Can this Bernzomatic Torch heat 3/8” aluminum square tubing for bending - LS1TECH - Camaro and Firebird Forum Discussion

Go Back  LS1TECH - Camaro and Firebird Forum Discussion > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Tools & Fabrication
Reload this Page >

Can this Bernzomatic Torch heat 3/8” aluminum square tubing for bending

Notices
Tools & Fabrication Hand | Power | Hydraulic | Pneumatic | Welding | Painting

Can this Bernzomatic Torch heat 3/8” aluminum square tubing for bending

Reply

Old 12-07-2017, 06:33 AM
  #1  
TECH Resident
Thread Starter
iTrader: (4)
 
badmfkr's Avatar
 
Join Date: Apr 2004
Location: Atlanta, GA Ft. Walton Beach, FL
Posts: 986
Default Can this Bernzomatic Torch heat 3/8” aluminum square tubing for bending

Can this Bernzomatic Torch heat 3/8” aluminum square tubing for bending

I have two pieces of straight 3/8” aluminum square tubing 3’ long that
Need it bent into a 90* .

My first attempt was to cut 2 pizzas out then bend see illustration
Aluminum did bend a litte cold but neither pizza was closed.

I think if each pizza is 45* X 2=90* correct

I would like to brase w/ aluminum maybe the Bernzomatic will be used?

also plastic welding is in my near furture

Amazon Amazon
fuild
Amazon Amazon
Attached Thumbnails -pizza.png  

Last edited by badmfkr; 12-07-2017 at 06:39 AM.
badmfkr is offline  
Reply With Quote
Old 12-07-2017, 10:23 AM
  #2  
TECH Enthusiast
iTrader: (11)
 
Join Date: Mar 2008
Posts: 650
Default

From personal experience it gets hot enough to help for sure. Aluminum doesn't really show a different color with heat so you have to be careful. The other thing you have to watch it's depending on what grade aluminum it is it won't like real sharp bends. When I bend 1" wide 1/8" thick aluminum 6061 straps the tightest radius corner I can keep without stress cracking is bending it around 1/4" round stock. Any wider than 1" I bend it around 3/8" round stock. Since you trying to pie cut it I assume it doesn't need to be a sharp 90 degree so why not just try bending it? I would think you could even bend that with a 1/2" conduit bender possibly.
tug686spd is offline  
Reply With Quote
Old 12-07-2017, 03:57 PM
  #3  
TECH Resident
Thread Starter
iTrader: (4)
 
badmfkr's Avatar
 
Join Date: Apr 2004
Location: Atlanta, GA Ft. Walton Beach, FL
Posts: 986
Default

update on fabing or trying to fab.

when I say 3/8" square tubing well that's only 2 sides of tube the other 2 sides are like tad more than 1/4".

unsure as fore quality of aluminum seams heavey for aluminum.
Attached Thumbnails -surport1.jpg   -surport2.jpg  
badmfkr is offline  
Reply With Quote
Old 12-07-2017, 06:31 PM
  #4  
TECH Enthusiast
iTrader: (11)
 
Join Date: Mar 2008
Posts: 650
Default

Well you know what doesn't work. Now to find something that does. You also know now that you only need half the angle you figured to start with. What I would try next if just cutting the pieces and welding isn't an option. Either drill 1/8" hole or slightly larger at the point of you pie piece you going to cut out. That will allow it to have more of a radius where your bending it instead of the sharp point you tried. Another thing to possibly try is cut your pie piece out the take a flat file on edge and file down in the point of the pie cut out so you have a nice squared opening on the bottom to allow for more of a radius in the bend. Fab'n stuff up is fun and there always lots to learn.
tug686spd is offline  
Reply With Quote
Old 12-08-2017, 09:15 AM
  #5  
TECH Senior Member
 
Join Date: Jul 2009
Posts: 5,491
Default

Try a MAP torch. Its hottoer.
Jimbo1367 is offline  
Reply With Quote
Old 12-11-2017, 11:01 PM
  #6  
Teching In
 
Join Date: May 2016
Posts: 25
Default

Originally Posted by Jimbo1367 View Post
Try a MAP torch. Its hottoer.

