Abstract: A method of manufacturing a guide tube for a nuclear fuel assembly, in which a tubular blank of constant thickness is prepared, the thickness of the blank is reduced over a fraction of its length in the range 70% to 90% while maintaining a constant inner diameter, and then that section of the blank which has retained its original thickness is forced inwardly by an amount such that a tube is formed which has a constant outside diameter and a variable thickness.
Type:
Grant
Filed:
December 29, 1994
Date of Patent:
February 25, 1997
Assignees:
Framatome, Compagnie Generale des Matieres Nuclaires