Quick AnswerSurface finishing adds 5-50% to the base CNC machining cost. As-machined: 0% added cost. Bead blasting: 2-5%. Anodizing Type II: 5-10%. Powder coating: 8-15%. Zinc/nickel plating: 10-20%. Electropolishing: 15-30%. Hand polishing/buffing: 20-40%. Hard coat anodizing (Type III): 15-25%. Chrome plating: 25-50%. Higher quantities reduce per-unit finishing cost significantly. SOMI provides ...

Quick AnswerSurface finishing for CNC machined parts ranges from simple to advanced. For metals: as-machined (32-63 Ra), bead blasting (matte finish), anodizing (Type I, II, III for aluminum), powder coating (any RAL color), plating (chrome, nickel, zinc, gold), electropolishing (bright, clean surface), passivation (corrosion protection for stainless), and media tumbling (smoothing edges). For pla...