Not much. Mapp isn't Mapp gas anymore. It's now Mapp-Pro
MAP-Pro gas burns at a temperature of 3,730 degrees Fahrenheit, while propane burns at 3,600 F
Jscm3 is offline  
Reply With Quote
Old 12-15-2017, 09:16 AM
  #7  
TECH Fanatic
 
Join Date: Jun 2003
Posts: 1,143
Default

Originally Posted by Jimbo1367 View Post
Try a MAP torch. Its hottoer.
ditto

Have you tried the Harbor Freight aluminum welding rods in lieu of using a tig or mig welder.

Prepping the aluminum (cleaning with uncontaminated wire brush) is critical in order to get a good weld.

dlandsvZ28 is offline  
Reply With Quote
Old 12-17-2017, 05:52 AM
  #8  
TECH Resident
Thread Starter
iTrader: (4)
 
badmfkr's Avatar
 
Join Date: Apr 2004
Location: Atlanta, GA Ft. Walton Beach, FL
Posts: 986
Default

my stuff will be under stress.
1.is brazing actually as strong as welding?

my next plan fortube #1 is to cut in half the 2 allready small cutout pizzas for a tight fit.

then either braze myself or back to professional welder (this will be the 4th project being welded didn't factor in asscoiated costs.

I will try the benuburn and harbor frieght braze rods $15.+tax Lowes has a 2 pack of 1/8 for $4.

the back sides of tubes will have a 1/16" sheet of aluminum expoxied then revitoed together.

I will wrape the remaining 3 sides .
2. can thin aluimun be heated the streched (I have hammered into shape a few brackets w/ this sheet alu. seams like it will allow a 90* bent any more alu. cracks maybe heating will lessen the stress at these bends?

edit I am building a boat rear dive deck/platform/kicker engine bracket.

basicalley a aluminum box w/ these two tubes being surport, I design this box to be
though hull bolted on top and revitoed to lower transome.

additionally this box will be filled w/ poured in floatation foam.

Last edited by badmfkr; 12-17-2017 at 06:03 AM.
badmfkr is offline  
Reply With Quote
Old 12-17-2017, 06:13 AM
  #9  
TECH Resident
Thread Starter
iTrader: (4)
 
badmfkr's Avatar
 
Join Date: Apr 2004
Location: Atlanta, GA Ft. Walton Beach, FL
Posts: 986
Default

Originally Posted by dlandsvZ28 View Post
ditto


Prepping the aluminum (cleaning with uncontaminated wire brush) is critical in order to get a good weld.

https://www.youtube.com/watch?v=jtvOkI_pvMI
yes I grind the stuff I fab up w/ a flap wheel prior to carrying to the welder.

I have many smaller aluimin projects plan which a blazer will make look factory.
I know how to soilder so blazing looks about the same.

curious how many minutes ran at full heat will the benuburn fuel last for?
brazing myself and it's associated material cost will have to be compared to the welder his includes the materials.

I do know a man that can weld steel in his backyard shop not sure how good he is w/ ALu.

I've been doing the majority of my fab work at my friends backyard shop
he had a very nice steel shop bench w/ a 1930s model vice he explained
this old vices can't be improved.

I recently built a new work bench and am anixous to get to fabbing and paying back the ******* neibors w/ the grinder noise.

I have been messing w/ alm. boats for years and am learning how to work w/ alm. as I go from actuale experience to stuff I read/ observe.

I'm a not a metal fabricater just a hobbyisthttps://www.walmart.com/ip/10-20Pcs-Low-Temperature-Aluminum-Welding-Soldering-Brazing-Repair-Rods-3-2mmx230mm/506475068?wmlspartner=wlpa&selectedSellerId=15511& adid=22222222227125554845&wl0=&wl1=g&wl2=c&wl3=234 607704169&wl4=pla-385601420854&wl5=9012826&wl6=&wl7=&wl8=&wl9=pla&wl 10=118786637&wl11=online&wl12=506475068&wl13=&veh= sem

Last edited by badmfkr; 12-17-2017 at 06:35 AM.
badmfkr is offline  
Reply With Quote
Old 12-17-2017, 09:34 AM
  #10  
TECH Fanatic
 
Join Date: Jun 2003
Posts: 1,143
Default

Originally Posted by badmfkr View Post
yes I grind the stuff I fab up w/ a flap wheel prior to carrying to the welder.

I have many smaller aluimin projects plan which a blazer will make look factory.
I know how to soilder so blazing looks about the same.

curious how many minutes ran at full heat will the benuburn fuel last for?
brazing myself and it's associated material cost will have to be compared to the welder his includes the materials.

I do know a man that can weld steel in his backyard shop not sure how good he is w/ ALu.

