After a recent job in St. Thomas I came into conclusion that I should start writing more about weld repair. So today I will say a few initial words regarding root causes for a broken weld and consequently the necessary weld repair. In my experience here are the root causes for broken welds:
1. Cold weld
2. Wrong welding technique for joint material used, for thickness of based materials, for specified vibration, for existing heat expansion or heat contraction
3. Lack of welding skills
4. Inadequate weld joint preparation
5. Inadequate cleanliness of based materials
6. Changes of vibration due to mechanical failure
7. Wrong weld design
8. Wrong rod composition for based material used
9. Size of weld too small
10. Lack of preheating
In following blogs I will try to evaluate in a few words each root cause of broken welds and weld repair. I would like to welcome other welders' point of view on this topic.
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