Can Mig Welds be Planished? Surprising Results!

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  • @ericpetz5831
    @ericpetz5831 Рік тому +3

    Jeff Lily restorations had a 2 part article on this about 15 or so years ago in Cars and Parts Magazine.. He spliced new reproduction rear 1/4 panels for a 69 camaro coupe, on a 69 camaro convertible pace car. Because at the time repop convertible 1/4s didn't exist. He welded them on with a mig welder probably using .023 wire, let it cool naturally, knocked the head off the weld.. And then heated the weld bead up with a torch to a dull cherry red. Removed the 1/4 panels in their entirety, metal finished them, and welded them back on the car.

  • @ericpetz5831
    @ericpetz5831 Рік тому +2

    When I worked in metal fab at my last job, our tool of choice was a 90° degree die grinder, with small 80 grit roloc disk flap wheels Definitely a lot easier to maneuver and control then those cordless or corded grinders, and nowhere near as tiring to use. They were the cats ass for knocking the corner welds off of the stainless steel benchtop scale covers we made. Then we took them to a large dual belt stroke sander, with a rotating vacuum table to finish them off. And yes they looked sweet when they were finished.

  • @anthonykinrade8642
    @anthonykinrade8642 Рік тому +5

    That silver line grinder sounds like a bag of nails.. 😊

  • @robinstewart4729
    @robinstewart4729 Рік тому +1

    good video dave

  • @ericpetz5831
    @ericpetz5831 Рік тому +1

    I will more then likely be doing this same thing, when I start working on my 60 Ford pickup, hopefully sometime in the near future. It will be alot of extra work, but worth it.

  • @SkaterStimm
    @SkaterStimm 10 місяців тому +1

    My guess is that the weld bead on the back is keeping it strong.

  • @nickjones6127
    @nickjones6127 Рік тому +3

    Carter Auto styling has a very useful video on speeding up the mig process by grinding immediately after each weld which helps the weld to cool down more slowly and so avoiding much distortion. Check it out.

    • @DavesGarageuk
      @DavesGarageuk  Рік тому +1

      I've recently seen that and keen to give that a try too, thanks 😊

  • @gilesfrench1757
    @gilesfrench1757 Рік тому +2

    I think Silverline may regret sending you those tools which seem to be good for just occasional light use..😂 Appreciate the honest reviews and hopefully it may lead to some product improvements. Keep up the great content 👍

  • @halsoriye135
    @halsoriye135 Рік тому +2

    For "Cut and Butt", I switched to .030"/1/32" slitting discs, available on Amazon. Less of a gap and easier to weld..

  • @paddlerpaul2577
    @paddlerpaul2577 Рік тому +1

    I have just found your channel. Thanks for the advice I found that very interesting and useful. Thank you for your video's. Paul👍

    • @DavesGarageuk
      @DavesGarageuk  Рік тому

      Thank you Paul, hope you enjoy the other videos 😊

  • @peterbutcher562
    @peterbutcher562 Рік тому

    I have often thought about this but never got around to actually doing it. So thank you for jogging my brain and interest in this. After your video i went back out to my shed and tried playing again.
    May years ago i had an old stick welder which had a brazing setting on it, that i used to use for small body patch repairs. In place of the welding rod it used a single copper coated carbon rod. Which you could with careful use get very local heat generation. I did the experiment just as you did but then ran down the weld carefully with the old welder keeping the heat zone as small as possible i then after the weld had cooled tried planishing and whilst it was more time consuming it also seems to work worked. Enjoy the videos keep them coming.

    • @DavesGarageuk
      @DavesGarageuk  Рік тому

      Hi Peter, very interesting, I never could get the hang of stick welding, good to know that it also works in a similar way.

  • @gsxr713
    @gsxr713 Рік тому +1

    Once again great information sometimes when putting couple spots and gap closes up grind tops and plannish opens gap back up for nice penetration great skills love the videos

    • @DavesGarageuk
      @DavesGarageuk  Рік тому +1

      I've seen a fella, Carter restoration, I think his channel is called, he welds 3 spots, then grinds straight away, I may try that on the other bubble arch, seems to work well.

  • @sammyadeadventures
    @sammyadeadventures Рік тому +1

    I learnt a lot from this session 😁

  • @sidsxr3irestoration
    @sidsxr3irestoration Рік тому +1

    Great video a good test 👍 I always used a rag and water to cool down the weld. Then i found it would be harder! soon as hammered the metal would split so I let it cool down naturally now

    • @DavesGarageuk
      @DavesGarageuk  Рік тому +1

      Thank you Sid, I'm glad my learning is helping others, there's a fella in Canadia, Carters Auto Restyling, that has an interesting way, he spots 3 welds in a row then immediately grinds them while still hot, he says it slows down the cooling and keeps the weld softer. I may try that out.

