PDF-Sensing controlled pulse key-holing condition in plasma arc welding J

Abstract According to the strategy of controlled pulse keyholing a new sensing and control system was developed for monitoring and controlling the keyhole condition during plasma arc welding PAW. s.r.o. . is a manufacturing company focusing on deliveries for power-,. transportation- and construction engineering businesses. The company management . consists of people with . 15 . years of experience in the field of machinery manufacturing.. History of Welding. Welding was used in the construction of the iron pillar in Delhi India, erected about 310 AD and weighing 5.4 metric tons. . History of welding. Welding, was transformed during the 19th century. In 1802, Russian scientist Vasily Petrov discovered the electric arc and subsequently proposed its possible practical applications, including welding.. 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. Definitions. Weld. A localized fusion of metals produced by heating to suitable temperatures. . Pressure and/or filler metal may or may not be used. . The filler material has a melting point . approximately . Presentation by:. N.SHASHANK REDDY-BT14EEE058. NAITIK ATUL SHAH-BT14EEE059. N.HARSHITHA-BT14EEE060. N.HARSHA VARDHAN REDDY-BT14EEE061. NIKITA BHAWARE-BT14EEE062. WELDING. . It is the process of joining two pieces of metal at . 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. Flexible Manufacturing. Copyright © Texas Education Agency, 2013. All rights reserved.. 1. Sheet Metal. There are many types of sheet metals manufactured for various applications. . The sheet metal may be developed to bend, stretch, or to resist corrosion. . 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. GMAW Welder. A constant voltage power supply with a wire electrode feed. May be used with solid or flux core wire. Commonly used with a shielding gas (required for solid wire electrode). Common shielding gasses are carbon dioxcide and argon.. AKA “Arc Welding. Officially known as: SMAW – “Shielded Metal Arc Welding . “Stick Welding”, AKA “Arc Welding. Officially known as: SMAW – “Shielded Metal Arc Welding . “Stick Welding”, AKA “Arc Welding. 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. OBJECTIVES. After completing this chapter, the student should be able to. understand the basics of joint design.. list the five major types of joints.. list seven types of weld grooves.. identify the major parts of a welding symbol.. How an arc is formed. The arc is like a flame of intense heat that is generated as the electrical current passes through a highly resistant air gap.. Arc welding process. Tungsten Inert Gas welding. Welding torch.