When undertaking a project that involves aluminum brazing or looking into similar services, there are several things to consider. Chief among them being choosing the best joint and being sure the space for your filler material is aligned correctly.
Properly Placed Filler
Beyond choosing a filler material, you also need to be sure the area to which it will be applied is properly aligned. This can be done by using special rods, wire rings, or washers. Strips or paste can also be used if the joint type allows. Brazing sheets- with filler on one or both sides- are also available as a more economic option.
Best Joint for the Job
In aluminum brazing services, a lap joint is considered the better option for joining your metals. While butt joints are made to equal the strength of the base joining metal, they require very specific conditions that can be difficult to meet in a weld, making a lap joint preferable. Clearance should also be considered, dependent on the chosen joint and length, to allow easy flow and uniform quality of your joints.
It takes a lot of close attention to details, but aluminum brazing can be an efficient way to join nonferrous metals for many uses. With the right joints and correct application of filler materials you’ll be ready to undertake your next weld.