Roughing Cast Iron Brake Disc with Halnn Tools DNML110604 CBN Cutting Tool

1. Halnn Tools CBN Cutting Tool​ Cutting Cast Iron Brake Disc

As the main components of the large automobile industry, the brake drum determines its driving safety, so the quality of the brake drum is particularly important. As the friction coupler of the drum brake, the brake drum should have the highest and stable friction coefficient as well as the appropriate wear resistance, heat resistance and heat dissipation in addition to the strength and rigidity required as the member. As the main application materials, gray cast iron is often used as the heat capacity.

2. Why we Choose Halnn Tools CBN Cutting Tool​ Cutting Cast Iron Brake Disc

Gray cast iron, because of its good shock absorption, is often used in many industries, such as the automotive industry, machine tool industry. And the hardness is not high, generally around HB200, using traditional carbide tools can be completed.

However, many factories that process gray iron castings are now profitably low. The main reason is that the price of raw materials is rising, but the company itself is still the same product. The same process, without any change, will only result in lower profits.

Many large companies have switched to ultra-hard tooling, resulting in improved efficiency and improved costs. The price of a superhard tool is several times that of a carbide tool, but the number of workpieces is several times that of a carbide tool, and the efficiency is significantly improved.

3.CBN Cutting Tool​ Characteristics

5.Detailed Data of DNML CBN Cutting Tool​

Type	Dimension				Standard Chamfer	Grades
	L(mm)	φI.C(mm)	S(mm)	r(mm)		BN-K1	BN-S20	BN-S200	BN-S300
DNML110604	11.6	9.525	6.35	0.4	S01020 S02020	●	●	●	●
DNML110608	11.6	9.525	6.35	0.8		●	●	●	●
DNML110612	11.6	9.525	6.35	1.2		●	●	●	●

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6.Application Case

BN-S300 grade belongs to the solid CBN insert, which has excellent wear resistance, heat resistance and fracture resistance, making it widely used in the field of rough brake drums.

Take the BN-S300 grade rough brake drum as an example:

Workpiece material: gray cast iron

Workpiece hardness: HB180-241

Surface finish: Ra3.2

Inserts Grade: BN-S300 CNMN120716

Cutting parameters: Cutting Speed (Vc)=280m/min, Feed Rate(Fr)=0.9mm/r, Cutting Depth(ap)=2.5mm.

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7.Product Certificate

Zhengzhou Halnn Superhard Materials Co., Ltd is a high-tech enterprise specializing in the production of ultra-hardened tools, and the leader of professional hard material processing tools in China and the first to research new cutting tools specific for gray cast iron, kinds of wear-resistant steel/cast steel, hardened steel materials.

The predecessor of Halnn Superhard Material Co.,Ltd is Henan Superhard Material Institute which is the earliest to make research on processing the brittle and hard materials with cubic boron nitride tools and High-Grade Diamond Tools. As the pioneer of Industry tools in China, Halnn adhere to the initial business philosophy of "Not seeking large and complete, only insist high-precision and professional". With more than 10 years experience, Halnn has researched one by one new materials grade, new technology and become the most famous cutting tools brand in superhard cutting tools industry.