The challange is to seam weld a stack of sheets, .010" 347 SS, that have a lap joint which is currently plasma and TIG welded. Material offsets make plasma welding difficult to automate. The sheets are .300" apart when stacked. Can rolls small enough be made to fit in between the individual sheets so that a gas tight weld can be made of the entrie stack? The weld takes place on the inside diameter of a hole 5" in diameter. The task is to stack the sheets and weld the seams one at a time working up the stack while inside this hole. How fast (in/min) can this type of welding be run on this material? What would be the clamp pressure and current / voltage required?

-- Victor W. Scipioni (vscipioni@allianceauto.com), May 10, 2001

Answers

It does not sound feasible, from a production/maintenance stand- point, based on your initial description of the 347 .010” thick SS stack-up joint inside a 5” diameter. If you would like us to take an in-depth review of your project, please respond to our questionnaire at our web-site TJS_NM_RFQ_checklist.doc.

Without further details responses to speed and weld parameters are not of any value.

Bob Balla T. J. Snow Company, Inc. 6207 Jim Snow Way Chattanooga, TN 37421

Phone: 423-894-6234 423-308-3161 (direct line) Fax: 423-892-3889 e-mail: bobballa@tjsnow.com

-- Bob Balla (bobballa@tjsnow.com), May 14, 2001.

Have you considered looking into a "Tubemill" welder. This welder is used to weld pipe.

-- Dave Shorkey (dshorke@hotmail.com), January 18, 2002.