With the rapid development of modern manufacturing, it provides a good opportunity for the application of PCBN tools.

As a leader in the ultra-hard materials and products industry, Fenike is committed to the exploration and research of cubic boron nitride materials and products in the metal processing industry. This year, Fenike relied on its own advantages in the production of raw materials, coupled with the world's top grinding equipment to make the Fenike PCBN overall blade (into FBN) rapidly improve in quality. With the deepening of research and manufacturing, the FBN series of tools has now become serialized, which brings the specialization of the application. With the introduction of the integrated blade, the customer has experienced the limitation of cutting depth due to the small size of the welded PCBN blade and the risk of PCBN failure due to solder joint failure during processing. However, due to the previous practice in the domestic manufacturing industry, the use of hard alloys and ordinary abrasives to process iron-based metals has limited the application of PCBN tools. The emergence of the FBN series of tools has completely changed this concept. In the automotive industry and other key users to cut difficult materials, the advantages of the FBN series of blades are highlighted. From a previously welded blade with only one edge to an integral polycrystalline blade (up to 8 cutting edges). From single-finished inserts to coarse-finish one-piece inserts for heavy-duty cutting, from noble blades to lean blades. The Finike Cubic Boron Nitride Monolithic Polycrystalline Blade completes the leap in PCBN inserts for metal cutting applications.

Fu Nike CBN tool used in car brake discs

Take the gray cast steel brake disc as an example, the brake disc is generally equivalent to the national standard HT250 grade material casting. Conventional cemented carbide and coated inserts have a general line speed of less than 200 m/min, while the Fenix ​​FBN3500 insert has the same wear resistance at 400 m/min (see Table 1).

Table 1 Comparison of cutting parameters of FBN3500 in cemented carbide

Although China has made great progress in superhard tools, the application of superhard tool remanufacturing is not widespread. The main reasons are as follows: Manufacturers and operators are too costly to adopt superhard tools. PCBN is several times more expensive than ordinary cemented carbide, but its cost of hard alloy is lower on each part, and the benefits are lower than ordinary hard alloys. The research on superhard tool processing mechanism is not enough, superhard tool Processing specifications are not sufficient to guide production practices. Therefore, in addition to in-depth study of the processing mechanism of super-hard tools, it is necessary to strengthen the training of super-hard tool processing knowledge, successful experience demonstration and strict operation specifications. This high-efficiency and environmentally-friendly processing method is more applied to production practice.

As foreign auto parts manufacturers have landed in China, the domestic auto manufacturing volume is getting smaller and smaller, the product life cycle is getting shorter and shorter, and the product update is getting faster and faster; this poses new challenges for the tool. In the future, high-performance, high-quality tools will have a market. Promoting the use of PCBN tools requires users to be brave enough to accept new materials and technologies, and to improve past obsolete production concepts and management methods. If not to improve production concepts and management methods. If you do not improve production efficiency and ensure product quality, it will limit the production of high-quality and efficient tool applications and advanced equipment. Practice has proved that the effectiveness of PCBN tools can not only improve the processing quality of products, but also improve economic efficiency.