PPT-Arc welding

Welding Welding processes are conveniently divided into two classes fusion welding and solid state welding During fusion welding a portion of the base materials to be joined is melted and mixed often with the addition of a filler metal forming a solid joint after subsequent solidification . NMTS seeks out the most qualified inspectors with excellent safety records and retains many outstanding inspectors on our permanent staff. We do a thorough background check on all inspectors prior to mobilizing them to a job site. INTRODUCTION. ELECTRIC ARC WELDING. The welding in which the electric arc is produced to give heat for the purpose of joining two . surfaces is . called electric arc welding. Principle. Power supply is given to electrode and the work. A suitable gap is kept between the work . INTRODUCTION.  . Robot Welding . is a process of joining different materials. . The . large bulk of materials that are welded are metals and their alloys although welding is also applied to the joining of other materials such as thermoplastics. Objectives. In this course, we will discuss the following:. OSHA’s minimum requirements for:. Gas welding and cutting. Arc welding and cutting. Fire prevention. Ventilation and protection. Safe use, handling, and precautions to take when welding and cutting. A Brief History of Welding. Late 19. th. Century. Scientists/engineers apply advances in electricity to heat and/or join metals (Le Chatelier, Joule, etc.). Early 20. th. Century. Prior to WWI welding was not trusted as a method to join two metals due to crack issues. A Brief History of Welding. Late 19. th. Century. Scientists/engineers apply advances in electricity to heat and/or join metals (Le Chatelier, Joule, etc.). Early 20. th. Century. Prior to WWI welding was not trusted as a method to join two metals due to crack issues. T-Joint. T-Joint made by Arc welding. T-Joint made by MIG welding. T-Joint oxygen acetylene. Butt Joint. Butt Weld from Arc Welding. Butt welding using. Oxygen . A. cetylene . Butt Welding using . MIG Welding. . 29 CFR 1926 . – . Subpart . J. Presented by. : . ETTA. . Bureau, 919-807-2875. Objectives. In this course, we will discuss the following:. OSHA’s minimum requirements for:. Gas welding and cutting. ran out the Benefaction jelled . water . interactive “shielding envelope” . welding. Leonard M. . Andersen / Wet Welding. POB 1529 / NY, NY 10116 ($1100 per year Caller box at GPO NY, NY) Most Secure Mail Service at Largest Post Office . ran out the Benefaction jelled . water . interactive “shielding envelope” . welding. Leonard M. . Andersen / Wet Welding. POB 1529 / NY, NY 10116 ($. 1240 . per year Caller box at GPO NY, NY) Most Secure Mail Service at Largest Post Office . CO. Identify joining methods for fabrications, and fabricate simple job using joining method.. ©2010 John Wiley & Sons, Inc. M P Groover, . Fundamentals of Modern Manufacturing. 4/e. Welding. Welding is metallurgical fusion process,where part to be joined by the application of heat and pressure.. Know at least 25% of the shop safety terms. Know at least 50% of the shop safety terms. Know at least 75% of the shop safety terms. Know all 100% of the shop safety terms. Review Questions - #1- #10. MALUTI TVET COLLEGE. LECTURER : MJ MOTAUNG. . . TOPIC :5 UNIT :1. . . GAS TUNGSTEN ARC WELDING. LO :. Explain the terminologies associated with gas tungsten arc welding procedure.. Hot work . is any work process that produces flames or sparks that present a fire ignition hazard to the surrounding environment and personnel.. Gas torch welding and cutting. . uses a flame to join or cut metal..