Search found 293 matches
- Tue Jun 14, 2005 8:07 pm
- Forum: Sheet Metal Fabrication
- Topic: Bending Aluminum Pipe?
- Replies: 11
- Views: 59361
Re: Bending Aluminum Pipe?
"Go to a mufler shop. They will have a tube bender and will be gald to bend your tubing for a small fee. " Muffler shops have benders meant for relatively thin wall exhaust pipe. The dies they use are different than a conventional tube bending die. There's a chance if the size pipe is near...
- Mon May 30, 2005 8:36 am
- Forum: General Discussion
- Topic: hard steel turning
- Replies: 9
- Views: 5003
Re: hard steel turning
"I am thinking my punches are maybe a 62 hardness and made of M2 or A2 but regular carbide is just messing them up." Most punches, like Roper-Whitney sheet metal type, are much softer than Rc 62. The punches used in CNC punching machines tend to be quite hard though. BTW, I've made punches...
- Sun May 29, 2005 8:27 am
- Forum: General Discussion
- Topic: hard steel turning
- Replies: 9
- Views: 5003
Re: hard steel turning
tnta, The process of turning hardened steel is referred to as "hard turning". It's done on rigid CNC lathes with special inserts. Not a process for the average home shop guy. Thor punch company tells me they make their punches from pre-heat treated blanks and "hard turn" the busi...
- Tue May 03, 2005 10:42 am
- Forum: General Discussion
- Topic: Low Cost Metal Stamping Press
- Replies: 2
- Views: 2479
Re: Low Cost Metal Stamping Press
"I will need to get a die made also"
I think the die maker could give you some inidication of the tonnage required.
I think the die maker could give you some inidication of the tonnage required.
- Fri Apr 22, 2005 11:56 am
- Forum: General Discussion
- Topic: 2 mm square tool steel
- Replies: 2
- Views: 2327
Re: 2 mm square tool steel
Try Parker Steel. They only deal in metric sizes.
- Mon Apr 04, 2005 9:13 am
- Forum: General Discussion
- Topic: ID on Cont Cast Iron Bar
- Replies: 2
- Views: 2255
Re: ID on Cont Cast Iron Bar
"if there is a standard color coding system for ID'ing alloys of continuous cast iron bar (such as Durabar) like there is for rolled steel alloys? " Wish that was true, but there is no standard color coding system for steel alloys. Every vendor and mill seems to use a different color codin...
- Mon Mar 21, 2005 2:51 pm
- Forum: Sheet Metal Fabrication
- Topic: Bend angle on Di-Acro Brake?
- Replies: 5
- Views: 9478
Re: Bend angle on Di-Acro Brake?
I have customers with the latest and greatest in CNC press brakes. Supposedly, these will do an accurate bend angle the first time. They tell me at least one test piece is still needed so you aren't alone with this problem. One thing to watch out for in "sneaking" up on a bend. Once you re...
- Mon Mar 07, 2005 12:16 pm
- Forum: General Discussion
- Topic: VFD Controller
- Replies: 5
- Views: 2802
Re: VFD Controller
FWIW, I've been told some of the newer VFD's can tolerate switching devices between them and the driven motor.
- Mon Mar 07, 2005 12:13 pm
- Forum: General Discussion
- Topic: Bison face cutters
- Replies: 2
- Views: 1788
Re: Bison face cutters
Those type cutters may be okay for very light work. With the clamp holding mechanism for the insert these are not at all in the same league with the Kennametal and other types using screw down inserts. Taking an angled plunge with a clamped milling insert may cause the insert to move in it's pocket....
- Tue Feb 15, 2005 9:33 pm
- Forum: General Discussion
- Topic: Chrome cylinder rod
- Replies: 12
- Views: 5380
Re: Chrome cylinder rod
Hmmmm....you guys are talking about plated cylinder rod. Back in the sizties when I was in college I had a job at Cunningham MFG in Seattle. Their main product line was pneumatic and hydraulic cylinders. They advertised as being the first cylinder manufacturer to use hard chromed rods. I know the ro...
- Thu Feb 10, 2005 9:23 am
- Forum: Sheet Metal Fabrication
- Topic: Sheet Metal Cutters
- Replies: 13
- Views: 14488
Re: Sheet Metal Cutters
Uhh, Doug......
You already have a cheap knock-off wheel type shear that you say doesn't perform as expected.
Do you really want to buy a Beverly knock-off that also won't perform as expected?
As with all tools, you get what you pay for.
You already have a cheap knock-off wheel type shear that you say doesn't perform as expected.
Do you really want to buy a Beverly knock-off that also won't perform as expected?
As with all tools, you get what you pay for.
- Mon Feb 07, 2005 6:35 pm
- Forum: General Discussion
- Topic: reasonable prices for used tooling- question
- Replies: 9
- Views: 3830
Re: reasonable prices for used tooling- question
"In trying to determine a fair value for this stuff, he looked up all the list prices in the MSC book, and offered the lot to me for 25 cents on the dollar. " You haven't given us much info on this guy, but a number of times I've seen older guys shutting their shops for retirement who don'...