Archive for September, 2010
Thursday, September 30th, 2010
Aluminum welding is easier than welding steel. Several methods are used in joining aluminum via welding: mig welding, tig welding and using a stick electrode. MIG welding is a process that will require some post-weld touchups for a presentable finish. Mig welding uses an electrode of continually fed wire forming the base of the welds, which is also shielded by an inert gas or gas mixture. While using aluminum for mig welding, it is considered somewhat messy because you’ll need to use the spray transfer method in which the arc creates a spray of tiny metal beads.
TIG Welding does not require must post-weld clean up and finishing, and is therefore ideally suited to quick and easy welding of aluminum. Rather than using a fed-wire electrode, tig welding uses a permanent tungsten electrode that is not consumed by the welding process. You have to add any filler metal manually, making this process best suited to joints that can be achieved without additional metal.
Tags: aluminum welders, Aluminum Welding, TIG welding, welding, weldings
Posted in Aluminum Welding | No Comments »
Wednesday, September 29th, 2010
Stick welding is the most popular welding process because of its versatility and its simplicity. It is a manual arc welding process that uses a consumable electrode and it is extensively used in steel structures and industrial fabrication. It is the most dominant welding process that is used to weld iron and steels, but other metals such as aluminum, nickel can also be welded. Stick welding gain its popularity from 1960s and the manual welding uses different flux coatings designed to work with specific types of steel and welding applications. This is called as manual welding because it requires the operator to handle the torch.
The choice of electrode for SMAW depends on a number of factors, including the weld material, welding position and the desired weld properties. Manual welding uses different flux coatings designed to work with specific types of steel and welding applications. Stick welding is the choice to weld stainless steel and this method of welding utilizes equipment that is typically the least expensive. The stick welding will require the weldor to remove the slag residue from the cooled weld by chipping it away with a hammer and cleaning it with a wire brush.
Tags: Stick Welders, stick welding, stick welding process, Welders
Posted in Stick Welding | 1 Comment »
Tuesday, September 28th, 2010
Generators are used to convert mechanical energy into electrical energy in the electricity generation. A diesel generator converts the energy stored in diesel fuel to the electrical energy and it is also called as an alternator because it generates electrical energy. Most diesel generators also include a feedback system from the generator to the diesel engine to control the amount of power produced. If there is an increased electrical load, for example, the feedback system can increase the rate at which diesel fuel is supplied to the engine. With more fuel available, the engine can spin the attached shaft faster, thereby increasing the rate of relative motion between the magnets and conductors in the generator, and producing more electrical power.
A portable diesel generator will cost a little more than a traditional gasoline powered model. For homeowners, portable generators are a great way to keep the household running when the supply of electric current fails for some reason. Businesses can also benefit from keep a portable gas generator or two on hand. Most office networks include a short period of backup power to prevent systems from crashing when a power outage occurs.
Tags: diesel engine, diesel generator, Diesel Generators, Generators, portable Diesel Generators
Posted in Generators | No Comments »
Monday, September 27th, 2010
DC welding is considered best for stick applications due to following reasons:
• Easy to start
• Less spatter
• Easy vertical up and overhead welding
• DC provides 10 percent more penetration at a given amperage than AC
• DC welds thinner metals better
A 225 to 300 amp welding machine handles almost anything the average person will encounter, as most stick welding procedures require 200 amps or less. Duty cycle is the number of minutes out of a 10 minute cycle a welder can operate. Duty cycle and amperage are inversely proportional. The type of rod that is used for welding are hard facing rods as it can provide resistance, abrasion resistance or both depending on the application. Stick welding is more forgiving on unclean conditions, but it never hurts to clean parts with a wire brush or grind off excess rust. If you prepare well and have average welding ability, you can make a sound weld.
Tags: stick welder, Stick Welders, stick welding, stick welding process
Posted in Stick Welding | No Comments »
Friday, September 24th, 2010
Safety First:
When welding aluminum, wear all needed safety equipments. You should wear gloves, goggles, hearing protection and a heavy apron so that you can protect your body from spatters. Wear eye protection equipment to protect your eyes from ultraviolet rays. Make sure your work area is well ventilated so that fumes can be removed when welding. For precaution purpose, keep your face away from fumes as far as possible.
Material preparation:
• Clean away all the lubricants.
• Remove aluminum oxide from the surface of the metal with the help of a metal brush.
• Do not use a brush that is used in other materials.
• While pre-heating is not compulsory, if you’re welding two pieces of different gauge aluminum, pre-heating can help prevent some problems.
• While pre-heating aluminum, it should not exceed 230 degrees F.
