J
jager
SPC on multiple cavities, new topic
We have a symmetrical part which has 4 notches. After the part is stamped and tumbled to remove burrs, it is impossible to tell which notch is which. The customer wants SPC done on each notch. The tolerance is .070 ± .0005 inches wide. Since we cannot tell the notches apart, is there an acceptable method where we can just combine all notches into one big study? I have be measuring them as left, right, top and bottom, but all the readings are mixed since I don't really know which is left, right, etc. Thanks.
We have a symmetrical part which has 4 notches. After the part is stamped and tumbled to remove burrs, it is impossible to tell which notch is which. The customer wants SPC done on each notch. The tolerance is .070 ± .0005 inches wide. Since we cannot tell the notches apart, is there an acceptable method where we can just combine all notches into one big study? I have be measuring them as left, right, top and bottom, but all the readings are mixed since I don't really know which is left, right, etc. Thanks.