Unit One Vocab A-B Flashcards
Abrasive
A material used to cutt other materials softer than itself
Allowance
The minimum clearance (or max) between two mating parts, such as a shaft and a hole
MMC Hole - MMC Shaft = Allowance
Alloy
A mixture of two or more elements - at least one of which is metallic melted together to form a new material
Angular Dimension
A dimension measured in degrees, minutes and seconds
Anneal
The process of slowly cooling hot iron-based metals to remove stresses and reduce the hardness
Arbor
A shaft upon which a cutting tool is mounted, or a spindle for holding the workpiece.
Assembly Drawing
A drawing that shows the relationships of the various components as they fit together.
Auxiliary View
An orthographic view projected angularity, used to show features appearing on inclined or oblique surfaces
Oblique: A plane not perpendicular to any of the principle planes.
Axis
A center line about which parts are symmetrically arranged that may or may not revolve upon it.
Baseline Dimensioning
A system of dimensioning used to locate features of a part from a common set of datums
Basic Dimension
An exact value used to describe the size, shape or location of a feature without tolerance.
Basic Size
The exact theoretical size from which limits size are derived by the application of allowances and tolerances.
Bevel
A flat, slanted surface between two other surfaces at right angles to one another.
Bilateral
Used to indicate that two sides are involved (bilateral tolerances too)
Blind Hole
A hole that does not pass all the way through (common in thick material)
