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What spec covers the grain flow pattern for cold formed rivets.

Cory, thanks I didn't think about linking this to our past postings. I am still looking for any help on understanding if this condition would have any effect on the stud. We did have the splines tested for microhardness. We discovered that the splines on our stud are significantly softer than...

We are experiancing failures of the splines on a stake stud. The splines are loosing their integrity when the stud is pressed into the mating part (essentailly they are being "rubbed/smeared" away). Any help on this issue would be greatly appreciated.

Cory, thanks for the info. We are having the micro hardness checked at the splines as well as having some studs sectioned and grain structure looked at. I will pass on to the lab that is doing this your recomendations. I will also attempt to secure some flanges and ask for the lab to perform...

They wont seat at the force that has been used in the past in their automated assembly process (1100psi). My customer can take the parts off their assembly line and use a larger press with much more pressure and the parts will seat fully. We have pressed out some of the assemblies that have...

I am with a cold heading company, we have been experiancing an issue where our customer cannot stake an M10 stake stud into the their exhaust flange (won't fully seat). We have been providing this stud for a number of years and just since 11/05 have had this issue. We have investigated and...