By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale Jan 24th

Best Cutter for HDPE.

All Topics | Latest Posts

Search for:  in Thread Title in  
Chris12304/03/2020 20:47:06
121 forum posts

Evening, I need to slot a large quantity of HDPE with a slot drill / endmill.
It needs to make an initial plunge of 10mm depth in less than a second, due to the way the machine works while the HDPE is travelling.
What would you recommend, carbide, HSS, 2 flute, 4 flute?

Im wondering if the low helix cutters for aluminium would be better?


Edited By Chris123 on 04/03/2020 20:50:39

Nick Hulme04/03/2020 21:24:24
743 forum posts
37 photos

YG Alu Power are good in plastics.

Ian P04/03/2020 21:53:54
2412 forum posts
101 photos

By coincidence I was sent a link today for some cutters that look to be ideal for your purpose.

You should be able to Google this

'ALU XP Europa Tool'

Ian P

Chris12308/03/2020 14:36:00
121 forum posts

Thanks, I will look into the suggestions.

Joseph Noci 108/03/2020 16:10:54
739 forum posts
944 photos

I have had quite good results with 2 flute fine grain carbide endmills - these intended for straight plunge into the material.

The one flute is larger than the other, ie, the flutes are not symmetrical around the axis of the cutter, so the end of the cutter does not have a 'dead' center and cuts fully as it plunges. I will take a photo of the cutter and post for you tomorrow. 4 Flutes worked poorly - insufficient room as the swarf expands, is trapped and heats up rapidly.

I used a cutter 12mm diameter, flutes 80mm tall. The flute makes a spiral almost 2 times in the 80mm length. It was used to rough route composite wing molds in HDPE, depth at max was 25mm @ 140mm/s feed, cutter RPM = 3800. I found feeds less than 20mm/s left very poor side wall finish , I suppose due to rubbing rather than cutting.


Ketan Swali08/03/2020 16:48:23
1273 forum posts
105 photos

Consider this link or the longer ones in the same type.

I think you meant to say high helix. They are two flute, uncoated and plunge type as described by Joseph.

Ketan at ARC

old mart09/03/2020 19:35:23
1921 forum posts
151 photos

I would also go for a solid carbide for aluminium, the uncoated type. How the plastic will cut using the parameters you are confined to remains to be seen, good luck.

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

Support Our Partners
Eccentric July 5 2018
Eccentric Engineering
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