HS2440 Week 2 Iron Fabrication Flashcards
1
Q
Describe the process: wrought iron
compare wrought iron to steel
A
- heated in a forge, then hammered into shape
- quickly cooled in water, will impact the grain structure
- hammering can be used to combine wrought iron and steel together
- wrought iron is less refined, contains more slag (silica)
- steel has had more silica driven out onto the surface and disposed of (less silica content)
- steel 3% carbon, strengthens the iron, more brittle, less likely to be bent out of shape
- ## steel is a good cutting edge, harder
2
Q
describe process of combining iron and steel (damascening)
A
- wrought iron and steel are combined through fire welding
- grain sometimes visible through x radiography
- eg sword needs durability as well as flexibility, would be too brittle as pure carbon steel
- pattern welding is twisting metal together for mutual support and resulting spring in the metal (see diagram)
- Damascening is the art of inlaying different metals into one another
3
Q
diagram of brazing vs welding
A
- brazing uses a different alloy (eg copper)
4
Q
example of pattern welding in weapons (images)
A
5
Q
images of planishing and fluting iron (eg armour)
A
6
Q
The weald iron industry
A
7
Q
diagram of sandbox casting
A
8
Q
Rivets (diagram)
A
