Abstract
The manufacturing industry, steel is one of the main materials in making every tool. Steel itself has different thicknesses according to its use, ranging from 1 mm-20 mm. The thicker the steel used, the more difficult the fabrication process, especially cutting the steel, will be. In general, the tool used to cut thick steel is Gas Cutting with the type of gas used being Oxygen and LPG (Liquified Petroleum Gas), or you can also use Oxygen and Acytelene gas, this is more effective when compared to cutting steel or steel using cutting grinder. However, the operator who operates the cutting gas greatly influences the neatness of the cut results. Given these problems, this research aims to analyze the results of cutting steel or steel using semiautomatic Oxy-LPG cutting gas, and then the results of this research are compared with the results of cutting steel or steel using conventional Oxy-LPG cutting gas.
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