Soldering is a process which joins two or more metal items by melting and flowing a filler metal, the solder, into the joint. The filler metal having a lower melting point than the adjoining metal.
Soldering is not the same as welding. Welding involves melting of the work pieces.
Solder is a fusible metal alloy that is .
The fusible metal alloy has a lower melting point temperature than the work pieces.
A soldering iron is the tool used to heat and melt the solder onto the work pieces.
Video Tutorial com Adafruit.com (Collin’s Lab)
Common Soldering Issues
Cold solder joint:
- Solder has not fully fused to the surface causing unreliable electrical connections.
- Common causes:
Oxidation can be seen as dark spots:
Temperature settings for solder
Lead-based solder: 650 degrees F
Lead-free solder: 750 degrees F
Lead-based solder is easier to use, but lead-free solder is more commonly found.
Flat Screw Driver tips: Best for through-hole parts
Fine point tips: Surface mount components
Thick hoof tip with a wide contact area: Large joints