How to Set Surface Roughness (Ra) on Iron Castings: Green vs Resin vs Shell
surface finish green sand resin shell Who this helps: Design Engineers / Buyers who must specify and verify Ra on iron castings (gray/grey & ductile).What you’ll get: measured-style ranges for as-cast Ra by process/size, what moves those numbers (sand/coating/temperature/blast), and copy-paste drawing notes so suppliers quote apples-to-apples. Prepared by YB Metal Solution. Want a surface…