Pictures of a double hook that I welded together

I sorta agree. That center plate should be at least 50%-100% thicker. The welds look very good, though they are limited (according to the pictures) where the upper holes are.

Not sure if he destroyed any heat treat of the hooks, they dont look like they were softened very much by the smallish welds, though Id have done it while the hooks were partially underwater in a pot or tub.

As for never weld lifting accessories...that might be ok for a commercial interprise...for a private party...shrug

Gunner

"First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity.

This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost

Not strong enough tor what?

You think I cannot lift 1,000 lbs with that?

Who cares about heat treat of the hooks. They are 5/16" hooks. I will use this to lift up to 1,000 lbs, it is far below any conceivable breaking limit of this assembly.

And the welds, I am sorry to say, are strong and substantial.

In fact, I bet that I could not break this assembly in a 12 ton press. (not counting the eye on the plate).

I will definitely use this for lifting.

Ignoramus26879 fired this volley in news:PqmdnaURM8K2s0HWnZ2dnUVZ snipped-for-privacy@giganews.com:

Yeah, Iggy, you probably can. But he's still correct.

The choice of rod/wire is critical. The workpiece (at the very least) needs to be re-heat treated to be considered safe. It should also be inspected (x-ray) for voids and inclusions.

But you'd be safe with 1000lb. Either hook alone could do that.

OTOH, why not just link two binder hooks together on a short length of chain to accomplish the same result, without introducing the potential for a weldment-induced failure?

This is your risk; so you evaluate it, and you accept or decline it at your own peril. I assume you're a moral person, and would not expose anyone else to the conditions you've accepted. So ---

It's OK, Ig. Just not good practice.

LLoyd

I used 7018 rod.

Exactly.

It is not exactly the same. I actually have a two binder assembly too.

I just put this hook to test in a 12 ton press. I turned it upside down, supported hooks by vertical plates thet were inside the hooks' openings, and pressed down in the middle between the hooks. While I am not sure what was the force, it was many tons and probably close to

2. The hooks did not detach from the plate and did not even budge.

The amount of weld is so far beyond any conceivable forces that the assembly will ever see, that it is completely safe. The weakest link in this assembly is the eye, not the hooks or the weld.

Ignoramus26879 fired this volley in news:XPadnQCck8zfokHWnZ2dnUVZ snipped-for-privacy@giganews.com:

Sure -- stressing a component to several times its rated load is the way to prove there are no gross defects (assuming you don't _induce_ a future failure ), and a low-hydrogen rod would be the right choice, since you don't know _exactly_ what the hook alloy is.

I don't think anybody here disapproves of your lifting something yourself for your own purposes with whatever you cobble up.

All the guy and I were saying is that it isn't acceptable "life safety practice" to do that sort of thing without metallurgy and inspection methods available.

LLoyd

Sure. I am not about to start selling those hooks to the public, use them on oil platforms, or anything of the sort. This one will be used for getting odd shaped items from my pickup truck, where I want the chain to be of exact length I want and to not slip. I do not lift "overhead" either. I have no lifting equipment that could break this double hook assembly.

What's that Lassie? You say that Ignoramus26879 fell down the old sci.engr.joining.welding mine and will die if we don't mount a rescue by Sat, 01 May 2010 09:48:34 -0500:

Did you consider making the lifting eye a banjo hole?

FYI they do make hooks made for welding to something else.

#What's that Lassie? You say that Ignoramus26879 fell down the old #sci.engr.joining.welding mine and will die if we don't mount a rescue #by Sat, 01 May 2010 09:48:34 -0500: # #>The amount of weld is so far beyond any conceivable forces that the #>assembly will ever see, that it is completely safe. The weakest link in #>this assembly is the eye, not the hooks or the weld. # #Did you consider making the lifting eye a banjo hole? # #FYI they do make hooks made for welding to something else. #

Gunner

"First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity.

This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost

Steve, this is my thinking to the letter. It will work really great loading or unloading a parts washer or a compressor, and this is all that I care about. I do not get under the stuff that I lift.

At trailer stores, you can buy the weld ons that are intended to be welded onto loader buckets. I would have used those, and used a thicker plate.

After reading several comments in this thread, I will say this. It's not according to Hoyle, but it would PROBABLY work on loads that are a lot less than the failure limit.

As a professional rigger and crane operator, I have done some things that were not according to the book, and they worked out all right. And then I have done it right by the book and had a failure.

Just like Gorilla welds, it if holds for the use, it's good. Just don't use it on anything important, don't lift anything really heavy with it, never get under it, and when you do use it, stay clear and remember that flying pieces travel a good distance.

Steve

"Gunner Asch" wrote

Welded three of these on my neighbor's loader bucket.

Steve

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