PPT-Chapter 22 Welding Joint Design and Welding Symbols

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. 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 . 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 welded using arc welding. T-joint welded using . tig. T-joint welded using . mig. Lap joint. Lap joint welded using . tig. Lap joint welded using arc welding. Lap joint welded using . 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. 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. ASTE 3030. Objectives. Define working drawing, print, orthographic projection, and mechanical drawing. Create a working drawing of your project. Differentiate and use different types of lines used on a drawing. Level 1 Chapter 10. Objective. When we have completed this chapter, you will be able to:. Identify and explain job code specifications. Use fit-up gauges and measuring devices. Identify and explain distortion. 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 . 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.. Chapter 2 Safety in Welding OBJECTIVES After completing this chapter, the student should be able to Discuss types of injuries that can occur and how to prevent them Describe personal protective equipment (PPE) used by welders 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.. Its objective is to provide technical background and information for bolting and welding. The information provided is based on common design and construction practices for structures of twelve stories or less.. . CONTENTS:. . Introduction. Definitions. Soldering. - Classification of solders. - Classification of fluxes. - Heat source in soldering. - Techniques of soldering.