AboutEd Kerr Expertise I can answer questions about TIG,MIG and Stick welding, Oxy fuel and Plasma cutting. The affects welding and heat have on certain metals. Materials you can and cannot weld. What to do and not to do on pressure vessel and pipe repairs.
Experience 22 years Aviation and aerospace tooling and equipment fabrication, welding and repair. Aircraft airframe welding and repair. Welding exotic metals and alloys.Marine Aluminum and Stainless steel welding and fabrication. General welding and fabrication.
Education/Credentials H.S diploma
Awards and Honors American Welding Society Welding code certifications
Military Spec welding procedures and qualifications
Expert: Ed Kerr Date: 4/29/2008 Subject: Straight Beads
Question Can you give me any pointers on the best techniques for running really straight stringer passes using 7018 rods in all positions, especially the first pass when you don't have any reference line to go by. Also, what is the best way to tie-in multiple passes to each other, like hardfacing and fill and cap. And any help you can give on making my hot pass fill-in flush wall to wall with no undercut in the horizontal position would be very helpful. Thank you!
Answer Hi, Try using a lighter shade lens in your shield a #10 or #11 should allow you to see the weld seam/joint, but be careful not to use to light of a shade. If your still having trouble seeing , try running a soapstone line where you want to weld. Some welders will go so far as to center punch every 1" or so along the line they want to weld to maintain a straight weld. Avoiding undercut in the horizontal position, weld as cold as you can get away with, which sometimes is not cold at all, move along at a steady pace with a slight pause at the top of the pass if your weaving. If your welding stringers, hold the rod at a compound 45 degree angle, thats angled toward your direction of travel and pointed up like this slash mark / . Just think of it as your putting or placing metal where you want it at the tip of the electrode, maintain a close arc when out of position. Let me know if this helps, Thanks,
Ed
