What are the differences between aluminum coil welding and soldering?

Aluminum coil welding and soldering are two distinct methods used in metal joining. Welding involves the fusion of aluminum coils using heat to create a strong bond between the metals. This process can be done with various techniques such as MIG, TIG, or laser welding, and it results in a permanent joint. Soldering, on the other hand, is a process that uses a filler metal with a lower melting point than the base metal (aluminum in this case) to join the materials. The joint is not as strong as a welded joint, and the process does not involve melting the base metal. Soldering is often used for electrical connections or when a less permanent bond is required. In summary, welding creates a stronger, more permanent bond by melting the base metal, while soldering uses a filler metal to create a less permanent bond.