General Studies · Welding Technology
Which flame is recommended for hard-facing applications like stellite deposition, and what effect does it have?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Neutral flame, as it perfectly balances the acetylene and oxygen volumetric ratio
- 2Carburizing flame, as it introduces carbon into the surface layer, which reduces the melting point and avoids overheating the base metal✓
- 3Oxidizing flame, as it ensures a clean weld deposit without contamination
- 4Neutral flame, as it prevents oxidation of the underlying base metal
Correct answer
Carburizing flame, as it introduces carbon into the surface layer, which reduces the melting point and avoids overheating the base metal
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