Exam 24: Other Welding Processes

In _____________________ welding, a plasma jet is produced by forcing gas to flow along an arc restricted electromagnetically as it passes through a nozzle.

Tungsten carbide-type electrodes are tougher than chromium carbide electrodes.

_____________________ is defined as the process of obtaining desired properties or dimensions by applying, using oxyfuel or arc welding, an integral layer of metal of one composition onto a surface, an edge, or the point of a base metal of another composition.

Fluxes or filler metals are needed for the resistance welding process.

____ is the period during which the electrode force is applied and the welding current is shut off.

The welding current required to make a resistance weld must be at a very high voltage but low amperage.

____ welding is a process for joining similar and dissimilar metals by introducing high-frequency vibrations into the overlapping metals in the area to be joined.

Ultrasonic welding is a form of friction welding.

Two advantages of plasmas are higher temperature and better heat transfer to other objects.

No melting occurs during the ultrasonic welding cycle.

In ____ welding, fusion is obtained by directing a highly concentrated beam of coherent light to a very small spot.

_____________________ is the process of spraying molten metal onto a surface to form a coating.

In ____ welding, fluxes and filler metals are not required, electrical current does not pass through the weld metal, and only localized heating is generated.

Resistance welding is ideally suited to high-production methods.

____ is the actual time the current flows.

_____________________ welding is the only method that rivals the heat output of a laser.

Any known metal can be melted, even vaporized, by the plasma jet process, making it useful for many welding operations.

A(n) ____ welding process uses a pistol-shaped welding gun, which holds the stud or fastener to be welded.

____ is the time between the first application of electrode force and the first application of welding current.

_____________________ welding is the most common of the various resistance welding processes.