🔍 Key Concepts

• How different metals (steel, aluminum, stainless, etc.) react to heat during welding • How the chosen welding process (e.g., stick, MIG, TIG) affects heat input and penetration • The relationship between heat intensity and achieving proper fusion without damaging the base metal

💭 Think About

• Think about whether heat intensity depends only on the final bond strength, or also on the materials and methods you use to create that bond. • Ask yourself: If you switch from welding mild steel to aluminum using the same process, do you need the same heat, more heat, or less? What does that tell you? • Consider whether different welding processes, even on the same metal, require different amperage/heat settings to get proper penetration.

✅ Before You Answer

• Identify whether material properties (like melting point and thermal conductivity) would change the required heat. • Decide if the welding process (e.g., the way heat is delivered) would require different heat levels for the same metal. • Check if "bond strength only" or "metal only" could realistically control all aspects of heat requirements in practical welding.