Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Welding

 
 
SFT Search:
Reply
 
Thread Tools Display Modes
  #21  
Old 10-04-2021, 09:20 PM
digr's Avatar
digr digr is online now
The Real Deal
 
Join Date: Apr 2005
Location: Duluth MN
Posts: 9,313
Default

I use a belt sander, just hold it vertical with the belt
__________________
Drawing by Smartdraw
Reply With Quote
  #22  
Old 10-04-2021, 09:26 PM
greywynd's Avatar
greywynd greywynd is offline
I can dig it
 
Join Date: Dec 2005
Location: Wainwright, Alberta
Posts: 6,981
Default

I usually use a green wheel on a bench grinder.


Sent from my iPhone using Tapatalk
Reply With Quote
  #23  
Old 10-05-2021, 12:17 AM
CaddmannQ's Avatar
CaddmannQ CaddmannQ is offline
Elite Member
 
Join Date: Sep 2021
Location: CenCal
Posts: 1,714
Default

Well I did buy a diamond wheel but in the end I may end up using a regular wheel on the bench grinder. People say it doesn’t seem to matter.

Anyhow I haven’t tested anything yet except to turn it on and off one time, but I have everything set up now on a new cart from Harbor freight.

Now it’s past 10 PM on the West Coast so it’s too late to start welding things.

It took me 45 years to get a nice welder, so the first test can and will wait for tomorrow.
Attached Thumbnails
Click image for larger version

Name:	D483AFA3-3B16-4976-A336-FF1A1215DEA0.jpg
Views:	229
Size:	211.7 KB
ID:	161804   Click image for larger version

Name:	A09FEA39-F0C2-4422-86D1-3A12555D6C05.jpg
Views:	225
Size:	184.2 KB
ID:	161805  
Reply With Quote
  #24  
Old 10-05-2021, 11:50 PM
CaddmannQ's Avatar
CaddmannQ CaddmannQ is offline
Elite Member
 
Join Date: Sep 2021
Location: CenCal
Posts: 1,714
Default

. . . or the next day. I had a lot of steel to clean up in the boatyard before I could get to the welding table. (buried)

I also had to buy wire and a plug and receptacle to make up a heavy extension cord for the welder, to get 240 power the last 20 feet. Now I can weld in the garage, driveway, workshed, or anywhere in my boatyard.

In theory. So far I only turned it on to test power and leak checked the argon.

I have everything set up for my first test weld, but it's almost bedtime. I'm to pooped to pulse.
Reply With Quote
  #25  
Old 10-06-2021, 12:13 AM
LKeithR's Avatar
LKeithR LKeithR is offline
Hey...wait...is there a prize?
 
Join Date: Aug 2011
Location: Langley, B.C.
Posts: 5,737
Default

Quote:
Originally Posted by greywynd View Post
I usually use a green wheel on a bench grinder.
Yup, green wheels (silicon carbide) is all my brother ever used for grinding tungstens. I've got one in the shop right now that has groove half an inch deep. Never heard of using diamond wheels--certainly not necessary...
__________________
Keith

Measure twice and cut once...or...wait, was that the other way around?
Reply With Quote
  #26  
Old 10-06-2021, 09:43 AM
Shade Tree Welder's Avatar
Shade Tree Welder Shade Tree Welder is offline
Grumpy Bastard
 
Join Date: Jun 2004
Location: Kankakee County, IL
Posts: 23,152
Default

Quote:
Originally Posted by LKeithR View Post
Yup, green wheels (silicon carbide) is all my brother ever used for grinding tungstens. I've got one in the shop right now that has groove half an inch deep. Never heard of using diamond wheels--certainly not necessary...
I have used AlOx wheels, silicon carbide wheels and diamond wheels. They all
work fine. But if you are grinding tungsten everyday the diamond wheel will
save you money in the long run. I have burned through a number of AlOx
wheels and even on SiC wheel, but even when I was running the biz, I never
tigged enough to justify buying a diamond grinder. YMMV.
__________________
Shade

"Prepare to defend yourselves."
-- Sergeant Major Basil L. Plumley, Ia Drang Valley
Reply With Quote
  #27  
Old 10-07-2021, 02:04 PM
CaddmannQ's Avatar
CaddmannQ CaddmannQ is offline
Elite Member
 
Join Date: Sep 2021
Location: CenCal
Posts: 1,714
Default

I didn’t actually buy a grinder. I bought a wheel. I have several motors lying around not being used to set up for this, but for my first weld I just used my Contaminated old bench grinder and the battery powered drill.

. . . and said to hell with porosity! I had to test this welder!

I had some things going against me yesterday. On top of inexperience that is.

I was outdoors welding with curtains, and so I had the Argon up a lot.

I didn’t really clean the metal enough before I started, because I wasn’t trying to get a presentation weld but just figure out basic heat settings. I regret that now.

A number 10 welding lens is just too dark for this business when I get heat down below 50 A. I’ll have to get something a bit lighter.

I was getting a bit of glare from behind me because the curtain in back of me was not dark enough to cut the light. I wound up welding with a dish towel over the back of my head. NFG

Considering how much trouble I had seeing the weld, I’m surprised things turned out this good.

