Metal Moulding Flashcards
1
Q
Extrusion…
What types of metals?
What happens
A
Non ferrous & non ferrous alloy; must have low melting points (below 1000^)
Metal is put in a hopper and revolved heaters by an archimedean screw; molten. The metal is then extruded though a simple dye and cooled. It is an infinite process which is cut to length.
2
Q
What are permanent joining methods?
A
Soldering, brazing, riveting, welding (including oxy-acetylene, MIG and spot)
3
Q
What are temporary joining methods?
A
Self-tapping screws, machine screws, nut and bolt
