Discussion on Planing Processing Technology of High-strength Wear-resistant Steel

    
    High-strength wear-resistant steel, a kind of wear-resistant alloys, stands out for its excellent wear resistance and fatigue properties. With strong hardness, wear resistance and high strength, it has been widely applied in heavy industry machinery parts like roller, spindle, roll cover, grinding wheel for power tools and blades eye tools for cutting torches and so on.
    
    It is of great significance to research and study the planing processing technology of high-strength wear-resistant steel. This article provides a comprehensive discussion of the planing processing technology of high-strength wear-resistant steel, including the planing process design, machining strategies and coolant strategies, as well as how to ensure the dimensional tolerances and surface quality while manufacturing high-strength wear-resistant steel components.
    
    Under normal circumstances, there are four major planing processes for manufacturing high-strength wear-resistant steel components: planing, sawing, milling, and drilling. These processes should be flexibly combined. The specifics should be done flexibly in accordance with the shape and size of the components. Different planing processes are suitable for different shapes, which can be determined according to the proposed product drawings (Fig 1).
    
    
    
    Fig 1: Planing process arrangement for high-strength wear-resistant steel
    
    The planing process design for high-strength wear-resistant steel components is related to the size and shape of the components, the number of machining processes, the size of the tool, and the choice of cutting material. The machining strategies for the components should be determined based on these parameters. For example, for components with small shape and size, the choice of tool should be a small one. In additions, a short-length tool should be used for components with complicated shape and small size.
    
    Moreover, the selection of coolant strategies is also essential for the planing processing technology of high-strength wear-resistant steel. The purpose of coolant strategy is to ensure the temperature of the cutting tool and the temperature of the material surface at an appropriate level to ensure both accuracy and quality of the machined parts. Generally, the planing of high-strength wear-resistant steel components should be done with emulsion, cutting oil or cooling oil. The cutting speed and feed rate of high-strength wear-resistant steel should be determined based on the cutting conditions, cutting tools and workpiece material.
    
    Even with an appropriate planing process design, machining strategies and coolant strategies, it is difficult to maintain the dimensional tolerances and surface quality of the high-strength wear-resistant steel components. Generally, these components should be planed with high-precision cutting tools, such as precision planing, wire cutting and special cutting tools. Moreover, planing with higher cutting speed and feed rate should be adopted to ensure specified dimensional accuracy and surface quality.
    
    In conclusion, the planing processing technology of high-strength wear-resistant steel is highly dependent on the planing process design, the machining strategies and the coolant strategies. These should be determined based on the product drawings, the shape and size of the components, the number of machining processes, the size of the tool, and the choice of cutting material. Even with all these considerations, it can still be difficult to maintain the dimensional accuracy and surface quality of the components. As such, high-precision cutting tools and a higher cutting speed and feed rate should be used for planing high-strength wear-resistant steel components.

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