Fig. 1 shows a selection of metal stock forms available from a supplier. The metal has been selected for its specific properties that make it suitable for t...
Question 1 Report
Fig. 1 shows a selection of metal stock forms available from a supplier. The metal has been selected for its specific properties that make it suitable for this application. Different metals have different properties that affect how they can be worked and used. The choice of metal depends on the functional requirements of the product.
All the bits are smooth. It works in rain and sun. It can be used on its own.
The surface of the polypropylene can be improved by applying a anodising. Ergonomic factors have influenced the shape and dimensions of the design.
(a) Name the stock form shown at A. [1]
(b) Name the stock form shown at D. [1]
Answer Details
(a) The stock form shown at A is a square tube (also called box section). [1]
The cross-section shows a square outer profile with a smaller square hollow inside (indicated by the dashed lines), confirming it is a tube rather than a solid bar. Square tube is available in various sizes and wall thicknesses, commonly in mild steel or aluminium. It combines good structural rigidity with relatively low weight, making it suitable for frameworks, furniture frames, and general fabrication.
(b) The stock form shown at D is a round bar (also called rod or solid round). [1]
The cross-section shows a solid circle with no internal void. The dashed lines extending from each side indicate its length. Round bar is one of the most common metal stock forms, available in a wide range of diameters and materials. It can be turned on a lathe to produce cylindrical components such as shafts, pins, axles, and dowels.
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