[4]

Removing rivets and drive Screws from nameplates

[3]
[10] Like what you see?
Click here to donate to this forum and upgrade your account!
N

Nelson

Guest - Please Register!
Guest - Please Register!
#1
If you want to paint the machine or restore the nameplates on a piece of used machinery, you often need to remove the nameplates intact as possible.
How would you do that? Here are some popular methods- please add your feedback.

Best,


Nelson

-------------------------------------------

1. If the plate is attached to a sheet metal part or other application with a through-drilled hole, just punch out the drive screw from the back. Hardinge lathe cabinet doors are an example of this application.

2. If the drive screw is in a blind hole, the head needs to be pulled out at least a few thousandths. Then you can grip it with pliers and pull and twist. There are three ways to get the drive screw started out a little bit.

a. Use a diagonal flush-cutting plier to wedge the drive screw out of the hole. These cutters are designed for plastic ties and copper wire, so the delicate cutting edge will get notched when it is used on a hardened steel drive screw. But it will usually get the job done. You might need to use method b or c before you can get the dikes to catch under the screw head. You can convert an old pair of dikes to flush-cutting by grinding the jaws down flat on the working side.

b. Use a cold chisel with a custom-ground edge (single bevel, like a wood-working chisel. This acts like one half of the flush-cutting dikes, and you have to be careful not to go too far and cut off the screw head.</font>

c. Use a sharp knife with disposable blades, like an Exacto or a utility knife. Force the blade under one side of the screw head until the edge hits the screw body.

Brass plates usually are pretty easy to get off without damage. Aluminum is more likely to get a little damage (scratch and dent) where the tool pressure is applied. Plastic plates (1940's Hardinge) are very fragile at the corners next to the screw hole.

After repainting the machine, tap the blind holes and attach the plates with machine screws.

Another method:

Use a dremel tool with a cutoff blade that cuts a slot for a screwdriver. They either back out easily with the screwdriver or the head breaks off cleanly, and if that happens the plate just slides off and there is enough of the shank left to grab with a pair of pliers to remove the rest.

-------------------------------------------
 
N

Nelson

Guest - Please Register!
Guest - Please Register!
#2

SubtleHustle

Swarf
Registered
Joined
Aug 20, 2018
Messages
14
Likes
10
#3
Ok, so I've been looking for a way to do this on my southbend 9c, for about a week. I have read a lot of ideas on how to remove the two pins holding my nameplate to the bed. There is a through hole going through the bed, but there is not near enough room to use a punch of any sort.
After reading all of the ways to do it, I did not like the ideas I saw, some because they damaged the original rivets, and some because i would have to go buy tools in order to do the procedure.
I finally had an idea of my own, and decided to give it a shot. It worked brilliantly, and without even a scratch on the nameplate or pins themselves, and as an added bonus, almost everyone has the tools to do the same. Here are the photos of the finished product...
20180905_192104.jpg 20180905_192133.jpg

Ok, so now how I did it... it was quite simple really, all you will need is a socket, from a socket wrench, a small enough finishing nail to fit into the hole from rear, and a small C clamp.

First, cut the finishing nail with a pair of wire cutters to about a half inch. And insert into hole behind nameplate. Hold the socket on the opposite side (over the rivet), on front of nameplate. Then put one end of the C-clamp over the socket, and the other end on the nail. Now, you simply tighten the C-clamp slowly, until the rivet pops out, into the socket. If the nail bends, it is still a tad too long. Snip another one shorter and try again. It took me about 3 bent nails, to find the right length. But they finally came out like butter!
So anywho, hadn't seen that method posted anywhere, and honestly I cant think of an easier way to remove those rivets from that location, so I thought I'd share with my friends and favorite machinist forum. Hope that helps somebody.
 

SubtleHustle

Swarf
Registered
Joined
Aug 20, 2018
Messages
14
Likes
10
#4
As a second thought, I figured I would include pics of the material used, so there is no confusion... 15361996339098541493806392248486.jpg 15361993859526605331216546680895.jpg 1536199695349241065536046288007.jpg
 
[6]
[5] [7]
Top