Get to Know the Certified TIG Welding Company that is Nadcap Accredited in California

Escapes – this is how businesses call product defects that has been sent out of the production process,Nadcap Accredited those that are NOT SUPPOSED to be sent out to customers. They mean trouble for a lot of businesses. Just imagine all the after-sale repair this will cost, when in fact, these should be avoided and prevented as early as soon as they are detected in the process!

Escapes may not be that much of a big deal for regularly priced goods and necessities that we buy over the counter, but it’s a totally different case when we talk about aerospace escapes. Escapes related to airplanes and their accessory equipment should be taken seriously. If not identified at the earliest time possible, escapes can cause major casualties, including people’s lives. These flawed parts may be attached to commercialized planes without anyone recognizing them to be defective. Have we not heard enough from the news on the many airline crashes and fatalities caused by faulty engines, hydraulic fittings or fuel lines have been? If you still can’t grasp how BIG the expense can be for these escapes, there was one instance when 20,000 parts were improperly processed, thus, had to be recalled at a staggering cost of $20,000,000! Imagine how much loss that is!

As quoted by Chet Date, Director of Quality Systems & Regulatory Compliance at Honeywell Aerospace: “Escapes are a serious issue for the aerospace industry. Recalls are costly and problematic as aircraft are complex machinery operating in a challenging environment. It is vital that non-compliant aerospace parts are identified and communicated as quickly as possible to prevent serious accidents.” As an additional statistic, 9 out of 10 aerospace manufacturers risk serious defects. This is very alarming in today’s fast-paced lifestyles where travel around big distances is just a plane ride away.

The aerospace industry needs welders to weld critical component parts. Of course, welders are expected to know a wide range of welding skills but how are companies who hire welders assured of the quality of work done? Here now comes the need for CREDIBLE CERTIFICATION that you should look for in a welder. How specialized are aircraft’s when it comes to welding? Very specialized to a point where aerospace welding involves microscopes. It is not your typical kind of welding with sparks and big welders! Because of these risks, Primes like Boeing, Airbus, Gulfstream and their sub-tiers only use vendors that are Nadcap Accredited or Approved in addition to the high-skill level that the task needs.

What is Nadcap?

This is an accreditation process that audits vendors and service providers that will greatly benefit industry input at critical points with the aim of minimizing the workload of the customer whenever possible. From various representatives within the industry, they will have to collectively decide on which processes to audit and which provider will be granted Nadcap accreditation based on the results of a rigorous audit procedure.

Why Nadcap?

Nadcap is a way to manage the industry primarily to assess whether service providers adhere and conform to certain standards in their business processes. In the same way as to how other accrediting associations operate, technical experts from the Industry and the Government are brought together to lay down accreditation requirements, list down the accredited Suppliers and to define operational program requirements. The procedures for accreditation, in turn gives the businesses the quality assurance that they are looking for in welding companies. This is the kind of assurance that we want to give to all our valued clients.

The audit process that DCWi has been subjected tested every aspect of our welding process. Clients are assured that a proper weld schedule is being followed for all our projects, quality materials and techniques are employed in the processes and the parts are cleaned and processed in the prescribed manner to maintain the integrity of the welds. Quality & Integrity is the lifeblood of our business and we take very good care of that in all our business dealings.

Why Choose Us?

By now, you should have realized how rigid yet plausible the Nadcap accreditation process is. We go through all of these to make one point very clear for all our business dealings, that is: We leave nothing to chance with the quality of our precision welding jobs. Now you won’t have to worry even the tiniest bit about the small details – WE HAVE DEALT WITH THAT. This is the DCWi difference.

Dan’s Certified Welding Inc. provides the latest and the best welding services – ACCREDITED and CERTIFIED! Our technical expertise in this field allows us to deliver only the highest skill level in doing aerospace welding. Being Nadcap accredited, our clients are assured that they are dealing with uniquely qualified welders to fulfill stringent and demanding requirements of the industry.

