Metalworking general terms Flashcards
Rolling
Physical putting a metal sheet by putting it between two rollers to reduce thickness. similar to dough.
Casting
Physical Pourign a liquid metal into a mold to form different shapes.
Forging
Heating a metal in a furnace and then removing slage from it. usually beating it with a hammer.
Refining
Chemical purification of an impure metal. Chemcial
Drawing
Physical uses tensile forces to elongate metal and make it thinner.
Where is the force applied in Drawing
Near the area of compression.
Where is the force applied in Rolling
the force acts from a vertical force compression. and a sliding force will act on the grains.
Ductility
The ability of a metal to be hammered thin or rolled into wire. Mechanical
Why do metals love to combine with o
They have open electron postions. metals lose electorns.
Coefficent of Thermal expansision
How fast an object will expand to absorb heat. the higher it has the more negative impact it will have on the mechanical properties of metals
Magnetic properties of metals.
Ferrous materials are magnetic. has to do with atomic shape so iron and steel at high temperature are not. Bccs yes, FCCs no
Joinabiility
the ability of metals to combine or join othgeter. physical.
Weldability
the ability of a metal to be fabricated by one of the welding process. Other properties
Machinability
The ability of a metal to be cut. depends on hardness and strength. other
Malleability
the abilitlity of a metal can be hammered down with applied force. Stress
