| 摘要 |
A method of joining mechanically an inner tube (2) to an outer tube (1) by radial expansion of at least the inner tube with the aid of an internal overpressure. The method is particularly characterized by filling the inner tube (2) with an explosive gas of determined composition, temperature and pressure, and by igniting and exploding the gas. A core (14, Fig. 2, not shown) may be used to reduce the amount of gas required. <IMAGE> |