What are the Various Orbital Welding Applications?

Orbital welding applications is growing more and more as we realize the benefits of this welding kind. Learn more about orbital welding equipment, application and materials.

Orbital welding gives high quality welds

Orbital welding is a special area of welding where the arc is mechanicallyOrbital welding application rotated 360 degrees around a static work piece in a continuous process. This process was developed to address the issues on operator error in gas tungsten arc welding (GTAW) processes. In orbital welding, computer-controlled process runs with only very little intervention from the operator. This process is specifically used for high quality, repeatable welding. The orbital welding process was invented more than 50 years ago as a way to solve the issue of operator error in GTAW. Read on as we learn more about orbital welding applications, equipment, process and materials.

The main components of each orbital welding machine as the controller and power source, the welding head and a wire food mechanism. Welding materials of certain types and sizes also requires the use of a water or coolant system. There are several orbital welding equipment factors that can have an influence on the welding result. These aspects include the magnitude, arc length and pulse frequency of the welding current, thermal conductivity, welding speed, weld preparation, inert shielding gas, filler material and parent material. Ultimately, a quality weld is achieved via detailed knowledge of how to precisely adjust these parameters for individual welding task.

It’s hard to achieve the highest standards of safety and quality in manual welding

This is because of certain welding positions, that often lead to faulty welds because of restricted access in these positions. To have complete control over the weld pool, a perfect balance should be maintained between gravitational force and surface tension at each torch position. By using mechanized variants of the technique, certain parts of the welding process are handled by mechanical components. Take note that a welder will always control and monitor the process. Ideally, all welding parameters is programmed before welding starts. However, in practice, the presence of variable constraints means it’s mostly necessary for the welder to make corrective interventions.

Orbital welding has almost always been exclusively done by the tungsten inert gas technique using non-consumable electrodes, with extra cold-wire feed where necessary. The easy control of heat input makes TIG welding the best welding method for fully orbital welding of tubes with specialist orbital welding heads that incorporate a clamping device, TIG electrode and shielding gas chamber. Various kinds of metal can be welded: steels, nickel alloys, copper, aluminum, titanium and associated alloys. Carried out in an inert atmosphere, this technique gives results that are very clean, free from unwanted spatter and have low particle counts. This allows the highest depands to be met when it comes to the optical and mechanical properties of a weld seam.

Because of its ability to realize high purity results, orbital welding found its place in making clean-room components for the semiconductor industry. This application has now expanded to the construction of equipment and pipework for diverse industries like aerospace, shipbuilding, biotechnology, food processing, automotive engineering, pharmaceuticals and chemical engineering. Automated orbital TIG welding is also used in making power stations. The construction of materials used should be able to withstand the huge mechanical loads made by the high temperatures and pressures made by the media in the tubes.

Pores, notches and inclusions in the weld seams should be avoided at all costs because these make weak points that can lead to subsequent formation of cracks.In turn, these can have serious consequences when it comes to component failure. This means that tubes are mostly made from nickel-based materials that have walls of up to 200 millimeter thick. A manufacturer was able to come up with an orbital narrow gap welding system with hot-wire feed especially for this purpose that uses running gear that moves on a guide ring fixed around the tube. This new variant gave way to a lot of interest in the sector, following the worldwide boom in power station construction that field the continued search for increasingly productive manufacturing methods using new high temperature steels.

Along with the current methods of using hot wire and TIG orbital welding, there’s also a steady process in the development of FCAW/MAG/MIG welding that allows for a new range of new applications. Orbital welding can give reliable welding of reproducible quality with a range of techniques. This can be done to a high standard even when using unusual materials, small tube diameters, thick walls and in difficult working environments. Although more expensive than conventional welding equipment, productivity is also significantly higher than conventional TIG. Contact a certified welding company for more information about orbital welding application.

Tig welding aluminum

TIG Welding Aluminum 10 Equipment Pieces for Good Weld

TIG welding aluminum can be hard, particularly for beginners. Here are some helpful TIG welding aluminum tips and equipment to help you create quality weld jobs.

