A novel welding process called Dual Bypass GMAW has been developed by adding two bypass electrodes to traditional GMAW such that most of the melting current can flow through bypass electrodes and the base metal current which heats the base metal can thus be very small. Experiments have been performed to find the conditions which can assure that a stable Dual Bypass GMAW process be established and maintained. It was found that the desired spray transfer and quality welds can be achieved with a very small base metal current. As a result, the process can be used to produce a high deposition rate while the base metal heat input be controlled at a very small level. The next step is to develop a procedure so that aluminum rings may be brazed at Los Alamos National Laboratory (LANL) with this ultra-low base metal heat input process.
|Title of host publication||Transactions of the North American Manufacturing Research Institution of SME 2007 - Papers Presented at NAMRC 35|
|Number of pages||7|
|State||Published - 2007|
|Event||35th North American Manufacturing Research Conference, NAMRC 35 - Ann Arbor, MI, United States|
Duration: May 22 2007 → May 25 2007
|Name||Transactions of the North American Manufacturing Research Institution of SME|
|Conference||35th North American Manufacturing Research Conference, NAMRC 35|
|City||Ann Arbor, MI|
|Period||5/22/07 → 5/25/07|
Bibliographical noteFunding Information:
This paper is outcome of a research project funded by a Leverhulme Trust on ‘The Moral Geographies of the South Wales Coalfield’. I am indebted to Pyrs Gruffudd, Steve Daniels, David Matless, Charles Watkins and the anonymous referees for comments and criticism.
- Heat input
ASJC Scopus subject areas
- Mechanical Engineering
- Industrial and Manufacturing Engineering