making serrated edges

[lamarch]

Hey guys;
I have searched everywhere but cannot find a single source on how to grind a serrated edge. If anyone here can point me in the right direction or tell me the tool I need to buy, that would be great! or how companys make them in a factory? Any post on this subject would be great
Thank you
Jeremy

 

[M Wadel]

the serrations made on factory knives are made by machines, thats pretty much all i know. you probably could make your own, just get a couple of files 3 or 4 different kinds or so and youll be able to experiment, i wouldnt be surprised if it takes a looong time, maybe its not worth the effort

 

[lamarch]

I was thinking it might be done with some sort of shaped grinding stone and a jig....Im not sure those machines they use they must have tool, wheel, insert. I would be happy to buy that part and custom fist it so I could use it. Anyone with knowledge on how the bigger companys do it, please post.

 

[Stag & Steel]

I use a foredom with 1/8" carbide rotary file to rough them in and then after knife is nearly done I use a 1/8" diamond to finish then triangle crock sticks for final sharpen. I have done a lot of them, but they don't seem to be very popular around here. Here is an example.
Jim

 

[mlovett]

Kit Carson made up some grinding wheels to do his, You might give him a ring. I think you can see them on his site. Mike

 

[steierknives]

One way to do it is dress the shape you want onto a grinding wheel on a surface grinder. This is done with a tool called a radius dresser. From there you mount your blade at the angle you want to grind these shapes in the blade. Its a pretty complicated setup. As with anything in machining there is always more than one way to do something.

 

[lamarch]

do you have kit carson site web adress or pictures of jigs and setups you guys have been using.

 

[Stag & Steel]

Another suggestion made to me once (I have not done it) that makes sense would be to take a bunch of cutoff discs and stack them on a arbor, then dress them to the serrated shape you wanted. You could then just hold it up to this setup, with a steady hand and cut to the depth you wanted. I think it would work.
Jim