| 摘要 |
<p>A bimetal sleeve bearing (10) has an axial seam (17) that is laser-welded so that both the soft inner layer (14) and hard outer layer (12) of the sleeve are continuous and homogeneous without internal or surface cracks. The seam edges (16) are cut and abutted so as to form an axial groove (29) in the inner surface of the outer layer. During the laser welding operation, fused material from the inner layer flows into the groove (29) to form a crack-free lining for the bearing (10).</p> |
