I have Tig welded several cast aluminum (I know this is steel but) small engine cases. They are very porous like your project
I heat and clean with acid then heat and clean till they stop making oily smudge then weld them with the tig. Thats the only way I have been able to get them to weld nice.

I had a similar problem with my Sq Wave 175 turned out to be a bad regulator the pin on the diaphragm had worn so it wouldn't push the valve open all the way. When you would start a weld it would have enough pressure to give you a nice hiss but it would taper of pretty quickly. I replaced the regula...

Wow...that is a very decent rig. Well done. Bet you're gonna smile every time you use that big baby for about the next year! Moz I'm always smiling when I'm at the shop It's taken me over thirty years to get the tools and equipment That I have wanted. If I couldn't afford it I made it. I have a lot...

She is 7.5 Hp will swing 16 inches Aloris tool post and a box of Bits.

I love doing Buckets lol I've found that shop air and lots of pounding on the plates with a good Hammer helps but it needs to be dry If not it just makes more mud. in the wet case I will usually warm up the repair area first with the old Rosebud then the air and BFH ( BIG FAT HAMMER ) Hope it helps

I have made do with an Atlas 12 inch lathe for nearly 20 years all the while dreaming of a bigger turning tool. Well now the shop has a new to me space taker. I now have a Jet 1440 3PGH Lathe (I know somebody will say Its not an American Piece of Iron so it's junk). It came from a small Processing c...

I've used a number 10 or 11 shade in a set of cutting torch goggles when repairing a loader frame before just don't learn the hard way like I did cover your face and head I used two painting head covers they are made of thin cotton and worked well I spent a three days inside that loader frame it was...

I do a lot of angle Iron frames I keep several different size pieces of square tube cut about 8 inches long under my Chop Saw whenever I cut angle either way flat on top or bottom I place the square tube in the angle clear of the cut to support it so all I have to do is roll the angle 180 deg to cut...

I have come to believe my legs get mad at me for standing to long because when I am standing tig welding just getting everything right where I want them my right leg will push down on that damn peddle and blam I get a nice arc flash from about 8 inches away.

http://i1160.photobucket.com/albums/q500/DrDogwood/Block%20repair_zpsybune7sm.jpg Sorry it took so long to get back on here For Nickle tig rod Ni-Rod 99 I just Repaired a Cast iron Block for a Diesel engine. One of the Motor Mount lugs was Broken off and gone so I turned a new one on the Lathe, Wel...

First off I wanted to say Thank you for what you have posted I have learned a lot. Probably the best tip was going to a gas lens set up Helped my tig work immensely. But now I'm having some issues that I haven't seen covered yet. I and assume some others are having trouble when welding tube that wil...

That's basically What I did a little forward of the puddle then back to weld that spot. And Amps well I could use a few more I was maxed out on my Squarewave 175 when I can afford to do so my next investment will be a welder with more leg room and horsepower.

Lincoln Squarewave 175 Lincoln Ranger 250 GXT Lincoln SP 125 Lincoln Idealarc250 Miller XMT304 Miller Suitcase X-Treme 12VS Millermatic 200 Hypertherm 85 Torchmate 4x4 Cincinnati Mill Atlas 12 inch lathe Atlas small horizontal mill Shop built guillotine bender " " Plate roller 20 ton pres...

I run a Torchmate and love it. I taught myself enough CAD in a week to be able to run it. It has a very simple to run program and the Tech support is awesome. Lincoln bought them out and put there name on them now but it is the same parent company. Another nice thing is YouTube has all their trainin...

Might be a little off topic but does anyone else have Gremlins in there shop? I set my 12' tape down doing a job, go to pick it up and its gone. After looking all over I find it in the next bay on the mill. I spend more time looking for a tool I just had then working. Somebody please recommend a goo...

Lincoln Squarewave 175 Lincoln Ranger 250 GXT Lincoln SP 125 Lincoln Idealarc250 Miller XMT304 Miller Suitcase X-Treme 12VS Millermatic 200 Hypertherm 85 Torchmate 4x4 Cincinnati Mill Atlas 12 inch lathe Atlas small horizontal mill Shop built guillotine bender " " Plate roller 20 ton press...

I have tig welded a lot of cast using Ni-rod It's very expensive but if you are careful with your preheat post heat and peaning it will hold and last. the last job I did was a ford 8N axle housing that was broken in half. lots of time and patients and a happy customer.

Well success or well good enough lol Definitely a Gorilla weld not very pretty but stout as hell. I cleaned it and pre heated it again and then passed over the seam a few times with just enough pedal to keep the arc going and cleaning then went to the start point and it started to flow better. If th...

Thank you I will try that next The shop is starting to smell really foul from all the hair on the floor getting burnt by sparks.lol
I hope I can get it to weld because I already have a lot of time machining it.

My two cents take it as you will. Be careful buying a used plasma cutter make sure you can test the unit on some solid material. Saving money up front is great till you have to spend more to replace the torch than you paid for the machine. Stick with a brand name machine also the China stuff will no...

Ok guys working on a project for the shop. Fabricating a motor mount for the Portable Line bore Machine I'm building. A lot of the aluminum I have came from my cousins shop when he passed away. I have some 3/8" plate that welds very nice but the 3/4 x 1 1/2 bar stock welds like crud when the pu...

Oxy/Acetylene can be fun lol We Started with plastic oil cans quart then gallon then 2.5 gal then a 5 gallon pail and a 30 gallon drum. After we set off the 55 gallon drum we decided we had better quit before some one got hurt. It removed all the grass in a 20 foot circle and took several minutes fo...

Well that answers That Thank you all I was just hoping to use a gas that I all ready have and pay lease on the tank. I use the tri-gas when I mig stainless I have it set up on my Millermatic 200 that is set up to run Stainless only. I priced out a new Lincoln PRECISION TIG 275 today. Well lets just ...

Hello Well New to these forum things so let me give this a try. Jody Talks about adding Helium when tig welding to Make a smaller machine act a little bigger. My question is this. I have Tri-Gas (90%Helium 7.5%Argon 2.5% CO2) can I add this to my Argon threw a Y In my supply line or will the Co2 giv...