1.  Halnn Tools BN-S20  full form PCBN inserts Interrupt Cutting 42CrMo4 Bearing steel Wind turbine bearing 

As an important part of wind power generation, wind power bearings often use heat treatment technology to improve the performance requirements of wind power bearings. The heat-treated wind power bearing has high hardness, and the high-precision wind power bearing often uses grinding as the final processing step.

However, with the rapid development of the manufacturing industry, the competition in the market is intensifying. The adoption of high efficiency and low cost is the process of hard turning (turning grinding by turning) is the processing trend of the wind power bearing industry.

Advantages of hard turning (replacement grinding by turning) wind power bearings:

 (1) High production efficiency;

 (2) Hard turning is a clean production, which reduces the production cost, and the iron scraps turned off are more convenient for recycling;

 (3) It is not necessary to use special machinery for hard turning of wind power bearings, and it can be carried out on existing ordinary lathes or CNC lathes;

(4) Most of the heat generated during the hard turning process is carried away by the chips to obtain a good surface quality.

2.Advantages of Halnn Tools full form PCBN inserts Interrupt Cutting 42CrMo4 Bearing steel Wind turbine bearing 

At present, the tool materials in the processing market are cemented carbide tools, ceramic tools and cubic boron nitride blades. Wind power bearings are large forgings. It is inevitable that deformation will occur after heat treatment, and the balance will be uneven. Therefore, it is not recommended to use ceramic tools. The cubic boron nitride insert is currently the best tool material for processing hardened steel materials. In particular, the non-metallic binder cubic boron nitride inserts BN-S20 grade and BN-S200 grade developed by Halnn Tools have a good effect on processing wind power bearings.

Halnn Tools non-metallic binders Cubic boron nitride inserts BN-S20 grades and BN-S200 grades are all integral cubic boron nitride inserts, of which BN-S200 grades are mainly used for finishing operations, and the depth of the knife is controlled at 0.5mm. Within. The BN-S20 grade can be used for rough finishing. It is mainly used for wind power bearings with a margin of > 2mm or more. It can be processed quickly, saving processing time and improving processing efficiency.

3. Full form PCBN inserts Characteristics 

Type	Dimension				Grades
	L(mm)	φI.C(mm)	S(mm)	r(mm)	BN-K1	BN-S20	BN-S200
RCMX191000Y		19.05	10		◎	◎	◎
RCMX201200Y		20	12		◎	◎	◎
RCMX251200Y		25.4	12		◎	◎	◎

4. Detailed data of RNMX Full form PCBN inserts Characteristics

Insert Grade Machining Type Cutting Speed Vc(m/min) Depth of Cut(mm) Feed Rate Fr(mm/r) BN-S20 Intermittment cutting / Continuous cutting 50~200 0.5~10 0.15~0.1 60~250 ≤1 0.05~0.35 BN-S200 Continuous turning 50~200 1~10 0.15~0.1 60~250 ≤1 0.05~0.35 BN-H21 Heavy interrupted turning / Continuous cutting 60~250 ≤0.5 0.05~0.35 BN-H10 Continuous cutting 60~250 ≤1 0.05~0.35 BN-H20 Intermittment cutting / Continuous cutting 60~180 ≤1 0.05~0.35 BN-H11 Continuous cutting 90~200 ≤1 0.05~0.35

 

5.Application Case

With the widely used of the superhard cutting tools, turning instead of grinding already become a reality. As the leader of supehard cutting tools in China, Halnn Tools has special cutting tools for hard turning bearings, not only realize stable cutting performance, ensure the roughness, but also help the bearings industry reduce the total costs.

Hard turning the wind power bearings outer ring and inner circle. Because of the large diameters of the wind power bearings, the allowance after heat treatment will be large, specific for this phenomenon, Halnn recommend solid cbn insert BN-S20 and BN-S200, the tool life will improve several times than ceramic cutters, and can obtain good surface quality.

6.FAQ

Q1. How is your quality?

A1. We have a very seriously control system. We guarantee the high performance of our products.

Q2.What is the Warranty for your products?

A2. For one year from the date of purchase, If any problem on our side, we will make prompt response, and take the shipping cost and send replacement.

Q3. Do you have different quality for different kind of stone?

A3. Yes, according hardness of stone and stone’s feature, we have different typology respectively.

Q4. If we need technical support, can you offer us?

A4. Yes, we have an experienced team, offering our customers additional benefits with specific advice, by our product managerment staff, engineers and technicians.