Theoretical study ultra-high speed grinding limit processing efficiency model

Theoretical limit of ultra-high speed grinding processing efficiency Model of Song Guiliang 1, Liu Xingguo 1, Zhang Wei 1, THEORETICAL 1, CAI Guang-qi (Department of Electrical Engineering, Shandong Institute of Light Industry, Jinan 250100, China 2. School of Mechanical Engineering, Northeastern University, Shenyang 006 ) mechanical capacity and capability speed grinding system is to limit the grinding efficiency of the main constraints. This paper studies the feasibility constraints speed grinding system has been extreme efficiency HEDG model under multiple constraints by theoretical analysis. The experimental results agree well with the theoretical values. Efficiency constraint models generally efficient grinding can be considered an extension of the ordinary grinding, in essence, is the finishing process efficiency. Ultra-high-speed deep grinding process can be limited to the finishing and processing into finished products directly from the casting and forging blanks. Shown in Figure 1, high efficiency deep grinding process equivalent to the traditional process of Hogging, roughing, semi-finishing and finishing combination, not only to ensure the quality of the final piece, but also to achieve high metal removal rates. The workpiece can be a single process of forming general quality requirements, high quality requirements of the workpiece, which can effectively shorten the processing route for HEDG super finishing. Compared with ordinary turning, milling, grinding deep and efficient 90 hours can be shortened compared with Vertical Roller Mill processing time can be shortened 98. Ultra-high speed grinding process itself deep processing system capacity is the main constraint. The main constituent elements of the ability to analyze and evaluate the system for determining the efficiency deep grinding parameters and processing as well as limit the scope of the grinding efficiency is important. Constraints of a system of ultra-high speed grinding wheel 1.1 intensity constraint studies show that: ultra high speed high efficiency deep grinding wheel CBN grinding ratio can reach more than 20,000, is known as semi-permanent Shandong Institute of Light Industry wheel, abrasive wear their own fine abrasive surface wear and chipping small. As a single ultra-high speed plating wheel is the main form of grinding wheel, the wheel base metal and other strong base, ultra high-speed grinding wheel currently the highest line speeds of up to 500 m / s. The maximum shear ordinary flat wheel to tensile stresses appear in the wheel the inner edge of the hole, can be expressed as: where ρ is the material density matrix ν is Poisson's ratio and R is the matrix, the outer diameter of the wheel speed ω.

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