Describe the process of compression moulding when used to manufacture aircraft components. (3 marks)
--- 7 WORK AREA LINES (style=lined) ---
ENGINEERING, AE 2023 HSC 21d
Draw, label and describe the microstructure of a thermosetting polymer. (3 marks)
--- 0 WORK AREA LINES (style=lined) ---
Show Answers Only
Show Worked Solution
→ Thermosetting polymers have a three-dimensional network structure, where polymer chains are cross-linked by covalent bonds in a network of polymer chains.
♦♦ Mean mark 36%.
ENGINEERING, PPT 2018 HSC 26d
The components of the bearing assembly used in the fidget spinner are shown.
The retainer can be made from either glass fibre-reinforced nylon or stainless steel.
Compare the in-service properties of these materials for use in the retainer. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
Show Answers Only
Show Worked Solution
ENGINEERING, AE 2019 HSC 25b
Some materials have properties that allow them to be used in the manufacture of both modern racing yachts and aircraft. These materials include Kevlar® aramid fibre, carbon fibre epoxy composites and aluminium alloys.
Complete the table by providing a property which makes each of these materials suitable for the manufacture of both yachts and aircraft. (3 marks)
--- 0 WORK AREA LINES (style=lined) ---
Show Answers Only
Include one of the properties in the second column:
Show Worked Solution
Include one of the properties in the second column:
ENGINEERING, AE 2021 HSC 10 MC
The diagram illustrates a method of forming a thermosetting polymer.
Which method is illustrated?
- Extrusion
- Calendering
- Injection moulding
- Compression moulding