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Like all joining processes (in fact, like all processes!), welding offers several advantages but has some disadvantages as well. The most significant advantage of welding is undoubtedly that it provides exceptional structural integrity, producing joints with very high efficiencies. The strength of joints that are welded continuously (i.e.,full length, without intentional skipped areas) can easily

Magnetically impelled arc butt (MIAB) welding (sometimes referred to as rotating arc welding) is a rapid, clean, and reliable arc welding process that employs forging to produce the finished weld. As such, it is classified as an electric arc welding process since that is the energy source for producing melting or fusion, even though pressure from forging is needed to complete the weld. It is

Abrasive Jet Machining (AJM) Principles In abrasive jet machining process, a focused steam of abrasive particles (of size 10 to 40 microns) carried by high pressure gas or air at a velocity of about 150 to 300 m/sec is made to impinge on the work surface through a nozzle, and the work material is removed by erosion by the high velocity abrasive particles. The inside diameter (ID) of the

Gas-tungsten arc welding (GTAW) uses a permanent, non-consumable tungsten electrode to create an arc to a workpiece. This electrode is shielded by an inert gas, such as argon or helium (or a mixture of the two), to prevent electrode degradation; hence the older, common names tungsten-inert gas (TIG) and heli-arc welding. As shown in Figure below, current from the power supply is passed to the

Aluminotherrnic welding is commonly known as Thermit welding. As a subset, these processes use the heat from highly exothermic chemical reactions of solid, particulate materials (or, occasionally, solid particles and a gas) to produce melting and joining, also called coalescence, between metals. Most often, the reactants employed are oxides with low heats of formation and metallic reducing

Miller Welders are one of the most famous manufacturers of TIG welding equipment. Performing TIG welding perfectly is an art. And for a clean, successful and accurate TIG weld we need efficient welders and efficient welding machine. Miller TIG welder always comes handy in achieving the desired weld. Miller manufactures two types TIG of welding equipment AC/DC all type metal welder (including

Welding is an art. There are different types of welding methods. TIG or Tungsten Inert Gas Welding is technique for great welded joints. TIG or Gas Metal Arc Welding (GMAW) needs some great craftsmanship to master. And for this reason we need some decent welding machine from a renowned company. Miller TIG Welder is great when it comes to weld an accurate and clean weld. Please Read : Miller

Miller BOBCAT 250 EFI Rugged welder / generator is a very good equipment for Stick as well as Flux-Cored Welding. It can be used for construction and maintenance /repair operations. It is quitter. There is improvement on the sound level. So there is significant improvement in the jobsite communication as a result a safer and more efficient working environment is guaranteed. Miller bobcat 250

Catalytic Converters Catalytic converter is a way of treating exhaust gases. These convert harmful pollutants into harmless gases. A catalyst is a material that causes chemical change without entering into chemical reaction. In effect the catalyst encourages to react with each other. For example, in the HC/CO catalytic converter, the catalyst encourage5 the HC to unite with oxygen to produce

The History of TIG Welding Russel Meredith applied for a patent for TIG or GTAW in 1941. He is most credible for the invention of TIG welding. The main application of TIG or GTAW is found in effective welding of light aircraft. MIG welding of GMAW was invented before TIG welding but light aircrfat welding needed more reliable welding as well as more fusion power and TIG welding is very

Connecting rod big-end bearings are precision-insert bearings. The insert-type bearing is usually not adjustable. However, it can be replaced, if the rod, crankpin, and other engine components are in good condition. When a rod bearing falls, an analysis should be made to determine the cause. Then the cause can be eliminated so that the failure will not repeated. Lets move into the failure

Automobile engineering is an indispensable part of Mechanical Engineering. Many mechanical engineering students study this discipline only get themselves acquainted with this subject. Most of the students choose Mechanical Engineering to get themselves familiar with the mechanism of automobile. Automobile Engineering Books are must for those students. Proper guidance from teachers is of course

The purpose of this article is to create a list of mechanical engineering books for the core courses of Mechanical Engineering. There are a number of books available for the meticulous study of Mechanical Engineering subjects. If we were able to study all the books of ME core courses then it would have been great ! But sadly it is not possible. And most of the times it is not possible to buy all

The piece of wire or rod used to carry current for welding is known as an electrode or welding electrode. It may or may not have flux covering. The electrode produces arc at one end and other end is gripped by a electrode holder. In this article we will discuss the classification of welding electrode as well as explain different welding electrodes types. Please read about: Different types of

Gas Metal Arc Welding (GMAW) and Gas Tungsten Arc Welding (GTAW) are suitable for aluminum welding. Aluminum alloy castings need the same technique applied to aluminum sheets and many different wrought products. Many castings are vulnerable to thermal strains because of delicate designs and varying cross sectional areas. Sometimes aluminum alloy castings need heat treatments before welding. TIG

In this article we will be - Identifying common welding defects Preventing and fixing problems with your welds If I could wave my magic filler rod and make it so that all your welds would be strong, clean, and sharp-looking, I’d certainly do it. But the last time I went to the welding supply shop and asked to buy a magic filler rod, they looked at me like I was nuts, so for now you just have to

Working Principle of Resistance Projection Welding (RPW) In resistance projection welding (RPW), small projections are formed on one or both pieces of the base metal to obtain contact at a point which localize the current flow and concentrate the heat. Under pressure, the heated and softened projections collapse and a weld is formed. Projection on the upper component is pressed against the

Resistance Spot Welding (RSW) Working Principle Resistance Spot welding is comparatively modern welding process. It came in to the field of welding in between years 1900 - 1905. It is a most widely used resistance welding method. The main purpose of resistance spot welding method is to join two to four light gauge overlapping metal sheets (which can have thickness up to 3 mm) . At first

Resistance Seam Welding (RSEW) Working Principles The Resistance Seam Welding (RSEW) is very much similar to the Spot Welding (RSW) but here circular rotating electrodes are used. And here we get continuous weld which is air-tight (If the process is perfect). The seam-welding form of the resistance process is a series of overlapping welds. Two or more sheets of base metal are usually passed

Mild steel is the most commonly used steel. It is used in the industries as well in the different everyday objects we use. Even the pans and spoons of the kitchen are sometimes made of mild steel. The main target of this article is to discuss about different mild steel properties. The mild steel is very important in the manufacturing of metal items. Almost 90% steel products of the world is made