Using a propane torch and some aluminum brazing rods is a quick way to bonding aluminum without using a welder. It makes for a very strong bond and with a little practice can be done quickly with great looking results.
KIM ST. JEAN SPIDER SET PENDANT || A class example of how to set that odd shaped stone, or fossil. Utilize cold connections, prong brazing, and wire wrapping to make this pendant with a unique stone setting. Additional skills include sawing negative space, tube making, multi-layered riveting, large wire collar forming, texture, and patina. || http://artretreatattheprairiefall2.blogspot.com/p/class-details.html