Archive for April, 2010

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Speed of Travel for Shield Metal Arc Welding

Thursday, April 29th, 2010

One of the important things that you will have to see while performing a shield metal arc welding is the speed of travel. You will have to keep in mind that its importance as the appropriate travel speed creates a weld bead with the preferred contour or crown width as well as the neat look with perfect finish. You might have to fine-tune the travel speed so as to make the arc stay within the one-third of the weld pool.

When the travel speed is slow, it produces wide, turned in bead along with a shallow diffusion. On the other hand extremely high travel speed also decreases the penetration creating a thin or extremely crowned bead, as well as undercuts in a few cases.

Another tip to improve your welding is to always get a good view of the weld puddle. Or else you won’t be able to be sure that you are welding the joint. Keep your head off to the side f the smoke so that your sight doesn’t get disturbed.

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Posted in Arc Welding | 3 Comments »

The Multiple Uses of Stick Welder

Wednesday, April 28th, 2010

A stick welding is something that we can learn it so easily and is very much useful in a lot of places. Stick welding or the Shield metal arc welding is a manual arc welding process in which a consumable electrode coated in flux is used to make the weld on a surface.

DC welding will make the most benefit over AC for almost all the Stick applications, which includes trouble-free starts; less arc outages along with sticking; a smaller amount spatter or even neat looking welds, easier vertical up as well as overhead welding and you can also learn easier to weld, and a smoother arc.

In case of DC reverse polarity or the electrode positive offers about 10 % additional diffusion at a given amount of amperage when compared to AC, at the same time as DC straight polarity or the electrode negative welds that gives thinner metals, better the output.

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Posted in Stick Welding | 1 Comment »

Tips for Newbie MIG Welders

Tuesday, April 27th, 2010

The first thing you need to keep in your mind before you take the MIG Welder in your hand is think safety first. Be sure that you wear all safety equipments and safety gears so that you don’t hurt yourself during the process.

If you are teaching yourself then the best way to know tips about welding is by reading the user’s manual of your MIG welding machine properly or even browsing for good MIG welding videos on net. It’s always better to know the way out of problems before you get a bad experience form them by reading article of experts.

Remember that you can do MIG welding for steel, stainless, as well as aluminum, but when it comes to aluminum, you will have to fix a special adapter for it. Always never forget to use nozzle dip or anti-spatter spray so that you can keep the gun nozzle from getting blocked with spatter. If you are a hobby welder, then it good to use 0.035 in diameter wire.

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Posted in Mig Welding | No Comments »

Tips To Maintain Plasma Cutter Torches

Monday, April 26th, 2010

When you need a perfect cut, it can be easily attained with the help of a plasma cutter, but when you are a newbie, then you will have to follow some tips until you get used to the whole process properly. If you like to get the best cut and not waste a good piece of metal then follow a set of plasma cutting tips to save your metal as well as the plasma cutter machine.

A common tip for people applying O-ring lubricant is to use only needed amount so that you can see enough shine on the O-ring. It is important that you will have to remove the shields before adding anti-spatter compounds on it.

All you have to remember is that a lot of both materials will dirty the torch, which will result it early torch failures. Same way, grease or other any other such lubricants must not be applied to torches, this will again give problems to torch, as torch don’t need any lubrication. On the other hand, lubricants are good conductors of electricity and this can again damage the torch.

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Posted in Plasma Cutters | 2 Comments »

Uses of commercial welders in the industry

Friday, April 23rd, 2010

Does the term commercial welder sound new to you? Though the term is not popular, you all must know what commercial welders are. They can be electric welders, spot welders, gas welders as well as MIG or TIG welders. The commercial welders are of great use in the industrial sector for completing required weld on various jobs. The finished weld that comes after the welding process strengthens the products produced in the industrial sectors.

Commercial welders have increased the productivity in many companies. The welding processes have found to be cost effective in large terms and also the final outcome is of high quality. The welders are also capable of handling extreme production expectations. The portable welders make it possible for the companies to weld out in the outdoors or away from the industrial outlets.

Yet another interesting feature of the MIG, TIG or spot welders is their capacity to operate in various electrical sources. The commercial welders are in three phase option where as their counterparts i.e. residential welders are in one phase option. Due to the three phase option, the welding is completed in a quicker time. This would be a relief for the industries that are based on field fabricating or repairing various equipments.

