Parts must be thoroughly cleaned before surfacing. Name three methods used for cleaning before surfacing.

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Answered by GPT-5 mini AI
- Solvent degreasing (wipe, soak, or vapor degreasing) — removes oils, greases and light soils using solvents or aqueous detergents.
- Abrasive/mechanical cleaning (sandblasting, shot blasting, grinding or wire-brushing) — strips rust, scale, old coatings and surface oxides and provides a clean, keyed surface.
- Chemical cleaning/pickling (acid or alkaline baths) — dissolves oxides and scale and removes corrosion products from the base metal.