PPT-Welding

Duties Welders join or sever metals in beams girders vessels piping and other metal components make metal parts used in construction and manufacturing plants and weld parts tools machines and equipment. Established in 1993, NMTS is dedicated to serving every aspect of your contract quality inspection needs through experience and integrity. We help contractors around the nation fill much-needed temporary positions for certified welding inspectors. 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. . 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. Stanley High school shop. Safety Hazards in the Welding Shop include:. . - Flames, sparks, slag, harmful rays, fumes, and fire hazards. . - Always wear proper PPE in order to minimize risk . . of being affected by these hazards. . 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 . Tig and Mig welding. By: Luke Woroniecki. Table of Contents. Welding Certification and Qualification. Codes. Safety. Cutting Processes. Welding Processes. Weld Joint Geometry and Welding Symbols. Welding Metallurgy. nature OF WORK. - Welders. , cutters, . solderers. , and . brazers. held about 337,300 jobs in . 2010. -Welders will either work outdoors or in a confined space to contain sparks.. - They wear safety shoes, goggles, masks with protective lenses, and other equipment to protect from burns and falling objects. . 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. 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. Welding Consumables Market study is a complete report which studies the future outlook of the market. It includes the regional analysis, competitors study along with the market segmentation by type and structure. View More @ https://www.valuemarketresearch.com/report/welding-consumables-market Hot Work. . . . Bureau of Workers’ Comp. PA Training for Health & Safety. (PATHS). OSHA 29CFR1910.251-255 . 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..