11-27-2007 Finishing

11-27-2007 Finishing - I. Secondary processing Machining...

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I. Secondary processing Machining General: grinding, planing, drilling, turning Specialty: EDM, chemical, laser, jets Heat treatment Recovery/recrystallization, age hardening, tempering Joining Metals: welding; brazing; soldering Polymers: adhesives Ceramics: diffusion bonding; adhesives Finishing  Surface treatments: polishing, plating, anodizing, painting Protects against: corrosion, oxidation, wear Enhances: smoothness, appearance
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Welding http://www.davewrightwelding.com/ Welding, in engineering, any process in which two or more pieces of metal are joined together by the application of heat, pressure, or a combination of both. Most of the processes may be grouped into two main categories: pressure welding, in which the weld is achieved by pressure; and heat welding, in which the weld is achieved by heat. Heat welding is the most common welding process used today. The original pressure process was forge welding. Forge welding was practiced for centuries by blacksmiths and other artisans. The metals are brought to a suitable temperature in a furnace, and the weld is achieved by hammering or other mechanical pressure. Forge welding is used rarely in modern manufacturing. The welding processes most commonly employed today include gas welding, arc
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This note was uploaded on 04/08/2008 for the course MECHENG 352 taught by Professor Hemker during the Spring '08 term at Johns Hopkins.

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11-27-2007 Finishing - I. Secondary processing Machining...

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