TIG Pulse for Stainless Steel TIG Pulsado para aço inoxidável

[rsvaughanie]

Hi, u need get a pulsed mig for stainless if ya wana do it quick i could do this same piece in seconds with the pulsed mig + argon 2 percent CO2 mix, 1mm 316 wire,no spatter just a quick wire brushing after n its bling, plus nice and uniform.

[MrSjakietogh]

@hybelkan1nen no it depends on your welding speed not the amps,greater amps means you have to faster with your hands

[BrazilWelds]

@hybelkan1nen Hello friend! The stainless steel need approximately 80% of the Amps that are used for mild steel. For example: MILD STEEL. BUTT JOINT, METAL THICKNESS = 1/16" (1.59MM), TUNGSTEN ELECTRODE 1/16" (1.59MM), FILLER ROD (If required) = 1/16" (1.59mm) - SETTING 60 - 70 AMPS. For the same situation but, in the STAINLESS STEEL MATERIAL, SETTING = 40 - 60 AMPS.

[Mokdo68]

Not very good, he was running it to hot for 14 ga.to much under cut not uniform. should have welded a little faster. Keep practicing, you'll get it.

[BrazilWelds]

@Mokdo68

Thanks for your tip and advice.

[TSorovanMHael]

Here's a dirty little secret-This application can be easily MIG welded! All you need is a simple, economical, easy to use CV power source, Ar + 2%CO2 shielding gas, and a 1mm 308L or 347L wire!

In fact, TIG is much less desirable, due to the unbelievably slow speed, excessive heat input, and high operator skill required. Good MIG parameters are 350 inches per minute, 17-18 volts. (I'm not sure how that converts to meters or centimeters per minute. )

[BrazilWelds]

@TSorovanMHael

Excuse me friend, this is not so simple. When we welds stainless steel, we must consider the different type of finish. For example (2D, 2B, Nº 3, Nº 4, BB, Nº 8). The finish 2B (Cold rolled finish annealed and descaled with skin pass) is the most used. And this finish (2B) cannot be copied. So, the spatter cannot paste in the stainless steel plate. The TIG process takes longer, but outweighs the costs to do finishing.

[BrazilWelds]

@TSorovanMHael

Also the parameters do you recommend, 350 inches per minute (8.9 meters per minute) is not possible use in the joint 14 Ga. (1.9 mm), which I am welding in my video. This blend Ar + 2% CO2, have a poor bead contour.

Thank you for watching my videos

Greetings from Brazil to you.

[TSorovanMHael]

I believe that Ar/2%CO2 is a "low energy" gas mix. The lack of reactive gas reduces the weld current for any given wire feed speed. The poor bead contour quite simply is results from the lower heat input compared to more reactive mixes. BUT, for something as thin as 12Ga, lack of weld energy is not usually a problem. To compensate simply increase WFS, volts, and travel speed. It is my understanding that it's not advisable to MIG stainless with more than 5-6% CO2 due to carbon pickup.....

[BrazilWelds]

@TSorovanMHael

I think I was rude in my reply to you because all the welding processes are important, depending on the base material, weld joint, number of parts, welding position. TIG / MIG / SMAW / Oxiacetilene Welding, Torch Brazing may be the best choice. Thanks

[TSorovanMHael]

@BrazilWelds Yeah, you're right. If  weld appearance is of vital importance, also lack of spatter TIG is definitely the way to go. It wasn't clear to me in the video that appearance was the reason you are using TIG.

[boisjkhalil]

Hi Brazilwelds

Nice weld, the position on the filler rod as you do is a good idea, i use also 2300 ACDC kempi, i have a problem with thin material

[BrazilWelds]

@boisjkhalil Whenever possible I put the rod and not move it more. This will avoid the contamination of the tip of the rod by atmospheric air. The Kemppi 2300 ACDC machine welding is excellent. For thin material in stainless steel use high pulse and cool the weld rapidly. If possible use backup strip. And fastening devices.

Thank you for watching my videos

Greetings from Brazil to you.

[anoll]

Hi im in school for welding currently and have just started learning how to pulse but i dont have too much knowlege on it, could you tell me what pulse settings you were using and what size filler? Also if you could tell me what pulse setting to use for 22ga stainless, im using a 1/16 thoriated tungsten and ive been at around 30 amps (i think its too much) anyways your welds looks great keep it up and thanks for the vids!

