Self Clinching Pem Nut Into Copper

[valmeidan]

Ok so most of the time you would put a self clinching nut standoff into sheet metal and usually you are given a min sheet metal thickness to use. In my Case I am putting it into a block of copper. Most sheet metal min thickness for these is around 1.4mm, however I do not see a max thickness. My question is what could I use to put into a piece of metal 2-4mm thick ? Could i still use these fasteners in a thicker piece of metal like this or what are the alternatives. CDA110 copper. I need an M2 thread, max OD of the standoff 3mm or less. Trying to find an off the shelf part. Tried PEMNET but cant find any spec on this for thick metal

 

[btrueblood]

I'd bet you a beer that it would work (I've made similar designs work in mild steel). To prove it to yourself and/or your boss, order some parts from McMaster.com and see if it sets ok into a block of CDA110. Assuming you have access to an arbor press...

 

[Timelord]

Drink up btrueblood, I have done this more than once in the past and it works just great.

 

[berkshire]

ON Pem- serts, or Pem- studs, the limitation is at the thinner end of the scale, to make sure you have enough metal to deform and clinch the part. As long as the top edge will deform enough to lock the part ,it does not matter how thick it is.
Watch the short video.
B.E.

You are judged not by what you know, but by what you can do.

 

[mcgyvr]

Just another response for.. The minimum thickness is all that matters.. as long as you meet the min it will be fine.

 

[tbuelna]

You might want to do a few test samples to determine if the locking serrations are fully broached into your copper part's surface. If not, you might try adjusting the dimensions of the hole they are being installed into.