When are positive and negative tolerances applied to container panels?
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This post was last edited by Chen Bo on 2015-7-11 20:21,,,,
I agree with the opinion above; it mainly depends on which standard you choose. However, the steel mills generally provide sheets with a negative deviation.
During design, the cylinder sheet materials are considered with a negative tolerance. The head is designed based on the minimum forming thickness; at this point, it is necessary to consider whether a plate with a negative deviation can be pressed to achieve the minimum forming thickness specified in the diagram.
Payment is based on the actual weight, so there is a possibility of purchasing at a higher price； Calculated based on theoretical weight, there is definitely a negative deviation ； It can be specified separately, with a positive deviation required, that is, from the steel mill rather than the trader.