Know TIG welding aluminum tips

TIG welding aluminum can be a challenge, especially those with little Tig welding aluminumor no experience in welding aluminum, or even welding in general. This process involves getting two pieces of aluminum to stick together without breaking, shriveling, warping or cracking. Here are some helpful tig welding aluminum tips to help you learn how to weld aluminum faster than you would have otherwise. Here is a list of the equipment that you need.

1. TIG welder

Many sources say a TIG welder is the best method for welding aluminum. TIG welders are quite expensive and it can be hard to justify even the lowest quality units unless you’re making money with it. The most expensive units come with features that make doing high quality welds on aluminum possible. There are also bottom-of-the-line welders that is great for farmers or hobbyists. Know that adequate welds can still be made with a cheaper machine. But with a more expensive one, you get more amperage, water cooling, square wave AC, frequency adjustment and adjustment of positive to negative current for better penetration and cleaning.

2. Good welding gloves

Invest in high quality welding gloves; these will go a long way. Using those cheap ones will only lead to painful blisters.

3. Good welding helmet

Experts recommend that you get the gold tinted auto-darkening helments. although they can be expensive. Of course, you can still use those standard welding helmets; just make sure that you use them right.

4. Argon gas

Mixes will not work for aluminum, expect for an argon-helium mix. Never take the tank from MIG welding aluminum to use on your TIG welder because it will not work at all. You will only make a bunch of burnt soot and metal.

5. Aluminum welding rod

There are several recommended welding rods; you can ask an expert for advise. Make sure that you know which rod to use for which alloys as well as a ton of excellent aluminum and metalworking information, along with tig welding aluminum settings. You might ask how to tell one alloy from another, but you will not do any mission critical welding, so you do not have to worry about it.

6. Dedicated stainless steel

Use this stainless steel brush only for aluminum. As much as possible, label it with ‘aluminum’ so it will not get used for anything else.

7. Metal bench

If you do not have one, experts suggest that you get yourself one. Stopping your weld to put out a fire can be a big hassle. This can happen to you all the time, especially if you are still getting started with welding.

8. Squirt bottle with water

This is not for cooling the work, it is for putting out small fires that are not big enough to use a fire extinguisher on. Cooling aluminum quickly can cause it to crack in or near the weld.

9. Fire extinguisher

This might not be such as bad idea if you do not want to get fired for burning down the shop.

10. Heavy long sleeve cotton work shirt

This one is very important. TIG welding gives more UV radiation than any other welding process

Merely using a T-shirt or any other thin clothing will end up with you being painfully burned with peeling skin and blisters. It only takes just a few minutes to give you some serious burns.

11. Clamps or vise grips Get these or whatever you’ll use to hold your work in place

Also get some bars or blocks or copper or aluminum to use as heat sinks.

You do not have to make TIG welding aluminum hard and hazardous for you. Follow the simple tips above and you should be on your way to creating quality welds. If you are still unsure of your welding skills, contact a reputable, certified TIG welder or welding company in your area to do your welding projects for you.

Orbital Welding Procedure in Food and Drugs Industry

A great procedure for sterile or clean conditions, orbital welding procedure is now being adopted by many industries today. Learn how orbital welding programs are used in the food, beverage and pharmaceutical industry.

Orbital welding procedure for food

The orbital welding procedure has shown to be very effective in joiningOrbital welding procedure stainless steel tubing for systems where the products flowing through them has to be maintained in a sterile or clean condition. The ability to make smooth, crevice-free welds that maintain consistency and uniformity for numerous joints have made orbital welding technology the accepted joining technology for pharmeceutical in the United States. Crevice-free welds are important for controlling the growth of microorganisms in hygeinic pipe systems. The food and dairy industries in the country, which has been slow to adopting orbital welding, have shown a growing awareness during the previous years that the joining technology used to fabricate sanity piping systems is essential to achieving and maintaining sterilizability and cleanliness, and they are taking steps to improving the hygienic condition of their systems.

