Glossary

ADAPTOR: A block used to mount a die to a press slide.
AERIAL CAM: A cam attached to the punch holder with a driver on the die holder. Also called a flying cam.
AIR BEND DIE: A die in which the blank is bent without it sticking to the bottom of the die. Blank contact with the die is made at only three lines: the nose line of the punch and the two edges of the die opening.
AIR BENDING: Sheet metal-forming operation in which a workpiece is bent without the punch and die closing completely on the workpiece.
AIR CUSHION: Actuated by a large pressurized cylinder, located beneath the bed of a press, used to apply upward pressure to the lower die.
AIR DRAW: A draw operation performed in a singleaction press with blank holder pressure supplied by an air cushion.
AIR HARDENING: The process by which an alloy steel is heated to the proper hardening temperature and then allowed to cool in air.
AISI: Acronym for American Iron and Steel Institute.
ALLOY: Pure metal that has been melted together with other chemical elements, forming a new metal structure having specific physical and mechanical properties.
ALUMINUM: Lightweight chemical element of a silver-white metallic color. Aluminum has an atomic number of 13, a melting point of 650 C, and a boiling point of 2450 C. Aluminum is denoted by the symbol Al.
ALUMINUM ALLOY: Pure aluminum that has been melted with one or more other chemical elements into a new...

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Die Design Fundamentals, 3rd Edition