Glossary
“The beginning of wisdom is to call things by their right names.”
—CHINESE PROVERB
n means noun; v means verb
acme (n) Screw thread form.
addendum (n) Radial distance from pitch circle to top of gear tooth.
allen screw (n) Special set screw or cap screw with hexagon socket in head.
allowance (n) Minimum clearance between mating parts.
alloy (n) Two or more metals in combination, usually a fine metal with a baser metal.
aluminum (n) A lightweight but relatively strong metal. Often alloyed with copper to increase hardness and strength.
anneal (v) To heat and cool gradually, to reduce brittleness and increase ductility.
arc weld (v) To weld by electric arc. The work is usually the positive terminal.
babbitt (n) A soft alloy for bearings, ...
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