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View Full Version : Is This Angle Special Made ??



JoeLee
02-18-2019, 09:03 AM
Just wondering if the rounded angle used for this stand was special made, made in house by the company or made by some mill.
I can't find any one that makes anything like it.

JL..............

https://i.ebayimg.com/images/g/btEAAOSwFfJcZcBV/s-l1600.jpg

softtail
02-18-2019, 09:14 AM
Looks like a Diacro stand.. lord knows they would have the tools to make their own.

dalee100
02-18-2019, 09:24 AM
Hi,

I've seen similar rounded angles like that on other factory items, so someone has to be making the stuff. But I suspect you would need to make a few phone calls to find it. It won't be available at your local mom and pop steel store.

cameron
02-18-2019, 09:39 AM
I designed a canopy for a small number of portable engine powered machines using angles similar to those, but longer, larger and with larger radius many years ago.

The shop foreman cobbled up a set of dies for the mechanical press brake. Heavy wall pipe for the upper, and, if I remember correctly, two spaced apart rectangular bars for the lower.

Lew Hartswick
02-18-2019, 10:11 AM
There is a line of aluminum "stuff" like that, it's narrower and has been around since the 1950 or before. I think it's still around but havent seen it for years.
Check if you wish; Widney Dorlec . Is the way it is pronounced but not sure of the spelling. It's been more than a few years since I used it. :-)
...lew...
Just checked the name is now : Looks like there may have been some "improvements" in the line and modifications of the system.
Davalow Dorlec Systems Limited





(http://www.davalowdorlecsystems.com/)

Arcane
02-18-2019, 10:49 AM
It looks like it's made from flat strip off a roll either by running it through length ways through rollers and cut to length as needed or as cameron said, short pieces of flat stock in a press. I suspect it's cheaper than buying regular square corner angles or it could just be the end user speced large radii on the corners.

john hobdeclipe
02-18-2019, 10:57 AM
Looks like a Diacro stand.. lord knows they would have the tools to make their own.

Yeah, DiAcro for sure.

They probably just roll the form into steel strip from a coil, then cut to length. That stand looks to be for a #3 bender.

BCRider
02-18-2019, 11:20 AM
Up my way some of the angle stock at Home Despot is pretty obviously formed from flat stock in dies and has a smaller but unmistakable radius of a similar style. So I'm voting for the maker "rolling their own" from flat strip stock or sheared pieces run through a bender to form the corner channels. It does make more sense for a place that wants to minimize their variety of stock on hand and hold that stock to just different gauges of sheet metal.

I'll bet that a pretty standard sort of machine in that sort of manufacturing is a roller that does long stock and cuts it off. Consider the usual shelving/bench type material such as Dexion with all the holes and slots. That sure as blazes doesn't start from an L shape. And not likely that the lengths are cut then bent. Far more likely, obvious really, that strip stock would be run through a rolling punch to do the holes and then through a set of rollers that bends it into the 90. And finally a machine that shears the angle stock to length.

greatbasin
02-18-2019, 11:33 AM
I have a fairly large Chicago leaf brake, that if set open will bend a similar radius as that. Have a good day. John

strokersix
02-18-2019, 11:40 AM
There should be witness marks revealing order of operations. Rolled from strip and parted off will result in different edge conditions compared to sheared from sheet and then bent. Or these days likely lasered then bent.

Blazemaster83
02-18-2019, 11:43 AM
Yes that's a diacro bender stand. I always pictured them being made in a press, out of flat bar.

cameron
02-18-2019, 11:55 AM
! don't know about large scale production, but "short lengths" in a press don't need to be all that short. The press brake I mentioned could easily, I think, have done 16' lengths of the angles JoeLee showed, using air bending dies.

A.K. Boomer
02-18-2019, 11:58 AM
depended on how used it does have it's strength advantages over standard issue angle iron...

Mcgyver
02-18-2019, 12:02 PM
that's an usually large radius, but we'll regularly bend our own angles for certain fab jobs so imo its not usually find non standard bent up angles. Coils are cheaper than structural.

barracudajoe
02-18-2019, 12:05 PM
Before I retired we used to make angle similar to that up to 1/2" thick A514 (T-1) X up to 96 lg. with a 2" IDR on our press brake for some of our proprietary products.

