Metal Processing and Manufacturing

Metal Processing

Processing of metals should be carried out carefully

Quenching and Hardening

Hardened by heating and cooling rapidly, produce very hard but brittle metal

Annealing

Softening process where metals are heated and then cool slowly

Tempering

heating a hardened metal and cooling slowly, produces a metal that’s hard and less brittle

Cold Working

strengthening of metal by changing its shape without use of heat

Casting

Melting and molding, molten is poured into a mold where the metal take shape used in jewelry

Expandable Mold Casting

mold must be destroyed to remove the metal

Permanent Mold Casting

made of ductile material and can be used repeatedly

Powder Processing

treats powdered metals with pressure and heat to form different shapes

Forming

raw metal is mechanically manipulated into a desired shape

Deformation

bending, rolling, forging, and drawing. this process includes metal forming and sheet metalworking

Bulk Processes

a type of deformation that is characterized by large deformations and shape changes. surface area is small and includes rolling, forging l, extrusion and wire and bar drawing

Sheet Metalworking

type of deformation that is performed on metal sheets, strips snd coils having a high surface area, use a punch and die to form the piece, bending drawing and shearing

Machining

any fabrication that removes a section of the metal, also known as material removal processing

Machining Operations

type of machining, a cutting operations using cutting tools that are harder than metal of the product

Abrasive Machining

machining, material is removed by abrasive particles that normally form a bonded wheel

Nontraditional Processes

machining, use lasers, electron beams, using a more modern process instead of traditional cutting and grinding tools

Joining

one of the last steps of the metal manufacturing process, includes welding, bolting and adhesives

Finishing

includes everything from galvanization to powder coating and can take place throughout the manufacturing process