I've been doing the majority of my fab work at my friends backyard shop
he had a very nice steel shop bench w/ a 1930s model vice he explained
this old vices can't be improved.

I recently built a new work bench and am anixous to get to fabbing and paying back the ******* neibors w/ the grinder noise.

I have been messing w/ alm. boats for years and am learning how to work w/ alm. as I go from actuale experience to stuff I read/ observe.

I'm a not a metal fabricater just a hobbyisthttps://www.walmart.com/ip/10-20Pcs-Low-Temperature-Aluminum-Welding-Soldering-Brazing-Repair-Rods-3-2mmx230mm/506475068?wmlspartner=wlpa&selectedSellerId=15511& adid=22222222227125554845&wl0=&wl1=g&wl2=c&wl3=234 607704169&wl4=pla-385601420854&wl5=9012826&wl6=&wl7=&wl8=&wl9=pla&wl 10=118786637&wl11=online&wl12=506475068&wl13=&veh= sem
What ever you use to clean aluminum should dedicated solely to aluminum. A wire brush for example - don't use it for anything else. Steel wool, sandpaper, etc - same rule.

If you don't you will contaminate the surface of the aluminum.

I have gotten at least 20 minutes out of one bottle of map gas - still a lot left in the bottle ($14 I recall).

Aluminum welding (tig) where I go costs about $125 per hour. To weld a bung on my charge pipe cost $30. So the price is actually higher if the job takes less than an hour. IMO you can buy a lot of bottles of MAP gas for $125.

The point is - you can buy materials and equipment and sometimes be money ahead. It depends upon how good the welds have to be.

I am learning how to mig weld. The welds aren't pretty but they hold. That said I would never sell my welding because it might break. If they break for me, that's on me and I can weld it again. Customers on the other hand expect good results if they have to pay.

This winter I am going to try to weld all of the aluminum charge pipes on my FMIC system (Procharger). However, instead of using my Miller Mig with a spoolgun, I am going to try the method in the link in a previous post.

HTH - good luck with your project.
dlandsvZ28 is offline  
Reply With Quote
Old 12-18-2017, 05:45 AM
  #11  
TECH Resident
Thread Starter
iTrader: (4)
 
badmfkr's Avatar
 
Join Date: Apr 2004
Location: Atlanta, GA Ft. Walton Beach, FL
Posts: 986
Default

Originally Posted by dlandsvZ28 View Post
What ever you use to clean aluminum should dedicated solely to aluminum. A wire brush for example - don't use it for anything else. Steel wool, sandpaper, etc - same rule.

If you don't you will contaminate the surface of the aluminum.
very good tip here the majority of my metal projects is Aluminum however I use my flapwheels, cutoff wheels on all my metals which include alu/magmesium, stain steel and thick plastics

now I will designate disc. just for Aluiminum w/ lableA


I have gotten at least 20 minutes out of one bottle of map gas - still a lot left in the bottle ($14 I recall). how big of a flame is that? like the smaller the flame the hotter it get's correct? also this reduces the fuel in container correct?

Aluminum welding (tig) where I go costs about $125 per hour. To weld a bung on my charge pipe cost $30. So the price is actually higher if the job takes less than an hour. IMO you can buy a lot of bottles of MAP gas for $125.

The point is - you can buy materials and equipment and sometimes be money ahead. It depends upon how good the welds have to be.

I am learning how to mig weld. The welds aren't pretty but they hold. That said I would never sell my welding because it might break. If they break for me, that's on me and I can weld it again. Customers on the other hand expect good results if they have to pay.

This winter I am going to try to weld all of the aluminum charge pipes on my FMIC system (Procharger). However, instead of using my Miller Mig with a spoolgun, I am going to try the method in the link in a previous post.

HTH - good luck with your project.
dam $30 for bung thats steep. buts sounds like the norm in alu. welding

yes what I do is design (firstly w/ images them use paint the document my stuff best I can.

then I hoppfully find my materials at the local scrape yard (they usalley don't sell to the public but if you ask nicely during the lunch time break they let you walk there yard I've saved alot of $ on scrape metal.

I did some research on Aluminum welders first by phone then in person (this in person was a joke I had my 2 pieces of metal fabbed marked where to weld. welding consisted of 25" X 4=100" of quicke from spool he wanted $150. I said thank you and bye.

my research lead me toward this man he was suposed to have a excellent reputation being in the alu. fab industrry and just opening his own shop I was polite when I said I'd like a couple other price quote.

