| 摘要 |
In a method of joining two workpieces ( 10, 16 ) without extraneous materials to produce a workpiece 25 which is joined over a joining area ( 24 ) which is formed by two fully adjoining surfaces ( 13, 13' ) of the two workpieces ( 10, 16 ), with the first workpiece ( 16 ) being of plastic and the second workpiece ( 10 ) being of a material different from plastic, a strong bond is achieved even when the coefficients of thermal expansion of the workpieces are different by activating at least the surface ( 13' ) of the first workpiece ( 16 ) by irradiation with high-energy radiation in a first step, bringing the surfaces ( 13, 13' ) of the workpieces ( 10, 16 ) into contact in a second step and pressing the two workpieces ( 10, 16 ) against one another at room temperature, in particular at a temperature of from 15° C. to 30° C., to join them at the surfaces ( 13, 13' ).
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