1.1.8 Thermal Joint: Soldering

1.1.8 Thermal Joint: Soldering

Soldering joins metal parts with a molten filler metal rather than melting the base material of the part. Solder is typically a tin or lead alloy that melts at temperatures below 350°C (662°F), causing less thermal stress than welding. Melted solder is drawn by capillary action between metal surfaces. It is electrically conductive, suitable for small parts and may be reworked at relatively low temperatures, which makes it a popular choice for electronics.

Figure 14 Soldering and joining metal contacts in electronics
Figure 14 Soldering and joining metal contacts in electronics

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