The basic properties of cutting tool materials
High hardness and high wear resistance:The hardness of the cutting tool material must be higher than the hardness of the material to be cut,The hardness of the existing tool material is above 60HRC. The harder the cutting tool material is, the better the wear resistance is. However, due to the complex cutting conditions, the wear resistance of the material is determined by its chemical composition and microstructure stability.The material of the cutting tool and its performance
Good manufacturability and economyIn order to facilitate the manufacture, the cutting tool material should have good craft, such as forging, heat treatment and grinding performance. Of course, the economy should be taken into account when making and selecting. At present, the cost of superhard material and coated tool material is more expensive, but its service life is very long. In the mass production, the cost of each part is reduced. Therefore in the selection must be considered.
high heat resistanceHeat resistance, also known as red hard, is a measure of the main indicators of the performance of the tool material. It is a comprehensive reflection of the tool material at high temperature to maintain hardness, wear resistance, strength, oxidation resistance, anti adhesion and anti proliferation ability.
Sufficient strength and impact toughnessStrength is the ability to resist the action of the cutting force and not to the collapse of the blade and the broken pole. General use of bending strength to express.Impact toughness refers to the cutting tool material in the intermittent cutting or the impact of the working conditions to ensure the ability not to collapse, generally, the higher the hardness, the lower the impact toughness, the more brittle the material. Hardness and toughness are a pair of contradictions, but also a key to overcome the cutting tool materials.The material of the cutting tool and its performance
