Z-CARB ENDMILLS

[HEAVY METAL]

Anyone using these endmills. I've had pretty good luck with them. Their starting points for feed and speeds I have found not to work so well though. They seem to be a little high. Also had some problems pocketing with them but that has a lot to do with chip evactuation and re-cutting chips.

 

 

Heavy

[Tim Aydt Prototek Engineering]

Yo Heavy,

[Tim Aydt Prototek Engineering]

Yo Heavy,

I have used these endmills alot in the past and I luv em. They seem to perform better in a stubby holder, anything extended and as you say the feeds and speeds are not quite right. Heavy coolant flood and chip evac is crucial. Overall I think they perform very well.

 

Later

 

Tim

[HEAVY METAL]

I agree . I have most problems when there hanging out there for clearance reasons or whatever

[chris m]

We run them and they work really well for us in tougher applications [pocketing or slotting in heat-treated stainless, etc] but I agree the SFM is a little high on their chart, even after discounting for slotting or big DOC; high coolant flow is a must.

 

C

[maestro]

We use them here in one job with great success. 17-4 stainless heatreated to 32-37 RC.

[Code_Breaker]

Sounds like something I would like to try. Where do you get them?

 

 

Code_Breaker

[Rob B]

These are great EM's. I made a cut with a 1/4 with 1" FL that cut .625 deep about 1" long. The EM didn't break, and probably cut 30-40 more parts after that.

 

Has anyone used the X-Prowder or Prower EM's (don't think it is spelled right). They are for Hard milling. They are good EM's for hard milling. They will cut62-65 rockwell easily.

[Fig sign]

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Has anyone used the X-Prowder or Prower EM's (don't think it is spelled right).

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You mean X-Power from YG (Korea ) ?

I use them a lot !

Great mills especially extra long little diameter mills ! (especially on high HRC (more then 60 ).

 

I also use solid end mills from Iscar ,Hanita ,Micro and SCT .

[mayday]

Z carb = 3/4"

2850 RPM - 18 to 28 IPM. I take light cuts ramp at 1 deg with air blast. we have seen more wear on the tool using coolant. stub holder is a must. any vibration and your toast. stay away from aluminum. they BREAK use Skee carbs for that

 

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Where do you get them?

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SGS

[mike_f]

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stay away from aluminum

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Aluminum will chemicaly bond to the ALTiN coating on the z-carb. We use the recommended feed & speed on everything within the listed parameters with great results. I think their charts could be a little more specific though. we do back off for tougher mat'ls like H.S.S.s.

I helix into pockets at a 6deg. ramp angle with no problem but chip evac. is a must. I get better tool life in my prototraks that use drawbars than my cnc's with pull studs though.

try the v-carbs for finishing just stay out of tight corners, they kick arse.

[Tim Aydt Prototek Engineering]

Z Carbs are an SGS product line. So whoever in your area carries SGS Emills should have them. They can be a little pricey though. Especially the bigger sizes. Also, a good toolgrinder can recreate the geometry for resharpening. That will help with the cost of the cutter.

[mike_f]

I send mine back to SGS for re-grind, they strip them, re-sharpen and re-coat for about 50% of the cost of a new cutter. more important they are like new (smaller chip gullet of course). some of the re-grind services in our area are a little spotty on quality

I do stay away from the square corner tools if I can, I order the sharp corner end mills with a .01 radius which costs me about $10. extra on a 3/4 dia. but does wonders for tool life.

[Code_Breaker]

We use Fullerton EM for our electrode because they cut a trues straight wall holding .0002 tolerance.

 

We also use OSG for both soft and hard milling. OSG is coming out with a line to compete with Fullerton. If they do, its "one-stop" shopping for us.

 

As for z-carb, SGS is no longer in our area. Don't know why, they just stop doing buisness here.

 

 

Code_Breaker

[Cg]

Z-carbs are great but. Hanita varimills seem to outperform them for us in stainless. and if I recall they even cost less. get the stubbies and hold them in the shortest holder posible and floood them with coolant they hate recutting chips

 

Cg

[Roger Peterson]

Someone mentioned the X-power's, great tools and the price is just as good. They have a lot of standard endmills that may be special orders elsewhere, they have a very nice line of extended length tapered shank ball endmills. Their recommended feeds and speeds weren't quite as aggressive as a few of the others around but they performed well and their roughers outlasted most others twice their price. I beleive they had an aluminum "line" but even their standard endmills evacuated chips well. Good bang for the buck. Now if money is no object...

 

 

JM2C