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MODULE 5 SHEET METAL OPERATIONS

MODULE 5 SHEET METAL OPERATIONSSHEET METALWORKING Cuttingandformingthinsheetsofmetalusuall yperformedascoldworking Sheetmetal= (1/64)to6mm(1/4in)thick Platestock>6mmthick Advantage-Highstrength,gooddimensionalac curacy,goodsurfacefinish,economicalmassp roduction(lowcost). Cutting, bending ,drawingPARTSMADEBYSHEETM ETALFORMING Carbodies Aircraftfuselages Trailers Officefurnitureappliances Fueltanks CookwareSheet Metalworking Terminology Punch-and-die Toolingto perform cutting, bending , and drawing Stamping press Machine tool that performs most SHEET METAL OPERATIONS Stampings Sheetmetal productsA set of die and punch Press working of SHEET metalSHEET METAL OPERATIONS SHEARING BLANKING PUNCHING (PIERCING) bending STAMPING DRAWING DEEP DRAWING EMBOSSING SPINNING ROLL FORMINGSHEET METAL CHARACTERISTICSC haracteristics of metals important in SHEET point of sheared condition of sheetCrystallographic anisotropyMechanical fiberingCuttingOperation Shearing-usingamachinecalledpowershearor squareshear.

Sheet bending Sheet bending is defined as the straining of the metal around a straight axis. During bending operation, the metal on the inner side of the neutral plane is compressed, and the metal on the outer side of the neutral plane is stretched. Bending causes no change in the thickness of the sheet metal.

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