Photo#1 This is a piece of 0.030” mild steel strap, folded, and then two edges of the hem welded together. This is really my second weld, and I only used a dab of filler (because there was an open eye in the hem) and then I did the rest with fusion only. That worked great until I got to the end of the lap and then I burned the strap. The problem was I couldn’t see where the lap ended to stop the bead.

#2 Same metal strap as above. This was my (ugly) very first bead with the new welder. The amperage was too low. I was attempting to use filler rod here where it wasn’t needed. I was trying to work fast, and I couldn’t see well.

This weld shows what happens when you stick the tungsten in the puddle like an ice pick LOL

I didn’t understand the pulse settings on high/low and I was way too low. It goes 0.5 Hz to 200hz if you hit the right switch. I was trying to hit two pulses per second and instead I was getting like a half. My photo number one shows I had corrected the heat (24 amps up to 48amps) but still had the pulse way too slow.

#3 This photo is inverted but it shows the section of a ‘73 Volkswagen pan where a doubler is added under the floor pan, and a jacking socket is welded to the doubler. The socket is cut completely off and all that remains is that little y-shaped business of 1 mm German steel.

#4 This is a close-up of the weld I made on photo number three. I used filler rod to bead a 1mm edge, bead over lapped edges, then start to close up the gap. I was going to see how far I could fill this with a 3/32 rod and multiple passes but I lost the arc at that point and gave up. I’m not sure if that ugly pit is porosity from Crap in the lap joint, or if I stuck the tungsten there.

#5 This is another part of the Volkswagen pan section where 1 mm steel pan doubler laps from the left to .7mm pan below. It should be above but this photo is inverted. Here I corrected the heat to 48 A and the pulse to about two/sec. There was a gap of nearly 1 mm between the metal edges and I filled that over with 1/16 rod. Again, I wish I had cleaned the metal better as it developed a big pore. I think I went over that with the arc and re-fused it. All of these welds have been burnished with a wire wheel to knock off the smut.

I’m going to go knock them apart with a chisel and see what kind of strength was developed.
Attached Thumbnails
Click image for larger version

Name:	13352535-12C1-442F-BD94-CE5D1DC8746E.jpeg
Views:	229
Size:	142.7 KB
ID:	161837   Click image for larger version

Name:	8A576F68-544E-4D58-B670-CA6FD7F8F4C1.jpeg
Views:	228
Size:	133.6 KB
ID:	161838   Click image for larger version

Name:	8F66E0FD-0566-4337-B09A-DF5F8B531B5C.jpeg
Views:	236
Size:	99.7 KB
ID:	161839   Click image for larger version

Name:	6F75C6A2-5533-4276-9199-B5683E76F966.jpg
Views:	227
Size:	190.5 KB
ID:	161840   Click image for larger version

Name:	767A9B05-4EBA-4C92-B213-5EBEAA77FB16.jpeg
Views:	224
Size:	156.8 KB
ID:	161841  

Reply With Quote
  #28  
Old 10-07-2021, 02:21 PM
toprecycler's Avatar
toprecycler toprecycler is offline
Administrator
 
Join Date: Jan 2009
Location: Petoskey, Michigan
Posts: 7,006
Default

A start is a start!

There is some decent potential showing in your tests welds so far.

One thought I have though,

1. If you are totally new to tig welding, get some heavier steel to practice on. At least 1/16- or 1/8”. I understand that you want to start with the thickness that you are wanting to tig, but use some heavier material will make the learning hand eye foot motion go easier. Welding real thin stuff requires a bit more skill, so get some practice on heavier material to hone your muscles first.


Hood time will help, along with good feedback from more experience guys. Keep posting pictures.

I will try to respond more when I have more time.


Sent from my iPhone using Tapatalk
__________________
Brian

You don't know what you don't know.

"It's what you learn after you know it all that counts." John Wooden
Reply With Quote
  #29  
Old 10-07-2021, 07:33 PM
CaddmannQ's Avatar
CaddmannQ CaddmannQ is offline
Elite Member
 
Join Date: Sep 2021
Location: CenCal
Posts: 1,714
Default

Thanks for all the advice, guys. I think I solved my helmet issue with a new Miller Elite. $320+tax at Barnes Welding.
Attached Thumbnails
Click image for larger version

Name:	EEFEC535-3EA8-4B44-AD54-6E2514E73E60.jpg
Views:	215
Size:	125.2 KB
ID:	161847  
Reply With Quote
  #30  
Old 10-07-2021, 08:01 PM
CaddmannQ's Avatar
CaddmannQ CaddmannQ is offline
Elite Member
 
Join Date: Sep 2021
Location: CenCal
Posts: 1,714
Default

By the way I cut those test welds and chiseled things apart, and everything turned out to be very strong. I was set a little too hot for most of it and I got plenty of penetration (which is better than no penetration.) The heat affected zone wasn’t embarrassingly large either.

My next test is to weld 0.030” steel to 0.060
Then 0.030 to 0.125”.

Then 0.060 to 0.060”

Finally I have to join 0.060” to 0.125, and 0.107 to 0.125.

Once I work out all the settings for that I’ll be ready to continue with my project car.
Reply With Quote
Reply

Tags
tig

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 10:04 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.