In order to meet the application requirements of engineering machinery in various harsh environments, the selection of materials and material performance of cutting ring forgings are crucial. This article will introduce the selection principles and material performance analysis of cutting ring forgings for engineering machinery.
I. Selection principles:
- High strength: Engineering machinery cutting ring forgings need to withstand high loads and vibrations, so their materials should have high strength and stiffness to ensure they can withstand large loads.
- Good wear resistance: Cutting ring forgings are in direct contact with the cut materials and are prone to wear during use. Therefore, the selected material needs to have good wear resistance to extend the service life of the cutting ring forging.
- Good toughness and plasticity: When cutting ring forgings are subjected to external impact, the material should have a certain degree of plasticity and toughness to avoid fracture or breakage.
- Good machinability and weldability: In order to facilitate machining and maintenance, the selected material should have good machinability and weldability to improve production efficiency.
II. Material performance analysis
- High-speed steel
High-speed steel is widely used in the manufacturing of cutting tools due to its high hardness and good wear resistance. However, its toughness is relatively low, making it prone to cracking or breaking. Therefore, when manufacturing high-speed steel cutting ring forgings, an optimized heat treatment process should be adopted to increase its toughness.
- Cast iron
Cast iron has simple production technology and relatively lower price, and also has good strength and wear resistance. However, it also has obvious defects, such as high brittleness and easy breakage, and poor weldability with steel. Therefore, cutting ring forgings made of cast iron need to be heat treated to improve their toughness, and suitable welding materials should be selected for processing.
- High chromium alloy steel
High chromium alloy steel is widely used in the cutting industry due to its high hardness, strong toughness, good wear resistance, good machinability, and weldability, which can meet various requirements of cutting ring forgings during use.
In summary, when manufacturing cutting ring forgings for engineering machinery, materials should be selected reasonably according to usage conditions and requirements, and corresponding heat treatment and welding techniques should be mastered to ensure the safe and reliable use of cutting ring forgings.
