Worm Gear Carbide Hobbing Cutter TIN AlCrN TiCN IAlN Coating

Carbide Hobbing Cutter 

Differences between cemented carbide steel and high-speed steel:

First, the performance of the two is different
1. Performance of cemented carbide steel: The cutting speed of cemented carbide tools is 4 to 7 times higher than that of high-speed steel, and the tool life is 5 to 80 times longer. Manufacturing molds and measuring tools, the service life is 20 to 150 times higher than that of alloy tool steel. It can cut hard materials of about 50HRC.
However, cemented carbide is brittle and cannot be machined, and it is difficult to make integral tools with complex shapes. Therefore, blades of different shapes are often made, which are installed on the tool body or mold body by welding, bonding, mechanical clamping, etc. .
2. Performance of high-speed steel: tool steel with high hardness, high wear resistance and high heat resistance, also known as high-speed tool steel or front steel, commonly known as white steel. The quenching temperature of high-speed steel is generally close to the melting point of the steel.
After quenching, it is generally necessary to temper 3 times between 540 and 560 °C. Increasing the quenching temperature can increase the red hardness of the steel. In order to improve the service life of high-speed steel tools, the surface can be strengthened, such as low-temperature cyanidation, nitriding, sulfur-nitrogen infiltration, etc.

Second, different classification

1. Cemented carbide classification

(1) Spheroid

Cemented carbide balls are mainly composed of carbides (WC, TiC) micron powders of high hardness refractory metals. Common cemented carbides include YG, YN, YT, YW series.

Commonly used cemented carbide balls are mainly divided into: YG6 cemented carbide balls. YG6x cemented carbide balls. YG8 cemented carbide balls. YG13 cemented carbide balls. YG20 cemented carbide balls. YN6 cemented carbide balls. YN9 cemented carbide balls .YN12 Carbide Ball. YT5 Carbide Ball. YT15 Carbide Ball.

(2) Rod-shaped body

The main features of cemented carbide rods are stable mechanical properties, easy welding, high wear resistance and high impact resistance.

Carbide rods can be used not only for cutting and drilling tools (such as micron, twiste drills, drills for vertical mining tool indicators), but also as input pins, various roll wear parts and structural materials. In addition, it can be widely used in many fields, such as machinery, chemical, petroleum, metallurgy, electronics and defense industries.

(3) Plate body

Carbide plate, with good durability and strong impact resistance, can be used in hardware and standard stamping dies. Carbide plates are widely used in the electronics industry, motor rotors, stators, LED lead frames, EI silicon steel sheets, etc. All cemented carbide ingots must be inspected strictly and only those without any damage, such as pores, air bubbles, cracks, etc., can be shipped out.

2. Classification of high-speed steel

(1) High-speed steel is classified according to the alloying elements it contains

① Tungsten series high-speed steel (containing 9-18% tungsten);

② Tungsten-molybdenum high-speed steel (containing 5-12% tungsten and 2-6% molybdenum);

③ High-molybdenum high-speed steel (0-2% tungsten, 5-10% molybdenum);

④ Vanadium high-speed steel is divided into high-speed steel with general vanadium content (containing 1-2% vanadium) and high-speed steel containing vanadium (containing 2.5-5% vanadium) according to the content of vanadium; ⑤Cobalt high-speed steel (containing 5% of cobalt) ~10%).

(2) High-speed steel is classified according to different uses

① Universal high-speed steel: It is mainly used to manufacture cutting tools (such as drills, taps, saw blades) and precision tools (such as hob, gear shaper, and broach) for metal materials with a cutting hardness of HB≤300. The commonly used steel grades are W18Cr4V, W6Mo5Cr4V2, etc.

② Special-purpose high-speed steel: including cobalt high-speed steel and super-hard high-speed steel (hardness HRC68-70), mainly used to manufacture tools for cutting difficult-to-machine metals (such as superalloys, titanium alloys and high-strength steels, etc.), commonly used steel grades There are W12Cr4V5Co5, W2Mo9Cr4VCo8 and so on.

Small modulus carbide solid gear hobbing cutter:

Application industry

Auto parts: wheel drills, rivet hole drills, decorative drills, etc.;

Steam turbine field: Christmas tree milling cutter, profile tool, blade root blade processing tool, etc.;

Aero-engine field: small modulus gear shaper, machining titanium alloy, superalloy tool, etc.

Cemented carbide inserts are made of cemented carbide, which is an alloy material made of hard compound of refractory metal and bonding metal through powder metallurgy process.

Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, especially its high hardness and wear resistance, which remain basically unchanged even at a temperature of 500 °C , still has high hardness at 1000℃