1. By: Joshua Cousins & Matthew Iwaskiw Date: November 26, 2012 Teacher: Mr. Whiteman Homeroom:119 TMY4C1

2.  Plasma arc welding (PAW) is an arc welding process similar to gas tungsten arc welding (GTAW).  The electric arc is formed between an electrode(which is usually but not always made of sintered tungsten) and the work piece.

3.  When used for cutting, the plasma gas flow is increased so that the deeply penetrating plasma jet cuts through the material and molten material is removed as cutting dross.  A plasma is a gas which is heated to an extremely high temperature and ionized so that it becomes electrically conductive. Similar to GTAW (Tig), the plasma arc welding process uses this plasma to transfer an electric arc to a work piece. The metal to be welded is melted by the intense heat of the arc and fuses together.

4. Plasma Arc welding was brought into the welding industry's in 1964. It was meant for better control.

5. Gloves Safety Goggles Leather Jacket w e l d i n g Mask

7.  http://go.galegroup.com/ps/start.do?userGroupName=ko_pl_portal&prodId=G PS&DB=SPN.SP22_AONE_CPI_DC_GVRL- 0_GRGM_CDB_ITOF_STOJ_LT_STOM_SRCA_HRCA_GBFM_PROF_PPCM_PPCJ _PPES_PPGL_PPTH_PPPC_PPCA&password=trillium&authCount=1&u=ko_pl_p ortal http://go.galegroup.com/ps/start.do?userGroupName=ko_pl_portal&prodId=G PS&DB=SPN.SP22_AONE_CPI_DC_GVRL- 0_GRGM_CDB_ITOF_STOJ_LT_STOM_SRCA_HRCA_GBFM_PROF_PPCM_PPCJ _PPES_PPGL_PPTH_PPPC_PPCA&password=trillium&authCount=1&u=ko_pl_p ortal  http://en.wikipedia.org/wiki/Plasma_arc_welding http://en.wikipedia.org/wiki/Plasma_arc_welding  http://www.pro-fusiononline.com/welding/plasma.htm http://www.pro-fusiononline.com/welding/plasma.htm  http://www.millerwelds.com/ http://www.millerwelds.com/  http://www.millerwelds.com/pdf/SAMPLE_250836_Topic10.pd f

8.  This presentation and PowerPoint was made by Matt Iwaskiw, and Joshua Cousins