A die like a drawing die, but without a blank holder.


Related Terms

LEAD-OUT GROOVE

A blank spiral groove at the end of a disk recording, generally of a pitch much greater than that of the recorded grooves, connected to either the locked or eccentric groove. Also known as throw-out spiral.

INSERT BIT

A bit into which inset cutting points of various preshaped pieces of hard metal (usually a sintered tungsten carbidecobalt powder alloy) are brazed or hand-peened into slots or holes cut or drilled into a blank bit. Also known as slug bit.

BLANK

1. To cut off the electron beam of a television picture tube, camera tube, or cathode-ray oscilloscope tube during the process of retrace by applying a rectangular pulse voltage to the grid or cathode during each retrace interval. Also known as beam blank. 2. The result of the final cutting operation on a natural crystal.

CHASE MORTISE

A mortise with a sloping edge from bottom to surface so that a tenon can be inserted when the outside clearance is A thread-cutting tool with many which restrains the blank from spreading during hob sinking.

HANDSET BIT

A bit in which the diamonds are manually set into holes that are drilled into a malleable-steel bit blank and shaped to fit the diamonds.

PILOT HOLE

1. In metal-forming operations, a prepunched hole in a metal strip into which the pilot component of the die enters in order to assure precise registration of the strip at each work station. 2. A small hole drilled ahead of a larger borehole. 3. A hole drilled in a piece of wood to serve as a guide for a nail or a screw or for drilling a larger hole.

OPENING DIE

A die head for cutting screws that opens automatically to release the cut thread.

MATCHED EDGES

Die face edges machined at right angles to each other to provide for alignment of the dies in machining equipment.

JET SPINNING

Production of plastic fibers in which a directed blast or jet of hot gas pulls the molten polymer from a die lip; similar to melt spinning.

HOT-CHAMBER DIE CASTING

A die-casting process in which a piston is driven through a reservoir of molten metal and thereby delivers a quantity of molten metal to the die cavity.

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