Hello, you can consider the bonding area of aluminum alloy, whether it needs to be disassembled after bonding, and what tests need to be done after bonding (strength test, salt spray test, high and low temperature test, environmental protection test, aging test, drop test). Generally speaking, ergo5600 metal dry glue can fully meet your requirements for small area bonding. If it is a large area, ergo tasteless acrylate structural adhesive can be used to bond metal instead of welding process, which is simple to operate and environmentally friendly.