Plating, Finishing, and Coating: State-of-the-Art Assessment

This report focuses on the surface finishing of metals or metal finishing as it is usually called. Because of the wide range of techniques used and the similarity between some of the techniques, a classification system was devised to organize the presentation of the material. Metal finishing activities have been divided into (1) pretreatments, which include cleaning and surface preparation, (2 ) surface modification or coating, and (3) post-treatments, which include thermal diffusion for alloying and curing of paint films. grouped together according to whether mechanical , chemical , electrical , electrochemical , thermal, or physical phenomena are involved. Some techniques require a combination of these phenomena to be effective. discussion is given of past, present, and projected future energy consumption in manufacturing industries and in particular with respect to SIC 34 "Fabricated Metals", and SIC 347 "Coating, Engraving and Allied Services". growth in energy consumption of 2 to 3% is projected through the year 2000. Electrical energy will form a larger part of the energy/fuel mix. Developments in metal finishing that will influence energy consumption and the energy/fuel mix are briefly discussed. Under each category the techniques are Following process descriptions, a