krinkguy2 0 Posted June 25, 2010 Report Share Posted June 25, 2010 I was told that the Ultimak rail is aluminum. I want to weld an HK front sight to it. Is the Ultimak aluminum? If so can a steel front sight be welded to aluminum? What is required to do that? Is it a specialized type of welding or can any run of the mill welder do it? Are there other methods to join the 2 meetals that will be strong and look good? Someone mentioned polymethylmethacrylate composite. Quote Link to post Share on other sites
wired 27 Posted June 25, 2010 Report Share Posted June 25, 2010 I was told that the Ultimak rail is aluminum. I want to weld an HK front sight to it. Is the Ultimak aluminum? If so can a steel front sight be welded to aluminum? What is required to do that? Is it a specialized type of welding or can any run of the mill welder do it? Are there other methods to join the 2 meetals that will be strong and look good? Someone mentioned polymethylmethacrylate composite. You cannot weld aluminum to steel. You can rivet or screw or glue but steel and aluminum do not mix as a rule. Those Chaos sights are what you need, Quote Link to post Share on other sites
Paulyski 2,227 Posted June 25, 2010 Report Share Posted June 25, 2010 Use oxy-gas, or MAPP gas & braze it. It won't fusion weld. Quote Link to post Share on other sites
G O B 3,516 Posted June 25, 2010 Report Share Posted June 25, 2010 Use heli-coil inserts in the aluminum, and attach sight with steel screws. Quote Link to post Share on other sites
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