Craft · 6 pages · 12 min
How solder differs from welding
Solder joins with a melted filler while the parts stay solid, and welding melts the parts themselves.
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From the opening
Soldering joins metal by melting a filler that flows into the seam while the pieces being joined stay solid. Welding heats those pieces until their own edges melt and fuse, with or without a filler of similar metal. The opening covers filler flows, base stays solid, welding melts the parent metal, and brazing is the hot middle.
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Inside
- Filler flows, base stays solid
- Welding melts the parent metal
- Brazing is the hot middle
- Capillary film versus fused bead
- Where the idea stops applying
- A distinction worth keeping
Sources
- Capillary flow of molten solder
- Fusion welding of parent metal