sharpening anvils?

[imagineero]

Anybody know what sort of steel they're made out of? Some kind of tool steel, or bisplate 80 or something? I was thinking of attempting to regrind the one out of a 250XP to get it back to square. I've got a water cooled grinder, but it's only 400grit, and only 90rpm so that's going to take a *long* time. Otherwise if heating it won't affect the temper I could just use a normal grinder. Has it been attempted, and was it successful?

Shaun

 

[NRTS]

any sharpening guy can do it, for my Bandit 200+ its $30 for all 4 edges(2 sides)

 

[Tree services.]

Looking at getting mine done but its a week turn around time, pain in the a##

 

[imagineero]

I did mine today and it came out ok. I'll put some pics up a bit later tonight.

Shaun

 

[imagineero]

Here's the before. This isn't the actual side I ground, but it's similar to what I ground. Had severe chips, dents, and a rolled edge.

I started with the water cooled grinder which was way too slow. So I put it in a vice, marked off a line with a rule and a scribe and set to work with a 5" grinder with a 60 grit flap wheel on it. Ended up taking off about 1/8" to get 95% of the nicks out. After every few passes I'd touch the edge and check for heat. It never got hot enough that I couldn't touch it. I finished up draw filing with a mill file. The edge is nice and square, and sharp, and has only 2 very small nicks in it now as shown. I checked for straightness with a straight edge and it's spot on.

It took less time than what I would have thought. About an hour and a half from unbolted to bolted back up with gap set, including the sharpening. It's obviously not as good as the finish you're going to get with a surface grinder, but it's close enough.