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MATERIALS REVISION - 1
V. Ryan © 2009
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|1. A number of materials are listed in the table below. Select four and complete the row. The first row has been completed for you. A number of materials are listed below the table.|
|ALUMINIUM - STEEL - CORRUGATED
BOARD - COPPER - POLYETHYLENE - PERSPEX - ACRYLIC
DUPLEX BOARD - FOIL LINED BOARD - NEWSPRINT - BRASS - POLYSTYRENE
|2. Select one of the materials.|
|3. Describe a manufactured product made from this material.|
|PROPERTIES OF MATERIALS (NOTES)|
STRENGTH - The ability of a material to stand up to forces being applied without it bending, breaking, shattering or deforming in any way.
ELASTICITY: The ability of a material to absorb force and flex in different directions, returning to its original position.
PLASTICITY: The ability of a material to be change in shape permanently. EG. Casting molten metal
DUCTILITY: The ability of a material to change shape (deform) usually by stretching along its length.
TENSILE STRENGTH: The ability of a material to stretch without breaking or snapping.
MALLEABILITY: The ability of a material to be reshaped in all directions without cracking.
TOUGHNESS: A characteristic of a material that does not break or shatter when receiving a blow or under a sudden shock.
HARDNESS: The ability of a material to resist scratching, wear and tear and indentation.
CONDUCTIVITY: The ability of a material to conduct electricity.
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INFORMATION ON PROPERTIES OF MATERIALS
1. Properties of Materials - 1
2.Properties of Materials - 2
3. Properties of Materials - Questions 1
4. Properties of Materials - Questions 2
|4. What makes this material the must suitable for the manufacture of the product you selected in question 3 ? You may wish to consider the physical properties of the material.|
|5. Most materials degrade over time. What does degrade mean?|
|6. Considering the material you selected - how would you protect it against degrading over time? You may wish to name and describe a finish that can be applied to its surface.|
|7. Materials are supplied in a range of shapes, sections and sizes. A number of materials are listed below. Draw a line from each material to the description of the way this type of material is supplied.|
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