[PSUBS-MAILIST] welding

[hank pronk via Personal_Submersibles]

Brian,I agree, that was a bad idea, I think now I should weld it up first for the ports, the hatch opening should be fine.  They are two hemispheres, 1 inch thick.   If these don't fit perfectly, I will just give a push with my porta power and brace.  I am planning substantial bracing before I weld anyways.  Hank
 


    On Sunday, November 29, 2015 7:59 AM, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
 

 Hi Hank,    I would definitely have substantial weld on there before cutting the holes,  Are these two hemispheres?   What is thickness?   What will you do about the heads if they do not line up together exactly? Brian Cox

--- personal_submersibles at psubs.org wrote:

From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: [PSUBS-MAILIST] welding
Date: Sun, 29 Nov 2015 13:46:15 +0000 (UTC)

Hi all,My new sphere heads are done and on the way, they measured maximum 1\8 in out of round measured against a 120 degree template.   I am planning to tack the heads together  securely then cut the three port holes and hatch hole.  I want to cut out the port holes witch  have the circumference weld running through them before welding the heads together.  I want the pieces from the port holes for test material.  I want to weld them together to prove weld procedure and quality with coupon testing and I plan to stretch the coupons to breaking point also.   I am not sure if I should cut all these holes before the heads are welded, it may cause the heads to distort.  Maybe I should test with a 1 inch piece left over from the pod project.  Hmmm thoughts anyone?Hank _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
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