Conical Grinding Wheel Ultrasonic-Assisted Grinding Micro-Texture Surface Formation Mechanism

The rotating ultrasonic-assisted grinding (RUAG) experiment of the conical wheel generated intermittent pit-shaped micro-texture on surface workpiece, reducing thermal damage and improving lubrication characteristics compared with conventional (CG). To further optimize properties, this paper studied formation mechanism micro-texture. This study used as basis theory that micro-debris volume equals macroscopic material removal one to establish mathematical equation depth. Thereafter, formulas feature parameters, including pit length, depth, texture spacing were deduced. solved microscopic depth was alternatingly positive negative, indicating alternating separation between grain workpiece caused pits in grinding. Through response analysis (RSA), analyzed relationships among machining parameters (i.e., amplitude, feed rate, rotational speed). Single-factor experiments finite element simulation methods, performed verify theoretical features. simulated program formed three-dimensional surfaces micro-textures. Their measurement results consistent ones. Experimental proved range length covers ones, verifying accuracy model. For wheel, 8–10 μm amplitude optimal for better roughness, lubrication, damage. Roughness improved when increasing speed or rate based experiment. If exceed limiting values, then continuous will break down abrasive grains even cubic boron nitride (CBN) coating. likewise showed shape closely related which deserves investigation.