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Subject: Re: Tig Torch Cup Size Author: SRI [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 19:30:17 10/02/03 Thu In reply to: John 's message, "Tig Torch Cup Size" on 19:33:08 10/01/02 Tue REPLY. THUMB-RULE TALKS OF 2 TO 3 TIMES THE SIZE OF TUNG. ELECTRODE DIA.HOWEVER OTHER FACTORS LIKE GROOVE BUTT JOINT OPENING (60-70 DEG.BEVEL),TUNGSTEN TIP EXTENSION [3 TO 5 mm] REACHABILITY OFR TIP FOR ROOT PASS ALSO GOVERNS THE CUP SIZE.FOR EXP.WE WELDED 10 MM THK ALUMINUM PLATE USING 4 mm SIZE TUNGSTEN WITH 6 mm SIZE CUP 15LPM ARGON GAS FLOW PRODUCED BETTER ROOT PENETRAITON WITH 220/240 AMPS COMPARED TO 12 MM SIZE CUP.REGARDS, SRI. [ Next Thread | Previous Thread | Next Message | Previous Message ]