On The Wire -ARC Cutter Review

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On The Wire -ARC Cutter Review

This topic has 43 replies, 13 voices, and was last updated 10 February 2020 at 07:00 by JasonB.

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7 November 2019 at 16:07 #436336
JasonB
Moderator
@jasonb
Two videos and some larger photos to go with the review of the ARC Euro Trade indexable endmills and shell mills in MEW 289. Video best viewed direct on You-tube so the captions can be read more easily.

The cutters being used on Sieg X3 & SX2.7 Mostly the 63 & 80mm shell mills on a mix of cast iron, steel and aluminium.

25mm Indexable Endmill being used on Sieg KX-3. It would have taken a faster feed so a bit slow in the video, I was wary of the larger amount of engagement in the internal radii causing chatter but need not have been

Two larger photos of the finish on some unknown steel cut with the 80mm Shellmill on the SX2.7, click any image to enlarge further.

Assortment of materials cut, from L to R – Cast Iron 6082 Aluminium EN3 and unknown steel with the CNC machined 6082 part in the foreground.

Closeup of the CNC machined part

Edited By JasonB on 26/12/2019 07:25:05
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7 November 2019 at 16:07 #38537
JasonB
Moderator
@jasonb
Additional content to accompany the review in MEW 289
26 December 2019 at 13:33 #443364
JasonB
Moderator
@jasonb
Just bumping this one up to the top now that I am informed that the paper mags have landed, I think whoever makes the digital one available must be on Holiday.
26 December 2019 at 15:37 #443375
Ian Johnson 1
Participant
@ianjohnson1
Nice demo! They look like really good quality tools, as is most stuff from Arc.

I have a small 50mm dia indexable face mill, but rarely use it, mainly because I end up with the workshop full of little razor sharp swarf everywhere! I need to get myself a fully enclosed mill.

Ian
26 December 2019 at 17:16 #443387
nigel jones 5
Participant
@nigeljones5
What spindle speed Jason? Is it likely to give the same results on a non cnc machine? Thanks.
26 December 2019 at 17:33 #443389
JasonB
Moderator
@jasonb
Cutting speeds are in all the captions and only the last fancy shape was on the CNC so rest done on machines with a max of 2000rpm, again machines used in captions. Cuts on the SX2.7 also show th espindle speed display

Depending on diameter the face mills were run at 600-800rpm on steel and cast iron and 1750-2000rpm on Aluminium and smaller 25mm dia one at 1750-2000rpm on steel and iron on tmanuals and 5000rpm on te hCNCto give the cutting speeds shown.
26 December 2019 at 18:12 #443398
Bazyle
Participant
@bazyle
Why does someone invent tooling that goes in steps giving 40mm, 50mm, 63mm, 80mm diameters? Would it have been so bad to go for 65mm?
26 December 2019 at 20:05 #443418
I.M. OUTAHERE
Participant
@i-m-outahere
Posted by Bazyle on 26/12/2019 18:12:55:

Why does someone invent tooling that goes in steps giving 40mm, 50mm, 63mm, 80mm diameters? Would it have been so bad to go for 65mm?

Possibly a close approximation to the old 2 1/2 inch ?
27 December 2019 at 08:34 #443445
Ron Laden
Participant
@ronladen17547
Hopefully we will see the digital MEW289 today.
27 December 2019 at 09:23 #443446
John Hinkley
Participant
@johnhinkley26699
I've had no problem viewing the digital copy of 289 on this forum and Pocketsmags on my iPad since last Saturday.

John

P.S. The paper copy came on Monday!

Edited to add P.S.

Edited By John Hinkley on 27/12/2019 09:24:57
27 December 2019 at 09:32 #443447
Emgee
Participant
@emgee
Jason, what is the weight of the 80mm with inserts please ?

Emgee
27 December 2019 at 09:51 #443451
JasonB
Moderator
@jasonb
That's odd John, although 289 shows on teh home page and at the top of all pages when I go to Magazines and select MEW they only start at 288?

Emgee, I will get back to you shortly.
27 December 2019 at 09:58 #443452
Michael Topping
Participant
@michaeltopping17870
I bought one of the 25mm end mills, been using it on black mild steel and it works very well, good finish. The inserts seem to last quite well also.

michael
27 December 2019 at 10:07 #443453
JasonB
Moderator
@jasonb
80mm Head with the torx screws is just about bang on 1000g and another 70g for six inserts

Edited By JasonB on 27/12/2019 10:08:22
27 December 2019 at 10:44 #443458
Ron Laden
Participant
@ronladen17547
No I am only seeing 288 as the latest in Magazines..?

