PPT-T opic : welding

Presentation by NSHASHANK REDDYBT14EEE058 NAITIK ATUL SHAHBT14EEE059 NHARSHITHABT14EEE060 NHARSHA VARDHAN REDDYBT14EEE061 NIKITA BHAWAREBT14EEE062 WELDING It is the process of joining two pieces of metal at . 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. . 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.. 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.. 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 . Background. Thermosetting and thermoplastic polymers are two kinds . of matrix . for . fibre reinforced polymer (FRP) . composites. Compared with thermosetting . composites (TSC), thermoplastic composites (TPC) are . 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. 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.. II. Post Development Stage - Sale to Host Government. I. Development Stage . –. GreenStreet Africa Development Company Ownership of All Intangible Assets *. Dist. . Gen. System #1. Dist. . Gen. System .