engineering

• elasticity- the ability to stretch and return to its original shape after being stretched
• ductility- ability to be stretched without breaking
• malleability- ability to be pressed, spread-out or hammered
• hardness- ability to resist scratching, cutting or wear and tear
• work hardening- property changes due to to working
• brittleness- the ability to withstand stress without breaking or cracking
• toughness- resistant to breaking and bending
• tensile strength- retains strength when stretched
• compressive strength- very strong under pressure
• corrosive resistance- will it corrode in the environment it is working in
• ferrous metals- metals that contain iron and are magnetic.
• non-ferrous metals- metals that don’t contain iron, not magnetic
• ferrous metals- mild steel, high carbon steel, stainless steel, cast iron
• non-ferrous metals- aluminium, lead, copper, gold, brass
• alloys- duralumin, brass, stainless steel
• metal finishes- hammered finish, powder coating, spray paint, brush paint, knurled finish,polished
• centre lathe process- a cylindrical piece of metal is mounted on a rotating spindle
• facing- cutting the end of the workpiece to produce a flat surface
• knurling- embossing a patterned usually diamond shape on the surface of a metal part
• turning- process of creating conical shape on a workpiece
• drilling- creating a round hole in the workpiece using a drill bit secured to the tailstock
• parting- produces a cut off portion from the workpiece at the end go the machining cycle
• threading- precise operation performed on a lathe to create threads on the outer or inner surface
• chamfer- cutting an angled edge on the workpiece