Engineering design, Mechanical Engineering

1) State five factors that must be considered when choosing a material. Discuss the importance to the engineer of each of these factors.

2) An engineer is planning to design a small boat: he has the choice of aluminium or steel. From the information below make an informed decision, with justifications, on which material should be used

 

Aluminium

Steel

Weight

2.65 tonnes/m3

7.86 tonnes/m3

Yield strength

275 MPa

205 MPa

UTS

310 MPa

345 MPa

corrosion

Excellent

Poor

You should comment on each of the above material characteristics for each material before making your choice.

3) When designing a product this must be systematic. Briefly discuss what stages need to be considered when designing a product from 'scratch'.

4)

a) List what factors you would need to consider for a systematic approach to  the design of a new product.

b) Comment on the properties that a operational and saleable product must have e.g a new car.

Posted Date: 3/18/2013 3:47:32 AM | Location : United States







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