Question:
In brazing process, the liquid metal fills the gap by which one of the following means?
In brazing process, the liquid metal fills the gap by which one of the following means?
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Brazing = Capillary Action. It works like a sponge soaking up water—the narrow gap "pulls" the liquid metal inside.
Updated On: Jul 4, 2026
- Capillary infiltration
- Gravity infiltration
- Pressure infiltration
- Vacuum infiltration
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The Correct Option is A
Solution and Explanation
Step 1: Concept Brazing is a joining process where a filler metal with a lower melting point than the base metal is melted and distributed between close-fitting parts.
Step 2: Meaning Unlike welding, the base metal does not melt, and the filler must be able to flow into very tight joints.
Step 3: Analysis The phenomenon where a liquid flows into narrow spaces without the assistance of external forces is called capillary action.
Step 4: Conclusion In brazing, the molten filler metal is drawn into the joint gap specifically through capillary infiltration. Final Answer: (A)
Step 2: Meaning Unlike welding, the base metal does not melt, and the filler must be able to flow into very tight joints.
Step 3: Analysis The phenomenon where a liquid flows into narrow spaces without the assistance of external forces is called capillary action.
Step 4: Conclusion In brazing, the molten filler metal is drawn into the joint gap specifically through capillary infiltration. Final Answer: (A)
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