Spot Welding And Selection Of Welding Electrodes

By Author: Penelope Morris
Total Articles: 1
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Resistance welding becomes pronounced with the help of spot welding. Welding is a process that deals with binding of two strips of metal together with the help of heat or high pressure. Spot welding is a RW process which makes use of electrodes that are capable of transmitting severe current. Experts having studied such welding processes have found out that the weld area is the place from where the electrodes actually transmit the current and force required for the process to take place. Today spot welding has become popular for industrial use. However the welder should have proper knowhow about the process. Selecting appropriate electrode material is important. This also ensures that the material has adequate current carrying capacity. Spot welding electrode selection highly depends upon factors like electrode sticking and pick-up. The sticking and pick-up factors are associated with overheating of the metal piece. In case of projection welding, the electrodes have a larger circumference in contact than the weld area itself. Spot welding requires high electrode carrying capacity; this can be achieved with efficient water ...
... cooling.


Spot welding invariably requires proper selection of electrodes as the later determines the current carrying capacity. Overheating of the electrode strip would depend upon the selection of the material. However, proper strip choosing would only help an individual to get the desired results; also the severe overheating conditions could be readily avoided. Today there are several alloys available and each possesses unique characteristics offering benefits that vary from alloy to alloy. The applications of such alloys also differ with the varying characteristics. Mostly the alloy materials differ with hardness, electrical conductivity, durability, wear and tear, and softening characteristics. The softening characteristics also depend upon the temperature required for melting of the metal.Welding electrodes and wires form an integral part of the metallurgical, petro chemical, defence, oil and gas and the power generation industries. The welding consumables are highly in demand by the leading industries of the world.

Weldcraft requires equipments offering unique functionalities. From spot welding equipments to single phase arc welders, there are several of them available in the market. On studying allow characteristics experts have found that copper alloys offer greater resistance from wear and tear yet are too low on conductivity. Moreover spot welding electrodes require alloy that offer lowest conductivity and make good welds. The annealing characteristics of the strips are also to be considered while selecting the alloy. The softening temperature plays an important role for the weld. Efficacy of electrode functionalities is determined by the power of conductivity and current carrying capabilities. The resistance power of the electrodes against high force and current carrying capabilities definitely contributes in marinating of a uniform area of contact; whereby a relation between the current, force and time is maintained. This also states the fact that proper electrode selection is necessary for welding processes. Experts choose the right alloy so as to derive the desired effects.

Before the welding process takes it is essential that the alloys chosen for the former should be well certified.

Penelope Morris is a writer who has penned down articles on different subjects. To know more on Weldcraft visit http://www.hgcmanchester.com