Great video too by the way, helped me out allot as the formulas I was using had 300 and i couldn't understand why my answers where always different when i compared with other people online. The 318.3 was the key. Thanks!
Ok so i understand all this. i have a feed rate but what tells me how deep of a cut can i make? or how much bite to give the endmill. i want to calculate feed rate RPM aswell as my axial and radial depth of cut. how do i incorporate all these together. pleaaaasee help!
For cnc milling machine I use same formula, but in more simple way. Depends on the tool you are using and on what material you are gonna machine there is m/min number in the catalog. Here you have 155 m/min and I just add the zero's at the end so it becomes 155 000 divided by Pi divided by 10 and you can easy calculate that with machine, phone or computer calculator.
Mr Stikkelman Thank you for your clear explanations on G programing. Could you explain us how to program a NPT thread in a milling machine by interpolation? I did oone time ago in it was a lot of calculations for a 1 inch NPT
The last week I had the problem to make a part bigger than the chuck, later I ralized I nedded to make jaws but I have never made any soft jaw. My only choice is to try it, but before that I would like to view examples, do you have an example picture for gripping parts bigger than the chuck? should I consider any special consideration for calculating speeds?
Hello Sir, Thanks a lot for sharing. I had a small doubt ... in the above tutorial to how much step over and depth of cut we are calculating feed and rpm..? Pardon me if my question is stupid.
thaks for sharing :) your videos are great. I have to calculate the speed for the cnc lathe, Constant surface speed and feed per revolution, but I didn't find any material (common used) speed charts for carbide inserts. I also found that too many variables affect such as the depth of cut, boring bar diameter, the type of operation, threading, grooving, parting, internal turning, how can I consider al these factors and find the best speeds?, is there any paper that I most read?
Hello, first thanks for your video, i want to ask you if you are shore about your RPM formula? I use for mm this one RPM = 4 x surface speed x 25.4 / diam. there is a lot of confusing tutorials on youtube, with your formula you get more then double RPM value,
+Bartos Alin Hello Bartos. Cick on this link and it will help you double check your calculations. Thanks for watching. Tomwww.kennametal.com/en/resources/engineering-calculators/miscellaneous/speed-and-feed
sir when we r cutting a end face on turning . then haw ill we find out max rpm g50 . and if we want to do cutting in g97 so haw ill we find out rpm values for g97.
Great video too by the way, helped me out allot as the formulas I was using had 300 and i couldn't understand why my answers where always different when i compared with other people online. The 318.3 was the key. Thanks!
How do you determine the table speed? Depends on material? Depth of cut?
What about when you are gang milling with for example ( 1 x 65mm HSS Slab 12 teeth cutter and 2 x 160mm Side and Face 20 teeth cutters?)
Ok so i understand all this. i have a feed rate but what tells me how deep of a cut can i make? or how much bite to give the endmill. i want to calculate feed rate RPM aswell as my axial and radial depth of cut. how do i incorporate all these together.
pleaaaasee help!
For cnc milling machine I use same formula, but in more simple way. Depends on the tool you are using and on what material you are gonna machine there is m/min number in the catalog. Here you have 155 m/min and I just add the zero's at the end so it becomes
155 000 divided by Pi divided by 10 and you can easy calculate that with machine, phone or computer calculator.
Could you shoot a video with Feed Per Tooth in inches? I was a little confused with metric. Please help me.
Mr Stikkelman Thank you for your clear explanations on G programing. Could you explain us how to program a NPT thread in a milling machine by interpolation? I did oone time ago in it was a lot of calculations for a 1 inch NPT
The last week I had the problem to make a part bigger than the chuck, later I ralized I nedded to make jaws but I have never made any soft jaw. My only choice is to try it, but before that I would like to view examples, do you have an example picture for gripping parts bigger than the chuck? should I consider any special consideration for calculating speeds?
Hello. Thanks for the video. It is so useful to understand the subject.
I want to ask; is that the same thing FPT (Feed Per Tooth) and Chip Load?
yes, those would be the same.
Hello Sir,
Thanks a lot for sharing. I had a small doubt ... in the above tutorial to how much step over and depth of cut we are calculating feed and rpm..?
Pardon me if my question is stupid.
thaks for sharing :) your videos are great. I have to calculate the speed for the cnc lathe, Constant surface speed and feed per revolution, but I didn't find any material (common used) speed charts for carbide inserts. I also found that too many variables affect such as the depth of cut, boring bar diameter, the type of operation, threading, grooving, parting, internal turning, how can I consider al these factors and find the best speeds?, is there any paper that I most read?
What about the tool material and work material, dosent they have any control over n,f,ap.?
have a couple questions. I'm new programming lathes. HOW DO YOU CALCULATHE FEED PER REVOLUTION IN INCHES, AND WHAT IS TABLE FEED.? THANKS IN ADVANCE
Hello, first thanks for your video, i want to ask you if you are shore about your RPM formula? I use for mm this one RPM = 4 x surface speed x 25.4 / diam. there is a lot of confusing tutorials on youtube, with your formula you get more then double RPM value,
+Bartos Alin Hello Bartos. Cick on this link and it will help you double check your calculations. Thanks for watching. Tomwww.kennametal.com/en/resources/engineering-calculators/miscellaneous/speed-and-feed
surface speed and SFM are the same or different. Please help me out!
sir when we r cutting a end face on turning . then haw ill we find out max rpm g50 .
and if we want to do cutting in g97 so haw ill we find out rpm values for g97.
Hello sir plz help me and explain to me...20 mm dia aluminum bar..how much rpm and feed??
hi there, I'm a little confused with the feed per tooth sum. 254/2000x4=.508 doesn't it?or am I missing something?
bease01 Correct. That is .508mm per tooth, or .020 Inch per tooth.
+bease01 use MDAS (multiplication,division,addition,subtraction)
Hi Tom
Why have you got .0317 from the sum of 254/2000x4? this sum = .508
Thanks John
Make sure to multiply the 2000 x 4 first. That makes 8000. Then divide 254 by 8000. Thanks for watching.
Tom Stikkelman sir i want cnc lath rpm and feed formula chart
speed and feed is k but how cued I take the depth of cut for a cutter
I want know cnc turning machine cutting speed , rpm,feed and cutting velocity calculations
Nice explanation. Thanks
thanks for the tutorials Sir!
sir how about feed and speeds for cnc lathe
Yes that means the same!
thank for this useful vid ! i'll subscrible for more infos ! thank a lot
m/min divided by mm? Uhh..?
upload formula in chart plzz sir