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[Audio] Heating and welding" is the process of joining two or more materials, usually metals, together. When the materials are heated to their melting point and combined, the result is a strong bond. Today, we will be discussing the different types of heating and welding, the process used and safety precautions. My speech: Today, we will be talking about heating and welding, a process of joining two or more materials, most commonly metals, together. When the materials are heated to their melting point and combined, the result is a strong bond. We will be discussing different types of heating and welding, the process used and safety precautions. Let us begin..