How to Explain the Cause of the Welding Defects on the Negative Plate 1. Common welding defects can be classified into four categories: 1) Weld size does not meet the requirements: such as ultra-high, ultra-wide, too narrow, too large difference between height and height, weld transition to the base metal is not smooth. 2) Welding surface defects: such as undercut, Weld, concave, overflowing, no penetration, surface porosity, surface cracks, etc. . 3) Weld internal defects: such as porosity, slag inclusion, cracks, non-fusion, tungsten inclusion, double-sided welding, such as the lack of penetration。 4) The properties of welded joint do not meet the requirements: the mechanical properties and corrosion resistance of welded joint are reduced because of over-heating and over-burning. 2. The damage of welding defects to welded components mainly includes the following a spects: 1) Cause stress concentration The distribution of stress in welded joint is very complex. Where there […]
Non-penetration
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