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fretting corrosion

   Also found in: Medical, Wikipedia 0.01 sec.
fretting corrosion [′fred·iŋ kə′rō·zhən]
(metallurgy)
Surface damage usually in an air environment between two surfaces, one or both of which are metals, in close contact under pressure and subject to a slight relative motion. Also known as chafing corrosion.


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Capable of being close coupled with standard NEMA and IEC frame motors, the SWIFT motor connection system eliminates fretting corrosion.
Type of metallic corrosion -- It may be external surface oxidation, galvanic corrosion, pitting, crevice corrosion, deposit corrosion, weld decay, fretting corrosion, internal oxidation, exfoliation, "white rust" or microbial corrosion.
Also, the machine spindle is protected from fretting corrosion, the repeatability of automatic tool change is improved, and even Z-axial movement during high speed rotation is eliminated since the face contact prevents the toolholder from being pulled up into the machine spindle.
 
 
 
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