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  1. #1
    Join Date
    Jun 2009
    Location
    Las Vegas Nevada
    Posts
    132

    Default Diversion 165 being pushed?

    Just had an interesting thing happen I've never seen. There's a million things this beginner has never seen so I'll offer this one first.

    I'm building an alloy dry sump oil pan. I've seam welded all the .063 sides with some success, nothing to buy my retirement on.

    Today I attempted to weld this .063 sump to the 1/2 inch flange. I suspect it is beyond the capacity of the 165 but I thought I'd give it a try.

    First little 1.5 inch test seemed to work well.

    I brought out some C clamps and a bit of hammer to get it back into line and the second try went to **** immediately!

    The reduced section cup split and fell out leaving just the torch exposed?

    Is this typical and normal degradation or have I done something way wrong??
    Miller Diversion 165
    1966 Bridgeport Mill
    Leblond 15x 35 Regal Servoshift lathe
    Solberga SE 1425 Drill Press
    Bigass Bandsaw
    Hydraulic press
    small surface grinder
    Belt sander
    Tons of grinders and hand tools
    Knife edge Balancing rollers
    Heat and AC in the garage

    Jags and racing Triumphs

  2. #2
    Join Date
    Jun 2009
    Location
    Las Vegas Nevada
    Posts
    132

    Default

    Well that ramble didn't make much sense did it?

    I was startled by the cup splitting apart at the transition at the large diameter.

    Do these things fail, an expendable piece? Like tungstens and filler rods should I be looking to replace cups on a regular basis? Or did I overheat, undergas something to cause this failure?
    Miller Diversion 165
    1966 Bridgeport Mill
    Leblond 15x 35 Regal Servoshift lathe
    Solberga SE 1425 Drill Press
    Bigass Bandsaw
    Hydraulic press
    small surface grinder
    Belt sander
    Tons of grinders and hand tools
    Knife edge Balancing rollers
    Heat and AC in the garage

    Jags and racing Triumphs

  3. #3

    Default Diversion 165 being pushed?

    I have had an experience similar with lava cups at higher temps if you don't have the tungsten out far enough. It's also possible the cup was already cracked and the heat from welding caused it to split.

  4. #4
    Join Date
    Jul 2010
    Posts
    378

    Default

    FWIW, you can get gas cups (like most other things) cheaply on ebay.

  5. #5
    Join Date
    Sep 2005
    Location
    northern NJ
    Posts
    1,868

    Default

    Although not super common I have had pcs. of cups break away especially when using torches at max or beyond. Yes you are pushing the 165 & it's torch. Just get some spares & try to watch the duty cycle. Your torch if used like this will die prematurely but you do what you gotta do.

    I used a Lincoln tig 175 for a long time & welded stuff like you are doing. Went through a few torches but until I could upgrade it's what I had.
    MM250
    Trailblazer 250g
    22a feeder
    Lincoln ac/dc 225
    Victor O/A
    MM200 black face
    Whitney 30 ton hydraulic punch
    Lown 1/8x 36" power roller
    Arco roto-phase model M
    Vectrax 7x12 band saw
    Miller spectrum 875
    30a spoolgun w/wc-24
    Syncrowave 250
    RCCS-14

  6. #6
    Join Date
    Jun 2009
    Location
    Las Vegas Nevada
    Posts
    132

    Default

    Watch the duty cycle is good advice! I notice the cooling fans running considerably longer now.

    I'm using a 500 Watt halogen lamp to preheat the area. Not sure how helpful it is but it helps cook my gloves a lot sooner! OUCH!

    I bought the Diversion specifically for this fabrication. Learning it is going slowly but it's going....

    I gotta go back to the books, I don't think my tungsten is out far enough.
    Miller Diversion 165
    1966 Bridgeport Mill
    Leblond 15x 35 Regal Servoshift lathe
    Solberga SE 1425 Drill Press
    Bigass Bandsaw
    Hydraulic press
    small surface grinder
    Belt sander
    Tons of grinders and hand tools
    Knife edge Balancing rollers
    Heat and AC in the garage

    Jags and racing Triumphs

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