Welding


Laser beam welding is a technique in manufacturing whereby two or more pieces of material (usually metal) are joined by together through use of a laser beam. ...more on Wikipedia about "Laser beam welding"

Laser-hybrid welding is a new type of welding process that combines the principles of laser beam welding and arc welding. as processed by Dr Shyel Stark ...more on Wikipedia about "Laser-hybrid welding"

This is a list of welding processes, separated into their respective categories. ...more on Wikipedia about "List of welding processes"

MAPP gas is liquefied petroleum gas mixed with methylacetylene- propadiene. MAPP is the tradename for a product of the Dow Chemical Company. In Australia it is known as RazorGas and is a trademark of ELGAS. ...more on Wikipedia about "MAPP gas"

Oxy-fuel welding is a welding process commonly called oxyacetylene welding since acetylene is the predominant choice for a fuel, or often simply gas welding. A virtually identical procedure, with a different type of gas torch, a blowtorch, is used for cutting metal and called oxy-fuel cutting. ...more on Wikipedia about "Oxy-fuel welding and cutting"

Plasma arc welding (PAW) is an arc welding process similar to gas tungsten arc welding (GTAW). The electric arc is formed between an electrode (which is usually but not always made of a sintered tungsten) and the workpiece. The key difference from GTAW is that in PAW, by positioning the electrode within the body of the torch, the plasma arc can be separated from the shielding gas envelope. The plasma is then forced through a fine-bore copper nozzle which constricts the arc and the plasma exits the orifice at high velocities (approaching the speed of sound) and a temperature approaching 20,000 °C. ...more on Wikipedia about "Plasma arc welding"

Several techniques are used to weld plastic parts together; ...more on Wikipedia about "Plastic welding" Can you feel it? shortopedia. Welding

Resistance welding refers to a group of welding processes that produce coalescence of the faying surfaces with the heat obtained from resistance of the workpieces to the flow of the welding current in a circuit of which the workpieces are part, and by the application of pressure. Small pools of molten metal are formed at the weld area as high amounts of current (1000–100 000 A) is passed through the metal. In general, resistance welding methods are efficient and cause little pollution, but their applications are somewhat limited and the equipment cost can be high. ...more on Wikipedia about "Resistance welding"

Robot welding is the use of mechanized programmable tools ( robots), which completely automate a welding process by both performing the weld and handling the part. Processes like gas metal arc welding, while often automated, are not necessarily equivalent to robot welding, since a human operator sometimes prepares the materials to be welded. Robot welding is commonly used for resistance spot welding and arc welding in high production applications, such as the automotive industry. ...more on Wikipedia about "Robot welding"

Resistance Seam Welding is a resistance welding process that produces a weld at the faying surfaces of overlapped parts along a length of a joint. The weld may be made by overlapping weld nuggets, a continuous weld nugget or by forging the joint as it is heated to the welding temperature by resistance to the flow of welding current. ...more on Wikipedia about "Seam welding"

Shielded metal arc welding (SMAW), also known as manual metal arc (MMA) welding or informally as stick welding, is a manual arc welding process that uses a consumable electrode coated in flux to lay the weld. An electric current (either alternating current or direct current from a welding power supply) is used to form an electric arc between the electrode and the metals to be joined. As the weld is laid, the flux coating of the electrode disintegrates, giving off vapors that serve as a shielding gas and providing a layer of slag, both of which protect the weld area from atmospheric contamination. ...more on Wikipedia about "Shielded metal arc welding"

Shielding gases are inert or semi- inert gases that are commonly used in several welding processes, most notably gas metal arc welding and gas tungsten arc welding. Their purpose is to protect the weld area from atmospheric gases, such as oxygen, nitrogen, carbon dioxide, and water vapor. Depending on the materials being welded, these atmospheric gases can reduce the quality of the weld or make the welding process more difficult to use. Other arc welding processes use other methods of protecting the weld from the atmosphere as well – shielded metal arc welding, for example, uses an electrode covered in a flux that produces carbon dioxide when consumed, a semi-inert gas that is an acceptable shielding gas for welding steel. ...more on Wikipedia about "Shielding gas"

Shot welding is a specific type of spot welding used to join two pieces of metal together. This is accomplished by clamping the two pieces together and then passing a large electric current through them for a short period of time. Assuming the right amount of current for the right time, this will weld the two pieces of metal together. Shot welding was invented by Earl J. Ragsdale, a mechanical engineer at the Budd Company, in 1932 for the purposes of welding stainless steel. This welding method was used to construct the Pioneer Zephyr. ...more on Wikipedia about "Shot welding"

