Re-distribution Flashcards
Press Forming
It involves pressing sheets of metal to form a shape
What is press forming used in?
Car body panels, cones, metal seats
What is spinning?
Circular sheet metal components which are around a central axis can be produced by pushing a metal blank onto a rotating former
Cupping/deep drawing
Used to form tube like shapes such as cans. The material is pushed down to form a tube shape.
What is the difference between cupping and deep drawing?
Deep drawing is when the depth is bigger than the diameter
Forging
Forging is a manufacturing process involving the shaping of metal using localised compressive forces.
What is the production type for forging?
One off production
What is drop forging
A “hammer” is raised and dropped onto the workpiece to deform it according to the die.
What production type is drop forging used in
Mass or batch
Bending
Metal can be bent hot or old and sheet metal can be folded in a similar way to heated sheet thermoplastics.
Sand casting
Molten metal is poured into a prepared cavity in a sand mould and allowing it to solidify.
Investment Casting
A shell mould is built up around a wax pattern that can be melted away leaving a cavity that is filled with molten metal
Die casting
Metals such as pewter and silver can be cast into jewellery and other items using moulds carved or cult into MDF, silicone or vanished rubber
MIG welding
Arc welding process in which a continuous solid wire is fed through the welding gun and into the weld.
TIG welding
TIG generates heat from a tungsten electrode to the metal surface to be weld. The heat is sufficient to melt the joint edges.
Spot welding
Two metal sheets are joined by heat and pressure being applied from a current to the sheet.
What is Oxy-acetylene welding used to join?
It is used to join mild steel using pressure.
Soldering
Metal is joint by melting solder
Brazing
permanent way of forming metal by melting a brazing rod between two parts
Riveting
A smooth cylindrical shaft is pressed into sheets of material to join them.
What are self tapping screws?
Screws that taps its own hole as it is drilled
Machine screws
Machine screws are screw’s designed to hold machinery together
Nuts and bolts
Nuts and bolts are parts that work together to whole pieces of material together from either side.
when is soldering most commonly used?
electronics, plumbing, roofing, automotive, stained glass and jewelry.
Why are self tapping screws commonly used
Commonly used to secure wood, plastic, metal or brick together.
What materials is tig welding used for
Steel, chromoly, aluminium, magnesium, brass bronze and gold
What process is commonly used for bridges, planes and bolts?
Riveting
Why is riveting used in aircraft?
They are stronger and more durable than welder joints.
What methods are temporary?
Self Tapping screws,
Nuts and bolts,
Machine screws
How does oxy-acetylene welding work?
Oxygen and acetylene is combusted and the edges of the two pieces of metal are melted and fused together
