The specs of ‘Hobart 500500 Handler 140 115-Volt 25-to-140 Amp Gas/Metal/Arc Single-Phase Wire Welding Package’ are:

• Manufacturer: Hobart
• Product Dimensions: 32.5×20.7×11.2 inches
• Shipping Weight: 66.5 pounds

Here are some REAL customer reviews:

“A good little welder”

I bought this machine (Hobart Handler 140) more than a year ago and have put it through its paces. It comes with the regulator, switch and hose so you only need the tank. Of course you can use flux core without the tank. Remember that you can get away…Read more

“Exceeds expectations”

” steel using .035 wire and 25/75 argon/co2 mix, 5/32″ cast aluminum using .035 aluminum wire with 100% argon, (repaired Webber gas grill cover hinge that broke in a gale: Saved a pretty penny!), 24 gauge…Read more

“Hobart 140 Mig Welder”

Great little welder, which I used primarily for autobody panels. Lots of heat, gas valve and regulators work well. Price was unbeatable when compared with a Lincoln or Miller available at big box stores. With free delivery what could be better?Read more

Hobart welders are a well respected brand that have been tried and tested over may years in both home use and heavy industry. The quality and reliability of the hobart handler 140 welder will ensure many years of accurate welding.

Get Hobart 500500 Handler 140 115-Volt 25-to-140 Amp Gas/Metal/Arc Single-Phase Wire Welding Package at the best price available today.

The Original Post is Located Here: Hobart Handler 140 Review

Mig Welding Employment

If you seek employment, learning how to use a mig welder gives you  skills to open many new doors for you. There is a constant demand for semi skilled and skilled welders in fields such as production work, light and heavy engineering. Then there is the big money welder jobs in the oil and mineral industries. Once you learn Mig welding you also have the opportunity to start your own business. You could start out working from home making small items of furniture to sell at your local markets, over time your name will get around and you will find you will get as much work that you want.

Mig welding is commonly referred to as gas metal arc welding (GMAW), this type of welding is today the most popular and versatile method of welding. It is used in production and maintenance work and can be applied to heavy engineering, light engineering and construction work to auto body work. For example production line robotic welders in auto manufacture are Mig welders. Mig welding is perfect for day to day factory work as well as being ideal for the home or small workshop.

To get going fast with mig welding see our learn How to Weld Tutorial page.

Mig welding uses a power source and a wire feeder that feeds the wire electrode through the welding gun to the weld. The wire feed consists of a set of drive wheels for the wire and a constant speed motor to turn the drive wheels. The wire electrode comes in various coil sizes, or spools depending on the welds to be performed. These spools can be mild steel, stainless steel or aluminum in accordance to the job, and can contain hundreds and even thousands of feet/meters of wire. Most Welding machines have various functions allowing timed feeds and variable speeds.

The wire is feed through a cable that also contains a shielding gas hose and allows the electrode to run smoothly without bending or kinking. The shielding gas, or inert gas protects the weld from contamination during the welding process. Welding wires can differ with solid wires used for aluminum, stainless steel and mild steel, but also flux cored wires are also used for use on heavy steelwork.. A gasless wire is available for mild steel, this is useful in outdoor or on site situations where a gas bottle is impractical or breezes are a concern by blowing away any protective gases.

Inert gasses are gasses that will not react with metals or other gasses. With mig welding Inert gases are used to create a protective bubble around the arc and molten metal while the welding is being done. This gas is generally pure argon gas for aluminum and argon sheilding gas for mild steel applications.

Mig welding can be used to weld steel, stainless steel and aluminum , all requires slightly different gasses welding wires, and amperage settings. and due to the work requirements the heavier the metal being welded the more powerful welding machine needs to be.

For home mig welders a machine rated between 140 and 220 amps is most likely the best choice. This would allow working on metal thicknesses from 1/16″ up to 1/4″ including pipes, tubes, flat bar, round bar, angle iron, sheet metals and square hollow sections.

The Original Post is Located Here: How To Use A Mig Welder

Hot gas plastic welding is sort of a dead ringer for gas welding, nevertheless it employs lower temperatures. A specific gun produces hot air by using a feed for plastic, which makes the parts to melt and join them together. Its important for the plastic welding materials to hold similar chemistry. The technique is normally utilized for the manufacture of plumbers fittings, big chemical tanks, as well as heat exchangers, etc.

Contact Plastic Welding
In this process, the parts to become welded are placed together as well as the heated tips to punch them, melt, and join them together. It is similar to the spot welding process; however, electric conduction is replaced together with all the puncher tips to perform the overall task.

Hot Plate welding

In this strategy, a great platen employed to melt the parts to get welded, when the two parts are held inside the nests attached to two anvils placed opposite one another. The recent platen is allowed to move between both parts. The two parts are pressed at the platen and kept for example until the plastic welding materials melt, after which the platen is removed, and parts are pressed together to create a permanent joint.

