Welding and world war one
During the times of world war one; the welding process saw a steep surge in their demand. This is because welder the various welding processes were used and required in the machinery that was a part of the war. Ships were made out of the welding process as well as guns and other such equipment were manufactured with the help of welding. Around this time, welding was powered with the help of DC current alone as AC current was not discovered as of yet. However, later on, with the advantages of the AC current over DC, several machines were manufactured to cater to the AC current need of the welding process. This was also because AC current was much easier to handle than he DC current as it could be stepped up or stepped down to suit the need of the project. Thus most machines today also come with a AC current power. This helps to reduce the power consumption of the unit.