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Metalworking print that page


Metalworking is a science, art, hobby, industry and trade. Its historical roots span cultures, civilizations, and millennia. Metalworking has evolved from the discovery of smelting various ores , producing malleable and ductile metal useful for tools and adornments. Modern metalworking

Rolling (metalworking) print that page


In metalworking , rolling is a metal forming process in which metal stock is passed through a pair of rolls. Rolling is classified according to the temperature of the metal rolled. If the temperature of the metal is above its recrystallization temperature, then the process is termed as

Stamping (metalworking) print that page v · d · e Metalworking   Forming , fabrication , and finishing General Fabrication   · Piece work   · Sheet metal Forming processes Coining   · Drawing   · Electrohydraulic | 2011/5/25 15:06:32

Polishing (metalworking) print that page

Polishing is often used to enhance the looks of an item, prevent contamination of medical instruments, remove oxidation, create a reflective surface, or prevent corrosion in pipes. [ 3 ] In metallography and metallurgy , polishing is used to create a flat, defect-free surface for examination | 2011/3/2 19:37:13

Clinching (metalworking) print that page

The tools consist typically of a punch and a die. There are two primary types of dies: solid "fixed cavity" dies, and dies with moving components. The punch forces the two layers of sheet metal into the die cavity forming a permanent connection. The pressure exerted by the punch forces the | 2011/9/29 2:56:06

Shearing (metalworking) print that page


A punch (or moving blade) is used to push the workpiece against the die (or fixed blade), which is fixed. Usually the clearance between the two is 5 to 10% of the thickness of the material, but dependent on the material. Clearance is defined as the separation between the blades, measured at

Casting (metalworking) print that page


In metalworking , casting involves pouring liquid metal into a mold , which contains a hollow cavity of the desired shape, and then allowing it to cool and solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process. Casting

Blanking (metalworking) print that page


Simple blanking operations utilize pancake dies . Contents 1 Fine blanking 1.1 Advantages & disadvantages 2 References 2.1 Notes 2.2 Bibliography [ edit ] Fine blanking Typical fine blanking press cross section Fine blanking is a specialized form of blanking

Bending (metalworking) print that page


In press brake forming, a work piece is positioned over the die block and the die block presses the sheet to form a shape. [ 1 ] Usually bending has to overcome both tensile stresses as well as compressive stresses . When bending is done, the residual stresses cause the material to spring

Broaching (metalworking) print that page


Broaching is used when precision machining is required, especially for odd shapes. Commonly machined surfaces include circular and non-circular holes, splines , keyways , and flat surfaces. Typical workpieces include small to medium sized castings , forgings , screw machine parts, and stampings