Materials processes

Question 1

Rolling

Answer 1

Metal stock is passed through one or more pairs of rolls to reduce thickness, change cross-section, or improve surface finish and mechanical properties.

Question 2

Forging

Answer 2

Process of shaping metal by applying compressive forces, usually with hammers or presses, to produce parts with improved strength and toughness.

Question 3

Extruding

Answer 3

Metal is pushed or drawn through a die to create products with a consistent cross-sectional shape.

Question 4

Welding

Answer 4

Joining metals by melting their surfaces and usually adding filler material, resulting in a permanent metallurgical bond.

Question 5

Heat treating

Answer 5

Process of heating and cooling metals under controlled conditions to improve hardness, strength, toughness, or ductility, without changing their shape.

Question 6

Grinding

Answer 6

Material removal and finishing process in which an abrasive wheel removes small amounts of metal from a surface to achieve desired dimensions, surface finish, or shape.

Question 7

Plating

Answer 7

Surface finishing process in which a thin layer of metal is deposited onto the surface of a workpiece to improve corrosion resistance, appearance, wear resistance, or electrical conductivity.

Question 8

Machining

Answer 8

Material removal process in which a cutting tool removes material from a workpiece to achieve desired shape, size, or surface finish.