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Posted in Welders | 1 Comment »

Pipe welding; uses and safety tips

Wednesday, April 21st, 2010

Are you going to do plumbing at your home? Then it would be imperative that you would be welding sections of pipe together. The process of welding is an effective method for joining sections of pipes to be used in plumbing as it reduces snags in flow and gives a strong pipe that would remain for many years. Keep in mind certain tips for making the entire experience go smoothly.

Safety should be the first and foremost concern for you. Wear a proper protective specs and skin protection gears so that you are safe from the rays. Make sure the welding area is properly ventilated as the heat from a pipe can even start a fire. The noise from the welding machine can damage your hearing so protect your ears properly.

While handling the welder, you would be feeding a tungsten electrode through a welding torch and use it to melt the filling material. This will result in the metals joining together. The welding torch should be at a 45 degree angle to the surface of what you are welding. It is important to note that the tungsten should not touch the surface as that would contaminate it. If a ball is formed on the end of the tungsten, it indicates that the welding is not working.

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Posted in Welders | 20 Comments »

Why CNC shape cutting machines are so expensive?

Tuesday, April 20th, 2010

Nearly all other manufacturer industrial CNC shape cutting board builds them to be weighty store equipment! This is entirely unnecessary, as there is no physical contact between the torch and the substance being cut.

They also sell CNC plasma cutters during their own sales force, and in turn, through a network of distributors, each with limited province. This need to sustain a legion of salesmen and middlemen almost certainly doubles again the cost of bringing their machinery to market.

The reasonable prices of our Torch mate CNC cutting machines is the effect of clever design, addition with your existing individual computer, and Internet marketing, which many big companies have been slow to clutch. Couple computerized processing of shapes with big savings on plasma cutter consumables and your cost per cut part drops fundamentally. Utilize oxy-fuel for flame cutting thicker steel. The metal art outline shown here are usually cut using plasma in steel 1/8″ or 3/16″ thick. The similar is accurate of western art and backyard art, which are basically metal art with a theme.

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Posted in Plasma Cutters | 1 Comment »

Two Basic Mistakes Of MIG Welding

Saturday, April 17th, 2010

When it comes to MIG Welding, the two main mistakes a lot of beginners do is the stickout problem, and the ground problem. There is nothing like you can not rectify a welding mistake that you do, it is always advisable to be careful with the gas type, gas shielded or flux core, size and type of wire that you choose for your welding.

The first mistake anyone does is when there is a bad ground. This problem happens when your wire feeder doesn’t suit with the ground and resulting in pumping wire. The best solution to offer in thin case is to better go for a good ground clamp or try using a piece of copper to glide under one of the jaws. Try grinding a small area clean and then attach the clamp in that spot. You will se that your MIG welding is way better than normal.

The second mistake is the Stickout problem. This problem happens when the stick out distance is too much. A half an inch of stickout is ideal for a perfect MIG Welding

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Posted in Mig Welding | 1 Comment »

Tip to Avoid Problems in Plasma Cutting

Thursday, April 15th, 2010

Plasma cutting is one of the most efficient and easy ways to cut a metal of any thickness neatly just like how you must have calculated. The finish and the satisfaction that you get while you work with the help of a Plasma Cutter are simply amazing. Here is a few tips to help you avoid a few common mistakes done while performing Plasma cutting.

One of the important things that you can do is to replace the consumable parts in your plasma cutter regularly. While you replace these consumable parts you can easily avoid the uncontrolled arcing in the plasma chamber. Uncontrolled arcing is something that causes torch failure.

Even simpler way is to try getting a Plasma cutter that has less number of such consumable parts in them. You have a lot of models in which these consumables are more so, it’s better to avoid buying a Plasma Cutter with more consumable parts if you plan to buy anew machine or exchange it.

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Posted in Plasma Cutters | 1 Comment »

How To Choose A Good Plasma Cutter?

Wednesday, April 14th, 2010

Until and unless you plan to buy a plasma cutting machine for yourself, you won’t be aware of the different products that are available in the market. Everything might sound useful and interesting but getting to choose the one that is suitable for you need a lot of patience and deep analysis coz, investing on a wrong machine can screw your happiness.

The best thing you can do to make things work better is to prepare a check list and find if all these are fine in the products that you are checking for.

Check for how long in a day do you want to use the plasma cutter. Next decide up on the kind of electrical service you get for using the plasma cutter. Decide on the portability of the machine and other such kind of criteria that your new machine has to fill. And last but not the least, your budget limitations that you would touch to get a real good plasma cutting machine.

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Posted in Plasma Cutters | 1 Comment »

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