Experimental Investigation On High Speed Milling Of Hardened Steel

Hardened steel is widely used in mold and die industry, aerospace industry and automobile industry for good mechanical characteristics. It is efficient to enhance metal removed rate, surface quality when high speed milling(HSM) hardened steel .This paper focuses on cutting mechanism of hardened steel with HSM technology and fuzzy inference of cutting force and surface roughness in that condition. The detail has been described as follows:1. Investigating the effects of cutter's helix angle, hardness of workpiece material, milling method, and minimum quantity of lubrication upon cutting force in high-speed side and end milling of Cr12MoV, using solid coated carbide cutters.2. Investigating the effects of cutter's helix angle, hardness of workpiece, milling orientation, minimum quantity of lubrication and cutting speed,feed rate,ratial depth of cut upon surface roughness and tool life.3. Investigating the effects of cutter's helix angle, hardness of workpiece material, milling method, and minimum quantity of lubrication upon tool wear and describing the mechanism of wear according to the mode of tool wear.4. Building a prediction model of cutting force and surface roughness by using fuzzy logic inference system, and providing foundation for selecting the cutting parameters properly and controlling surface quality by using the high prediction accuracy model.