5/18-11 Threadmilling in steel

[Greg Williams]

Tapping, What's that!

[heavychevy2155]

And yes, in MCX you can set spring pass's, roughing pass's, overcut amount, tapper angle, and just about anything you can think of. You dont have to create a custom tool, you can just use an endmill and set it to the correct diameter and away you go. super easy.

[jeff]

quote:

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Where do you guys prefer "single point" vs hobb type thread mills and vicea versa? Here they only buy "single points" becuase they think hobs are to expensive and you are limited on your pitch. [Roll Eyes]

 

Although we don't do high production threadmilling.

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We don't do a lot of threadmilling either, I just prefer multiple teeth over single point,looks better and cuts way faster.

[Jayson Kramer]

I like the Vardex tools and scientific cutting tools to but I use MC for the paths..

[Josh Kinney -Elite Engineering]

LakeShore Carbide FTW!!! Almost half the cost and the "Hard Mill" thread mills are almost indestructible. Carl @ LakeShore has been a big help to me on a lot of tough jobs. They also make nice end mills, chamfer mills and anything else you need. I've had him make up some pretty wild profile cutters that I used on Tungsten!

 

Josh-

[jeff]

Yeah that's where we buy our threadmills, can'tbeat the price, and the quality is superb.

[Rocketmachinist]

I went to Advent for the first time we had to do threadmilling. It was a 5.5" 4 stub acme thread. It worked great.

 

If you want a good threading calculator I found ME ThreadPal to be a decent product. It saved soo much time over calculating those one off thread sizes.

[jeff]

I always used the constant of .6495 (J.I.S.) for calculating thread depth/height.

 

[(1/P) * .6495] *2 then subtract from the Major.

[Storkman]

Chris, I like the Emuge threadmills as well. I used them on all of our tombstones and they last forever.

[K2csq7]

Just got done with some 1.25-7 blind holes 2.25 deep in Nitronic, MC's path was flawless, 2 roughing passes & 1 finish pass as a seperate toolpath (just copied the original toolpath and got rid of the multi-passes, forced toolchange) comped it out at the control till the gage went. Scientific Cutting Tools solid carbide threadmill .745 dia. TiCN coated 4 holes done and not a scratch on the tool.