    • @sidsxr3irestoration
      @sidsxr3irestoration Рік тому +1

      @@DavesGarageuk have to look at that one Dave are you using 0.8 or 0.6 wire? I changed to 0.6 wire found welding is better. mig welder is on lower heat setting Great weld and metal not like a Mexican wave

    • @DavesGarageuk
      @DavesGarageuk  Рік тому

      @@sidsxr3irestoration 0.6mm mate, for the same reason

  • @bigsquatchsasfoot1964
    @bigsquatchsasfoot1964 Рік тому +1

    Another masterclass thanks Dave , I’m always learning something from your channel I appreciate your efforts in educating us mate thanks 👍

  • @jamesconnors4297
    @jamesconnors4297 Рік тому +1

    Planished ? Crikey i had to google that :) and oh dear Silverline :)

  • @anthonykinrade8642
    @anthonykinrade8642 Рік тому +2

    I would n't hit that silverline vice too much! It will probably break..

  • @peterbutcher562
    @peterbutcher562 Рік тому

    Dave i may have mislead you a bit. In my experiment i used the carbon rod to just heat up the welds on a piece of sheet steel that i had previously mig welded. Like you i struggle with stick welding. And this old stick welder / brazing set has lived under my bench for 30 odd years. I have a tig welder but have never put in the practice, im ok on the bench, but folded up inside a car im pretty useless..

  • @clivelambourne8377
    @clivelambourne8377 Рік тому +1

    Hi Dave good to. See progress. Just a question actually how much. Gas do. You get through. You use small. Or large. Bottles Clive

    • @DavesGarageuk
      @DavesGarageuk  Рік тому

      Hi Clive, I use the large brewery CO2 bottle, lasts just less than 1 year at the current rate of welding. Considerably cheaper than the little bottles that don't last very long at all.

  • @jamespaterson5041
    @jamespaterson5041 Рік тому +1

    Hey ,
    When you are taking the top of the welds off a facing panel , what are you using to smooth them down ?
    A flapping disc or the special discs with Emery tape on them/sandpaper.
    I'm having trouble when grinding down my welds , it's taking them too far back and pin holes appear. I'm.wondering if I'm using the wrong tool .
    Your help appreciated.

    • @DavesGarageuk
      @DavesGarageuk  Рік тому +1

      Hi James, I tend to use a grinding stone to take the tops of the weld off, flappy discs heat up the panel too much. Then I'll use something like 80 grit to finish them off, don't be too concerned with getting the welds to look perfect, put a straight edge between the panel, often it's sunk in a touch due to the shrinkage, it'll need filler over it anyways. Well mine always does.... 😊

  • @jamesconnors4297
    @jamesconnors4297 Рік тому +1

    did you try a metal file as well ?

  • @gavfreeman8797
    @gavfreeman8797 Рік тому +1

    Milwaukee grinders are the best

  • @jamesward5721
    @jamesward5721 Рік тому

    I do bore on - I'm fully aware of that - however I do what I bore on about all day every day as my "Living" so I feel I get to bore on a bit.
    I'd love to show people 2 weld runs - 2 very typical "Bodywork" weld runs - the first would be with 0.6mm solid wire & shielding gas. If you run anything bigger than 0.6mm wire in your Mig, for bodywork, you're mugging yourself. You always want the wire to be slimmer than the panel. More slimmer is more better. 0.9mm is too heavy. 1mm is for girders. 0.8 is no better than 0.9. Buy 0.6mm.
    Anyway - panel welds, 2 runs.
    First is with solid wire & gas - do what you like, go as slow as you like, cool the spot welds as much as you like, it will be distortion central. The weld area will "dive" low, the panel will oil-can like mad & you will vow to save up & buy a Tig welder. There will be ALL the distortion, I care not "How Good!" of a welder you reckon you are - it will distort like mad. Reasons. HAZ etc etc.
    Second is with flux-core. 0.6mm, decent brand wire - running through a machine you picked because it goes exceptionally low - forget "High" - High is for people who weld girders & stuff. Bodywork demands "Low". More lower is more better. Harder to find than you think. The flux-core bead you laid on 1 tack right onto the last - no regard was paid to "cooling" the welds or panel, you didn't back-step or any other fancy technique - and I guarantee there will be ZERO panel warp. None. You can flux-core weld right across a quarter panel & nothing will dive, there won't be any distortion & it will grind down flush about 80% faster than solid wire.
    Tell me again why you use gas shielded Mig? I am all ears - you must love torture, literally. Why does anyone consciously go out to buy a more expensive process, using more expensive equipment, with expensive gas, that produces absolutely crap results in comparison? Baffles me.

  • @gavfreeman8797
    @gavfreeman8797 Рік тому +1

    Did you them gloves from screw fix £4

    • @DavesGarageuk
      @DavesGarageuk  Рік тому +1

      Freebies from Silverline Tools 😊

    • @gavfreeman8797
      @gavfreeman8797 Рік тому +1

      @@DavesGarageuk nice m8 love watching your vids m8 keep up the good work