Combined process qualification
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May I ask, should bending tests be conducted on the test specimens for combinations where T<10mm? If it is to be done, what kind of bending test should be carried out?
So, may I ask, is it scoliosis, facial distortion, or back curvature?
Table 11 of NBT47014-2011
For sizes below 10mm, it is not recommended to conduct combined process evaluations; it is difficult to select appropriate bending specimens, as neither face bending nor back bending nor side bending is suitable. There was a dedicated thread previously discussing this issue, and some people suggested doubling the number of samples for face bending and back bending. The original poster can look that up
For combinations of less than 10, evaluate by performing face and back bending. ，。