Edited By Ron Laden on 27/12/2019 10:51:25
27 December 2019 at 11:37 #443461
John Hinkley
Participant
@johnhinkley26699
Ron/Jason,

You are both right, of course. Only on Pocketmags from Saturday. It normally appears on here the same day for me, at least, so I got confused. Easily done, these days, I'm afraid. I'd blame it on too much mulled wine, but I'm only allowed one pint of Guinness a week due to medication! To paraphrase the old saying – "Read twice, post once!"

Happy New Year.

Spelling corrected.

Edited By John Hinkley on 27/12/2019 11:37:59
27 December 2019 at 12:10 #443467
Emgee
Participant
@emgee
Jason, thanks for the weight, so 1070g is that inc the arbor or not ?

Reason i'm asking is that's very close to being too heavy for my machine, especially at 2k rpm.

Emgee
27 December 2019 at 12:27 #443472
roy entwistle
Participant
@royentwistle24699
Posted by Bazyle on 26/12/2019 18:12:55:

Why does someone invent tooling that goes in steps giving 40mm, 50mm, 63mm, 80mm diameters? Would it have been so bad to go for 65mm?

XD351 wrote Possibly a close approximation to the old 2 1/2 inch ?

It's possibly a close approximation to the current 2 1/2 inch as well

Roy
27 December 2019 at 13:37 #443481
JasonB
Moderator
@jasonb
Emgee, without arbor. What do you have I can weigh MT3 & R8
27 December 2019 at 16:05 #443502
Emgee
Participant
@emgee
Thanks Jason but I can add the weight of a BT30 arbor.
Nice surface finish on all those pieces, good demo's.

Emgee
29 December 2019 at 10:54 #443687
Anonymous
I just tried ordering some indexible bodies and arbors from Arc. Both R8 and ISO40 arbors are out of stock, with no restock date. Seems pointless to review items that one can't buy.

Andrew
29 December 2019 at 13:03 #443699
JasonB
Moderator
@jasonb
I got the arbors OK and another arrived a few days ago. There is still a full range of R8 and ISO 40 available from existing stock and cheaper too.

Actually the review was done a while back as the full complement of new arbours were due well in time for Xmas stocking fillers but have been held up hence the "coming soon", Hopefully Ketan will post an update
29 December 2019 at 15:34 #443720
Anonymous
Posted by JasonB on 29/12/2019 13:03:28:

There is still a full range of R8 and ISO 40 available from existing stock

Yebbut they're not what I wanted!

Andrew
30 December 2019 at 08:10 #443828
Ron Laden
Participant
@ronladen17547
I am tempted to go with the 50mm shell mill, a 2 inch cut width would be useful but I think I will resist temptation. I think my SX2 would cope with a 50mm cutter providing I kept the DOC down but I try to keep the mill within its limits and dont push it beyond.

The 25mm end mill works great so will continue with that and save the 50mm for when I upgrade to a larger mill.
30 December 2019 at 14:33 #443889
Ketan Swali
Participant
@ketanswali79440
Hi Andrew,

Apologies for the delay. The new arbors are due in around 22nd January 2020.

The main difference between the new and the 'reduce to clear' rage is that the reduced to clear range have specially made screws to secure the shell mills to the arbors, rather than socket cap head type screws being used on the new range. Please see link to the spare screws.

The arbors in the 'reduced to clear' range will fit the shell mills, but in certain cases, the flange type screw head may need to be turned down, or you can replace it with 'normal' socket cap head screws.

Generally, makers of the shell mills are totally different from makers of the arbors. Makers of arbors really have no idea about which type/maker of shell mill is going to be used with their arbor. Both items being generic in their own way… to a certain extent. So, most of the time, the locking screws are either the flange type or general socket cap head screws.

With the new range, we managed to make the new arbor making factory 'talk – discuss' with the shell mill maker. The idea being to try and match the arbor screw fit with the shell mill. Although this is a new product range for us, long term aim is to try and get consistency, so we also got the shell mill maker to 'work – discuss' with the factory from whom we buy the inserts.

Ketan at ARC.
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