| 摘要 |
FIELD: welding. ^ SUBSTANCE: method comprises oscillating electron beam following semi-elliptical trajectory. The heating spot is focused down to a diameter of no more than 1.2 mm, and oscillations are performed with a frequency of no more than 30 oscillations per second. The length of the transverse axis of the semi-ellipse should be no less than the width of the bottom part of the U-shaped beveling. ^ EFFECT: improved quality of welding. ^ 1 cl, 1 dwg |
