Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Fabrication & Tools > Machine Tools
Machine Tools Learn about metal lathes, milling machines and CNC tools.
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 12-12-2009, 01:19 PM   #1
mike@af
Captain Over Engineer
 
mike@af's Avatar
 
Join Date: Feb 2003
Location: New York, New York
Posts: 6,711
Thanks: 27
Thanked 29 Times in 23 Posts
Send a message via ICQ to mike@af Send a message via AIM to mike@af Send a message via Yahoo to mike@af
Fine Threading Experiment

Yesterday I was experimenting with the lathe at work since my lathe doesn't have threading gears. The lathe at work is a 15" swing Clausing Colchester, a big engine lathe. I was curious to see how small it could turn some threads. To my surprise, it cut small threads extremely well using a worn carbide insert. (I need to grind an HSS threading tool for aluminum, this was just an experiment.)

The result was this:



The piece is 3mm (~.120in) in diameter with a .2mm thread pitch (~120 threads per inch) that are .33mm deep. The piece shown was an experiment to replicate the threading on air-jacks in scale, race-damper threading, as well as experiment with threading for center locking lug nuts.

I was very pleased with the result, and I believe the result will be even better with a properly ground HSS tool instead of a carbide threading insert.
__________________
-Mike
AF Director of Media / Photographer

mike.lawrence@automotiveforums.com | AutomotiveForums.com | Flickr Gallery
mike@af is offline   Reply With Quote
Old 12-14-2009, 10:29 PM   #2
MPWR
Image Hosting Exceeded
 
MPWR's Avatar
 
Join Date: May 2003
Location: Flying in circles
Posts: 4,190
Thanks: 23
Thanked 88 Times in 80 Posts
Re: Fine Threading Experiment

Looks great, nicely in scale foe a jack. I think it would also look about right for the threading on adjustable shocks. Now, can you cut the interior threads to match it?

I think I'm going to break down and get Sherline's threadcutting gear....
__________________
It's a rough job, but somebody has to screw it up



Sorry for my por Englisch!
MPWR is offline   Reply With Quote
Old 12-15-2009, 08:08 AM   #3
Decs0105
AF Enthusiast
 
Decs0105's Avatar
 
Join Date: Feb 2003
Location: F1...
Posts: 1,410
Thanks: 3
Thanked 3 Times in 3 Posts
Re: Fine Threading Experiment

Quote:
Originally Posted by MPWR View Post
Now, can you cut the interior threads to match it?
that's what didn't work for me and left me with no other choice than buying some expensive fine thread taps and dies...
Decs0105 is offline   Reply With Quote
Old 12-18-2009, 10:47 AM   #4
mike@af
Captain Over Engineer
Thread starter
 
mike@af's Avatar
 
Join Date: Feb 2003
Location: New York, New York
Posts: 6,711
Thanks: 27
Thanked 29 Times in 23 Posts
Send a message via ICQ to mike@af Send a message via AIM to mike@af Send a message via Yahoo to mike@af
Re: Fine Threading Experiment

Quote:
Originally Posted by MPWR View Post
Looks great, nicely in scale foe a jack. I think it would also look about right for the threading on adjustable shocks. Now, can you cut the interior threads to match it?

I think I'm going to break down and get Sherline's threadcutting gear....
I'm working on grinding a tool in an attempt to cut the interior threads. We'll see how well that works out!
__________________
-Mike
AF Director of Media / Photographer

mike.lawrence@automotiveforums.com | AutomotiveForums.com | Flickr Gallery
mike@af is offline   Reply With Quote
Old 02-17-2010, 01:41 PM   #5
Adam Baker
AF Regular
 
Join Date: Jan 2008
Location: Gastonia, North Carolina
Posts: 322
Thanks: 4
Thanked 5 Times in 5 Posts
Send a message via AIM to Adam Baker Send a message via MSN to Adam Baker Send a message via Yahoo to Adam Baker
Re: Fine Threading Experiment

Wow, very nice! Never attempted cutting threads that small. Were you able to ever get the rest threaded so it would go together?

Last edited by Adam Baker; 02-18-2010 at 06:03 AM.
Adam Baker is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD


Bookmarks
Go Back   Automotive Forums .com Car Chat > Fabrication & Tools > Machine Tools

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 10:05 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts