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International Research Journal of Engineering and Technology (IRJET)

e-ISSN: 2395-0056

Volume: 11 Issue: 08 | August 2024

p-ISSN: 2395-0072

www.irjet.net

Design, Manufacturing and Testing of Multiuser Three Phase Welding Machine Vishal Vishwanath Ballal 1, Dr. A.B. Kolekar2, Mr. G. R. Shinde3 1M. Tech Student, Department of Technology, Shivaji University, Kolhapur, Maharashtra 2 Professor, Department of Technology, Shivaji University, Kolhapur, Maharashtra

3Assistant Professor, Department of Technology, Shivaji University, Kolhapur, Maharashtra ---------------------------------------------------------------------***---------------------------------------------------------------------

Abstract - Welding is a fabrication or sculptural process

electrode to produce the weld. The weld area is protected from atmospheric contamination by an inert shielding gas such as argon or helium.

that joins materials, usually metals or thermoplastics, by causing fusion, which is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal. In addition to melting the base metal, a filler material is often added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that can be as strong, or even stronger, than the base material. Pressure may also be used in conjunction with heat, or by itself, to produce a weld. All the welding machines are 1phase and 2phase in nature and only one user can work on one machine, no other one user can work on same machine. If we use another holder for welding then we should use another welding machine, so it will increase cost of machine, it takes some space, energy use, so, by using three phase welding machine we can overcome this problem. In three phase welding machine we use three holders at a time for low and medium work and for heavy work we can use two holders at a time.

ii) Gas metal arc welding (GMAW) – commonly termed MIG (metal, inert gas), uses a wire feeding gun that feeds wire at an adjustable speed and flows an argonbased shielding gas or a mix of argon and carbon dioxide (CO2) over the weld puddle to protect it from atmospheric contamination. iii) Flux-cored arc welding (FCAW) – almost identical to MIG welding except it uses a special tubular wire filled with flux; it can be used with or without shielding gas, depending on the filler. iv) Submerged arc welding (SAW) – uses an automatically fed consumable electrode and a blanket of granular fusible flux. The molten weld and the arc zone are protected from atmospheric contamination by being "submerged" under the flux blanket.

Key Words: Welding, Welding Transformer , winding, electrical energy , Frequency

v) Electroslag welding (ESW) – a highly productive, single pass welding process for thicker materials between 1 inch (25 mm) and 12 inches (300 mm) in a vertical or close to vertical position.

1.INTRODUCTION Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing fusion, which is distinct from lower temperature metaljoining techniques such as brazing and soldering, which do not melt the base metal. Although less common, there are also solid-state welding processes such as friction welding or shielded active gas welding in which metal does not melt.

2. METHODOLOGY 2.1 Design Aspects of Welding Transformer The design of transformer depends upon the ratings, voltage, type, service conditions, and the relative costs of copper, iron, insulating materials, labor, machinery and organization. Welding transformer is essentially a step-down transformer with a fixed standard primary input voltage 230/250 volts for single phase units and 400/440 volts for double phase or three phase units. The secondary voltage being 50/60 to 100 volts depending on the service condition and the work for which it is to be used.

Some of the best-known welding methods include: Shielded metal arc welding (SMAW) – also known as "stick welding or electric welding", uses an electrode that has flux around it to protect the weld puddle. The electrode holderholds the electrode as it slowly melts away. Slag protects the weld puddle from atmospheric contamination. i)

Core frames are standardized to reduce the manufacturing cost. Preliminary designs are prepared on the basis of previous experience, with due regard to the economical use of materials. Thus, dimensions may have to be modified in

Gas tungsten arc welding (GTAW) – also known as TIG (tungsten, inert gas), uses a non-consumable tungsten

Impact Factor value: 8.315

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