- Joined
- Oct 14, 2013
- Messages
- 1,043
Explosion bonding is the go-to way to join Al to Cu, but it's not home shop friendly ;-)
Welding Al to Cu is really hard to do, and you get yellowish zones that are Copper aluminide and/or Aluminum bronze. Super hard and brittle for the first one... This is a necklace I made for my wife decades ago. I back-end milled grooves in the copper and back filled with Aluminum. I had to grind it flush; milling just didn't work.
Sent from my SM-G892A using Tapatalk
Welding Al to Cu is really hard to do, and you get yellowish zones that are Copper aluminide and/or Aluminum bronze. Super hard and brittle for the first one... This is a necklace I made for my wife decades ago. I back-end milled grooves in the copper and back filled with Aluminum. I had to grind it flush; milling just didn't work.
![1785872fc79f6bff890b06930aefff6b.jpg](/proxy.php?image=https%3A%2F%2Fuploads.tapatalk-cdn.com%2F20210401%2F1785872fc79f6bff890b06930aefff6b.jpg&hash=a7db8eb815e82dcb4ec1661fe62a7342)
![095933a5d5eb19f250d832b016972b8a.jpg](/proxy.php?image=https%3A%2F%2Fuploads.tapatalk-cdn.com%2F20210401%2F095933a5d5eb19f250d832b016972b8a.jpg&hash=ca67d54b38beef7e27d5e7ce499fb8a6)
Sent from my SM-G892A using Tapatalk