The meaning of the word Las or Welding (Welding) is the connection of metal or iron by burning the two objects until melted. Then the melt of metal or iron can be connected with when the molten freezes again. Based on its usefulness there are two types of welding machines are often used for metal grafting work and how it works are: First, Electrical Welding Machine How to work electric welding machine is by connecting the metal by using electrodes or electric arc melting on the two metals to be connected, so molten electrode will flow fill the crevices of the two connected metal. Second, the Carbide Welding Machine The workings of the carbide welding machine are by connecting two metals into one by using carbide gas or acetylene gas as fuel and oxygen to ignite a large fire up to the average heat generated by 3500 degrees Celsius used to melt both filler metal and parent metal so that both metals can be connected.
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