MET 14100-001/002 Materials I Assignment 2 Due Date: - 01/25/2017 (by 11:59 pm)
ID: 1842430 • Letter: M
Question
MET 14100-001/002
Materials I
Assignment 2
Due Date: - 01/25/2017 (by 11:59 pm)
Keep track of the due date. No late submissions will be entertained.
This assignment should be submitted through the blackboard only.
There is no minimum or maximum page limit for this assignment.
Question: - Identify an object in your house that you find useful and answer the following questions,
1) Evaluate and identify the material used in the object.
2) Evaluate the design.
3) Identify what factors influenced the design and why.
4) Identify what factors influenced the manufacturer to select that material for the object.
Example: a cutlery knife – stainless steel for corrosion resistance. A stainless steel that can be hardened so a sharp edge can be applied and it lasts a long time. A stainless steel that is cost effective. The back edge of the knife needs to be thin to provide leverage and rigidity when carving. This is just an example. Please feel free to apply your innovation to complete this assignment.
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Explanation / Answer
The Telephone
Copper (wiring): Its excellent ductility and high conductivity assure its use in modern society,
Chromites (plating): The only ore of chromium, chromite is a major constituent in stainless steel,
Silver (Electronics): This mineral is used in jewelry, tableware, coins, scientific equipment and in photographic processes,
Graphite (Batteries): It occurs most commonly in metamorphic rocks and is used as a lubricant, the manufacture of refractory crucibles and of course, pencils. It is easily distinguished by its greasy feel and the dark marks it leaves on hands.
Alexander Graham Bell: Bells first prototype consisted of a thin sheet of metal (called a diaphragm) held in front of an electromagnet. When the sound (caused by his voice) struck the diaphragm, electricity was generated in the coils of the electro-magnet. These electric currents were transmitted to a telephone in another room along a wire. When they passed through the coils of an identical electro-magnet in the other room (the receiver) they caused the receiver diaphragm to vibrate and create the sound. His assistant Watson heard Bell shouting, ''Mr Watson , come here I want you''. The first conversation took place between London and Europe in 1891 and by 1923 it was possible to telephone someone from London to New York.
As the time passed developing better product through design and adding values to the previous product, a details analysis is done what product to choose the above mention material are better as compared to others.
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