Posts Tagged ‘welder’

Setting up a welding shop: The basics

Wednesday, October 5th, 2011

Now that the economy has hit a low, and unemployment has risen, a lot of people or looking at alternative means of income. Granted, a lot of people will find new jobs somewhere, but others will be forced to create their own job by becoming a small business owner, and finding their “niche”. One of the “niche” areas that many people are finding wide open is the need for small welding shops in their area. Of course, many areas are served by large machine shops with $100.00 an hour rates plus materials. However, the average person may not find that a reasonable charge to repair a small household item or to have a small project fabricated, since a small project could easily run into the thousands of dollars. There is a clear need for small repair shops that can handle small jobs, without incurring the same kind of expense that a customer would find at a large machine shop. Some machine shops will actually turn down work if it doesn’t meet a minimum dollar amount. If you perceive a need in your area for a small shop that can customize small repairs, and engineer small projects for a customer, then you may be thinking about what you will need to get started.

Outside of the obvious need for a welder, you will need to see how many welding processes you can afford to have, and you must evaluate the space you have to have them. TIG welding is probably the most expensive process to have in your shop, but it is also the most lucrative, especially when it comes to welding aluminum. MIG of course seems to be the staple found in almost every welding shop. Stick, is the preferred choice for mobile repairs. A plasma cutter is popular for cutting metal, but is not a requirement for many small shops, as long as there is an Oxy/Acetylene setup available. Each process carries with it a demand for space, money, and skill. Be sure to evaluate which processes best fit your operation best in the early planning stages so that you can go after customers that have needs that you can fill with the processes you can provide.

Shop location is another consideration. In a rural setting a small welding shop may be a small pole barn or even a home garage. In more urban areas, it may be a small store front with a side roll up. Or even, the welding operation may be completely mobile with an Engine drive welder providing both welding power and electrical service to the job site. Whatever the location, or arrangement, a well equipped, convenient to access shop and operation is critical to having credibility. Keep in mind legal requirements for insurance, business license and applicable permits and general code requirements when in the planning stages as this will require a significant amount of capital that is often left out of the business budgets when it comes to writing a business plan and assigning an overhead cost to a shop location.

Well-equipped shops often bring customers back for more business. Even if you don’t have the money for the most expensive tools, used, or lower end welding and machining tools can suffice. If a customer goes into a shop and sees maybe one name brand welder, and an oxy acetylene torch, it may not convey a lot of confidence in the customer’s mind. Rather, most customers like to see a fully equipped shop with the expected pieces, like a band saw, chop saw, stationary grinder, hand held grinders, full length floor drill, jacks stands, welding table, small lathe, vises, clamps etc. Especially don’t forget the all important wrench sets, pry bars and hammer sets. As long as these work, name brand won’t be important to the customer. While it may not be possible to sink a chunk of change into all these at once, prioritize your purchases and leverage your buying power at estate sales, and discount tool places so that you can get the most shop “bling” for your money.

Overhead costs are the most manageable when they are in the planning stages. When you are planning for them, then, you are most likely to bid correctly. You may not win every bid, but having a realistic dollar figure for what it takes to operate the shop by the week or by the hour will save you a lot of heart ache and worry. Shorting yourself on bids by forgetting that monthly insurance premiums are due, and the need to upgrade equipment to finish a job won’t help you stay in business, though it may bring you a job you can’t afford to finish. This is never good and should be avoided if at all possible.

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How do I choose the right welder for me?

Monday, August 15th, 2011

If you’ve been thinking about buying a welder lately, then you’ve been giving some consideration to which is the best to suit your needs. If you are like most people, you may be confused by the wide array of welders on the market, and even likely by the terminology. You may be wondering what all those foreign sounding acronyms mean: SMAW,GTAW and GMAW. And you may hear terms like MIG, TIG or Stick thrown around…Without a point of reference these terms may just simply float by making your choice even more difficult and confusing. There are also many confusing numbers floating around out that with reference to welding. For example: ER6010, ER 70S-6, or even RG-60. Even the organizations surrounding and governing welding have a confusing array of Acronyms that they use. Ever hear of the AWS or the ASME? What does it mean to hold a certification, how do you get one and is it really important? Yes, there’s a lot to take in at the beginning, but after some of the confusing terms are sorted out, you’ll eventually be able to think your way through what type of welder you want for your next purchase. I’ll try to simplify and boil these down to the most basic and accurate definitions possible in the next few blogs for the most common welding terms. Hopefully you will be a more knowledgeable, informed and more comfortable purchaser. Even, though you may already know what type of welder you want and have many years of experience, there may be a thing or two you can still learn about welding and welders.

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Concentration as a key factor in welding:

Monday, June 27th, 2011

Have you ever imagined how the welding process actually works? Have you ever actually been involved in performing one? Do you aspire to become a professional welder? Firstly welding is a process or an art where two or more metal work pieces are joined together with the help of a molten solution which solidifies and forms a bond between them once it cools down. The process as such involves high electricity and intense heat transfer in order to generate the molten solution which is the basic essentially of joining.

