What is MIG Welding? Metal Inert Gas (MIG) welding‚ also sometimes called Gas Metal Arc Welding (GMAW) is a process that was developed in the 1940s for welding aluminum and other non-ferrous metals. MIG welding is an automatic or semi-automatic process in which a wire connected to a source of direct current acts as an electrode to join two pieces of metal as it is continuously passed through a welding gun. A flow of an inert gas‚ originally argon‚ is also passed through the welding gun at the same
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INTRODUCTION TO WELDING & FUSION WELDING PROCESS Dr. Tasnim Firdaus Ariff Welding Fundamentals Overview of Welding Technology 2. The Weld Joint 3. Features of a Fusion Welded Joint 1. 2 Joining and Assembly Distinguished Joining - welding‚ brazing‚ soldering‚ and adhesive bonding These processes form a permanent joint between parts Assembly - mechanical methods (usually) of fastening parts together Some of these methods allow for easy disassembly‚ while others do not 3 Welding Joining process
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millennia‚ called forge welding‚ with the earliest examples of welding from the Bronze Age and the Iron Age in Europe and the Middle East. The ancient Greek historian Herodotus states in The Histories of the 5th century BC that Glaucus of Chios "was the man who single-handedly invented iron-welding."[1] Welding was used in the construction of the iron pillar in Delhi‚ India‚ erected about 310 AD and weighing 5.4 metric tons.[2] The Middle Ages brought advances in forge welding‚ in which blacksmiths
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What is welding? When did it first come about? How does it work? Welding is a method of creating or repairing metal structures by joining several individual pieces of metals together through various forms of fusion processes. The history of welding dates back to ancient times. The earliest known examples of welding came from the Bronze Age. During the Middle Ages blacksmithing was developed and many items of iron were forged together by hammering. During the 19th century was when welding became to
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A lot of skills today are looked over‚ and undermined. One of those skills is welding. Welding is more than just a blue collar job‚ and more than just sparks flying in the air. It is art. The art of joining metals and binding metals together‚ and requires more skill than the average person will ever know. Welding started in 1000 B.C. The history of welding begins with the discovery of shaping metals together from Copper‚ Bronze‚ Silver‚ Gold‚ and Iron‚ than so leading into steel. The first things
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Welding Dangers Annotated Bibliography "Warning: Welding May Be Hazardous to Your Health." Warning: Welding May Be Hazardous to Your Health. N.p.‚ n.d. Web. 12 Feb. 2013. This article explains a little about welding fumes and how they are dangerous to people’s health. There are short term and long term respiratory effects from welding gases and fumes. Some of the gases that are inhaled can cause diseases such as ones close to Parkinson’s disease. To be protected from these fumes‚ the work area
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A Definition of Welding Welding is a joining process that produces a local coalescence of materials by heating‚ by applying pressure‚ or both. In essence‚ the welding process fuses the surfaces of two distinct elements to form a single unit. It encompasses a broad range of joining techniques that include fusion welding‚ solid state welding‚ weldbonding‚ diffusion welding‚ brazing‚ and soldering. The Scope and Impact of Welding Welding dates back to the earliest days of metalworking‚ and continues
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Fusion welding and non-fusion welding Fusion welding is defined as a welding process of using heat by melting the base of metals in order to joint similar types of metals together. Filler is used in this welding process to provide bulk and strength to the welded joint [1]. Whereas non-fusion welding which is known also as solid state welding is a welding process where a particular amount of heat is applied to the joining metals which essentially below the melting point of the base metals that being
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equipment‚ grinder‚ polisher‚ acid bath ets. Also used high powered microscope. EQUIPMENT Continued (use this additional space for diagrams‚ photographs etc…) PROCEDURE Standard microscopic analysis techniques‚ grinding‚ polishing‚ etching ets. PROCEDURE Continued (Use this space to include illustrations). [pic] Micrograph of 0.2% carbon [pic]2 0.2 [pic] 0.1 [pic]w 0.1 [pic] 0.78 [pic] [pic] 0.6 [pic] [pic] 0.5 [pic] [pic]
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SUMMER INTERNSHIP REPORT FINITE ELEMENT TRANSIENT THERMAL ANALYSIS OF LASER WELDING PROCESS ABSTRACT In this project‚ Laser welding process has successfully been used for joining of two stainless steel plates. The sizes of the metal plates are 50mmX40mmX2mm each. The distribution of the temperature field in laser welding using stainless steel sheets were simulated by ANSYS. The thermal properties which have been used for thermal simulation are assumed to be varying with temperature
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