High frequency welding

High frequency electromagnetic waves are increasingly being employed in this process, as certain plastics having chemical dipoles could possibly be heated with these waves. This can be one of the special variants of plastic welding and has very specific applications.

Ultrasonic welding

In this method, high frequency sound waves are utilized in ultrasonic welding to melt the parts to become welded.

Friction welding

In Friction welding, otherwise known as vibration welding, the parts are made to produce friction between them, and the effect of vibration between clamping along with the parts do the plastic welding causing material to melt, resulting in a weld.

Spin welding

The process involves holding a component stationary as well as the second kind to spin on part to be welded with high velocity and pressure, and hence making a weld.

Laser welding

In this process parts are pressurised even if a laser beam is passing through. The parts that will have to be welded will be needed to be translucent and opaque which has a difference in their opacity.

Solvent Welding

This technique uses a solvent to dissolve the polymers temporarily, for, the polymer chains become free to move and might be made to entangle with other dissolved polymer.

Fields of making use of Plastic Welding Some of many zones of application are provided below, nevertheless the technique could be used in various other fields also.

• Assembly welding for mass produced domestic appliances

• Fabrication welding of pipelines

• High speed seam welding of films and garments

• Precision welding of medical devices

The Original Post is Located Here: Plastic Welding

Eye Protection.

Without a welding helmet you will destroy your eyesight very quickly. Modern welding helmets with auto darkening lenses have greatly improved the likely-hood of arc flash and allows the welding operator to see exactly where the weld is to be started.

Of course auto darkening welding helmets vary in quality. Although when using auto darken helmets the transition to darkening after striking a weld is virtually instant, there is a time delay that is not noticed. Poorer quality weld helmets are slower to initiate the darkening process even though it may seem instant. We are only talking micro seconds here but can be enough to eventually effect eyesight. Always buy the best welding safety gear you can afford.

Safety glasses should also be worn under your weld helmet, sparks can enter the helmet, bounce around and penetrate the eye. If you’ve ever had a spark in the eye you will know that the removal and healing process is no fun.

Welding gloves.

For heavy welding long leather welding gloves are essential and again should be of high quality. Tig welding requires the use of a smaller shorter glove but something that is more ply-able. Tig gloves are available is soft cow-hide that are ideal.

Welders Jackets

Welding jackets an be obtained in full cow hide leather either long or in a jacket style. While they can be cumbersome and hot in warm weather they wll protect from burns and sparks without doubt. Not so essential for any light down-hand welding but for heavy work, vertical and over head welding a welding jacket is a must.

Other welding safety geay available to the welding profession are leather welding aprons, skull caps and leather boot guards. All offer all round protection from welding sparks, molten metal blobs, arc welding slag and grinding sparks and should be worn on a daily basis.

Welding boots.

Typically welding boots are leather and will have a steel toe-cap. Modern safety boots have a composite material that has similar strength as steel but will be much lighter, insulating and not magnetic. Soles are protected by APT textile plates (Anti Perforation Textile) that gives great flexibility as well as warmth and lightness. look for boots that have soles capable of withstanding 300 degrees C

The Original Post is Located Here: Welding Safety Gear

Through the welding process sparks and components of slag can scatter approximately 40 feet from the patch of welding. This may cause damage to people and foster a source of fire hazard. In the welding shop you build a metal table to do your welding on and avoid wood or other materials that may catch fire. The welding shop ought to be enduring an area that could be well ventilated. Welding can make dangerous gases that should be faraway from the space and smoke also. Also, bright overhead light is recommended to be set up and aimed your own welding table. In case your auto shop also has an extra room with cinder block walls as well as a concrete floor, you are now in luck. This can make a perfect spot for your welding shop. You ought to avoid any surface that could be damaged or turned towards fire by sparks and hot slag.

Once you have your room create correctly, various tools and equipment will be needed plus your welding accessories. Diy equipment say for example reciprocating saw, angle grinder, portable band saw, plus a chop saw will come in handy whilst on your welding projects. An angle grinder is ideal for removing excess slag and cleaning up rough edges on metal. Specific tools for working on metal will certainly be needed as well. This also includes metal brakes and metal benders that have been available for every size of metal. Other suggested tools are magnetic clamp, center punch, metal file, C-clamp, corner clamp, cold chisel, ball peen hammer plus a hacksaw. This not a complete list but is often a very good starting point. The good list of tools you could use in welding is sort of endless and you’ll constantly discover new tools that you’ll want because you be advanced inside the art of welding.

Setting up your welding shop is really about logic more than technical know how. Those new to welding are quick to forget about the extreme temperatures needed within a welding process and as such never realize the fire hazard of your welding area. Should you be well-versed, it really is fairly obvious that carpet in the welding shop is not really a good suggestion. An outstanding welding shop not exclusively protects the welder and assists in good welding but it protects another people in the auto shop by not exposing them to hot sparks and blinding light.

