PURPOSE: To obtain good brazed parts without inclusion of air, gases, etc. by deviating the relative positions of the surfaces to be brazed, and brazing the surfaces by supplying a brazing filler metal while increasing the superposed parts thereof.

CONSTITUTION: A female surface 1a to be brazed wherein the bore side of a base material 1 is cut in an axial direction, and a male surface 2a to be brazed wherein the outside diameter side of a base material 2 is cut are superposed to fix the material 1. Both materials are so installed that the material 2 under slow rotation in this state is moved in an arrow direction. While said material is held stopped, the surfaces 1a, 2a are heated and when a brazing temp. is attained, the material 2 is rotated slowly and during this time a brazing filler metal 3 is supplied to the superposed parts of the surfaces 1a, 2a. When a required amt. of the metal 3 is supplied, the material 2 is slowly rotated and moved in the direction of the material 1 and the metal 3 is replenished in a manner as to avoid shortage. The brazing is completed when the surfaces 1a, 2a are fully superposed.