| 摘要 |
<p>A method for securing first and second parts (20 and 12) together via a spheroid (10), wherein the first part (20) has a hole (22) in it slightly smaller than the spheroid (10) while the second part (12) and spheroid (10) each include ultrasonically fusible material. The method comprises placing the first part (20) against the second part (12), placing the spheroid (10) into the hole (22) in the first part (20) so that a portion of the spheroid (10) extends through the hole (22) and into contact with a portion of the second part (12), placing a concentrating horn (14) of an ultrasonic power source in contact with the spheroid (10), and ultrasonically vibrating the horn (14) to beat it against the spheroid (10) and thus impart ultrasonic energy to both the spheroid (10) and the second part (12), thereby heat-softening the spheroid (10) and second part (12) and causing the spheroid material to flow through the hole (22), fuse with the second part material, and overlap (11a) an adjacent portion of the first part (20), whereby the two parts (20 and 12), via the spheroid (10), are firmly secured (11) together.</p> |
