[PSUBS-MAILIST] bend test

[Daniel Lance via Personal_Submersibles]

That raised section is probably the difference between the density of the
weld metal and the parent metal . The parent metal is more dense because of
all the different processes it goes through when it is being manufactured .
When it's molten It's poured into an ingot and then it goes through rolling
mills to configure it into a plate . It goes through a lot of compression
cycles . Obviously the weld deposition doesn't .

On Sep 22, 2017 8:03 PM, "hank pronk via Personal_Submersibles" <
personal_submersibles at psubs.org> wrote:

> Hi All,
> I tried sending pictures of my bend test from my Elementary 3000 sample.
> I was rather confused and thought I may have not bent it sideways but in
> fact I was right the first time and it is bent sideways.  I cut my sample
> into a square so it will clamp into a band saw.  I took a piece off the
> side and cut it 3\4 inches wide, so the sample is 2\4 by 1 inch thick.  I
> bent it over a 1.5 inch mandrel and there is no cracking at all.  There is
> a wierd thing though,  before the bend you could not see where the weld was
> but after the bend you could see a slightly raised area where the weld met
> the parent metal.  I filed that tine bump smooth and there is no cracking
> or anything.  Wierd.
> Hank
> I will send a picture separately
> Hank
>
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