Craft Forum / Wood/Metal / Welding / July 2007

(this is a copy of a post made on sci.electronics.design)
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Hi. Lately i've become interested in building a small spot welder for
DIY use. The idea is to end up with a (relatively) portable unit, with

HELP
I am trying to weld cast steel : a flywheel to clutch basket - with
arc
The weld keeps cracking right down the centre

Is there anything to put on a weld or even bare metal to protect the metal
other than primer? I know new welds needs to be primed, but i thought i
heard of a product that can be sprayed on new welds to protect them until
primer is applied.  thanks

Hiya Folks,
Long time lurker in the process of teaching myself how to weld.   I'm using
a Millermatic 175 and have made a few items around the house with success so
ready for the next project.    I'm sticking to things that if they break, no

I have been trying to set up oxyacetylene for cutting. I have a "#12 cutting
tip"... but I couldn't find any data accompanying it.
I wanted to cut pipe about 5mm thick. I read that
"For cutting, use 15 psi for the oxygen and 2 psi for the acetylene; but

Buddy of mine runs a nice automotive shop and a month or so ago, he
calls and says his Tig welder died (ancient Miller 300 rebadged as
AIRCO) and could I check it?  Since he does a lot of A/C adapters and
so forth, I loaded up one of my spare TIG machines on the trailer and

Not sure if this is the place to post this message but since it deals with welding I thought it might be the place to get some help, I have a Miller Gold Star 300ss welder, Is there anyone that could give me any info on this welder, It is seemingly  capable of doing stick,mig and ...

First off, I have zero experience brazing (or welding for that matter)
anything.
I've got a motorcycle with a few significant holes in one of the mufflers.
Given the advanced age of the cycle and the prohibitive $$ of a new muffler,

The old welder/generator I picked up today doesn't look too bad if you sort of
squint at it and ignore the gas engine, which is missing a lot of parts. I may
get lucky and find a parts source, but right now I'm wondering if it might be
possible to just go find another motor with ...

I have a shot at what I believe is a Lincoln Weldanpower 225 for a decent
price. Comes with leads, the guy said it was a good working welder until
1.5 years ago when the owner got sick, then eventually died. Now he says
he doesn't know if it runs.

Trying to find info on Cromacast rods for welding cast iron. Ive heard they
are he greatest thing since sliced bread. Whats the scoop on these?
Jimmie

Hello,dear,
I am Alice, from YUKA ELECTRONIC(HK) CO., LTD.I get your infirmation
from internet, and know your company is a leading  manufacturer of the
welding machines.your products is in the scope of our business .So i

I've been asked to repair the main hinge on an old dump truck where the
holes are nearly worn through.
Here are some pictures:
http://www.joeswelding.biz/VolvoEars/P1000658.JPG

I've been wanting to learn TIG welding for quite a while, but the entry
fee seems pretty high! I do alright with OA, but TIG just seems
potentially so much better I want to learn it.
Anyway, I'm looking for an entry-level machine that has both DC and AC

Gentelmen
I will be welding up an exhaust system using mufflers and cats from a
1996 Mercedes Benz SL600. The material for the mufflers and cats is
belived to be stainless but the alloy is unknown.