By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Forum House Ad Zone

Calculating Feedrates for drilling with the Sieg KX1

All Topics | Latest Posts

Search for:  in Thread Title in  
Steve Withnell18/07/2020 16:38:43
avatar
858 forum posts
215 photos

 

I've been puzzling over the feed rates when drilling with a CNC. I found this table, but it doesn't link to material type. How do I calculate feed rates when drilling?

A specific would be drilling 3mm holes in EN3 square bar as opposed to drilling 3mm holes in aluminium. How do I go about calculating the feedrate in those different materials.  If I use that data, then I get to 150mm/minute in mild steel - is that about right?

Table:
 

Recommended Feeds of Various Diameter Drills

Diameter of Drill - Inches Feed Inches per Revolution

Under 1/8 001 to .003

1/8 to 1/4 .002 to .006

1/4 to 1/2 .004 to .010

1/2 to 1 inch .007 to .015

Edited By Steve Withnell on 18/07/2020 17:07:42

JasonB18/07/2020 17:14:49
avatar
25215 forum posts
3105 photos
1 articles

Fusion chucks out speed of 2910rpm and plunge rate of 131mm for 3mm drill in low carbon steel

Steve Withnell18/07/2020 19:09:40
avatar
858 forum posts
215 photos

Thanks Jason, I calculated manually 3032 rpm and 156 mm/minute which is a bit more aggressive, but I can see that I've been a bit optimistic with the "feed inches per revolution" value. If I back it off to where it should be I get your numbers. I'll go and run with that, see how it works out!

Regards

Steve

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Sign up to our Newsletter

Sign up to our newsletter and get a free digital issue.

You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy

Latest Forum Posts
Support Our Partners
cowells
Sarik
MERIDIENNE EXHIBITIONS LTD
Shopping Partners
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest

 

Donate

donate