I attach the first of many ongoing projects I have in various stages of completion. I thought $150 was a greedy price for 15 minutes of welding.

edit my mechanic friend told except to pay $150 for 100"

the other two where phone calls first man all he could say is I gotta look at it
that afther I explained 3 pieces welded into one and 25x4 inches of welding

anyway Guy 2 I feltlike I don't even want to wastse my time meeting.

now the thrid Guy was like Goldiedlocks just laid back enought he also wanted to look (but that wasn;t all he would say like #2.

anyway Guy #3 is the Man his shop is a old repainted building not one spec of dust anywhere there must be some German or swedish in Guy 3 because these are the cleanish folks I've ever know.
he charged me $60, maybe that was a initial introductory price but I've been back 3 times.

here's a image of some of my attempt at fabbing aluminum.
Attached Thumbnails -bracein-van.jpg   -bracebolted.jpg   -pod-welded2.jpg   -pre-paint.jpg  

Last edited by badmfkr; 12-18-2017 at 06:25 AM.
badmfkr is offline  
Reply With Quote
Old 12-20-2017, 05:37 AM
  #12  
TECH Resident
Thread Starter
iTrader: (4)
 
badmfkr's Avatar
 
Join Date: Apr 2004
Location: Atlanta, GA Ft. Walton Beach, FL
Posts: 986
Default

I will reduce burring and smooth out the small pizza one pizza at a time, this will reduce gaps between pizza and tube.

edit the white plastic tray is my cutting board
Attached Thumbnails -surport-stage2.jpg   -surport-stage2-2.jpg  
badmfkr is offline  
Reply With Quote
Old 12-20-2017, 12:42 PM
  #13  
TECH Regular
iTrader: (2)
 
Join Date: May 2017
Location: Northern VA
Posts: 404
Default

Buying your material from an actual metal supply place would probably help you out. First off the price per foot will a lot better vs what you can get at Lowes or Home Depot. They might say you have to buy a 21 foot stick or pay the cut charge etc, still a better product. See if you can talk to the guys in the back that run the cutters and see what they have in their drop pile, someone else has already paid to have it cut. Also they will have much better alloys suited for bending and structural needs.
biketopia is offline  
Reply With Quote
Old 12-20-2017, 05:01 PM
  #14  
TECH Fanatic
 
Join Date: Jun 2003
Posts: 1,143
Default

I'm fortunate in that I live in a city with a lot of aircraft mfg.

The salvage unused high grade aircraft aluminum is extremely cheap compared to Lowes and Home Depot. I don't know the exact rules, but a lot of it has to be scrapped or salvaged even though never put thru a cnc machine.

Check cnc mfg places for scrap.
dlandsvZ28 is offline  
Reply With Quote
Old 12-21-2017, 07:41 AM
  #15  
TECH Resident
Thread Starter
iTrader: (4)
 
badmfkr's Avatar
 
Join Date: Apr 2004
Location: Atlanta, GA Ft. Walton Beach, FL
Posts: 986
Default

yes I save $ at the scrape yard thats if I'm lucky finding reusable materails priced usalley $1. per LB they give$.50.
most of the time refurbished aluminum is flithy rarely they do get new metal but when they save for me).

I don't buy metal at Lowes I root around scrape metal yards like a pig roots around a field.plus if I ask anyone at lowes there for 3/8" alumunin sheet metal they would'nt know where or if it was in store.

there is only one aluminum fabricater in my area they do sell both aluminum/stainless steel.
I have bought a few pieces from there reusable scrape pile.

there stuff is cleaner, however there workshop was disgustingly dirty.and material are kindof pricie.

how doe's my pizza look?

maybe I can request price quot to have two tubes bent to my size

I need the tubes they are the first stage of project. can't just wait hope to get lucky finding at SY.

Last edited by badmfkr; 12-21-2017 at 07:57 AM.
badmfkr is offline  
Reply With Quote
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
badmfkr
Tools & Fabrication
9
12-07-2017 04:14 PM
urb0123
Automatic Transmission
10
07-10-2017 02:21 PM
5.0stang
LS4 Performance
29
09-19-2016 04:38 PM
5.0stang
LS4 Performance
23
08-30-2016 03:42 PM
oddwraith
Stereo & Electronics
15
08-05-2016 08:46 AM


Thread Tools
Search this Thread
Quick Reply: Can this Bernzomatic Torch heat 3/8” aluminum square tubing for bending


Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: