Automotive Materials and Processes Assignment

Penalties for Late Submissions

? Late submission of any item of coursework for each day or part thereof (or for hard copy submission only, working day or part thereof) for up to five days after the published deadline, coursework relating to modules at Levels 0, 4, 5, 6 submitted late (including deferred coursework, but with the exception of referred coursework), will have the numeric grade reduced by 10 grade points until or unless the numeric grade reaches or is 40. Where the numeric grade awarded for the assessment is less than 40, no lateness penalty will be applied.

? Late submission of referred coursework will automatically be awarded a grade of zero (0).

? Coursework (including deferred coursework) submitted later than five days (five working days in the case of hard copy submission) after the published deadline will be awarded a grade of zero (0).

? Where genuine serious adverse circumstances apply, you may apply for an extension to the hand-in date, provided the extension is requested a reasonable period in advance of the deadline.

This Assignment assesses the following module Learning Outcomes (Take these from the module DMD):

1. Be able to identify and specify the principal materials and processes used in vehicle body manufacturing and other automotive applications.

2. Understand the properties and service requirements of automotive materials and the reasons for their selection.

3. Have knowledge of developing materials and technologies for vehicle body manufacture and other automotive applications.

4. Be able to identify, assess and select materials and processes for a variety of automotive applications.

5. Be able to evaluate the external influences on the vehicle body manufacturing process.

6. Be able to effectively plan their work and communicate the resulting information.

Assignment Brief:

Answer the following questions:

(Note the page limit given for each question or part of a question). Advice: Read the lecture slides first before answering the questions; you may look for additional information, but read the lecture notes first.

1. a) In selecting a material for an automotive body, a number of considerations need to be taken into account including (i) performance and (ii) cost. Summarise the factors that need to be considered for each of the above cases and provide reasons why each factor needs to be considered. (25%) (Maximum of one page)

b) Compare the effect of each factor considered in Question 1(a) for (i) a steel monocoque structure and (ii) an aluminium spaceframe structure. (25%) (Maximum of one page)

2. a) Resistance spot-welding is one of the main joining processes used for joining automotive mild steel sheet. Describe the process of resistance spot-welding and discuss the reasons that have made it such a dominant process for mild steel in automotive body applications. (25%) (Maximum of one page)

b) Alloys that are often thought to have good corrosion performance can have poor corrosion resistance when in a crevice environment.

(i) Give one give example of where in the vehicle body this type of corrosion can be take place and describe the mechanism by which this type of corrosion takes place. (13%)

(ii) Describe what measures are taken to prevent crevice corrosion for the example you gave above. (12%) (the combined parts of Question 2(b)(i) and 2(b)(ii) must not exceed one page) Submission Requirements: Submit on-line. The submission deadline is the 29 th of June 2020 at 15:00 hours. This assignment is worth 20 % of the overall assessment for this module. Marks awarded for: Details are shown in the Assignment Brief (see above).

A note to the Students:

1. For undergraduate modules, a score above 40% represent a pass performance at honours level.

2. For postgraduate modules, a score of 50% or above represents a pass mark.

3. Modules may have several components of assessment and may require a pass in all elements. For further details, please consult the relevant Module Guide or ask the Module Leader.