Help choosing correct carbide cutter for Damascus

shapeaholic · Nov 8, 2019

I'm looking for some advise on carbide cutters for machining Damascus pattern welded steel blanks.
The blanks are made of alternating layers of 1084 steel and 15N20 stainless.
I have been doing some of these, for my son, the blacksmith and I am finding that it it is very hard on cutters. The blanks are "annealed" after forge welding, but it is still troublesome.
I currently use a 3 flute 1 1/4 cutter that has SD 322p cutters that are coated.
I have also tried a cutter with 3 TPG 323 cutters, both coated and not coated.

Anyone have a good idea?

Pete

rblalexander · Nov 8, 2019

What's happening to the cutter and inserts now, are they breaking completely or just chipping? What machine are you using and what are doc and feeds?

litlerob1 · Nov 8, 2019

Silly, Demascus steel cannot be Machinrd, bent, welded, broken, looked at, drilled, or melted----ever. Hasn't anyone looked into the facts.

Aside from the sarcasm, you need a smaller cutter. All that klackety klack isn't bothering you first? Smaller cutter for harder metals.

R

triumph406 · Nov 8, 2019

I've machined pattern welded steel or Damascus as you call it.

I roughed the shape using a 3/8 flatbottom, and finished the blade with a 3/8 ball.

The big problem is the amount it moves when you remove material from each side. The cutter your using is way to big.

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Help choosing correct carbide cutter for Damascus

shapeaholic

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rblalexander

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litlerob1

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triumph406

Diamond

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