Inquiry (采购产品): Technical input plus Quote We would like to weld a pipe of 4 inch Nominal with thickness 0.055". The ovality observed is around 0.012". The material is Nickel Base alloy similar to AMS5536. We propose to have a straight butt weld with a max. gap of 0.03 inch. The filler material as per requirement is AMS5798. Quality Requirement: 100% penetration and smooth weld. No possibility of internal weld cleanup for excess penetration. Our Proposal: We propose to use Manual TIG welding process using pulsed TIG welding machine (Miller Syncrowave 350) with weld insert as per your recommended shape & size.The job can be rotated using Jig and welding can be done in 1G position. Technical calrrification Sought. 1) What is the best profile you recommend? 2) Will the insert is sufficient to provide the needed metal or additional filler wire is required during welding? 3) What are the weld parameters such as Tungston rod dia., cup size, current & voltage parameters, shielding gas (currently we use argon only), back shielding requirement if any etc. With your clarrification, we need a quote for the insert sufficient enough to weld atleast 100 such joints. What will be the delivery. Considering the ovality, we presume that staright length of insert may be preferable. Please suggest your best option with Quote. I would appreciate your quick response. Regards GA.Bharathi Note: We are in the after market service of land based Gas Turbines. We are a JV of GE USA. **** Hidden Message ***** Bharathi GA 203-204 Ashoka Bhoopal Chambers 146A Sardar Patel Road Secunderabad-AP500003 IND Company: BHEL-GE Gas Turbine Services Limited Title: General Manager Phone: 0091-8418-255837 Fax: 0091-8418-255370 E-mail: ga.bharathi@geind.ge.com **** Hidden Message ***** ga.bharathi@geind.ge.com
