The electrodes are one of the most important factors in the resistance welding process but often the most abused. It is important to consider the electrode material, shape, size, tip profile and cooling.
The electrodes used in spot welding have a tip of Copper.
108) The electrodes used in spot welding have a tip of
Answer is:
copper
Explanation:
Related Workshop Technology MCQ with Answers
Answer is:
continuous spot welding process
Explanation:
Seam welding is a Continuous spot welding process.
seam welding is a variant of the basic resistance spot welding process.
In seam welding a series of overlapping nuggets is produced, usually by replacing the conventional spot welding electrodes by wheels that turn as the parts to be welded are fed between them.
Answer is:
multi-spot welding process
Explanation:
Projection welding is a modification of spot welding.
In this process, the weld is localized by means of raised sections, or projections, on one or both of the workpieces to be joined.
Answer is:
upset but welding
Explanation:
Upset butt welding is a welding technique that produces coalescence simultaneously over the entire area of abutting surfaces or progressively along a joint, by the heat obtained from resistance to electric current through the area where those surfaces are in contact.
Answer is:
flash butt welding
Explanation:
The welding process used in joining mild steel shanks to high speed drills is Flash butt welding.