| 摘要 |
<p>The invention relates to a welding method. After the connection seam is closed and sealed, the welding gun continues to move forward a distance, at the same time, the energy of the gun beam is gradually decreased to zero. Moreover, after the connection seam is closed and sealed, the welding gun continually moves a distance in the direction of leaving the welding track. As a result, the invention provides a method that effectively eliminates the welding pit faults and advances the sealing performance of welding. Furthermore, the invention especially adapts to seal the opening of lithium battery for advancing the sealing performance by use of laser beam.</p> |
