Soldering is the process of joining two or more metals together by melting and flowing a filler metal having a lower melting point (normally Tin) into the joint. Soldering can be used to solder components to PCB or component leads to cables. When manual soldering reed contacts, care should be taken that the solder tip dwell is less than 2 seconds.
Soldering (AmE: //, BrE: //), is a process in which two or more items (usually metal) are joined together by melting and putting a filler metal (solder) into the joint, the filler metal having a lower melting point than the adjoining metal. Soldering differs from welding in that soldering does not involve melting the work pieces. In brazing, the filler metal melts at a higher temperature, but the work piece metal does not melt. In the past, nearly all solders contained lead, but environmental and health concerns have increasingly dictated use of lead-free alloys for electronics and plumbing purposes.