| 摘要 |
The invention relates to a method for bonding pieces of iron group sintered metals, and more particularly to a method for producing a sintered part having a complicated configuration by bonding more than 2 iron group sintered metal pieces to each other at the flat faces thereof according to this method, through holes are provided in predetermined locations of each of the metal pieces except the one constituting the lowermost layer, and if necessary, a concave groove having a depth of 0.03-1 mm is provided on the metal face to be bonded in each layer. The metal pieces are then superposed with said through holes coinciding with each other, with a brazing alloy being inserted into each of the through holes; heating the whole assembly so as to help said brazing alloy infiltrate into each of the interfaces, thereby bonding more than 2 pieces of iron group sintered metals to each other at a low cost. |
