| 摘要 |
The invention relates to a method for at least locally increasing the stability and/or load carrying ability of work pieces ( 10 ), whereby first of all a first work piece ( 11 ) is produced by means of a conventional manufacturing method. The inventive method is characterized by the following steps: a) the first work piece ( 11 ) is then provided with a hole ( 13 ) in the area where stability and/or load carrying ability are to be increased; b) a second work piece ( 12 ) which consists of a stability-and/or load carrying ability-increasing material is introduced into the hole ( 13 ); c) in this state, the second work piece ( 12 ) is rubbed relative to the first work piece ( 11 ) according to the friction welding method until the welding temperature is reached which lies below the melting temperature of the two work pieces ( 11, 12 ), thereby obtaining a friction-welded connection between the first work piece ( 11 ) and the second work piece ( 12 ) and producing the work piece ( 10 ).
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