brazing
A metal-joining process using a filler metal with a melting point above 450°C, but lower than the workpieces. Common in manufacturing and plumbing.
Brazing is used for joining copper pipes.
Please explain the difference between brazing and welding.
Standard modern spelling using hiragana for ろう and kanji for 付け.
Katakana variant sometimes seen in technical contexts.
Kanji 鑞 is a rare character for solder; this spelling is uncommon.
Compound of ろう (鑞, 'solder') and 付け (つけ, 'attaching'). The reading ろう is from the on'yomi of 鑞.