Question about Miller SYNCROWAVE 250 DX TIG RUNNER WELDER 951117

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Tig my pudle melts into gray not shinny - Miller SYNCROWAVE 250 DX TIG RUNNER WELDER 951117

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  • Robert Lee May 11, 2010

    Hi

    are you welding alloy, are you using AC current, what gas?

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Ensure you have the correct angle when using the torch = 22-24 degrees from vert: this will provide good gas coverage. setting should be 15 - 20 ltrs using a "flow meter".clean the material thoroghly then weld , dont clean then leave for a long time.
Argon gas sometimes can be contaminated and cause heavy soot on the weld bead,
TIG electrode should be Zirconiated with a rounded end not pointed.
Use forehand ,method

Posted on Feb 15, 2009

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Can't set up syncrowave 351 to tig weld aluminum. I can not seem to get the settings right to melt the aluminum. It just leaves a bif spot on the aluminum plate.The plate is about 1/4" thick and...


Set the "arc balance" control between 40-50, also. You need to be up around 200-220 amps too. Make sure you're using 3/32 tungsten (green, red) and running about 25-30 cfh on your argon. Ball that end on the tungsten.

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Finding it hard to get the metal to pool


Simply turn up the amperage on the welder. The thicker the material, more amps are need to heat the parent metal.

However each metal is different and other factors come involved. For example, Aliumium melts at a temperature of 660 'C but has an oxide layer on the surface which melts at roughly 2100 'C. Therefore you need a T.I.G. welder with a polarity of AC HF (high frequency), to increase the hertz to deal with this high melting temperature oxide layer.

There are other factors such as sharpening the tungsten to a point if welding stainless steel/carbon steel. By doing this the arc is applyed in one direct spot rather then disposing so you can heat the metal into a pool quicker.

Make sure you have your polarity right:

DC Negative = more heat into workpiece, deeper penetration. Standard setting for steel

DC Positive = more heat into electrode, less penetration, best left for thin metal.

AC, best for non-ferrous metals, like aluminum, because the back and forth flow provides cleaning action.

Apr 16, 2011 | TIG Welders

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I am welding 19 gage steel. WHAT DO I SET THE MACHINE AT. Seams to burn hole before start my pass


You want to set the lever to DCEN and set the amperage at perhaps 40-45 amps (this will be the max when the pedal is fully depressed). I suppose we need to know what gas you are using but I would suggest using Argon. Sneak into the melting point - too few amps is not going to kill the job, so gradually depress the pedal until you find that magic combination of heat input and speed.

It would also be very helpful to know what tungsten you are using and at what diameter. I would suggest using 1.5% Lanthium or Ceriated Tungsten with a diameter of at least 0.50" but not more than maybe 0.100" ground correctly to a point. You can use a larger diameter but it might just get in the way of seeing. I use 1/8" for almost everything.

For thinner metal and for less experienced weldors, it's helpful to get the weld started away from an edge. Edges melt faster so less heat input is needed. It might take a little practice.

One weldor could weld 19 gage metal with a lot more amps than another so a lot of it is up to the experience of the torch holder.

Mar 28, 2011 | Miller SYNCROWAVE 250 DX TIG RUNNER WELDER...

2 Answers

How too set up a tig welder for welding thin steel?


DC current, electrode negative (DC Straight, DC-), High frequency for start only (really don't have to use high freq at all for steel but it helps establish the arc without scratching), 1 amp per thousandth of material thickness is a good setting to start, adjust from there for the job. 1 amp/thousandth also applies to aluminum- it has a lower melting point than steel but conducts heat much better so power to weld is very nearly the same.

Use a sharp tungsten, don't ball it at all (as you would for AC work).

lp

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Giant inverter tig mma111 230 volt


check if the load on it is not more than its capacity and check the batteries if they are still in good condition

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My tungsten appers to be melting when i am welding aluminum also leaves black residue when welding


TIG TORCH MAY NOT BE RATED AT THAT AMPERAGE .MIGHT BE BETTER TO USE 1/8 PURE TUNGSTEN. BLACK RESIDUE MAY BE CAUSED THE CORROSION OF COPPER GUTZ DURING WELING ,DO TO INTENSE HEAT. OR MAYBE CAUSED BY FAILURE TO CLEAN METAL AND/OR DIPPING THE TUNGSTEN.

Jul 02, 2009 | Miller Syncrowave 200 Tig Welder Cover...

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TIG welder tips


Go to your local welding supply store. A TIG welder is a specialized welder that cannot be found at a building supply store. Stores like Maine Oxy-Acetylene Supply or Grainger Industrial Supply will carry them. Look in the classifieds of publications like Uncle Henry's. There you might find a TIG welder that someone is selling—and it may be at a good price. Be sure to ask the owner questions and take a look at the TIG welder before buying it. Explore eBay. Yes, even eBay has TIG welders. You'll need to ask the buyer questions about the welder's history and more. Perhaps, if the seller is near enough, you might be able to pick up the TIG welder yourself and save on shipping. Visit online retailers. Retailers like Welders Direct or Welding Mart carry TIG welders and would be able to answer any questions you might have (see Resources below). Consider the manufacturer of the TIG welders themselves. Lincoln, Miller, Hobart and others have their own websites. Call the companies directly and ask a lot of questions. These vendors are the best product source for welders (see Resources below).

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