What material is good for the blade of the shears?
What material is good for the blade of the shears? The material selection of the blade of the shearing machine is based on the different material to be cut, and should be replaced at any time. A "knife" to the end, not only the quality of the workpiece is low, the life of the blade will be severely shortened. For example, the cutting blade of T10A carbon material is used for cutting high hardness plate, and the blade will soon be worn out and discarded. Cr12MoV die steel blade shearing common A3 plate, is a waste of resources. Therefore, according to the different processing plate, the correct choice of blade material shear machine. There are 7 kinds of common material for shearing machine. How to choose the blade of shearing machine properly?
Cr12MoV Die Steel
Cr12MoV die steel blade has poor high temperature plasticity. However, this material is used to manufacture heavy load, large cross-section and complex shape shear blades. There are many shearing times, up to 800,000 shearing times. It is suitable for shearing stainless steel sheets and silicon steel sheets with high hardness.
H13(4Cr5MoSiV1) Hot Working Die Steel
H13 steel (4Cr5MoSiV1) is a kind of high quality air-cooled hardening hot-working die steel. It is suitable for hot upsetting, hot extrusion and hot shearing of shear blades. It is a representative steel grade widely used in hot work die steel. The steel plate can be hot sheared at the highest temperature below 800 degrees.
45# carbon
45 # carbon steel is a kind of medium carbon steel, which is used to manufacture the blade material of shears. In fact, its quenching performance is not good. The heat treatment hardness of 45 # carbon steel is only HRC 42 ~ 46. Therefore, 45 # carbon steel is generally processed by quenching and tempering + high frequency surface hardening. The wear resistance of this material blade is slightly worse than that of carburizing. The shearing application of non-metallic sheets is the most.
LD(7Cr7Mo2V2Si) Cold Working Die Steel
LD (7Cr7Mo2V2Si) is a kind of high quality, high strength and Toughness Cold Working Die steel. This material has high strength, toughness and wear resistance, high bending strength, excellent cold and hot processing technology, small distortion of heat treatment and strong versatility. It has higher strength and toughness, and better wear resistance. It can be used to manufacture various cold shear blades. The service life is doubled or even more than ten times longer than that of Cr12MoV, W18Cr4V, W6Mo5Cr4V2, Cr12, GCr15 and 9SiCr.
6CrW2Si Alloy
6CrW2Si alloy steel is a kind of high quality alloy tool steel, which has higher quenching hardness and high temperature strength than 4CrW2Si steel and 5CrW2Si steel. The scissors made of this material not only bear large impact load, but also have high wear resistance. It is the first choice for cutting blades of various common steel plates and stainless steel plates with harder texture.
T10A carbon
T10A carbon steel is a kind of high quality carbon structural steel. Its wear resistance and strength are high. Its shortcomings are low hardenability, low hardness and large quenching deformation. T10A carbon steel shear blade, suitable for manufacturing needs high wear resistance requirements, not subject to sudden and violent vibration, and requires a certain degree of toughness and sharp edge of the shear blade. For example: ordinary A3 plate cutting blade.
9Crsi alloy
9Crsi alloy tool steel is a kind of high-quality low-speed low-alloy tool steel. It is a commonly used low-alloy tool steel. 9Crsi alloy tool steel shear blade has high hardenability and hardenability. This material has complex shape, small deformation, high wear resistance and low speed cutting blade. For example, the cutting blade of Q235 plate is made of this material.
