Welding process
Friction welding

Strictly from a geometric point of view, all revolution joints can be made by friction.

When cross-sections are not equal, it may be necessary to prepare the larger part to achieve symmetry and better thermal distribution for balanced creep. Figure 5 shows some of the basic principles commonly used.

When the metals are dissimilar, this results in an asymmetrical configuration of the beads (figure 6).

In practice, the most important conditions of use are :

• the possibility of applying sufficient clamping force to both parts and transmitting the friction...