For companies that must meet contract terms, such delays can even result in fines for missed deadlines.įortunately, weld cracking doesn’t have to be a complete enigma-or a total drain on a company’s productivity or profit. In the case of products that need to be post-weld heat treated (PWHT), hours or even days must pass between the completion of the rework and a new evaluation, adding to a company’s overall downtime and lost productivity. Once reworked, these parts require a second round of testing that inevitably increases the company’s cost for this portion of the operation. In critical applications, companies can also incur significant costs for inspecting welds that may ultimately be rejected if a crack is present. In a best-case scenario, a welding operator must remove the weld crack by carbon arc gouging (or other means) and repair the weld, while in other instances the welded part must be completely rejected and scrapped. Not only does this defect adversely affect the integrity of the finished weldment, but it also requires significant time and money to rectify. Whether the result of poor parts fit-up, rapid cooling or a variety of possible contaminants-from the atmosphere, base material or filler metal-weld cracking carries with it significant consequences for any welding operation. Understanding Weld Cracking, Its Causes, Consequences…and Remedies
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February 2023
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