Tags: aluminum welders, Aluminum Welding, welder, Welders, welding, welding aluminum, weldings
Posted in Aluminum Welding | 2 Comments »
Thursday, September 23rd, 2010
For arc welding, a welder should choose the right welding equipments. Choose one based on your needs, has right features and comes in your budget. If you choose right arc welding equipment you can complete all your jobs properly and on time. Below are certain points that can help you in buying the right equipment.
• For outdoor projects, buy flux core type of welding equipment. It’s portable and protects cooling metal even in stronger winds.
• Use gas metal welder for indoor work. It produces less splatter.
• When you’re buying a arc welder, make sure it has a seal of approval either from National Electric Manufacturers association or underwriters laboratory.
Design Features:
• It is important to find out the thickness of metal before welding. A 90 amp welder can weld a metal which has 2.0mm thickness. For a very thin metal, a 25 amp welder would be best.
• Always buy a welding equipment that has correct amperage for the metal.
• Always select a welder that has trigger.
Tags: AC & DC Arc welders, Arc Welder, arc welders, arc welding, Welders, welding equipment
Posted in Arc Welding | No Comments »
Wednesday, September 22nd, 2010
A welder is a machine or welding equipment that the weldor makes to weld and different types of welder machines are available for different types of welding process. Mig welding that is also called as gas metal arc welding use the mig welder for its process. Cost and budget is important when buying the mig welder and it is of your choice to buy the welders. The different types of mig welder available are used mig welders, cheap mig welder, reconditioned mig welder and more. Before buying the mig welders for sale, be sure that your work location can accommodate it. Compare the duty cycles, its features, warranties and depending upon your requirement choose the welder. If you want 250 amps constant output use 200 welder or of you want 250 amps output choose 250 welder. Similarly there are also 160 welders, 135 welders and more depending upon the requirements.
Tags: MIG, MIG Welder, MIG welders, Mig Welding Machine, mig weldings
Posted in Mig Welding | 1 Comment »
Tuesday, September 21st, 2010
Inverter welders are the hot item on the body shop and inverter welders enable to use More power output from the same power supply. The inverter technology, on the other Hand, uses electronic components to produce higher frequencies into the transformer. These components give benefits such as lower weight, higher energy efficiency and most of all, it enables a higher control of the welding process. Repair of high crash performance cars designed with advanced high strength steel, needs Spot welders which can provide high quality welds. The inverter welder makes the welding much more convenient and you won’t need to use an industrial generator.
It also makes welding more efficient since the total power costs will be lower. As a bonus, an inverter welder is also more tolerant of dirty power from generators than conventional welders which can lead to fewer bad welds and less time per job. You can often carry one around like a light suitcase instead of rolling a heavy conventional unit. This also helps you get into smaller spaces where a conventional welder could be cumbersome or even impossible to fit. The inverter welders are dramatically smaller and consume low power.
Tags: inverter welder, spot welder, welder, Welders, welding, weldings
Posted in Welders | No Comments »
Monday, September 20th, 2010
Equipment is a tool and it is a thing that you need for a particular job or activity and it is also a process of providing something that someone needs. Welding equipments include the welding products such as mig welder, tig welder, arc welder, plasma cutting equipment and wire welders. If you see the history of welding, the welding equipment used in those days were heavy weighted and not technologically developed and it consumes more power and space. But, today the welding products introduced are the portable welder and a compatible one that performs multi function process. And also you don’t need to run for more wires and you can weld all types of metals by just adding an optional spool gun. The welders are of inverter type with more advantages and exist in different types and series. 225 welder, 200 welder, 175 welder and 145 welder are the different types of welder machines with different rated output amps.
Tags: MIG Welder, TIG Welders, welder, Welders, Welding Equipments, weldings
Posted in Welder Accessories | No Comments »
Friday, September 17th, 2010
Tig welding which is also called as gas tungsten arc welding produce clean precise weld on any metals. Tig welding is used to weld stainless steel, copper alloys, magnesium and aluminum. Higher quality and stronger weld made this welding process a little comparative than other welding processes such as mig welding and arc welding. Tig welding is in practice from 1941 and it utilizes a non consumable electrode called tungsten electrode. Aerospace industry and automobile industry use this welding technology and it welds more metal than any other process.
There are several different types of joints are used with TIG welding and it includes butt joint, lap joint, corner joint and t-joint. The butt joint can be welded without the assistance of a filler rod and two pieces of metal are joined together. Aluminum is the metal that is associated most frequently with tig welding.
Tags: TIG, TIG weld, TIG Welder, TIG Welders, TIG welding, Tig Welding Machine
Posted in Tig Welding | 1 Comment »
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