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Used Welding Tools and Equipment – Ensuring Business Expansion With Enhanced Productivity

A number of top-notch companies at some point need welding tools and equipment. Different tools for welding include gas and LPG engine welders, diesel engine welders, stick welders, multi-process welders, spool guns, TIG welders, Automatic wire-feeders and many more. Being very expensive, businesses do not prefer to buy them but instead rent them. Numerous suppliers of welding machines, equipment, and tools provide the service of renting and leasing them.

Welding Equipment and Their Functions:

  1. Gas and LPG welders: these operate with engines offering different wattage and amperages. Allowing users to combine AC or DC welding, you can use it as auxiliary power for grinders, lights, and many other tools.
  2. Positioners and manipulators: a wide range of welding manipulators and tailstock positioners offer higher efficiency and safety. Headstock positioners handle time consuming pieces across a horizontal centerline.
  3. Generators: the generators cater fully engine-driven generators comprising natural gas, diesel, and dual fuel as well.
  4. Specialty equipment: a varied assortment of specialty equipment is useful for manifold purposes such as electrodes ovens, compressors, flux holding ovens, gas cylinder cages and much more.
  5. Induction systems: The induction system is highly efficient and operates on heating without contact.

Advantages of Renting Welding Machines

  1. Reduced costs of equipment and other welding tools.
  2. Minimize costs of machine repairs and maintenance.
  3. Eliminating the need of freight cost, storage and handling requirements.
  4. Use the freed capital in manifold beneficial ways.
  5. Advantageous processes of welding and latest technology used in equipment leads to the growth of business.
  6. No need to pay fees for licensing and other taxes as well.

Benefits from trusted supplier

Though many suppliers are available in market to choose from, yet it is an intelligent option to select most reliable and trusted one for renting or leasing welding machines and other related tools. They offer various benefits to you as:

  1. Wide range of products: They offer a wide range of products for your specific requirements. In case some equipment is not available, they quickly make it available.
  2. Diversity in products: welding tools and equipment comprise welding positioners, welders, and other equipment related to equipment like electrode ovens, pipe bevellers, plasma cutters etc.
  3. Expert assistance: Customers aware of their needs get advice regarding particular product fitting their needs.
  4. Reliable performance of equipment: They have both new and used products but all machines and equipments are engineered and serviced to withstand extremely powerful performance and durability even in harshest conditions
  5. Financing facility: They proffer financing facility for short and long-term rentals of welding machines, tools, and equipment. They have customized programs for lease and fleet outsourcing.

In short, suppliers of used welding machines and tools are highly efficient meeting all your particular needs. Focusing on core business skills, they strive to bring value addition to your business minimizing the inventory costs. Consequently, you can maximize your savings while increasing job productivity of business with renting inventory from such reliable suppliers of business machines, equipment, and tools.

Article Source: http://EzineArticles.com/9333216

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TIG (Tungsten Inert Gas) Welding

INTRODUCTION

The idea of the use of non-consumable electrodes with inert gas shield for welding was first considered as early as 1920. However, the first patent for use of tungsten electrode with argon or helium shielding was reportedly issued in U.S.A. in 1930. Presently TIG welding is one of the most well established processes which can not only weld all metals of industrial use but also gives the best quality welds amongst the arc welding processes.

EQUIPMENT AND MATERIALS

The standard equipment for manual TIG welding machine is quite simple and consists mainly of a power supply source, a welding torch and the connecting cables and hoses for a gas and water supplies. The accessories like feed wire mechanism, arc voltage control and feed-back system, electrode positioning device, seam tracking device, oscillator, etc. are incorporated in the system when semi-automatic and automatic versions of the process are employed. The material used in the tungsten rods and the major consumables are the shielding gas and the filler wire, where used.

