Www.NCTfrictionwelding.com Friction Welding of Solid Part to Tube.

Pressure depends on a welded area. For smaller parts we use 6 to 20 ton machines. Bigger stuff - up to 150 ton. So if someone willing to junk his CNC lathe, good luck. It could be costly test!!! :(

How much pressure is needed? I see people trying to friction weld tools with cnc lathe! lol! Can this be done in cnc lathe without causing damage

nice!!

What effect does surface finish have on this form of production? I am sure that rougher finishes would lead to a higher coefficient of friction at the bonding surface. Also, the machine removes the excess weld metal at the end of the process, is this preffered only for aesthetics, or for part fitment? How much weld reinforcment remains at the edge?

How homogeneous are the welds in this process? Would the center of a solid shaft have a less effective weld due to reduced friction?

So that's how it's done.

The disk (solid part) is rotating in the chuck and the tube is stationary in the clamp. This way you can get friction between two parts. Second stage is higher pressure witch creates more friction/temperature! After that is final stage - third pressure when two parts penetrate each other. That is all! You have joined these two part together!

does the pipe start spinning with the disk even though its in that vice?