Re: Fit-up

Hey there bro fortnapz,

It nice to know that you yourself have acquired this YAMATO weld machine, well not really a favorite in the first place but because it is the cheapest DC machine in the market that most PHM members would like to try specially as an entry level for welding noobs, anyway a year has passed and it seems the units purchased then are holding up and are still working, plus of course the after sales service we get from the seller, EY INDUSTRIAL SUPPLY INC.

Bro with regards to "FIT UP" in welding, I just don't know if any of our metal boys can give pointers regarding your query, most metal boys here are noobs/not pros in welding. Kung baga mga pang DIY pa lang ang target. I think one will have to be adept in pipe fitting and have gone out in the fields for a couple of years just doing that task .

May I suggest if you want to have an idea of it, you can Goggle search "What are FIT UP in welding" and I am sure you will find answers and videos on how it is done and using some sort of gadgets to make a perfect fit up.

HOPE THIS HELPS !! 😉 🙂 :rolleyes:

Re: Fit-up

a complete noob too..

but AFAIK, fit up in welding parlance is simply the manner, or procedure shall i say, in holding the bits and pieces together in a more precise manner and, of course, long enough in order to be welded with accuracy according to the desired angle or position..

one example is the use of angle bar in putting two pipes together. for techie example, i have seen in this forum those things in action like the fabs done by sir jay in his garage's setup..

Re: Fit-up

piping fit up ba ang need mo? I think as long as you know how read and use a measuring tool, you will do good.

just don't forget to provide strongback/support on the piece you will work on and the weld technique.

Re: Fit-up

piping fit up ba ang need mo? I think as long as you know how read and use a measuring tool, you will do good.

just don't forget to provide strongback/support on the piece you will work on and the weld technique.

how about the gap? how you dimension your pieces?

Re: Fit-up

HEY bro fortnapz,

Check out these YouTube videos :

http://www.youtube.com/watch?v=0f2lH9XK9VE

http://www.youtube.com/watch?feature=endscreen&v=9v1y4M29t7o&NR=1

http://www.youtube.com/watch?feature=endscreen&v=hQjPkZWT56I&NR=1

Here's what I got from the net:

Term: Fit-Up - Welding

Description: Often used to refer to the manner in which two members are brought together to be welded, such as the actual space or any clearance or alignment between two members to be welded. Proper fit-up is important if a good weld is to be made. Tacking, clamping or fixturing is often done to ensure proper fit-up. Where it applies, base metal must be beveled correctly and consistently. Also, any root openings or joint angles must be consistent for the entire length of a joint. An example of poor fit-up can be too large of a root opening in a V-groove butt weld.

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Posts Tagged "Welding Fit-Up"

Part of welding is a fit-up. A Fit-up requires a special skill set that includes cutting joints precisely and holding them squarely (or at a precise angle) together long enough to be welded. In short it is part of the fabrication process. When fitting, precision and accuracy are required. The very same squares, and angle finders commonly used in the carpentry trade are also used in the welding trade.

One of the very best squares that works well in the welding trade for either welding or cutting is the tri square. It’s a simple tool that can be used as a square or even a protractor. In welding it can be used for a cutting guide edge for a plasma torch, or be used to line up two pieces of metal and check to make sure the joint is still holding a right angle after tacking things up. Other squares used, such as the T-square and even the machinist square are also useful for welding and laying out large areas of sheet metal. A bevel square is useful as well, for copying unknown angles and transferring them over to your new pattern. Needle scale angle finders are used in carpentry , usually have a magnetic base as well, so it can be used to determine an angle ( (relative to the ground) needed to make a cut on a piece of pipe to complete a roll cage or even to measure the angle of a support column’s base that may be set at angle to conform to the ground. Additionally just for welders, they make special magnet squares in multiple sizes that work well for squaring things and holding things into position. Some may exert several hundred pounds of “pull” if they are large enough. These attach to the metal and can work in a variety of ways, even using the long side as a 45 degree positioner. The major issue with these however, is the constant cleaning of metal dust from the magnetic surface that is required. Keeping them clean and in good condition is difficult, but they do work well when needed.

Hope these are what you are referring to sort of learn or understand !!! 😉

Re: Fit-up

Normally, the gap is the diameter of the electrode.