engineering

• what does a ferrous metal mean ?


  it contains iron and is magnetic
• What is a non ferrous metal?

  it does not contain iron
• give an example of a ferrous metal

  steel
• give an example of a non ferrous metal


  aluminium
• what is a surface finish for?

  appearance

  protection
• what is an example of a surface finish?

  • polish
  • brush
  • spray paint
  • galvanising
  • chrome plating
• what are the two methods of joining metal together?

  • semi permanent
  • permanent
• what does a semi permanent join mean?

  a temporary join of two materials that can be taken apart without damaging the product
• what does a permanent join mean?

  a join of two materials that can not be taken apart which means damaging the product if you were to take it apart
• what is an example of a semi permanent join?

  nut and bolt
• what is an example of a permanent join?

  welding
• what is the definition of a jig?

  a device that allows to locate a part in the right position so that it can be altered quick and accurately
• what can put a chamfer on a material?

  • lathe
  • file
  • milling machine
• what is a chamfer?

  a 45 degree angle cut out to make a sharp corner not dangerous
• give an example of a safety precaution

  • wear goggles/glasses
  • wear apron
  • long hair tied back
  • no loose clothing
  • protective boots/ shoes
• what does PPE stand for?

  personal protective equipment
• what is a milling machine?

  is a three dimensional drill with which any shapes can be cut out because the tool can move in all directions
• What is an alloy?

  a mixture of two or more metals