巴氏合金轴瓦内表面镜面加工

Mirror Face Machining of Inner Face of Babbitt Metal Bearing Shell

轴瓦刮削加工不同于车削加工,它是在主、副偏角均为0°,即在主、副切削刃成为一条切削刃,刮削刀刃微量吃刀深度的情况下,在被加工表面的全长上,同时去除材料的一种加工方法,因此理论上在加工表面没有残余面积存在。在刮削加工过程中,刀刃对已加工表面还产生挤压,碾压光刮削刃产生的鳞刺,使被加工表面质量进一步提高。刮削后的表面可达到镜面(粗糙度值Ra0.1μm)。

Bearing shell scraping is different from turning machining. Bearing scraping is a kind of processing method that simultaneously removes material when processing the total length of surface and does not have a residual area on surface theoretically, On the condition of both main and vice cutting angle are 0°, that is the main and vice cutting edge as a same edge, the scraping blade has trace depth penetration of a cutting tool. During bearing scraping, the surface scraped are squeezed by the blade and the burrs which makes the surface rougher are pressed. So the suirface quality is increased more. After scraping , the surface is mirror face and its roughness value is Ra0. 1μm.