POWER SOURCE

Both d.c. and a.c. power supply sources are used with the static volt ampere (V-I) characteristic of the drooping type, that is, of the constant current type. In this type of power source the change in current with the change in arc length is minimal. Thus, an inadvertent slight shift in the welder’s hand will not have any discern able affect on the performance of the process. That is why steeper the V-I characteristic curve the more satisfactory the power source and this is particularly so for manual TIG welding.

TIG WELDING TORCH

TIG welding torches are designed for manual or automatic operation. Torches used for manual welding are provided with handles while those for automatic operation are without handles.

There are two basic types of TIG welding torches, air cooled and the water cooled. The air cooled torches are used with currents upto 150A while the water cooled torches are used with currents upto 1000A. The water cooled torches are available for currents differing in steps of 50A, for examples,200A TIG torches are rated by the current carrying capacity normally at 100% duty cycle.

WIRE FEED MECHANISM

The wire feed mechanism for TIG welding consists of three components viz; wire drive mechanism, speed control, and the wire guide attachment. The drive mechanism consists of a geared motor to drive the grooved rolls to push the wire. The speed control mechanism is essentially a constant speed governor and the wire is usually guided from the roller to the guide attachment through a flexible conduit. An adjustable wire guide is attached to the welding head so as to maintain the correct position and the angle of approach with respect to the tungsten electrode, work surface and the joint seam.

SHIELDING GAS

Usually an inert gas like argon or helium is used as the shielding gas for TIG. From amongst the active gases only hydrogen and nitrogen are employed for limited application and that also by mixing with helium or argon. In general gas selection is based on the metal to be welded.

Mild Steel: TIG is employed for high quality welds in the mild steel for thickness upto 3 mm and for that argon is generally used as the shielding gas. For thicker section Ar or Ar-He mixtures are found satisfactory. For TIG of pipe, Ar is recommended both for shielding and purging.

Stainless Steel and High Temperature Alloys: For stainless steel and high temperature alloys argon is used for manual TIG while hydrogen upto 25% is added to argon or helium for mechanised welding of these alloys. Hydrogen increases the arc voltage and makes the arc run hotter. A higher voltage is found desirable for welding thicker sections and materials with higher thermal conductivity.

Aluminium: Argon is generally used for welding aluminium; however Ar-He mixtures are employed when bead geometry needs to be controlled at high welding currents. For manual TIG welding of aluminium, argon shielding with A.C. and H.F. stabilisation is found superior to use of helium shielding with D.C. Argon provides easy arc initiation, better cleaning action and superior weld quality in production welding than does helium.

For more info on TIG welding machine and welding machine visit weldingmachineindia.co.in

Article Source: http://EzineArticles.com/7926913


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An Overview of Welding Machines – Gas and Arc Processes

This article sets out to outline the different types of welders used in the metal fabrication industry and their respective applications. Welders can be broken down into two categories: those that use a flame for their heat source and those that use an electric arc.

Flame welders consist of four major parts: compressed gas cylinders, regulators, hoses, and a handle. The gas cylinders contain a fuel and an oxidizer. Acetylene and oxygen are the most common fuel-oxidizer combination, but many people use propane for fuel because of Acetylene’s relative instability. Each cylinder has a manual valve that when open allows gas to flow into the regulator. Each gas cylinder has an adjustable regulator that reduces the pressure of the gas from the higher cylinder pressure to a consistent pressure. Adjusting the regulators allows adjustment of the flame. The regulators are connected to the welding handle by rubber hoses. The handle contains on/off valves for both the acetylene and oxygen, and a threaded adapter to allow attachment of various welding, brazing, and cutting tips. Because of this design the gas welding outfit is the most versatile – with the right accessories nearly any operation can be completed. A skilled operator can also weld thin metal with precise control of the welding flame. Gas welding can easily result in a contaminated weld if the operator is not diligent and the flame is not properly adjusted.

