Chapter 7 EFFECT OF MANUFACTURING PROCESSES ON …
Materials and Process Selection for Engineering Design: Mahmoud Farag 13 Table 7.2 Approximate values of surface roughness and tolerance that are normally obtained with different manufacturing processes Process Typical tolerance (±) Typical surface roughness (Ra) (mm) (in x 103) P LQ Sand casting 0.5-2.0 20-80 12.5-2.5 500-1000