PPT-1 Welding

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. NMTS seeks out the most qualified inspectors with excellent safety records and retains many outstanding inspectors on our permanent staff. We do a thorough background check on all inspectors prior to mobilizing them to a job site. 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. 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. 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 . 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. 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.. 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. PRIMO AUTOMATION SYSTEMS. PIPE SPOOL WELDING SYSTEM. This is a Friction type pipe rotator system comprising of . Motorized Pipe rotating rolls with AC VFD . Manually swivelable column at the rear.. Lincoln Welding head with motorized slides for adjusting the welding torch position, integrally mounted to the above vertical slide.. AKA “Arc Welding. Officially known as: SMAW – “Shielded Metal Arc Welding . “Stick Welding”, AKA “Arc Welding. Officially known as: SMAW – “Shielded Metal Arc Welding . “Stick Welding”, AKA “Arc Welding. 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..