PPT-Arc welding The fusing of two or more pieces of metal together by using the heat produced

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. 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. . 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. Welding Metallurgy. Study of Welding Metallurgy is important because the overall-mechanical properties of a . weldments . are . determined . by the properties of individual microstructure present in the weld deposit and the weld heat . 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 . Joining and Assembly. Joining . - . welding. , . brazing. , . soldering. , and adhesive bonding. These processes form a permanent joint between parts. Assembly - mechanical methods (usually) of fastening parts together. 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. . Coal or Coke Rivet Forge. heat the steel in the center of the forge – the heat is controlled by the blower. Blacksmithing Anvil, Tongs and Straight . Pein. Hammer . A full blacksmithing shop will have the full complement of tools shown at the left.. 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. Chapter 3 Shielded Metal Arc Equipment, Setup, and Operation OBJECTIVES After completing this chapter, the student should be able to describe the process of shielded metal arc welding (SMAW). list and define the three units used to measure a welding current. Warnings. Welding can be safe when proper measures are taken to protect yourself and others from potential hazards.. . Understand and follow all warning labels found on equipment and with all consumables.. Explosion welding (EXW) is a solid-state welding process in which rapid coalescence of two metallic surfaces is caused by the energy of a detonated explosive. .. It is commonly used to bond two . dissimilar metals. . CONTENTS:. . Introduction. Definitions. Soldering. - Classification of solders. - Classification of fluxes. - Heat source in soldering. - Techniques of soldering.