The Original Post is Located Here: Setting Up A Welding Shop

As Micro welding is a state of the art process that is used for welding small areas. Often the micro weld requires the surrounding area to be minimally effected by heat, requiring precise heating of the weld to only allow proper fusion of the joint.

Micro welding requires the use of miniature TIG welding equipment (Gas Tungsten Arc) that is not much larger than a pen. Micro TIG welding is the latest in tool welding technology. Micro TIG offers superior control of weld placement while maintaining structural integrity with less residual stress.

Utilizing the assistance of arc micro welding it is possible to restore components which are challenging to weld; put together very small parts in to complicated structures , tools involving high alloy material and also repair of costly molds.

Other methods of micro welding utilize lasers. Micro laser welding makes use of tiny solid-state options possessing fractional energy to accomplish the job. Nonetheless, applications which can be incorporated into automated procedures tend to be the most suitable applications for laser micro welding. This style of minuscule welding additionally produces some of the very best qualities for welded joints

The Original Post is Located Here: Micro Welding

The Oxy-Acetylene Welding process requires the use of a special welding torch that mixes oxygen and acetylene gasses that can produce a small intense flame heat of up to 6300 degrees. This temperature is more than twice the melting point of most metals.

This process has been widely used in the past for the manufacture of wrought iron projects such as iron gates and fences. These methods have widely been superseded by the introduction of electric arc welding.

Today Oxy acetylene welding is generally restricted to industries that work with copper pipe and the joining of copper and brass. Other specialized applications include such as building up of brass wear plates and the welding of cast iron housings that may be cracked using brass or bronze rods as a filler.

Gas Cutting Using Oxy-Acetylene.

Most gas torches include a function for gas cutting. This is in the form of a lever style valve that allows an extra burst of oxygen through the cutting torch to the work that has been heated to melting point.
This injection of oxygen to the work causes the parent metal to burn away with great force and speed, producing a small narrow cut in the metal.

Using this method has allowed metals to be cut easily either manually or by machines called profile cutters. Gas cutting manually can easily cut metals of 1/16 of an inch and up to two inches where as profile cutting can cut steels up to four inches thick.

Many profile cutting machines now use LPG gas instead of acetylene as the flame and cut produced is cleaner. Propane torches for auto and manual cutting are constructed differently to acetylene torches and also require different cutting tips

Welding Rods

When choosing welding rods try to avoid buying inferior quality as the better your grade of material in the welding rod the better the end result will be.

Your welding rod is used to lay over additional metal to the weld therefore it needs to match the parent metal. If the metals are dissimilar then best efforts to locate a filler rod comprising of a composition of the two metals. For example if welding manganese, or nickel specific welding rods of specific alloys are recommended.

Welding wire and Oxy-Acetylene Welding rods are most always of Norway steel. This grade is most pure and gives a sound soft weld especially suited to machining if required. When welding aluminium the proper rod is most important as aluminium is difficult to weld and requires alloyed rods to ensure even flowing.

The Original Post is Located Here: Oxy-Acetylene Welding

Brazing can be used to the various possibilities it supports. For example, you can use it as manually operated torch brazing when the torch will be hand-held to make a excellent joint involving the materials it’s applied to. In contrast producers can make use of machines torch brazing if they require recurring brazing carried out while not having to tie up any specific welder for extended amounts of time. Then there’s the automated torch brazing technique that totally removes the requirement of utilizing manual labour with the brazing procedure.

Silver brazing utilizes filler based on the silver material comprising materials for example gold, zinc, copper, as well as cadmium. This technique can be used in most cases within the tool community in which tips of tools tend to be attached using hard-metal. This is particularly helpful if utilized in those tools as saw blades.

Braze welding implementes brass as well as bronze filler rods which are covered by flux whenever joining work items made from metal. The apparatus employed for this kind of welding is similar for that found in brazing. Because the requirement of this kind of welding is made for greater temperature, acetylene or methylacetylene-propadiene gas MPS) is frequently utilized to achieve this. This system is especially appealing to a few since the metal isn’t melted throughout the procedure and for that reason every part maintain their particular edges, forms, and curves without getting altered or eroded.

Cast iron brazing employs nickel or cast iron rods whenever accessible and it is frequently utilized to inbed copper wire in to tube in order to conduct energy to avoid freezing in the course of inclement weather conditions. Vacuum brazing metals is yet another approach to welding that’s really clean, good quality and helps to create flux-free joints which are robust and still have remarkable integrity.

Dip brazing is actually suited with regard to brazing aluminium simply because that oxygen is not really utilised that helps prevent oxides by developing. Within this kind, the various components tend to be put together and a brazing is usually applied in a slurry, then this complete product will be dropped in to a molten sodium bath that works as a heat transfer channel plus flux.

