December 2023
Intermediate to advanced
1316 pages
46h 2m
English
Some products, such as paper clips, nails, steel balls for bearings, screws, and bolts, are made of only one component; however, almost all products are assembled from components that have been made as individual parts. Even relatively simple products consist of at least two components, joined by various means. Note, for example: (a) the eraser at the end of an ordinary pencil is attached with a metal sleeve; (b) knives have wooden or plastic handles that are attached to the metal blade with fasteners; and (c) cooking pots and pans have metal, plastic, or wooden handles and knobs, attached to the pot by various methods.
On a much larger scale, observe power tools, washing machines, motorcycles, ships, ...
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