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与研磨加工对比,超精加工能更快地使工件达到精加工的目的.例如,预加工的粗糙度为R_a0.4μm的表面,经一道超精工序后,可降到R_a0.02μm或R_a0.01μm,而研磨则要经过4～5次才能达到.因此,以超精为终加工的方法已在轴承行业广泛的得到应用.一、超精加工的原理与特点如图12-1所承,超精加工的动作如下:油石1以低压力P弹性地压在工件2上,油石沿工件表面作快而短促的往复振动,其振动频率为f,振幅为a,工件以低速n旋转;S为纵向走刀量.
In contrast to grinding, superfinishing enables the workpiece to finish more quickly, for example, a pre-machined surface with a roughness of R_a of 0.4 μm can be reduced to R_a0.02 μm or R_a0 after a finishing pass. 01μm, and grinding will have to go through 4 to 5 times to achieve.Therefore, the method of finishing with super precision has been widely used in the bearing industry.One, the principle and characteristics of super finishing as shown in Figure 12-1, Superfinishing action is as follows: Whetstone 1 at low pressure P elastic pressure on the workpiece 2, whetstone along the workpiece surface for fast and short reciprocating vibration, the vibration frequency f, the amplitude of a, the workpiece rotating at low speed n; S For the vertical amount of walking.