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How to solder
Learn what soldering is.
Put into basic terms, soldering is the process of melting a metal onto other metal components in order to bind them.
Soldering differs from welding.
In welding, the component pieces are melted together; in soldering, a softer metal with a lower melting point is used to connect them. Because soldering doesn't melt components, it's useful for more delicate applications, such as electronics work, or plumbing.