BCRider
02-18-2019, 12:18 PM
I'm thinking that once bent that then it would need a special cutter to cut to length. So likely easier to shear off strip stock since anyplace fabbing items out of sheet and thin plate like this would already be shearing so many things to size. A bit long press could likely be set up to handle multiple short pieces too.

danlb
02-18-2019, 01:30 PM
I suspect that would cut OK with a cold saw.

Dan

754
02-18-2019, 01:52 PM
Roll forming and a cut to length shear for production.
Bend in a brake for occasional production.
It looks much nicer than a harsh right angle..

softtail
02-18-2019, 03:03 PM
I just saw that exact stand/pic on Ebay...

https://www.ebay.com/itm/DI-ACRO-STAND-15-X-20-X-33-FACTORY-PAINT-DIACRO-Brake-Shear-Bender-notcher/372600593118?_trkparms=aid%3D111001%26algo%3DREC.S EED%26ao%3D1%26asc%3D20180816085401%26meid%3D581a6 3c2430f4d929e32dbf97d7d626d%26pid%3D100970%26rk%3D 1%26rkt%3D1%26sd%3D372600593118%26itm%3D3726005931 18&_trksid=p2481888.c100970.m5481&_trkparms=pageci%3A4568687d-33b8-11e9-9d25-74dbd180d57b%7Cparentrq%3A0234e2e51690ac88e2cbc0a0 ffe4c7c8%7Ciid%3A1

JoeLee
02-18-2019, 03:07 PM
Looks like a Diacro stand.. lord knows they would have the tools to make their own.Yes, it is DiAcro.

JL....................

JoeLee
02-18-2019, 03:10 PM
There should be witness marks revealing order of operations. Rolled from strip and parted off will result in different edge conditions compared to sheared from sheet and then bent. Or these days likely lasered then bent.I recently bought real nice DiAcro shear. I was just wondering. Since that company is in the bending, shearing and forming machine business I'm guessing they made their own legs.
Those stands havent changed in probably 20 years. Only think that has changes is the color they paint them.

JL............

JoeLee
02-18-2019, 03:19 PM
I just got this one a month ago or so.............Ain't it sweet? Just trying to research some history on these.
From what I've found so far the color gives an approximate mfg. date and plant location. Other than that I don't believe anything has changed.

https://i.postimg.cc/1g1YF0J4/IMG-20190206-100329.jpg (https://postimg.cc/1g1YF0J4)

https://i.postimg.cc/yJhpyJbj/IMG-20190206-100344.jpg (https://postimg.cc/yJhpyJbj)

JL............

LKeithR
02-18-2019, 08:03 PM
A lot of "interesting" ideas but I'm sure those are just plain old formed angles. Anybody with a press
brake and the proper dies could make them--shear strips of material the proper size and form them up.
All you need is a wider bottom die and a punch made of a piece of 1/2" flat bar welded to a chunk of round
stock of the appropriate diameter. We have a bunch of "home made" punches for our brake...

Stepside
02-18-2019, 09:19 PM
Same stand for DiAcro benders in 1970 or before. There were some at the High School when I started teaching there in 1970 and they were not brand new then. They were a pale green color.

studentjim
02-19-2019, 08:19 AM
Like Keith said, shear a piece of plate the proper length and width bend with a home made die in a press brake. We made tons of the stuff at work for various projects.

754
02-19-2019, 10:11 AM
What I want to see is the dies of forming tool for the angle iron, where the feet of table curve outward for more stability.

DR
02-19-2019, 12:23 PM
Yeah, Di Acro bender stand as others have said. Same design for at least 70 years.

Di Acro published pamphlets back in the day on usage and modifications of their equipment for production line work. I have one from WWII era when women were joining the factory workforces describing a bender modified so it was so simple to use "even a girl" could use it.

JoeLee
02-19-2019, 12:37 PM
I would like to see some of those old pamphlets.

JL....

DR
02-19-2019, 01:24 PM
I would like to see some of those old pamphlets.

JL....

Now days they come under the category of very collectible. I got a few when a 100 year old local machinery dealer was selling out. They had 30 or so file cabinets full of literature and manuals which they didn't have any idea of the value of so they let me go through and take what I wanted. At the auction the cabinets brought near $20K!!! Another one came from eBay.

Now that I think about it, I don't recall exactly where I filed them away. One of these days I'll dig around to find them and get the actual name of the pamphlets. They may not have even had Di Acro in the name, I think O'neil-Irwin the was the original name of the company.