Spin welding is a welding technique in which the parts to be welded are heated by friction. The heat may be generated by turning on a lathe, a drill press, or a milling machine, where one part is driven by the chuck, and the other is held stationary with the spinning part driven against it. This is continued until the heat of friction between the parts reaches a sufficient level for the parts to weld. The stationary part is then released to spin as well, while pressure is applied along the axis of rotation, holding the parts together as they cool. ...more on Wikipedia about "Spin welding"

Spot welding is a type of resistance welding used to weld various sheet metals. typically in the 0.5-3.0mm thickness range. The process uses two shaped copper alloy electrodes to concentrate welding current and force between the materials to be welded. The result is a small "spot" that is quickly heated to the melting point, forming a nugget of welded metal after the current is removed. Applying the current for too long can result in molten metal being expelled as weld splash, or can even burn a hole right through the materials being welded. ...more on Wikipedia about "Spot welding"

Stud welding is a form of spot welding where a bolt or specially formed nut is welded on to another metal part. The bolts may be automatically fed into the spot welder. Weld nuts generally have a flange with small nubs that melt to form the weld. Studs will have a necked down, unthreaded area for the same purpose. ...more on Wikipedia about "Stud welding"

Submerged Arc Welding (SAW) is a common arc welding process. It requires a continuously fed consumable solid or tubular (metal cored) electrode. The molten weld and the arc zone are protected from atmospheric contamination by being “submerged” under a blanket of granular fusible flux. When molten, the flux becomes conductive, and provides a current path between the electrode and the work. ...more on Wikipedia about "Submerged arc welding"

A thermal lance or thermic lance or burning bar is a tool which burns iron in an oxygen environment to create very high temperatures for cutting. It consists of a long iron tube, often packed with iron wire. One end of the tube is placed in a holder and oxygen is fed through the tube. ...more on Wikipedia about "Thermal lance"

A thermite reaction (a type of aluminothermic reaction) is one in which aluminium metal is oxidized by the oxide of another metal, most commonly iron oxide. The name thermite is also used to refer to a mixture of two such chemicals. The products are aluminium oxide, free elemental Iron, and a great deal of heat. The reactants are commonly powdered and mixed with a binder to keep the material solid and prevent separation. ...more on Wikipedia about "Thermite"

Thermite welding is the process of igniting a mix of high energy materials that produce a metallic slag that is poured between the working pieces of metal to form a join. Commonly utilizing the composition of 5 parts iron oxide red (rust) powder and 3 parts aluminium powder ignited at high temperatures. A violent reaction occurs that produces through reduction and oxidation a red hot iron slag and vaporous aluminium oxide. This form of welding is almost obselete, although once the most common way of welding due to its ease, as the mixture was able to be purchased ready made. This form of welding is still in use today but on a much lower scale, now only being used for quick fixes on ship hull punctures and the likes. Not particually a weld of quality due to the fact of low to nil carbon content in the filling metal and low heat pentration into the joining metals. This method is usually used in conjunction with oxyacetylene flame to create a good fusion with the working pieces of metal. ...more on Wikipedia about "Thermite welding"

In ultrasonic welding, energy is delivered to the joint area in the form of high-power ultrasound. This type of welding is used to build assemblies that are too small, complex, or delicate for more common welding techniques. ...more on Wikipedia about "Ultrasonic welding" Tell your opinion about www.shortopedia.com

Underwater welding refers to a number of distinct welding processes that are performed underwater. ...more on Wikipedia about "Underwater welding"

A water torch, sometimes called a water welder, is a device that produces the high-temperature flame required for the precision welding, brazing, and cutting of metals typically employed in the making of jewelry. It operates by using DC electricity to separate water into hydrogen and oxygen, which are then burned at the torch head. Potassium hydroxide or another ionic compound is added to the water; this makes the water more conductive, allowing electricity to pass through it more readily when it is split by electrolysis. The gases are reunited at the torch head, which burns them at temperatures of around 5,000 degrees Fahrenheit. Water torch systems are typically limited to jewelry and electronics applications because of the low heat output. An alcohol bubbler is available on some systems. This mixes a small concentration of vaporized alcohol with the hydrogen and oxygen. The alcohol flame produces more heat, but its temperature is not as high. ...more on Wikipedia about "Water torch"

The weldability of a material refers to its ability to be welded. Many metals and thermoplastics can be welded, but some are easier to weld than others. It greatly influences weld quality and is an important factor in choosing which welding process to use. ...more on Wikipedia about "Weldability"

Welding is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material that cools to become a strong joint, but sometimes pressure is used in conjunction with heat, or by itself, to produce the weld. This is in contrast with soldering and brazing, which involve melting a lower-melting-point material between the workpieces to form a bond between them, without melting the workpieces. ...more on Wikipedia about "Welding" Be happy with shortopedia Welding

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