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 . About Us. Plastic Welding and Fabrication, Ltd (PWF) . started in 2003. . L. ike . most other small . businesses PWF started . working out . of a . garage. We have since moved twice . and currently has two buildings in Buda, TX.. 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. 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 . Covered in Subpart H, but an integral part of welding, cutting and brazing. Compressed gases-hazards. compressed energy. flammable, asphyxiants, oxidizers. Gases are used for cutting, brazing and “shielding” the weld. NCCER Unit 10. Intro . Joint design and setup affect the safety and quality of a completed . weldment. . . All of these are covered by codes and specifications that must be followed. . Special tools for fit up and alignment will be discussed in this unit. . Baylor University. Environmental Health and Safety. Awareness Training Module. Welding, cutting, and brazing. The safety regulations for welding, cutting, and brazing are contained in the Occupational Safety and Health Administration’s (OSHA) 1910 regulation for General Industry in subpart Q @ OSHA.GOV.. 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.. Presented by. : ETTA, OSH Division, (919) 807-2875. Objectives. In this course, we will discuss:. Fire hazards associated with welding. Selection of eye protection for welding operations. Management’s responsibility . CHAPTER 12 Flux Cored Arc Welding Equipment, Setup, and Operation OBJECTIVES After completing this chapter, the student should be able to explain the FCA welding process. describe what equipment is needed for FCA welding. 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.. 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.