Arc Welding is a broader classification of welding which includes among others stick welding.
Essentially, this process utilizes a welding power supply which may either be electricity or electrodes. Electricity may either be DC (direct current) or AC (Alternating Current). On the other hand, electrodes may be classified as either consumable or non-consumable.
Further, a shielding gas is also involved in the process, which may either be inert or semi-inert.
In simple terms, it is the process of creating an electric arc fuelled by the welding power supply between the electrode and base material. Therefore, a point of contact known as the welding point is created. This position must be maintained by the welder until the material is successfully welded.
With respect to using electricity as a welding power supply, two kinds of power may be utilized: current power and voltage power.
According to experts, welding entails direct correlation between two important aspects —- the length of arc to the voltage and the amount of heat input to the current. Compatibility in these aspects must be ensured for successful results.
Common examples of sub-types of welding that uses current power supplies are as follows: gas tungsten arc welding and shielded metal arc welding. These sub-types that are characterized as manual welding processes require a constant amount of current as the voltage fluctuates. This is what exactly a current power supply provides.
With respect to subtypes of arc welding that utilizes constant voltage power, notable examples are automated welding processes such as gas metal flux cored arc welding, and submerged arc welding. In these subtypes, constant voltage is required amidst fluctuations in current. It is also important to keep the arc length constant since any movement in each of the materials involved may cause an increase in the current, which in turn hampers the welding process.
Indeed, welding entails technical knowledge on the matter. Its concepts are far too complex for an ordinary customer to comprehend. It requires the explanations of expert welders who are not only well-versed on the subject but can effectively communicate in easily understandable terms the nuances of the process. Actual demonstration is also a quick way of understanding the subject matter. The parts involved in the process can also be identified easily by the customer thereby facilitating the latter's comprehension. In sum, unless the customer is interested in pursuing a degree in arc welding, consultation of an expert welder is highly recommended.