Furnace brazing metals is yet another approach that’s frequently utilized but it’s only semi-automatic in kind, however frequently employed within manufacturing environments. There are a variety of advantages for making use of this technique particularly when dealing with mass manufacture of products. It is especially good for working by using great amounts of smaller sized components that may be jigged very easily.

The Original Post is Located Here: Brazing Metals – The Basics

Tungsten inert gas welding, or TIG welding, is additionally referred to as GTAW, or simply gas tungsten arc welding. Whilst much like gas welding. This utilizes a tungsten electrode to produce the actual arc as well as heat for your weld.

The advantages to utilizing TIG welding will be it can easily be employed to weld much more types of metals as well as alloys. You will get thoroughly clean welds. You won’t get spatter or messy welds that require cleanup by grinding. Tig welding produces an excellent robust, clean, plus neat and tidy weld.

Before starting welding you need to make sure that you take all the proper safety precautions. You need to have a good quality welding mask preferably for tig welding. The light given off by arc welding is enough to burn your eyes, and it can burn your skin, like a sunburn. Make sure that you are wearing leather gloves and a leather welding jacket to protect your arms and neck. Make sure that your jacket fastens all the way up to your neck. You want to wear heavy cotton shirts and trousers. You also need to wear heavy closed shoes. You should have a welding screen and warning sign so others can avoid the area, and you need to make sure it’s well ventilated.

Once you have set up all the safety precautions, it’s time for you to get down to welding. Before you can do any welding you need to make sure that you have the right electrode. Different metals need different tungsten electrodes. Grind the electrode down so that it has a nice point. When you are welding that point will get worn down to a rounded tip. A pointed electrode tip gives you a better weld. It will be smaller and more directed.

Make sure to grind away from you so you don’t contaminate the electrode. After you grind the tip, you need to put the electrode in the right holder. Then you choose the right settings on the welding machine. Different metals need different settings. Check your manual for the right settings.

Clean your metal and your table. That will give you the best welds. Clamp your metals down to your table so they don’t move when you are welding.

To start a weld keep the tip about an inch from your metal. You don’t want the tungsten tip to actually touch the metal. You want to heat your metal quickly so you can start the weld pool from the arc created.  Use the electrode to create a weld pool then add filler material as required.

The way you weld depends on what metal you are welding. After you finish your weld you might want to grind it down, depending on if it is going to be seen or not. That will also give you the chance to check your weld to make sure that there are no holes or gaps.

It may take some practice to get good welds, but don’t be discouraged. Once you have it, you can weld just about anything.

The Original Post is Located Here: Tig Welding Basics

There are various types of welders  but there is one in particular which is used much more than others. One of the most used welders  is the MIG welder which unlike many other types is a wire feed welding machine. This is in contrast to welding methods that make use of a stick or electrode, and it is generally much more efficient for general purpose welding.

When looking for a MIG welder you will generally hear it called by a number of different names and sometimes it can be difficult to tell exactly what it is you are purchasing. That being the case, take this list into consideration when you are looking for a MIG welder, and remember that a MIG welder by any other name is still a MIG welder:

• Metal Inert Gas (MIG)
• Metal In Gas
• Gasless Mig Welder
• Wire Feed Welder
• Mas Metal Arc Welding

Process Notes

Throughout the welding process the weld puddle will be shielded by a gas known as the Inert Gas or Active Gas. It is possible to use a wire without a shielding gas, and this process will be known as Gas-less wire Welding. Argon Gas is the most common type of shielding gas used in because it does not have any reaction to the MIG welding process and is therefore safe to use.

Gas-less MIG welders are normally only used by home users who operate outside on a regular basis. Note however that these can also be used on job sites and other outdoor locales. The benefit of using a gas-less MIG setup  is that one would not need to worry about wind blowing the shielding gas aside and creating a hazard during the welding process.

Uses

MIG Welders can be used for a number of different applications. For instance you will find that they are used in both the professional and personal circles for virtually any project. From professional vehicle plants to the garage where you are working with wrought iron, these types of welder have a home anywhere.

Power Requirements

Meeting power requirements for the purpose of a MIG welder is not difficult so long as your working area meets the standards.

Power Approximations:

Single Phase MIG Welder: 230-250 Volts

Three-Phase MIG Welder: 400-420 Volts

The power outlet for a MIG welder will need to be considerably bigger than your standard outlet. This of course is to handle the start up current, or that initial power surge as you activate the device. Note that industrial machines will create a larger power surge, and there is a strong chance that you have seen these outlets on several other devices around the house. The majority of standard house plugs will not have the amperage to handle a MIG welder which means you will need to seek out higher amperages. If you are not an experienced electrician it would be in your best interest to call on professional help.

The Original Post is Located Here: Types of Mig Welders