Orbital Welding Procedure for the Biopharmaceutical Industry

Orbital welding has been used for water for injection (WFI) and deionized (DI) piping systems throughout the pharmaceutical industry since the 70s. One example is a facility in Brazil that used orbital welding to join piping systems for WFI, hot DI water, cold water and compressed air at a high-tech art R&D and production facility for the production and manufacture of vaccines. Orbital welding is mostly used for installing process equipment on-site like the larger fermented for antigen production installed in a clear room at the facility. Welding standards in this facility had to meet the exact criteria needed for export of the vaccines to countries outside Brazil.

Another common orbital welding application is the installation of skid-mounted equipment. Biopharmaceutical equipment is mostly installed on skids with connecting piping and associated equipment that are fabricated off-site. This gives some amount of flexibility in location the equipment on-site and facilities installation. One example is orbital welding of boiler tubes used for joining the important pipes that gives gases to the bioreactor on the bio-reactor skids made by biotechnology facilities.

Orbital Welding Procedure in the Food Industry

Many of the major food industry suppliers have started using orbital welding. For example, Kraft Foods have bought orbital welding systems for many of its plants in many parts of the United States. They find it practical to have an orbital welder on-site for maintenance jobs and small installations that they can do themselves without the need to hire a contractor. Procter and Gamble installed piping systems. The company has specified that orbital welding should be used in their new construction if practical. Many fabricators have also been uisng orbital welding to manufacture fittings and equipment for food and dairy applications for at least a decade.

The North Atlantic Free Trade Agreement has shown interest in orbital welding in Mexico to meet the new requirements for export in Canada and United States. More food industry end users in Mexico now specify orbital welding. One company uses orbital welding to weld 316L  tubing in different sizes for pulp, fruit juice and dairy application. In India where skilled manual welders are scarce, one company orbitally welded the stainless steel piping systems in a cheese plant to process cheese slices for McDonald’s.

Orbital Welding Procedure in the Beer Industry

From the beginning, breweries have recognized the need control microbial growth in their process piping. One particular brewery in California that orbital welded around 11 miles of four and six-inch schedule pipe was one of the first orbital welding applications. Orbital welding is particularly important for making draft and cold filtered beer that are not pasteurized. Many of the major breweries in the United States and several in Latin America countries like Brazil, Argentina, Mexico and Nicaragua have successfully done orbital welding installations. And, to date, more breweries are replacing their manual welds with orbital welds.

All these is a proof of a growing interest in improving standards in the dairy, food, beverage and the pharmaceutical industry in the United States, Latin America, and in other countries as well. If end-users examine the cost-benefit ratios of new technologies, they discover that the orbital welding programs offers higher quality welds with better corrosion resistance at a reasonable cost in many applications of higher productivity. As these industries continue to improve on their fabrication practices, using orbital engineering is at the forefront.

– Rob Doty Production Manager Century Parts Inc.

DCWI is my favorite outside vendor to deal with, when they give you a date the part will be done you can count on getting the parts back on that date. I have never in the 15+ years had a part rejected that DCWI has welded. Competitive pricing & excellent quality I wouldn’t trust anyone else to weld my parts.

– Rob Doty Production Manager Century Parts Inc.

 

– Michael Jordan – Jay MFG

Jay Manufacturing Corp is a metal stamping job shop. We manufacture mainly aircraft parts. Dan’s Certified Welding meets all of our requirements for a welding shop, including micro welding. DCWI seems to be on all of the aerospace approved source lists. We have been using Dan’s Certified Welding for many years and they have always provided the best quality, pricing, and delivery.

– Michael Jordan – Jay MFG

– Buddy Holt–President. B.A.R. Precision Machine Inc.

