Used Welding Equipment – Different Processes Where it is Being Utilized

Equipment for welding comprises of materials or devices utilized for a wide array of purposes. Specifically, it is used for the so-called joining processes like arc, resistance, laser, electron beam, stud and orbital welding. Among a list of processes served by used equipment are wave soldering and a variety of brazing techniques.

Welding machines and systems may operate through the use of a welding power source. Sometimes, one may need a weld controller to facilitate the purposes served by the machine. Luckily, there are also complete systems with a surface or cutting machine, torch, feeders, cables, robots, positioners and feeders. In order to know more about used welding equipment, here is an explanation of processes where it is being utilized.

Welding the arc method

Arc welding involves different facets of welding including MIG and TIG. MIG welding stands for Metal Inert Gas Welding. At times, it may also be referred to as MAG Welding or Metal Active Gas Welding. This is considered as one of the highly popular arc welding processes because of its versatility. It makes use of different forms of gas to complete the process. The list includes pure carbon dioxide, pure argon gas or a mixture of these two chemical components.

Another process known as TIG Welding highly depends upon new or used welding equipment. TIG stands for Tungsten Inert Gas. This process is called as such because it makes use of tungsten when striking an arc between the workpiece and the welding electrode. The inert gas used in this type of arc welding process is argon. When compared to MIG Welding, this one is slower and is usually more expensive.

Welding has other processes included in its list. The likes of flux cored arc welding, gas metal arc welding and resistance seam welding are included. Spot welding and shielded metal arc welding are also popular categories under this welding process.

Other welding processes

Besides arc welding processes that employ welding equipment, frictional welding is also considered to form part of the list. Examples are hot plate welding, plastic welding, electron beam welding and Oxyfuel welding.

No matter how varied these processes are, there is a common denominator that applies to all. This is the fact that when looking for pre-owned equipment for welding, the machine should be able to comply with corrosion resistance, multiple operations and water cooling. Of course a heavy-duty machine that has engine driven generators are highly qualified to fulfill these processes.

Visit our Industrial Supply Online Marketplace (IndustrialSAVER.com) to post and explore offerings to buy/sell used welding equipment as well as a wide range of other industrial products and services from national and international manufacturers, exporters and distributors.

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Reduce Cost of MIG Welding Equipment With Welding Equipment Rental Suppliers

MIG welding machine holds a high rental demand considering its expensive price and limited use. Having it on rent from trustworthy suppliers, is becoming a trend nowadays.

Benefits of Renting MIG Welding Equipment

You can rent welding machines in order to maximize utilization of your fleet. Here are some of the other significant benefits to using them:

1. You pay for using it and not for its ownership
2. Helps in minimizing repair and maintenance cost
3. Reduces storage requirement, freight charges and handling needs
4. Sets you free of paying licensing fees and taxes
5. Dully trialed and tested

Enhance Your Business

Welding equipment contributes in increasing business productivity and minimizes investing high capital. Using the latest welding processes and technologies further improve the productivity of your company.

Why Rent Welding and MIG Equipment

Renting equipment and machines makes you aware of operations and functionality of the specific machine before you decide to buy it. It helps in assessing the capability of the selected machine depending on your company’s requirements. Suppliers of welding equipment also allow customers to customize equipment depending on their particular job requirements.

Focused Approach of Suppliers

Companies in this business offer groups of machines and equipment on rent. They work on providing assistive services and catering to the needs of different businesses. Here are some of the important factors which they focus on through their services:

1. Quality assurance: Rental companies often give preference to welding equipment and machines that surpass under stringent industry quality standards.
2. Availability of products: Provide an array of products meeting specific needs of every business.
3. Application support: Provide support for application and machine installation and they care to employ experienced and skilled professionals. They also help customers in choosing the appropriate machine for their needs.
4. Advanced technology: The suppliers strive to attain advancement and innovation in products they provide on rent. Proper maintenance of products helps remain their prime function.
5. Safety and eco-friendliness: For safety and security, machines undergo strict tests. They ensure that products they rent are compatible with environmental needs and help in reducing carbon footprints.

MIG equipment and welding equipment ensure appreciable utility for your business. They infuse innovation and technological advances into your business.

You can expand and enhance your business empire with MIG welding machine for rent. This decision can save you a lot of money… It is advisable to hire experienced suppliers of MIG welding tools and equipment for better results.

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Welding Techniques for Fabrication

In industry most of the materials are fabricated into the desired shapes mainly by one of the four methods, casting, forming, machining and welding. The selection of a particular technique depends upon different factors which may include shape and the size of the component, precision required, cost, material and its availability. Sometimes it is possible to use only one specific process to achieve the desired object. However, more often it is possible to have a choice between the processes available for making the end product. In the latter case economy plays the decisive role in making the final choice.

