Home |
Search |
Today's Posts |
|
Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
tube coping
We do a lot of stainless steel tubing fabrication and have found that milling
and abrasives both work well for coping. Using a small diameter mandrel on a stationary belt sander does a good job if the mandrel diameter is close to that of the tubing. Jancy makes a machine for this purpose but it's quite expensive and is sized primarily for pipe as opposed to tubing. Has anyone built such a machine? |
#2
|
|||
|
|||
tube coping
In article , Dueknot
wrote: We do a lot of stainless steel tubing fabrication and have found that milling and abrasives both work well for coping. Using a small diameter mandrel on a stationary belt sander does a good job if the mandrel diameter is close to that of the tubing. Jancy makes a machine for this purpose but it's quite expensive and is sized primarily for pipe as opposed to tubing. Has anyone built such a machine? I make a lot of Stainless steel handrails for houses and boats. I use a 10" atlas lathe. The tube is mounted in a vise mounted to the toolpost rest. A holesaw is mounted in the lathe chuck and the tube end is fed across the holesaw. It works really well and can be used for very accurate angle coping. The vise is very easy to build and basically consists of 2 u-bolts that hold the tube against 2 V-blocks. The V-blocks are mounted in the T-slot of the toolpost rest of the lathe. The degree markings for the toolpost rest can then be used for the coping angle. You can either use a holesaw and feed it in from the end, or use a roughing mill and feed it in from the side. You just want to make sure that the center of your V-blocks matches the center of your lathe chuck. It is much easier to use than the smaller tube cutting jigs, and cost almost nothing if you already have a lathe. I can send you a picture of mine if you like. |
#3
|
|||
|
|||
tube coping
Ernie, if you send me a picture I will put it on my Web page. At least,
put it on the dropbox! This needs to be made public! - Grant Dueknot wrote: Ernie, Thanks very much for the tip on setting up in a lathe. We've got the lathe and will give it a try. |
#4
|
|||
|
|||
tube coping
|
#5
|
|||
|
|||
Coping Tube with a Lathe - was- tube coping
In article , Grant Erwin
wrote: Ernie, if you send me a picture I will put it on my Web page. At least, put it on the dropbox! This needs to be made public! - Grant Dueknot wrote: Ernie, Thanks very much for the tip on setting up in a lathe. We've got the lathe and will give it a try. The pictures are in the dropbox http://metalworking.com/dropbox/tubelathe_0.txt http://metalworking.com/dropbox/tubelathe_1.jpg http://metalworking.com/dropbox/tubelathe_2.jpg http://metalworking.com/dropbox/tubelathe_3.jpg I got the idea from somebody else on the web. |
#6
|
|||
|
|||
Can't reach the dropbox or main web site. Am I the only one?
I've not been able to access http://www.metalworking.com/ for a while now.
Keep getting a "The page cannot be displayed" error message no matter what I try, even Ernies links below. Anyone else? Lane "Ernie Leimkuhler" wrote in message ... In article , Grant Erwin wrote: Ernie, if you send me a picture I will put it on my Web page. At least, put it on the dropbox! This needs to be made public! - Grant Dueknot wrote: Ernie, Thanks very much for the tip on setting up in a lathe. We've got the lathe and will give it a try. The pictures are in the dropbox http://metalworking.com/dropbox/tubelathe_0.txt http://metalworking.com/dropbox/tubelathe_1.jpg http://metalworking.com/dropbox/tubelathe_2.jpg http://metalworking.com/dropbox/tubelathe_3.jpg I got the idea from somebody else on the web. |
#7
|
|||
|
|||
tube coping
Following up on Ernies suggestion of using a lathe for tubing coping, I gave it
a try and it works really well. For holding the tubing, my Aloris boring bar holder worked really well with the added benefit of being able to quickly adjust the tubing position above or below the centerline of the mill for weird off center copes. The Aloris tool holder I have is sized 1" with a bushing to allow clamping 3/4" . I see in the J&L catolog that Aloris also has a holder that would do 1.25" and 1". These 2 holders will cover most of the tube sizes we deal with. I set the lock screws firmly but not rock hard and did not mar the tube. It was necessary to debur the edge after coping to get the tube out of fixture- it's a snug fit. All in all I'm very pleased and again thanks for the tip. |
#8
|
|||
|
|||
Can't reach the dropbox or main web site. Am I the only one?
In article , Lane
lanenospam@copperaccentsdotcom wrote: I've not been able to access http://www.metalworking.com/ for a while now. Keep getting a "The page cannot be displayed" error message no matter what I try, even Ernies links below. Anyone else? Lane They work fine for me. "Ernie Leimkuhler" wrote in message ... In article , Grant Erwin wrote: Ernie, if you send me a picture I will put it on my Web page. At least, put it on the dropbox! This needs to be made public! - Grant Dueknot wrote: Ernie, Thanks very much for the tip on setting up in a lathe. We've got the lathe and will give it a try. The pictures are in the dropbox http://metalworking.com/dropbox/tubelathe_0.txt http://metalworking.com/dropbox/tubelathe_1.jpg http://metalworking.com/dropbox/tubelathe_2.jpg http://metalworking.com/dropbox/tubelathe_3.jpg I got the idea from somebody else on the web. |
#9
|
|||
|
|||
tube coping
This works really well on stubborn tubing, like 4140. For oddball sizes, just bolt
a big block of Al. onto the toolpost mount, bore it thru with an end mill in the lathe chuck, slit one side of the hole & drill/tap for a pinch bolt to grip the tube in the hole. perfectly on center! bill m Dueknot wrote: Following up on Ernies suggestion of using a lathe for tubing coping, I gave it a try and it works really well. For holding the tubing, my Aloris boring bar holder worked really well with the added benefit of being able to quickly adjust the tubing position above or below the centerline of the mill for weird off center copes. The Aloris tool holder I have is sized 1" with a bushing to allow clamping 3/4" . I see in the J&L catolog that Aloris also has a holder that would do 1.25" and 1". These 2 holders will cover most of the tube sizes we deal with. I set the lock screws firmly but not rock hard and did not mar the tube. It was necessary to debur the edge after coping to get the tube out of fixture- it's a snug fit. All in all I'm very pleased and again thanks for the tip. |
#10
|
|||
|
|||
Can't reach the dropbox or main web site. Am I the only one?
I asked my ISP about this and he gave me this link which does a DNS report.
http://www.dnsreport.com/tools/dnsre...talworking.com It shows that metalworking.com is still having some problems. Lane "Lane" lanenospam@copperaccentsdotcom wrote in message ... I've not been able to access http://www.metalworking.com/ for a while now. Keep getting a "The page cannot be displayed" error message no matter what I try, even Ernies links below. Anyone else? Lane "Ernie Leimkuhler" wrote in message ... In article , Grant Erwin wrote: Ernie, if you send me a picture I will put it on my Web page. At least, put it on the dropbox! This needs to be made public! - Grant Dueknot wrote: Ernie, Thanks very much for the tip on setting up in a lathe. We've got the lathe and will give it a try. The pictures are in the dropbox http://metalworking.com/dropbox/tubelathe_0.txt http://metalworking.com/dropbox/tubelathe_1.jpg http://metalworking.com/dropbox/tubelathe_2.jpg http://metalworking.com/dropbox/tubelathe_3.jpg I got the idea from somebody else on the web. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Anyone used "Faithfull" tools? (PC50 Tube Cutter) | UK diy | |||
Replacement picture tube out of warranty? | UK diy |