FAQ pro

Where you are now :HOME > NEWS & EVENTS > FAQ pro

NEW PRODUCT
  • Tel:+86 371-67981990
  • High-tech Zone of Zhengzhou,China.
HOME > NEWS & EVENTS > FAQ pro

Aiming at different workpiece,what surface quality requirements do customers have?

1. High hardness castings, some do not require a high precision of the workpiece, as long as the size can be processed to, such as pump components; Some workpieces require a higher precision, some reached within Ra0.4.
2. After the heat treatment of high hardness castings, precision requirements after fine finishing are generally Ra0.8, part precision parts may require Ra0.4.
3. Ordinary gray cast iron, surface quality general requirements Ra1.6, high brightness or high roughness.
Advantages of Halnn superhard cutting tools processing workpiece and cutting tools grades usage aiming at different parts.?
Halnn superhard materials Co,Ltd is through continuous research and practice, developed the best cutting tool grades, and the best appropriate cutting parameters. Such as high hardness cast iron roughing use BN-K1 grades CBN inserts, fine finishing use BN-K10 grades CBN inserts; High hardness steel parts after heat treatment roughing use BN-S20 grades CBN inserts, semi-finishing use the BN-S200 grades CBN inserts, fine finishing use BN-H10 grades CBN inserts, BN-H11 grades CBN inserts and BN-H20 grades CBN inserts, BN-H21 grades CBN inserts; Ordinary gray cast iron roughing use BN-S30 grades CBN inserts, semi-finishing use the BN-S300 grades CBN inserts, fine finishing use BN-K20 grades CBN inserts.
Halnn superhard cubic boron nitride inserts processing high hardness difficult processing materials advantages:
1.Good high temperature red hardness, and can withstand high temperature 1300 ℃ -1500 ℃, and can processing high hardness workpiece that traditional cutting tools can not processing;
2. Good impact toughness and good resistance to fracture strength properties, the main use of non-metallic (ceramic) as a binder to improve the impact resistance of the cutting tool, it is Halnn superhard patented product;
3. It can processing high hardness workpiece under high-speed cutting status, such as fine finishing hardened steel, Halnn superhard cubic boron nitride inserts maximum line speed can reach 1500m / min;
4. Dry cutting, saving processing costs, reduce environmental pollution;
The advantages of Halnn superhard CBN cutting tools processing high hardness hardened steel parts compared to carbide cutting tools?
Processing Material: GCr15 bearing steel;
Processing parts: bearing outer ring;
Hardness: HRC62;
Processing Step: fine finishing;
Carbide cutting tools processing tool geometry parameters are: γ. = -6º, Α. = 8º, κr = 45º, κ'r = 45º, γε = 1.2mm, λs = 0º. Cutting parameters: Vc = 15m / min, ap = 0.3mm, Fr = 0.1 ~ 0.2mm / r. Cutting tool durability is 15min, the surface roughness : Ra = 1.6μm.
Halnn superhard CBN inserts BN-H20 grades cutting parameters: Vc = 115 m / min, ap = 0.3mm, Fr = 0.1 ~ 0.2 mm / r. Cutting tool durability is 55min, the surface roughness is Ra ≦ 0.8μm, fully meet the requirements of the turning instead of grinding.

Zhengzhou halnn superhard materials Co., Ltd     TEL:+86 371 67981990 Real Time Web Analytics