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AMT 1216
Recip Vocab
| Term | Definition |
|---|---|
| Abrasion | an area of roughened scratches |
| Brinelling | one or more indentations on bearing races usually caused by high static loads or applications of force during installation |
| Burning | surface damage caused by excessive heat as a result of improper fit or insufficient lubrication |
| Burnishing | polishing of one surface by sliding contact with a smooth harder surface |
| Burr | a sharp or roughened projection of metal usually caused by machine processing |
| Chafing | describes the wear caused by rubbing action between two parts |
| Chipping | the breaking away of pieces of metal caused by excessive stress concentrations or careless handling |
| Corrosion | loss of metal by a chemical or electro process |
| Crack | a partial separation of material usually caused by vibration, overloading, internal stresses, defective assembly or fatigue |
| Cut | loss of metal usually to an appreciable depth caused by a sharp object |
| Dent | a small rounded surface depression usually found in sheet metal usually caused by impact with another object |
| Errosion | loss of surface metal caused by the mechanical action of foreign objects such as grit or fine sand |
| Flaking | the breaking loose of small pieces of metal off of coated surfaces caused by defective plating or excessive loading |
| Fretting | a form of surface corrosion caused by minute movement between two parts clamped together under considerable pressure |
| Galling | a severe condition of chaffing or fretting in which a transfer of metal from one part to another occurs |
| Gouging | a furrowing condition in which a displacement of metal occurs. Gouging is usually caused by a piece of metal becoming trapped between moving parts |
| Grooving | a recess or channel with rounded and smooth edges that usually results from improperly aligned parts |
| Inclusion | presence of foreign or extraneous material that is wholly confined within a portion of metal |
| Nick | a sharp sided gouge or depression with a “V” shaped bottom usually caused by careless handling |
| Peening | a series of blunt surface depressions |
| Scuffing or Pick Up | a buildup or rolling of metal from one area to another which is usually caused by insufficient lubrication, clearance or foreign matter |
| Pitting | small hollows of irregular shaped in the surface usually caused by corrosion |
| Scoring | a series of deep scratches caused by foreign particles between moving parts or careless overhaul procedures |
| Scratches | shallow thin lines or marks varying in degree of depth and width caused by improper handling |
| Spalling | a bearing defect in which chips of the hardened bearing surface is broken |
| Stain | a localized change in color that is noticeably different in appearance from the surrounding area |
| Upsetting | a displacement of material beyond the normal surface contour commonly referred to as a bulge or bump |
Created by:
Ms.Fietzek
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