Arc welding is broken down into three categories of machines, based on the electrode material and the shielding gas type. SMAW is the simplest process, which stands for shielded metal arc welding. An electrode holder clamps a long metal electrode coated in a flux mixture. An arc is struck between the electrode and the work piece. The electrode metal is deposited to fill the weld, and the flux burns and creates a shielding gas. GTAW welding, or more commonly referred to as TIG welding, stands for Gas Tungsten Arc Welding. GTAW welding employs an inert gas, usually a mix of argon and co2 to prevent the weld from being contaminated by oxidation. The Tungsten in GTAW stands for the tungsten electrode that is used to support the welding arc. The work piece forms the negative side of the circuit, and a tungsten electrode forms the positive side, which is contained in a handle, referred to as the ‘torch’. The welding operator manipulates the arc using a voltage control foot pedal and by varying the distance of the torch from the work. The weld is filled in using welding rod. This technique is similar to gas welding. GTAW welding is slow, but it allows for a high degree of precision and the welding of exotic metals such as titanium. GMAW welding stands for gas metal arc welding, also known as MIG welding. Instead of a tungsten electrode and a separate filler rod the two are combined. A metal electrode is constantly fed out which both supports the electric arc and adds filler metal to the weld. Inert gas shields the weld and prevents contamination, as in GTAW welding. GMAW welding is fast as well as versatile. FCAW stands for flux cored arc welding. FCAW employs the same electrode feeding mechanism as GMAW welding, but instead of inert gas for shielding the welding wire contains flux, which when burned creates a shielding gas cloud around the weld.


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Make Sure That You Have Safety Measures In Position When Welding

Welding can fundamentally be described as the process of forcing or mixing two metals together to form one completed item. Typically welding machines are only used in workshops or in garages, but it is nevertheless essential to be extremely careful whenever using these machines as it is still possible to cause an injury as quickly as you can say “blend these two metals together”.

There are many varieties of welding machines available on the market and which type of machine you make use of will be determined by a number of factors. Should you have no electricity available at the location that you need to weld at you will want a welding machine that runs on an alternate form of energy. This can be by means of gasoline or petrol and is really the most suitable choice in remote places or when the electricity socket is just out of reach.

There is a very popular saying that we often use: If all else fails, read the manual. In the event you don’t have a lot of prior experience with welding machines, I would advise you to please pay no attention to this saying! Manufacturer’s instructions exist for a reason, make certain you study it properly before running a welding machine, or any piece of machinery for that matter, the first time!

All types of machinery should be properly taken care of and cleaned routinely. Welding machines are no exception to this rule. It is very important clean your machine after each use. This can be done with a steel brush plus some chemical substances – just make sure that the chemicals you want to use can actually be used on your specific device!

If you’ve ever observed while another individual is busy with welding, you’ll know that the process produces a lot of heat and you can often see sparks fly in the process. Because of this you must ensure that the area you weld in is adequately ventilated. Furthermore you should never operate any piece of equipment if you don’t have the essential safety measures in place. With regards to welding machines you also have to wear top quality safety equipment. This can include a helmet, gloves and protective eye gear. Don’t try and convince yourself that the job at hand will only take a matter of minutes and that all those safety precautions are pointless. Accidents can happen in a matter of just a few seconds!

It is also vitally important to have a ground cable that you should clamp to either your work-bench or directly to the items that you are welding. This will prevent damage to the machine due to overheating of the cables.

If you are not totally certain that you will succeed with the task at hand, do not hesitate to call in the help of a professional. This can even be a friend or family member with some welding experience. Do not attempt to be a super hero and end up (literally) burning your fingers along the way!

For more information on welding machines [http://www.goscorarc.co.za], go to [http://www.goscorarc.co.za]

Article Source: http://EzineArticles.com/5940753


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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.

Article Source: http://EzineArticles.com/2609407


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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.

Article Source: http://EzineArticles.com/9341628


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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.

For more info on arc welding machine and inverter welding machine visit weldingmachineindia.co.in