| 摘要 |
<P>PROBLEM TO BE SOLVED: To design a workpiece and provide its manufacturing process wherein the workpiece is specifically designed to comprise a plurality of workpiece parts connectable together by laser beams along a joining zone inside a three-dimensional space. <P>SOLUTION: The workpiece is composed of at least two parts (7, 8), made probably of a thermoplastic material, and welded together by laser beams (11) along a joining zone (10). The two parts (7, 8) have respective transmission and absorption coefficients for the spectrum of laser beams (11), which are at least partially different from those of the other. A first part (8) is made to be at least partially transmitting for the laser beams (11) in the region from a first coupling-in zone (12), in which the laser beams (11) impinge on the first part (8), up to the joining zone (10), whereby part of the laser beams (11) can penetrate through the first part (8) and penetrate into the second part (7) at a second coupling-in zone (13). The second part (7) is made to be at least partially absorbent for the laser beams (11) in the region of the joining zone (10) at the second coupling-in zone (13). <P>COPYRIGHT: (C)2007,JPO&INPIT |
