[PSUBS-MAILIST] Distortion when cutting in shell

[André Eriksen via Personal_Submersibles]

Hank,

Thank you for your comment. I will put in two rings before cutting to be
safe. Will also reinforce the conning tower before cutting.

Thanks!

Regards
André

2015-05-10 23:05 GMT+02:00 hank pronk via Personal_Submersibles <
personal_submersibles at psubs.org>:

>
> Andre,
> When you cut the holes in your ct for the ports, the ct will go out of
> shape big time.  Tack weld the  bottom of the ct to a strong plate before
> you cut the holes and weld the port rings in, then you can remove the plate.
> Hank--------------------------------------------
> On Sun, 5/10/15, André Eriksen via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>  Subject: Re: [PSUBS-MAILIST] Distortion when cutting in shell
>  To: "Personal Submersibles General Discussion" <
> personal_submersibles at psubs.org>
>  Received: Sunday, May 10, 2015, 2:40 PM
>
>  I`m
>  using plasma.
>  Was
>  thinking if there were any stress in the shell after the
>  rolling, it would tend to distort due to weakening after
>  cutting out the hole.
>  RegardsAndré
>  2015-05-10 16:50 GMT+02:00
>  Emile van Essen via Personal_Submersibles <
> personal_submersibles at psubs.org>:
>
>
>
>
>
>  Hi André
>
>  Not such a issue wit a plasma cutter.
>
>  The full penetration welds will cause
>  more
>  distortion.
>  Temporery reinforfment
>  okay.
>
>  Emile
>
>
>
>  Van:
>  Personal_Submersibles
>  [mailto:personal_submersibles-bounces at psubs.org]
>  Namens André Eriksen via
>  Personal_Submersibles
>  Verzonden:
>  vrijdag 8 mei 2015
>  23:10
>  Aan: Personal Submersibles
>  General
>  Discussion
>  Onderwerp: [PSUBS-MAILIST]
>  Distortion when cutting in
>  shell
>
>
>
>  Hi all,
>
>
>  When you cut out the hole for the conningtower, is
>  distortion of the shell
>  an issue?
>
>
>  My shell is 12mm in thickness. Wondering if I should
>  place a reinforcement
>  ring on either side of the hole to be cut -Not welding them
>  so I can remove them
>  after I have tacked the tower in place.
>
>
>
>
>  Thanks
>  André
>
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>
>
>
>  --
>  Med
>  Vennlig Hilsen / RegardsAndré
>  Eriksen
>
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-- 
Med Vennlig Hilsen / Regards
*André Eriksen*
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