Forum sponsored by:

D-Bit Speeds and Feeds

Search for: in Thread Title in

Mark Slatter	15/05/2021 11:03:56
65 forum posts 7 photos	Hi all, Ive never had the need to use a D-bit until now and am quite proud of my first attempt at making one. We'll see if it actually cuts anything! I'd appreciate some advice on speeds and feeds for this. It's a 6mm d-bit, the difficult bit is I'm using this on a CNC lathe and will therefore not have any "feel" as to how its cutting. I was initially thinking 100rpm, and 0.05 mm/rev feed, with a 0.5mm peck to clear the chips and keep things cool. How does that sound? I should add, the pilot diameter is 5.9mm and the material is EN9. Edited By Mark Slatter on 15/05/2021 11:07:13
Andrew Johnston	15/05/2021 11:10:44
7061 forum posts 719 photos	Depends what material you're cutting. For brass I'd be running at 500rpm and 0.1mm/rev and I wouldn't peck. Essentially the D-bit is a single flute reamer. You want to go in and out in one smooth movement with no faffing about. Andrew
Mark Slatter	15/05/2021 11:36:06
65 forum posts 7 photos	Thanks for the reply Andrew, the material being reamed is EN9. I'll get rid of the peck as you suggested.
Andrew Johnston	15/05/2021 11:49:31
7061 forum posts 719 photos	Ok, I'd drop the speed to 250rpm and feed to 0.06mm per rev and use flood coolant. Andrew
Mark Slatter	15/05/2021 12:02:18
65 forum posts 7 photos	Excellent, many thanks ill give that a try

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

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

Latest Forum Posts

*Oct 2023: FORUM MIGRATION TIMELINE*
05/10/2023 07:57:11
Making ER11 collet chuck
05/10/2023 07:56:24
What did you do today? 2023
05/10/2023 07:25:01
Orrery
05/10/2023 06:00:41
Wera hand-tools
05/10/2023 05:47:07
New member
05/10/2023 04:40:11
Problems with external pot on at1 vfd
05/10/2023 00:06:32
Drain plug
04/10/2023 23:36:17
digi phase converter for 10 machines.....
04/10/2023 23:13:48
Winter Storage Of Locomotives
04/10/2023 21:02:11
More Latest Posts...
View All Topics

Support Our Partners

Shopping Partners

Subscription Offer

Latest "For Sale" Ads

Reeves** - Rebuilt Royal Scot by Martin Evans
by John Broughton
£300.00
BRITANNIA 5" GAUGE James Perrier
by Jon Seabright 1
£2,500.00
Drill Grinder - for restoration
by Nigel Graham 2
£0.00
WARCO WM18 MILLING MACHINE
by Alex Chudley
£1,200.00
MYFORD SUPER 7 LATHE
by Alex Chudley
£2,000.00
More "For Sale" Ads...

Latest "Wanted" Ads

D1-3 backplate
by Michael Horley
Price Not Specified
fixed steady for a Colchester bantam mark1 800
by George Jervis
Price Not Specified
lbsc pansy
by JACK SIDEBOTHAM
Price Not Specified
Pratt Burnerd multifit chuck key.
by Tim Riome
Price Not Specified
BANDSAW BLADE WELDER
by HUGH
Price Not Specified
More "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