Welded layer thickness?
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Welded layer thickness? Welded layer thickness? The drawing specifies that the thickness of the surfacing layer after processing should be 6 mm; generally, what thickness needs to be applied initially to ensure that this thickness is achieved after processing?
It depends on the extent of the deformation; generally, 3 mm is sufficient. Those with large deformations (such as larger plate flanges) require more machining allowance.
When performing surfacing, a transition layer should be applied first, followed by the processing of the surface layer. As for how much to leave, it depends on your company’s proficiency in surfacing work, as well as the size and thickness of the area to be surfaced
It depends on the method used for surfacing, what material is used for surfacing, and what requirements there are for the processed surface. For those with large deformation amounts, a larger amount of machining allowance should be used; for cases with high levels of surfacing, a smaller machining allowance is sufficient. In the case of wear-resistant hardface surfacing, since the surfacing stresses are high and the processing is difficult, it is preferable to use as small a machining allowance as possible. Of course, it depends on the specific circumstances.