We know everyone needs an extra machinist in their shop. While we can't send you a machinist 'Get It Next Day', we can help by offering our expertise for support in your day-to-day operations. Need help with something technical, but don't have the time to do the leg work? Post your questions here and someone on our Metalworking Team will respond.
- Need help finding the right tooling for your job?
- Challenged on finding the best speed to run at while cutting steel or titanium?
- Could your overall process benefit from an improvement?
Ask us here. Our metalworking experts are ready to share their know-how.
good afternoon. i am cutting 410 series steel in a normal condition. i woulf like to use peel milling. can you tell me the sfm and fpt for an accupro .125 end millwith an altin coating. (msc number 00037689)
thanks for your help
steve
Hello Steve,
Thank you for your inquiry,
The rules of thumb are in peel milling is 25 to 30% speed increases and 2 to 3 times the feed rate no more than
20% engament. because of your diameter I would start @10% engagment.
For your 410 stainless I would start running at 490 sfm feed rate , because of such a small
diameter I would start at .002 to .003 ipt to start
good morning rob. i chatted with you the other day about peel milling with an accupro .125 end mill in 410 steel.you stated to run tool at 490 sfm rmp works out to 14000 my max rpm is 8000 . can you suggest new numbers for this end mill
thanks steve
Steve,
Although the 490 sfm is optimal if yor machine can only run at 8000 rpm I would run at 7200 rpm
and .0003 to .0005 ipt to start and optimize your feed rate untill you break one then back off
When drilling titanium is it better to use a 118 degree drill or a flatter bottom drill such as 135 or even 180?
Higher tensile strength materials generally do better with wider point angles. A parabolic, high vanadium steel drill with a TiAlN coating is a good basic choice for short runs and/or manual machines. For longer part runs and CNC machines, choose a solid carbide drill with some sort of coating for Titanium. (High end drill manufacturers have come up with a lot of incredible multi-layer coatings that offer huge benefits over single layer coatings.) If you can put coolant thru the tool, that is a huge benefit since titanium doesn't conduct heat. There are flat bottom drills that will work very well in titanium in CNC machines with coolant thru spindles. Kennametal and OSG both have the flat bottom drills available.
I need a gib for compound on Niles 36" lathe. I do not have manuals for part numbers. I am wondering if a taper gib can be made in your shop or can a blank be bought? Gib is about 13" long.
That is a replacement part that would need to come from the manufacturer of the machine. We do not have a relationship with this machine manufacturer to be able to quote it for you.
Hello,
I am trying to machine a 0.065" wide X 0.315" deep slot in CPM-10V material I am using a 0.055" dia 0.385" flute length accupro #64542996. I have tried 125-210 sfm 0.010" - 0.002" depth of cut and 3.0-1.5 inches per minute feed rates and the cutter brakes around 0.070 deep. Any suggestions are appriciated.
Hello Trent,
I've pulled up some information on this material, it shows that in the annealed state it should machine similar to D2 or M7 tool steel. In that case, the parameters are as follows: 260 SFM / .00012 per tooth / no more than .04 depth of cut. These parameters are a starting condition and may need to be adjusted based on your specific setup.
My cutter diameter is 0.055". 0.040" depth of cut is not going to happen.
Is there a better cutter choice for this application? Would an extended reach tool with shorter flute length work better? I have put a small radius on the corners of the cutter. The broken pieces I have found the corners look to be wearing quickly.
Hello Tent,
A longer tool is going put more pressure on the tool and break even easier than it could now. The .04 depth of cut is not a recommended depth, it is a maximum not to exceed.
The extended reach tools have less flute length so they are stronger where the reduced shank and the main tool shank meet, was my thought. accupro #62786108
I am needing a standard 1-3/16 -12 UN 2A what is the MSC part number
The MSC catalog shows # 7483085 1-3/16 - 12 UNS H4 and H5 for oversize Thanks
Hello, when it comes to larger non-standard thread taps the H4 is fine for a 2A/B class. Each "H" limit only represents .005" on the high side (oversize of pitch diameter). Our part# 59898452.
Can You get a standard 2A /B 0.005 won't work for this application thanks
yes a +.005 would be a special make-tap.
yes a +.005 would be a special make-tap.
do you offer Scientific Cutting Tools - 7/16–20" Port, 0.838" Spotface Diam, 1/4" Tube Outside Diam, Reamer Pilot, Carbide Tipped Porting Tool – 0.388 to 0.4895" Pilot Diam, 3.12" OAL, 0.457" Pilot OAL, 3 Flute, MS 16142, SAE J1926, SAE J514, 4 Dash No. in Cobalt?
