Glossary

Joint

The location where two or more members meet, are to be met, or have been fastened together.

Joint clearnance

The distance between the faying surfaces of a joing.

Joint design

Joint deometry, including the required dimensions of the welded/brazed/bonded joint.

Joint geometry

The shape and dimensions of a joint in cross section.

Jet pulverizer

A machine that comminutes metal pieces, ores, or agglomerates.

Jig

Mechanism or fixture for holding a part and/or guiding the tool during machining, spraying or assembly operation.

Journal

The part of a shaft or axle that rotates or oscillates relative to a radial bearing. A journal is part of a larger unit, such as a crankshaft. It is preferred that the term "shaft" be kept for the whole unit.