CASTING

Casting is perhaps the oldest known method of giving shapes to metals and alloys. When found suitable, it is the shortest route from the ore to the end product and usually the most economical. Through these days techniques have been developed to cast almost all metals and their alloys but still there are certain specific materials which have very superior casting properties, for example grey cast iron.

FORMING

After casting followed the forming process in which the metals and their alloys are given desired shapes by the application of pressure, either by sudden impact as in the case of hammer blows or by slow kneading action as in hydraulic presses. Mechanical working of a metal below its recrystallisation temperature is called ‘Cold Working’ and that accomplished above this temperature is known as ‘Hot Working’. Both hot and cold working (and forming) is practised extensively in the industry.

MACHINING

It is the process of giving the desired shape to a given material by removing the extra or unwanted material by cutting in the form of chips. The cutting tool material is by necessity harder and stronger than the material to be cut. The machining processes commonly employed are turning, milling, drilling, shaping, planning, reaming, boring etc. Through lathes and milling machines were used in connection with watch making even in the fifteenth and sixteenth centuries but most of theses processes were introduced into the high volume industries in their present forms for making stream engine parts in the late nineteenth century but have come of age in the present century.

WELDING

Welding as it is normally understood today is comparatively a new corner amongst the fabrication process through smith forging to join metal pieces was practised even before Christ. Through there are a number of well established welding process but arc welding with coated electrodes is still most popular welding process the world over.

These days different welding machine developed for different welding process like arc welding machine, MIG welding machine, TIG welding machine, welding rectifier, spot welding machine, plasma cutting machine and also portable welding machine like inverter welding machine (IGBT welding).

Arc welding in its present form appeared on industrial scene in 1880’s. Through there are conflicting claims about the inventor of this process but very often it is attributed to a Russian named Slavianoff who is claimed to have patented it in 1881. Arc welding machine, however, was not accepted for fabrication of critical components till about 1920 by which time coating for electrodes had been well developed. However, the demand for large scale production of heavy items like ships, pressure vessels, construction of bridges and the like provided the necessary impetus for welding to come of age and the Second World War firmly established it as the major fabrication process.

Welding which is a process of joining two or more parts of material (s) through provides a permanent join but does normally affect the metallurgy of the components. It is therefore usually accompanied by post weld heat treatment (PWHT) for most of the critical components.

Most materials can be welded by one process or the other. However, some are easier to weld than others. To compare this ease in Welding a term “Weldability” is often used. Weldability of a material depends upon various factors like the metallurgical changes that occur due to welding, changes in hardness in and around the weld, gas evolution and absorption, extent of oxidation, and the effect on cracking tendency of the joint. Depending upon these factors plain low carbon steels have the best weldability amongst metals. Quite often materials with high castability usually have low weldability.

Welding process widely used in the industry include oxy-acetylene, manual metal arc or shield metal arc (SMAW), submerged arc welding (SAW), metal inert gas (MIG), tungsten inert gas (TIG), thermit welding and cold pressure welding. Most of these processes have special fields of influence like resistance welding is popular with the automobile industry, thermit welding for joining rails in situ, MIG welding is particularly suited for welding of low carbon steel structures as also welding of stainless steels and aluminium, TIG welding is more popular with aeronautical and nuclear industries, SAW welding for ship building, cold pressure welding by food processing industry, and the like. However, SMAW or stick electrode welding and oxy-acetylene welding processes are the general purpose processes with a wide range of applications.

Some of the typical applications of welding include the fabrication of ships, pressure vessels, automobile bodies, off-shore platforms, bridges, welded pipes, sealing of nuclear fuel and explosives etc.

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Most Commonly Used Equipment in the Welding Industry

Welding machines are useful for a number of joining processes. This includes arc welding, resistance brazing, laser soldering, electronic beam soldering, orbital fusing, and more. Each type of machine features different devices that include power sources, monitors, and controllers for brazing, soldering, and welding.

MIG Welding

One of the most versatile and common types of welding machines are metal inert gas or MIG welding machines. They are useful in home workshops and industries for welding different metals such as steel, stainless steel and aluminum. This is a process in which a continuous electrode and shielding gas is fed through a MIG torch or welding gun. Carbon dioxide gas is commonly used for general purpose welding since it’s cost-effective and creates good welds. The voltage, amperage and speed of electrodes and shielding gas through the welder could be adjusted. In addition, the flow of gas can also be controlled through a flow meter while the tension on the welding wire is variable as well.

