I want to weld a 3/4" shackle to a 3/4" round rod of cold rolled steel. I
intend to use 7018.

What can I expect in brittleness?

I cold bent the 3/4" rod into a J shape for a hook to skid logs. I used my
bare hands. Nah, I used a cheater bar. Well, actually, a friend and I were
required with an 8' cheater pipe. I was really impressed.

There isn't much of a way to make an attachment point without some welding,
and I know that will affect the properties. I just wonder how much I am
going to lose.

This will be fun to field test in a DT or UUF mode. (Destructive Testing,
and Use Until Failure)

Steve

On 2012-07-02, Steve B wrote:
I want to weld a 3/4" shackle to a 3/4" round rod of cold rolled steel. I
intend to use 7018.

What can I expect in brittleness?

I cold bent the 3/4" rod into a J shape for a hook to skid logs. I used my
bare hands. Nah, I used a cheater bar. Well, actually, a friend and I were
required with an 8' cheater pipe. I was really impressed.

There isn't much of a way to make an attachment point without some welding,
and I know that will affect the properties. I just wonder how much I am
going to lose.

This will be fun to field test in a DT or UUF mode. (Destructive Testing,
and Use Until Failure)

Steve



Will the loads be anywhere close to the working load rating of the
shackle?

If not, I personally would not worry too much.

i

On Mon, 2 Jul 2012 15:22:03 -0700, "Steve B" wrote:

I want to weld a 3/4" shackle to a 3/4" round rod of cold rolled steel. I
intend to use 7018.

What can I expect in brittleness?

I cold bent the 3/4" rod into a J shape for a hook to skid logs. I used my
bare hands. Nah, I used a cheater bar. Well, actually, a friend and I were
required with an 8' cheater pipe. I was really impressed.

There isn't much of a way to make an attachment point without some welding,
and I know that will affect the properties. I just wonder how much I am
going to lose.

This will be fun to field test in a DT or UUF mode. (Destructive Testing,
and Use Until Failure)

Steve

If it is mild steel you should not loose much. The SECRET is to
drill the shackle for a tight fit over the rod and chamfer the end of
the rod and the hole where the rod comes through on both sides,
welding it on the back side - basically a "plug weld" Definitely do
it with a stick welder - much easier to get a good job than using a
wire-feed. The chamfer on the hole where the rod comes through
eliminates a sharp stress rizer, and welding the back, plug style,
keeps the heat affected zone back in the "supported" area instead of
out beyond the exposed weld.

"Steve B" wrote in message
...
I want to weld a 3/4" shackle to a 3/4" round rod of cold rolled
steel. I intend to use 7018.
...
There isn't much of a way to make an attachment point without some
welding, and I know that will affect the properties. I just wonder
how much I am going to lose....

Steve

Now that it's too late to thread it in a lathe,
http://www.plumbersurplus.com/images...422-214425.jpg

jsw

On 2012-07-03, Jim Wilkins wrote:

"Steve B" wrote in message
...
I want to weld a 3/4" shackle to a 3/4" round rod of cold rolled
steel. I intend to use 7018.
...
There isn't much of a way to make an attachment point without some
welding, and I know that will affect the properties. I just wonder
how much I am going to lose....

Steve

Now that it's too late to thread it in a lathe,
http://www.plumbersurplus.com/images...422-214425.jpg

I have a bucket of those for sale

"Ignoramus9096" wrote in message
...
On 2012-07-02, Steve B wrote:
I want to weld a 3/4" shackle to a 3/4" round rod of cold rolled steel.
I
intend to use 7018.

What can I expect in brittleness?

I cold bent the 3/4" rod into a J shape for a hook to skid logs. I used
my
bare hands. Nah, I used a cheater bar. Well, actually, a friend and I
were
required with an 8' cheater pipe. I was really impressed.

There isn't much of a way to make an attachment point without some
welding,
and I know that will affect the properties. I just wonder how much I am
going to lose.

This will be fun to field test in a DT or UUF mode. (Destructive
Testing,
and Use Until Failure)

Steve



Will the loads be anywhere close to the working load rating of the
shackle?

If not, I personally would not worry too much.

i

The shackle is rated for 3.25 tons. The most we will be skidding is between
500 and 1,000#. No lifting, and this will be used only to manipulate the
logs onto the trailer.

Steve

On 2012-07-03, Steve B wrote:

"Ignoramus9096" wrote in message
...
On 2012-07-02, Steve B wrote:
I want to weld a 3/4" shackle to a 3/4" round rod of cold rolled steel.
I
intend to use 7018.

What can I expect in brittleness?

I cold bent the 3/4" rod into a J shape for a hook to skid logs. I used
my
bare hands. Nah, I used a cheater bar. Well, actually, a friend and I
were
required with an 8' cheater pipe. I was really impressed.

There isn't much of a way to make an attachment point without some
welding,
and I know that will affect the properties. I just wonder how much I am
going to lose.

This will be fun to field test in a DT or UUF mode. (Destructive
Testing,
and Use Until Failure)

Steve



Will the loads be anywhere close to the working load rating of the
shackle?

If not, I personally would not worry too much.

i

The shackle is rated for 3.25 tons. The most we will be skidding is between
500 and 1,000#. No lifting, and this will be used only to manipulate the
logs onto the trailer.


Then you will be fine. I would worry about other things, not the
shackle breaking..

Next time, heat the rod to red hot prior to brnding. O/A works great
for this.

i