simple past tense and past participle of weld

(metallurgy) The process of welding two pieces of metal together using the heat generated by an electric arc between two electrodes.

plural of welding machine

A phenomenon where in a vacuum, two clean oxide-less uncoated metal surfaces will fuse/weld/merge together when they come into contact with each other, without any other action required (without fusion heating).

present participle of cold weld

A welder (machine for welding).

A method of manual electric welding that uses a consumable flux-covered electrode that forms a slag to protect the weld from oxygen degradation.

present participle of stick weld

A type of welding, typically of very reactive metals, by means of a non-consumable tungsten electrode and an atmosphere of an inert gas such as argon, with a feed stick for the weld material.

A semi-automatic welding machine.