TIG Welding

TIG or Tungsten inert gas welding machines are useful in welding thinner sections of stainless steel and non-ferrous metals such as copper alloys, magnesium, and aluminum. The process involves a tungsten electrode that delivers the current to the soldering arc, a shielding gas such as argon to protect the weld area from contamination, and a filler metal. TIG welding machines offer the operator greater control when compared with MIG welding. These machines are available with DC or direct current and AC/DC alternating current, direct current which is useful for fusing ferrous types of metals and both ferrous and non-ferrous types. TIG welds are clean without the buildup of sparks and fumes, which makes it ideal for welding metal artwork. It is also used to weld aluminum cycle and motorcycle frames and food processing equipment.

Arc Welding

Arc welding or stick welding machines use a power supply to form an electric arc between an electrode and base material that melts the metals at the fuse point. Either alternating or direct current could be used. The electrode is made from a material compatible with the base material that needs welding. It’s covered with flux to produce carbon dioxide gas to prevent oxidation and contamination. Arc welders are available in two types. Alternating current welders are air-cooled or oil cooled while direct current welders uses an air cooling system. Inverter welders are the most common type of DC arc welders. While arc welding is generally limited to ferrous metals, it is also possible to weld cast iron, copper, nickel, and other non-ferrous metals. Therefore, arc welders are useful for a number of applications in repair work and construction.

Welding equipment comes in a variety of shapes and sizes ranging from small welders for home use to industrial machines used in specialized industries such as automotive and construction. Mig, Tig, arc and spot welding machines are the common types used today.

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The Three Golden Rules of Welding

The three golden rules are as follows:

1. Joint preparation is critical.
2. Welding machine set-up is the key to a smooth weld.
3. Comfort is more important than welding technique.

Joint preparation is the part of welding most people never think about. We concentrate on welding techniques and anything else that seems to be the answer to a better weld! The fact is no matter what welding process is chosen the joint set-up is the first part of producing a sound quality weld. What you put in is what you get out! A dirty joint or improper fit-up will make the best welders fail at their job. If you spend some time properly fitting up and preparing you weld joint; the welding part will become much easier. The last thing you want in a weld joint is moisture, paint, rust, mill scale, or anything else that does not belong there! If you work with clean metal, and a clean weld joint, the only thing left is a clean weld. Don’t expect the weld to clean itself because that is your job!

Proper welding machine set-up is the key to having a smooth weld and at the same time can compensate for a lack of skill. Many welders get so used to using the same machine all of the time they forget how to set one up. I am guilty of this myself. When I work with the same welding machine I get very intimate with the way the machine runs. After a while you just know where to set the machine for what you are going to weld. The key to sound weld quality is know how to set any welding machine to run properly. Before getting caught up in welding techniques and other distractions lean how to set any welding machine out there. This is so true when it comes to taking onsite welder qualification tests!

Comfort is the most important part of welding. No matter what welding technique you choose being comfortable is what it is all about. Find a comfortable position and something to lean on. The goal is to stabilize your body and hands so you have full control over your welding technique. It is better to be comfortable and in control then have a welding technique down but you are not able to stay steady when welding.

My name is David Zielinski and I am a Certified Welder. If you would like more information on welding then visit my website http://www.gowelding.org. All of the information is free and it is full of accurate, hard-to-find, real-life welding tutorials!

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Miller Welding Vs Lincoln Welding – Who’s the Best?

Miller welding company is a class act.

I have a choice when it comes to the welding machine I use. I could choose to use ESAB, Lincoln Welding, Fronius, Panasonic, and a bunch of others. But I choose Miller Welding equipment. Why? There are actually several reasons but the number one reason is the people. Every Miller Electric representative that I have dealt with has been knowledgeable and more than helpful. After visiting the Miller Welding equipment headquarters in Appleton, Wisconsin, and seeing the rigorous testing the welding machines go through, I am even more convinced that they make quality welding machines.

I attended a focus group type seminar once that was mostly comprised of technicians that repaired welding machines. They all preferred working on Miller welding machines. When I asked why, they all agreed that customer support, parts availability and dependability, were big factors that impressed them.

I have welded with Miller, L-Tec, Linde, Lincoln, Hobart, and even JC Penney welding machines. Honestly, if someone were to paint them all black, I am not sure I could tell some of them apart by the arc (The JC Penney one, I definitely could tell). But the customer support thing, thats what makes the difference. If I have a problem with a machine that is still under warranty, I dont get some jerk on the phone asking me what I did wrong. What I do get is the Miller Welding Rep making sure my machine gets picked up and sent to the repair shop and returned to me good as new.

I have heard some stories about the customer support of other welding machine companies. I have also heard that most of the big welding machine companies are stepping up to the plate now. But Miller set the bar.

Jody Collier’s Welding tips and tricks Website is full of Down and Dirty welding tips. For TIG, MIG, STICK and a buttload of other welding information, visit http://www.weldingtipsandtricks.com/

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