Welding is a very easy process to learn and adapt to. It all comes down to mastering the art and making perfect joints which comes over a period of regular practice. The electrodes involved when touches the metal creates an arc which allows the molten solution to precisely hit the right areas to form a necessary bond. It is very important for us to control the arc in order to do so whatever is mentioned above. Thus concentration is indeed the key factor in performing perfect welding job. The more you concentrate the more control you can get in doing the job. Practice in deed makes a man perfect and efficient.

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Welding jobs

Friday, June 24th, 2011

There are many jobs for welders today. Welders can be employed for quick fixing as well as large scale projects. The type of work that is given to a welder depends on the welder himself. If he is experienced enough to take on large scale project then such a project will be awarded to him. On the other hand if he operates on a small scale equipment basis then he would be the quick fixer for cracks and repairs. All that is required is the right equipment and time to develop the right skill. When people start with small equipment they generally take on small sized projects. Working on several projects like these improves their skill as a welder and slowly they move on to bigger projects. This helps in growing skill as a welder as well as a professional that would help to ensure that jobs are always found for welders.

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How to get a welding job

Monday, June 20th, 2011

There are many ways by which you can land a welding job for yourself. If you are developing your career as a welder then you need to make sure that you do the right course and have the right certification to be a welder. You take up the various courses that are available in welding that will soon make you a certified welder. After that you can start to set up practice taking projects that come along your way. From small projects, as you gain experience, you will soon end up landing bigger projects that would help you grow in your welding career. Even if you do not want to do a course or a certification on welding you can always start out by taking up welding as your hobby. This will help you to practice welding in your free time and you can make the best use of the equipment that is available to you.

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Firecracker welding

Thursday, June 16th, 2011

A firecracker welding is a rare form of the shielded metal Arc Welding process. A butt weld is made use of in the form of welding. The electrode is stuck horizontal above the butt weld. The electric arc is then placed at one end of the electrode which would burn along the entire length of the electrode. The electrode is held in its place with the help of an adhesive tape or with the help of a copper block. Clamps can also be used to hold the electrode its place. There are many advantages for this form of welding. This process is semi automated. Also the equipment that is used is relatively cheap. The changing of the electrode is reduced which makes this process much faster than manual arc welding. Also this process can be applied in areas that are in accessible by normal welding process and there is very little actual skill that is involved in this form of welding.

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Concentration as a key factor in welding

Tuesday, June 7th, 2011

Have you ever imagined how the welding process actually works? Have you ever actually been involved in performing one? Do you aspire to become a professional welder? Firstly welding is a process or an art where two or more metal work pieces are joined together with the help of a molten solution which solidifies and forms a bond between them once it cools down. The process as such involves high electricity and intense heat transfer in order to generate the molten solution which is the basic essentiality of joining.

Welding is a very easy process to learn and adapt to. It all comes down to mastering the art and making perfect joints which comes over a period of regular practice. The electrodes involved when touches the metal creates an arc which allows the molten solution to precisely hit the right areas to form a necessary bond. It is very important for us to control the arc in order to do so whatever is mentioned above. Thus concentration is indeed the key factor in performing perfect welding job. The more you concentrate the more control you can get in doing the job. Practice in deed makes a man perfect and efficient.

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Ultra sonic welding

Friday, May 27th, 2011

This is a form of welding where the metals are joined without actually melting them. These are also known as solid state welding process. In this process, the metals to be welded are brought together under high pressure and strong vibrations are passed through the metals. Ultrasonic acoustic vibrations are applied to the metal locally which creates the weld between the two welds. This method is very effective in joining metals that are not similar. Also with the use of this method, there is no necessity of bolts, nails or adhesives necessary to hold the metal pieces together. A sonotrode is made use of in this form of welding. The sonotrode will apply the high frequency ultrasonic vibration that will cause the metal pieces to join together under high pressure. Due to the absorption of the vibrations, the thermoplast will melt locally causing a joining of the two metals. High pressure dispersion of the surface oxides can also be attributed to the joining of the metals.

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Power supply for welding

Friday, May 20th, 2011

Welding can be done using a DC power supply as well as an AC power supply. Each of these supplies has their own advantages and disadvantages. They are chosen based on the type of power supply that is available of the project that is undertaken. A stabilizer or a voltage regulator is used to keep the power supply that is needed for the welding operation constant. A stabilizer will step up the voltage if it is too low or brings the voltage down if it is too high. When using direct current, the electrode will only provide the arc and no the filler material. For shallow welds, a positively charged electrode is used and for deeper welds, a negatively charged electrode is used. The type of current t be used therefore is dependent on the welding project that is being undertaken. We should keep the availability of the power source as well as the metals involved in the process into consideration before proceeding with welding.

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Magnetic pulse welding

Thursday, May 19th, 2011

The magnetic pulse welding makes use of magnetic pulse to join to metal pieces together. This welding process makes use of the magnetic forces to drive two work pieces together under high pressure thereby creating a weld. This is mostly used to join two dissimilar metals together. However it should be kept in mind that these two metals are electrically conductive in nature and are not eddy current resistant. The metal to be weld is magnetically accelerated with the help of a conductive coil through with a powerful AC current is passed. This produces a secondary eddy current in the electrically conductive material and with the generation of Lorentz force, this material moves at a high impact trajectory. The base material on which the metal is to weld is kept in the trajectory path and this creates a high impact collision which leads to the formation of the weld. The weld that is formed in this method is a solid state weld.

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