basic forming process for materials Flashcards

1
Q

casting

A

heating up material
place into mould

die casting: use permanent mould and extensively used for non-alloy casting

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2
Q

rolling

A

metal passed through rollers (change in thickness and cross section)
- rolling can be done at high temps (hot rolling), or cold temp (cold rolling)
- extensively used technique for forming metals

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3
Q

extruding

A

material passed through die at elevated temperature
- like squeezing toothpaste from a tube

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4
Q

cutting

A

removal of unwanted materials

mechanical cutting
- shearing, sawing, abrasion, grinding, drilling

thermal process
- plasma cutting, laser cutting

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5
Q

fabricating

A

assembling an item from various components using range of cutting, machining, forming and joining processes

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6
Q

JOINING — METALLURGICAL — welding

A

(fusion)
joining materials through process of mixing, melting and solidification

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7
Q

JOINING — METALLURGICAL — soft soldering

A

melting a lower melting point material between work pieces to form bond between them WITHOUT melting the work pieces

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8
Q

JOINING — METALLURGICAL — brazing and silver soldering

A

soldering but higher temperature used to melt the filler metal

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9
Q

JOINING — mechanical joining

A

fastening or joining materials mechanically
- screws
- bolts
- pins
- clips
- nails

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