[BrazilWelds]

@anoll

Hello Friend! Following the welding parameters for TIG Pulse

Peak current (high amperage): 121 A

Background current (low-amperage): 27 A

Average current: 85 A

Pulse Ratio: 60%

Frequency: 1.5 Hz

Size filler: 2.0 mm or 3/32

[BrazilWelds]

Pulse setting for 22 ga stainless steel. You must fix the plates with any device. Also you must to use a purge argon. I SUGGEST DO YOU USE HIGH PULSER

Start the weld with the following parameters, (approximate):

Peak current (high amperage): 35 A

Background current (low-amperage): 7 A

Average current: 17 A

Pulse Ratio: 35%

Frequency: 340 Hz

Tungsten electrode: Thoriated 1/16" (taperad with 2- 3D)

Size filler: 0.039 OR 0.045

Have a nice welds.

[eernoo]

Great technique and beautifull joint! Got to try this pulse welding some time.

I am from Finland and it delight me to see finnish Kemppi welding machines to be used at the other side of the earth :) Keep posting these videos.

[BrazilWelds]

Dear friend of Finland. Tkank you very much for your words. Try to do the welding with TIG Pulse. Keep a steady hand, form the weld pool , put the filler rod , and not move the filler rod, then proceed with the weld bead, keeping the torch without oscillation. Have a nice welds. Greetings to you from BRAZIL

[BrazilWelds]

I know very well the machines welding of the Kemppi, because I worked for a company that was distributor of kemppi here in BRAZIL, I was a demonstrator welder of the welding machines kemppi in TIG, MIG/MAG and MMA process. If you need some tips please mail-me

[Kisiel888]

I have a problem in MMA with Vertical Position - Down To Up, I can weld in this position foremly and now i forget the basic technique, i know that i must begin in right side to left side and higher about 2mm but somebody must give me a tips;)

I will be thankful;)

Sorry for my english, but I'm from Poland:)

[BrazilWelds]

Dear friend from Poland. For welding in SMAW (MMA) process in the vertical position in the direction uphill (some times referred to as "vertical up"). The following actions may be taken to prevent or control filler metal sagging. 1) Hold a short arc. This will permit more filler metal to transfer from the electrode to the weld pool. 2) Use a current setting that is as low as possible, but will still produce well-fused welds.

[BrazilWelds]

3) Make multiple pass welds. Molten metal in a narrow weld pool will cool more rapidly and tend to slag less.

4) Use a flip motion to allow the metal in the weld pool to cool.

5) Use an electrode motion which will allow the metal in the weld pool to cool.

To control the weld pool heat, and allow the metal time to cool, a flip motion is used. With a flip motion, the electrode end is momentarily moved forward and raised slightly. It can not be raised too far or the arc will stop.

[BrazilWelds]

The electrode is then brought back to the rear of the weld pool to continue the weld. During the time that the electrode and arc are moved up, forward, and back again, the weld pool cools slightly. This flip action is continued throughout the weld. If more time is required for cooling, the electrode is moved farther forward before returning to the rear of the weld pool. This motion may be used on any type of joint. The electrode should point upward at 20° - 45°. The angle may vary as required.

[BrazilWelds]

Use ever electrode of low hydrogen (E7018) for uphill.

[Kisiel888]

Beautiful Joint;) I have 20 years old and Welding is my hobby but i Weld in technique MMA, MIG/MAG. Soon i would like pass course of Tig Welding, because MMA its easy to learn;)

In my work i have Kemppi MinArc 150 - greas invertor, on this film what's is model Kemppi?

[BrazilWelds]

Thank you very much for your comments, I also weld with MMA, and MIG/MAG process, but my first choice is TIG process. Soon I will shared videos in MMA, and MIG/MAG process. The model Kemppi I used in my video is a MASTERTIG 4003 (only 220V) with panel Tig pulse and "Minilog" control.Greetings to you from BRAZIL.

[kenwaldek]

great welding, thanks for the great tips

[BrazilWelds]

Thank you for watching my video. I hope these tips can help you.