Electric current melts metals to weld together
sheilding gas- protecs from impurites in the air to creat a tidy and stronger bond
Electris current makes a molten pool of metal thenthe welder feeds a wire of mild still into a hole so it makes a join in the metals.
When you pull the triger a shrouding gas comes out then the wire is feed out more and melts onto the metal to you are joining
when welldig make sure you are comfortable.
higher ampabe more power weld is created faster
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