Scientific only makes those in carbide tipped tools. We offer a HSS version from Craig Tools (00389775) but we don't have anything in cobalt.
I was wondering if you have manuals available? I just bought a used Vectrax 13" 40". I want to know everything about the maintenance of my new lathe.
Hi Mike,
The manual is about 135 pages long. If you could send your email address to me I could forward it to you that way.
My email address is milneb@mscdirect,com. Thank you!!
I have to cut this into quarters with a .100" kerf. Can I use a diamond cutoff wheel and hold fair precision?
Using any abrasive cut off wheel will give you very tight control on the width of cut. However, diamond may or may not be the best abrasive for your application. If this is pure nickel, a resin bonded diamond cutoff wheel should work well. If it's a nickel alloy, then you would want to use a CBN (Cubic Boron Nitride) wheel.
I plan on doing this on a manual mill with rotary table. My max rpm is 4000, will this be an issue using a 3" x .093" blade? Should I use a mist or flood coolant?
For safety reasons, I cannot recommend using any type of abrasive wheel on on a mill. The machine is not properly guarded for grinding wheels and/or cutoff wheels. In this application, a carbide slitting saw would be a more appropriate solution.
What RPM would you suggest and what sort of coolant? How many linear feet do you think a blade would last in nickel? I was afraid of shattering a carbide blade once it starts to dull.
Using a carbide saw, I would suggest starting at 80 SFM. Feed rates are going to depend on the specific cutter. You might also find this article helpful: https://www.mscdirect.com/betterMRO/metalworking/5-metal-cutting-tips-ni...
What would the correct rpm be for a #31 straight flute carbide drill bit into hardened steel.
Thanks
That would all depend on the drill that you have. Be careful, though, because just because a drill is made out of solid carbide that doesn't mean that it will drill hardened steel. MSC carries lots of carbide jobber drills, for instance, that are only to be used in non-ferrous materials and are less than useless in steels, let alone steel that has been hardened. If you can tell me what drill you have, I can check it out for you.
I am using a bridgeport mill. I am drilling an old winchester receiver. It isn't hardened but while drilling one of the holes, the bit I was useing got a little hot and then I lost the edge on the bit. I thought I may have hardened it a little with the drill so I was trying to complete the hole and not make it any worse. I can control the speed and lube with the bridgeport so I was wondering what the best rpm might be for a #31 straight flute carbide drill. If you have a better idea for a bit please let me know. These are not through holes and I need to tap them 6-48.
Thanks
Those straight flute drills usually work well in that material. Start out at 50 SFM / .001 IPR (1592 RPM / 1.6 IPM).
howdy , I just got a Enco 110-2011 lathe & am looking for a manual
thanks
animal
Hello!
Thanks for reaching out.
Please provide your e-mail address and we will gladly send you a copy of this manual.
hello , I am looking for a manual & parts list for a ENCO 110-2011 lathe
thank you
mike
animal@psln.com
Unfortunatley, The manual for this machine is not available. The Factory has closed down. They stopped making this machine in the early 90's. I again apologize but I cannot supply the manual or parts list. The parts are no longer sold and as I previously stated. The factory has permenatly closed.
Looking for Reccomendations on tooling, speeds & Feeds for Countersinking 46100 Armor Plate. Material has a Brinell Hardness of 477-534 BHN.
Need to produce a .790 Dia x 90 Degree countersink in a .390 drilled hole.
Hello,
With this AR plate being 50-54RC it is going to wear out any tool that is used, HSS, Cobalt or Carbide. With that being said here is and indexable 90 deg counter sink that is the best type of tool for your application. Instead of throwing out a countersink after a couple holes because of a wear notch, you can just change the insert.
73156465 1/4" MIN 90 DEG INDEX NEG CLNT FED CSNK & CHAMF
52076437 TNMG322-QM 235 CARB TURNING INSERT
02957512 6H8S35 SCREW CTT SPARE PART
200-400 rpm x .001-.0015 ipr
Thanks for your inquiry.
Please don't hesitate to reach back out with any further questions.
we have a 1984 model 951710 in the maintenance area. over time the manual has been lost. What are the acceptable spindle runout numbers on low and high speed? Also do you guys still have a user / repair manual for these?
thx
Still running that 1984 MSC mill ?? Has it treated you ok or been problematic??