basic forming process for materials

Question 1

casting

Answer 1

heating up material
place into mould

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

Question 2

rolling

Answer 2

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

Question 3

extruding

Answer 3

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

Question 4

cutting

Answer 4

removal of unwanted materials

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

thermal process
- plasma cutting, laser cutting

Question 5

fabricating

Answer 5

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

Question 6

JOINING — METALLURGICAL — welding

Answer 6

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

Question 7

JOINING — METALLURGICAL — soft soldering

Answer 7

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

Question 8

JOINING — METALLURGICAL — brazing and silver soldering

Answer 8

soldering but higher temperature used to melt the filler metal

Question 9

JOINING — mechanical joining

Answer 9

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