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It depends on the carbide inserts you are running. Are you using an uncoated grade that are polished for aluminum. If not then you will not get a good finish. Also lead angle can be important. ...

we are drilling 1.375" hole x 5.3" deep in 1018 steel. we are using coolant thru the tool but the drill body has a tendency to pick up chips and weld them when the drill is at a 5" depth. It is a...

Regardless of what coolant you use, your sump life will improve with a skimmer.

You couldn't pay more. Try Kelch, more competitively priced, made in the same town in Germany. Good stuff.

Since you live in Minneapolis, your water is hard. Therefore stay away from synthetic coolants. Especially since you are machining aluminum. If you are not doing much tapping and you use some...

Although you may think that an automatic tool changer is a needless luxury, you start running more than a few of the same parts and you will wish you had it. The other thing to consider is resale...

Coolant types are very dependent on the water in your area. Synthetic coolants have the longest sump life. Semi-Synthetic coolants also have pretty good sump life. Water Soluable coolants will...

There are two factors to look at: HorsePower curve and spindle taper. If the taper is a Cat 40, then you are straining the limits of the spindle. Also you should peg your rpms to the high end of...

Try Minicut International for aluminum milling. They have a wide variety of hi rake endmills (HSS and Cobalt) for aluminum. Due to the potential of manual feed, it is not advisable to use carbide.

Haas has become the modern day Bridgeport. It's a decent machine with lots of parts availability.

Thread whirling is one option. If you have helical interpolation, you can thread whirl or you can threadmill. Carmex has threadmills that small that were initially developed for the dental trade. ...

I also would use carbide endmills for cutting aluminum. First of all, how much HP does your machine have, what is the taper of the spindle? How far is the tool hanging out? Are you slot milling or...

These drills can be used both on a machining center as well as a lathe. You may need to turn down the shank in order to mount it into CAT 40 EM holder. I would also look at Korloy Indexable drill. ...

What are the diameters and lengths of the drills you are using?

Skeeterd is right. Oil is not a good coolant but an excellent lubricant. I would only use oil if I were tapping or honing and just for it's lubricating properties. Tell your co-workers that not...

I'm from the Twin Cities and I would be interested.

First, I would get a good CAD/CAM program and then I would mill using trichoidal milling. This milling path would allow you to generate pockets in all material extremely quickly. It would allow you...

Good question! The C grades were big back in the 60s, 70s, 80s but started being phased out as the coatings for the insert started to blur the distinctions. The International Standards Organization...

You are correct as a H2O jet is espensive to run but if you have production requirements then it is the fastest and most cost effective way to cut glass.

I believe that I would try a harder grade. I would try a P-25 grade of carbide. I think that .006" per tooth is a good start as far as chipload. I would also make sure that I was climb milling with...

Depending on the thickness, I would consider H2O jet cutting it.

I would use a 3 Flute x 50 Degree helix SC endmill TIALN coated for milling the titanium. I would run it at 80- 120SFM and the chip load will vary with the DOC. (radial). Run an air blast with this...

Is this hole drilled or cored? What is the starting size?

It appears that you are running at 325SFM at .010" PR. There are two issues:
1. the material is flame cut which means that it is work hardened and has scale. 2. You say that there is interruption...

It depends on the cutter and the depth of cut- ie. a 45 degree face mill with 20 degree axial rake and -4 degree radial rake will produce pig tails for chips. They are just as effective but this...

Thanks for the info. You are right it is all about service. Ya see I am a distributor and in the 4 years that we have handled the line, we have swept the marketplace in Minnesota. The only time...

The rule of thumb in carbide tooling( insert) is a minimum chip thickness of .004" (average). In milling this can be calculated using radial engagement of the cutter and the feedrate of the machine...

I am with Silverfox on this one! Trichoidal is probably the best and fastest technique for removing material in a pocket. It maintains constant chip load so it will give you better tool life. It...

I need to know what type of titanium you are machining. Also what equipment you have available. The configuration of the part. The thickness of the part. How many holes etc. B4 I can give you...

First of all, if you are going to be grinding carbide, you need a diamond wheel. I might recommend a plated diamond wheel. CBN is used for >50Rc steels not carbide.