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Welding aluminum without overheating paint

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  • Olivero
    replied
    Interesting, makes sense as someone has to figure out how to code the software to figure it out for us. Guys like you are always good to have around

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  • OscarJr
    replied
    Originally posted by Olivero View Post
    Does that ever really, like really, come in handy or is it just a skill you acquired because you could or you had a knack for it or you were interested in knowing how to calculate the BTU input that's being put into the metal or what? I get curious over these, things. Some people are just masterminds, others, like me, are not
    It doesn't come in handy simply because there are many computer-aided software packages that can do this as a real-time simulation, and they can do it orders of magnitude faster than any person could. I learned to calculate stuff like that simply because it was part of class called Partial Differential Equations. Even then, they are very simplistic and truly useful softwares account for many real-life variables that book-equations over-look. So I guess you could say it is useful: to the engineers/physicists who develop and must continually refine the mathematical models employed by such softwares. Same goes for things like stress/mechanical/electromagnetic FEA softwares. They are always evolving, but not on their own. The programming is always being updated to reflect better, more accurate mathematical models that mirror reality a little bit closer and closer each time.

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  • Olivero
    replied
    Does that ever really, like really, come in handy or is it just a skill you acquired because you could or you had a knack for it or you were interested in knowing how to calculate the BTU input that's being put into the metal or what? I get curious over these, things. Some people are just masterminds, others, like me, are not

    Leave a comment:


  • OscarJr
    replied
    Originally posted by Olivero View Post
    Well, looks Arabic to me. Perhaps, Egyptian?

    Stay in school, kids....stay in school

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  • Olivero
    replied
    Well, looks Arabic to me. Perhaps, Egyptian?

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  • OscarJr
    replied
    Originally posted by OscarJr View Post

    Oops, forgot to change the share settings for the PDF. It should now be accessible to anyone with the link.
    Here's another PDF: Heat Conduction in 2D and 3D

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  • OscarJr
    replied
    Originally posted by Olivero View Post

    Sounds really interesting, I would like to try doing that equation just for ****s and giggles but the link does not work.
    Oops, forgot to change the share settings for the PDF. It should now be accessible to anyone with the link.

    Leave a comment:


  • ryanjones2150
    replied
    About the only thing a short cut in the shop gets you is a quick trip to the ER.

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  • Olivero
    replied
    Appreciate the applaude. and Ryan, Gotta agree with you, every time you "don't need it" you need it. Just like tools to do a job, its what you think you dont need, you end up needing.

    Interesting how that all works.

    I got an old fart fella around who told me all kinds of stories so I know what I am in store for if I am not carefull. Definetley made my own mistakes and learned from them but when it comes to big machinery, even chop saws, band saws, table saws, angle grinders. I learned to be carefull, a cutting wheel once exploded when I was cutting pipe, shot into my leg, about 6" from my happy place and piece of it ended up in my finger, split my nail. After that, I wear my nice, heavy duty MIG STICK gloves from Miller, long sleeves and all.

    Just not worth it in the long run, I write this with a sunburn on my upper arms from welding without sleeves.... I guess I can't be all good. haha

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  • Stefen7
    replied
    Originally posted by ryanjones2150 View Post
    ...respect stuff that can hurt you quick.
    Yes, but also respect the stuff that will hurt you over the long term.

    The jokes about artillery soldiers and hearing damage are true. In 1990 I joined the army, and my ears have been ringing non-stop since the howitzer fired the first time. 26 years of lying in bed every night trying to fall asleep, with a sound like a shop-vac running in the next room. It takes a toll on your health.

    We were never issued ear protection (although the officers 100 ft away were). I now have several pairs of good ear-muffs that I, and everyone around me, wear when there is the possibility of hearing damage.


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  • Metjunkie
    replied
    Olivero, I applaud you. For a young fella, you sound like you really have your head in the game. I'm rapidly reaching old fart status and I certainly have made my bloody mistakes along the way. Sadly, I've worked with a number of young bucks who've found out the hard way what happens when you don't pay attention. Lost fingers, nerve damage, one guy lost his arm up to his shoulder. When I work in my garage/shop, I have ear plugs, safety glasses, shields, gloves on at all times. Years ago, I poo pooed the notion of wearing all that stuff. I like to think that now I know better. Plus, my body doesn't heal as fast as it used to.

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  • ryanjones2150
    replied
    Every time I hurt myself in the shop it's from doing something I know I shouldn't have done. I'll admit, I lost respect for the simple drill press a year or so ago and got 9 stitches out of it. That will never happen again. So yes, Olivero, you're absolutely right...respect stuff that can hurt you quick. Like Heiti said, stay focused.

    Leave a comment:


  • Olivero
    replied
    True, equipment is extremely dangeruous, best thing to do is get to know the machine, get a feel for it and respect it, know that much like a T-Rex, it can rip you apart faster than you can imagine.

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  • Aeronca41
    replied
    +1.....we have to avoid the preventable accidents to allow room in the odds for the unpreventable ones. I had a 16d nail out of a nail gun go straight down into the bottom plate of a stud wall, hit a knot that was invisible from the top, turned inside the wood and came out, flew 15' across the building, and hit my friend about an inch above the eye. I have put in tens of thousands of nails with nail guns, and never saw anything remotely close to that. No serious damage other than a cut, by the grace of God. 1" lower would have been a very different story.

    Looking at some of those lathe videos with people in long sleeves....accident waiting to happen. Like PTO shafts on farm equipment. I know a kid that's missing an arm...

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  • H80N
    replied
    Originally posted by ryanjones2150 View Post
    I've seen the first video. That kid gets lucky. <br />
    <br />
    Heiti, you say "think"....what section of the online user's manual is that in? <br />
    <br />
    Operator headspace and timing is the cause of far too many injuries.
    PLUS...

    IF.... you have "Brain Fade".............around equipment........ more likely...that you might "Bleed & Break.........

    PLS... Stay Focused...
    Last edited by H80N; 11-02-2016, 08:34 AM.

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