Face cutting 2 inch carbon steel bar stock

[chuck767]

I need to remove 1/4 inch of material from one face of 2 in.² bar stock 16 inches long, 1030 carbon steel

I have a 6 inch diameter 12 tooth carbide face mill Cutter On my Excel VMC with 15 hp spindle motor. It has flood cooling

I have a lot of these parts to machine.

Could somebody more familiar with cutting steel recommend a feed, speed and depth of cut for this job?

Thanks,
Chuck

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[Jim Dawson]

I think hanging onto a 16 inch long bar would be a problem if you are holding it vertical. A face mill would not be my first choice to do this.

I would lay it on it's side in a vice and use a 1 inch x 2 inch LOC roughing endmill to face it, maybe one pass, leave about 0.020 for finishing. If you need a good finish, then switch to a 1 inch finishing endmill and finish to size.

[burbingus]

I read an interesting topic on another forum about the feeds and speeds for 1018 steel which is very similar. They seemed to suggest running it dry with an air blast was the best bet. I think Jim's setup idea sounds like the way to go. There are some nice roughing bits that should make quick work of that material. I saw some end mills at Maritool that looked like they would be just the thing for this.

https://www.cnczone.com/v...d-feed-199263/

https://www.maritool.com/Cutting-Too...197/index.html

Good luck!

[chuck767]

Thanks Jim,
I had intended Horizontal in a vice.

I will check to see if I have a 1 inch roughing end Mill.

As a newbie machinist trying to learn, I would like to understand why my 6 inch carbide tipped face mill would not work on this job.

Again thanks for the suggestion of the 1 inch and Mill.

Chuck

[chuck767]

Thanks for the input on dry cutting, I was getting prepared to drowned it with coolant

[Jim Dawson]

As a newbie machinist trying to learn, I would like to understand why my 6 inch carbide tipped face mill would not work on this job.

Chuck

Well, part of that is just as the name implies, ''Face Mill'', not really designed for side cutting. Depending on the cutting geometry it may work, but is not really designed for what you propose.

A roughing end mill is really the best way to remove a lot of material in a hurry. You have enough HP, so follow the endmill manufacturer recommendations for feed, speed, and coolant. All major manufactures have charts for best feeds and speeds for their products.

[chuck767]

Well, part of that is just as the name implies, ''Face Mill'', not really designed for side cutting. Depending on the cutting geometry it may work, but is not really designed for what you propose.

A roughing end mill is really the best way to remove a lot of material in a hurry. You have enough HP, so follow the endmill manufacturer recommendations for feed, speed, and coolant. All major manufactures have charts for best feeds and speeds for their products.

Thanks Jim,
Light my high school shop teacher told us, “the proper tool for a proper job”

[Jim Dawson]

Thanks Jim,
Light my high school shop teacher told us, “the proper tool for a proper job”

My pleasure.

Your shop teacher was a wise man.

[generaldisarray]

6 inch 12 effective tooth facemill? 15hp? is this excell 50 taper

Jim- are you describing milling it to length?

I understand the question posed as making 2x2x16 into 2x1.75x16

2 Vises

would need a little more info on the facemill, which I feel is almost too large.It does have lead angle right? A 3.0 dia would be better. DOC would have to be felt out. start@.125? watch load meter and listen.
Dry
500 sfm@6=318rpm
.004iptx12=.048x318rpm=15.26ipm

[Jim Dawson]

6 inch 12 effective tooth facemill? 15hp? is this excell 50 taper

Jim- are you describing milling it to length?

Yes, milling to length, but maybe I misunderstood. To cut one face to 1.75 then I would do as you describe above. In that case the 6 inch face cutter would work fine.

[chuck767]

6 inch 12 effective tooth facemill? 15hp? is this excell 50 taper

Jim- are you describing milling it to length?

I understand the question posed as making 2x2x16 into 2x1.75x16

2 Vises

would need a little more info on the facemill, which I feel is almost too large.It does have lead angle right? A 3.0 dia would be better. DOC would have to be felt out. start@.125? watch load meter and listen.
Dry
500 sfm@6=318rpm
.004iptx12=.048x318rpm=15.26ipm

relative to "6 inch 12 effective tooth facemill? 15hp? is this excell 50 taper" yes, 6 inch 12 effective tooth facemill, 15hp, 40 taper


relative to, "I understand the question posed as making 2x2x16 into 2x1.75x16" This is correct.qad yes 2 vices

thanks for all the input..
Chuck