过盈配合表面质量
影响接触面的表面平滑度大小和有效干涉大小。表面平滑度不应用于完全平滑的表面。对于此类表面,有效干涉等于最小干涉和最大载荷能力。
采用特定加工方法进行的曲面质量检查。
平均粗糙度,Ra - 微米 [μm](微英寸 [μin])
| 50 | 25 | 12.5 | 6.3 | 3.2 | 1.6 | 0.8 | 0.4 | 0.2 | 0.1 | 0.05 | 0.025 | 0.0125 |
| (2000) | (1000) | (500) | (250) | (125) | (63) | (32) | (16) | (8) | (4) | (2) | (1) | (0.5) |
火焰切割 | - | + | - | | | | | | | | | | |
粗加工 | - | + | + | - | | | | | | | | | |
锯切 | - | + | + | + | + | - | | | | | | | |
切削、成型 | | - | + | + | + | - | - | | | | | | |
钻孔 | | | - | + | + | - | | | | | | | |
化学蚀刻 | | | - | + | + | - | | | | | | | |
放电 | | | - | +/- | + | - | | | | | | | |
铣 | | - | - | + | + | + | - | - | | | | | |
拉削 | | | | - | + | + | - | | | | | | |
铰孔 | | | | - | + | + | - | | | | | | |
电子束 | | | | + | + | + | - | - | | | | | |
激光 | | | | + | + | + | - | - | | | | | |
电化学 | | | - | - | + | + | + | + | - | - | | | |
镗孔、车削 | | - | - | + | + | + | + | - | - | - | - | | |
筒体磨光 | | | | | - | - | + | + | - | - | | | |
电解研磨 | | | | | | | -/+ | + | - | | | | |
滚柱滚光 | | | | | | | - | + | - | | | | |
研磨 | | | | - | - | + | + | + | + | - | - | | |
珩磨 | | | | | | - | + | + | + | - | - | | |
电抛光 | | | | | | - | + | + | + | - | - | - | |
抛光 | | | | | | | - | + | + | - | - | - | |
研磨 | | | | | | | - | + | + | - | - | - | |
超精加工 | | | | | | | - | - | + | + | + | - | |
砂型铸造 | - | + | - | | | | | | | | | | |
热轧 | - | + | - | | | | | | | | | | |
锻造 | | - | + | + | - | | | | | | | | |
硬模铸造 | | | | - | + | - | | | | | | | |
熔模铸造 | | | | - | + | - | - | | | | | | |
挤压 | | | - | - | + | + | - | | | | | | |
冷轧、退火 | | | | - | - | + | + | - | | | | | |
压铸 | | | | | - | + | - | | | | | | |
符号:
+:平均应用
-:较少应用
以上显示的是所列过程的典型范围。
在特殊的条件下,可以获得更高或更低的值。