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  1. #1
    Join Date
    Jul 2009
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    Australia
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    Default Praticing aluminium TIG welding

    Praticing TIG welding aluminium today.
    Using
    2.4mm white electrode,
    2.4mm 5356 filler rod,
    100% Argon at 7 litres per minute and
    110 Amps.

    On 3mm thick by 25mm wide aluminium extrusion.

    Jigantor
    Attached Images Attached Images

  2. #2
    Join Date
    Mar 2007
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    Deltaville, VA
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    Default

    100% Argon at 7 Litre's/min?????

    You must own a gas supply company.

    I'd check those flow rates again.
    Syncrowave 250 DX Tigrunner
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  3. #3
    Join Date
    Dec 2007
    Location
    National City CA
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    Default

    Actually it not as much as you think
    1 Liter/min= .0353 CFM
    or 1 CFM =28.32 liters/min
    so at 7 L/m is about .25 CFM no where near enough shielding gas

    So if any thing he needs to increase his flow rate by a lot.
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  4. #4
    Join Date
    Feb 2007
    Location
    Spruce Grove, Alberta,Canada
    Posts
    583

    Default

    Quote Originally Posted by Jigantor View Post
    Praticing TIG welding aluminium today.
    Using
    2.4mm white electrode,
    2.4mm 5356 filler rod,
    100% Argon at 7 litres per minute and
    110 Amps.

    On 3mm thick by 25mm wide aluminium extrusion.

    Jigantor
    You need to clean your material way more and more diligently and you will get better results.

  5. #5
    Join Date
    Mar 2007
    Location
    Deltaville, VA
    Posts
    2,239

    Default

    KC,

    You are correct.

    Not used to seeing flow in ltr/min, more used to CFH.
    Syncrowave 250 DX Tigrunner
    Dynasty 200 DX
    Miller XMT 304 w/714D Feeder & Optima Control
    Miller MM 251 w/Q300 & 30A SG
    Hobart HH187
    Dialarc 250 AC/DC
    Hypertherm PM 600 & 1250
    Wilton 7"x12" bandsaw
    PC Dry Cut Saw, Dewalt Chop Saw
    Milwaukee 8" Metal Cut Saw, Milwaukee Portaband.
    Thermco and Smith (2) Gas Mixers
    More grinders than hands

  6. #6
    Join Date
    Jul 2009
    Location
    hinckley UK
    Posts
    3

    Default

    Hey jigantor youl soon get the hang of it m8 it'l look like this before you know it


    [IMG][/IMG]

    i did these welds with an airowave 400 top bit of kit
    Last edited by full fusion; 07-04-2009 at 01:26 PM.
    syncro 350
    xmt400 & xr feeder
    maxstar 200

  7. #7
    Join Date
    Jul 2009
    Location
    Australia
    Posts
    1,031

    Default

    Hi Fellow TIG welders,
    I do not weld for a living.
    I just purchased a TIG so I could weld aluminium parts for vintage motorcycles.
    I only started praticing my TIG welds about two weeks ago and have had no instructions from anyone. The manual that came with the welder is pus and it is very difficult to find any info on how to for my application.

    I went onto the Miller welding site and discovered their calculator.
    This calculator states that for 3mm thick aluminium corner welds I should use,
    17 cfh or 20 psi
    1 cfm of gas does equal 28.3 litres per minute but the calculator suggests 17 cubic feet per hour. So if we do the sums we get the following result.
    17 x 28.3 = 481 litres per hour
    481 / 60 = 8 litres per minute.
    My local Miller dealer suggested that I use 7 litres per minute and that seems to work fine.

    I tested all these joints and they are very strong. The base metal bends before the weld cracks. That is all I am interested in at this time. I would like my welds to look cool too but that will come over time on the gun (torch).

    Cool looking welds Full Fusion how thick is the material and how wide is your weld base. I am trying to get my corner welds to be only 6mm.

    Jigantor

  8. #8
    Join Date
    Dec 2007
    Location
    Los Angeles
    Posts
    2,840

    Default

    Miller also has the Tig Handbook

    http://www.millerwelds.com/resources/TIGhandbook/
    Ed Conley
    http://www.screamingbroccoli.net/
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  9. #9
    Join Date
    Jul 2009
    Location
    Australia
    Posts
    1,031

    Default

    Hi Broccoli1,
    Thanks mate,
    I will take a look and down load any relavent pages.

    Ji
    Grip it and Rip it

  10. #10
    Join Date
    Jul 2009
    Location
    Australia
    Posts
    1,031

    Default

    I love TIG welding,
    it allows you to do so much.

    The following images are of a Bultaco motorcycle engine head.
    One cooling fin was broken off so we TIG welded it back on.
    After the head was painted black you could not see the repair.

    Ji
    Attached Images Attached Images
    • File Type: jpg A.jpg (24.4 KB, 616 views)
    • File Type: jpg B.jpg (15.0 KB, 552 views)
    • File Type: jpg C.jpg (20.0 KB, 542 views)
    • File Type: jpg D.jpg (12.1 KB, 534 views)
    • File Type: jpg F.jpg (17.6 KB, 543 views)
    Grip it and Rip it

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