I have been sending work to Reuben Salazar at Dan’s Certified Welding for over 20 years. In all this time we have not had a single rejected weld. I have been able to rely on Reuben at Dan’s Certified Welding for all of my Aerospace Welding requirement’s. I have found that he is always very professional and courteous to his customers. He is never reluctant to make suggestions or to help out a customer with a difficult project. His knowledge of his craft is exceptional. We will always rely on Reuben and his crew at Dans Certified Welding to handle all our most difficult welding projects.

– Buddy Holt–President. B.A.R. Precision Machine Inc.

– Roxanne Zavala, CEO Anoroc Precision Sheet Metal

Anoroc Precision Sheet Metal Inc has provided precision sheet metal components and assemblies to the military and commercial aerospace industries for the last 35 years. During that timeframe, we have relied on Dan’s Certified Welding to provide us with quality workmanship per blueprint requirements with full traceability and certification of conformance. They have extensive welding experience on all types of alloys and have consulted with our engineering staff to assist in the design quality welding fixtures to produce weldments that meet and exceed expectations. Their attention to detail coupled with their goal of providing customer satisfaction and on time-delivery keeps us coming back!

– Roxanne Zavala, CEO Anoroc Precision Sheet Metal

A Beginners’ Guide: GTAW Welding Techniques and Tips

Any welder should know GTAW welding techniques and tips to ensure a good weld. Here is a guide on TIG welding for beginners to make the process quick and safe for everyone.

GTAW welding techniques and tips

Before the GTAW welding process starts, all grease, oil, dirt, rust andGtaw welding techniques other contaminants should be removed from the areas to be welded. You can do this by the use of liquid or vapor cleansers of by mechanical means. Striking the arc can be done by momentarily touching the electrode to the work and quickly withdrawing it; using a apparatus to cause a spark to jump from the electrode to the work; and using an apparatus that initiates and maintains a small pilot arc, giving an ionized path for the main arc.

GTAW Welding: High Frequency Arc Stabilizers

High frequency arc stabilizers are needed when alternating current is used. They give the kind of arc starting described above. High frequency arc initiation occurs when a high-voltage, high-frequency signal is superimposed on the welding circuit. High voltage ionizes the shielding gas between the work piece and electrode, making the gas conducive so it initiates the arc. Inert gases are not conducive until they are ionized. For DC welding, the high frequency voltage is cut off after arc initiation. With AC welding, however, it mostly remains on during the welding, especially when welding aluminum.

GTAW Welding: Operating Variables

Briefly summarized, for TIG welding for beginners, the major welding process operating variables are: welding current, voltage, and power source characteristics; electrode composition, shape and current carrying capacity; shielding gas (welding-grade helium, argon or mixtures of both); filler metals that are generally the same to the metal being joined and suitable for the intended service

GTAW Welding: Techniques and Tips

1. Check the recommended gas flow based on the selected nozzle and the metal size. Adjust the gas welding machine to the suggested kind of amperage and current for the welding process being performed.

2. Turn the welder on and locate the foot control. Place the control in an area that is most comfortable. Press the foot control and strike the arc. Check your TIG welding manual for more information.

3. Once a puddle is formed, add the filler rod to the leading edge. To reduce chances of contaminating the tungsten, move the TIG welding torch to the back of the puddle once the filler rod is added.

4. Clean all metal surfaces and joints to be welded with a mechanical (grinding, scraping or bruising with a wire brush) or chemical process. Take note that the wire brush should be made of the same material as the material being welded (except for aluminum which can be cleaned using a stainless steel brush. Chemical solvents range from harsh chemicals like acetone and the light cleaning properties of alcohol.

5. Know the metal size. Except for aluminum and magnesium, the welding process should not be used with metals over 1/4 inch. Metals that are under 3/16 inch may not require edge prep. Metals that have a thickness of more than 3/16 inches require machined or ground edges to help bead penetration.

GTAW Welding: How to Stop Welding

Welding is stopped by shutting the current off with foot-or-hand controlled switches that allow the welder to start, adjust, and stop the welding current. They also allow the welder to control the welding current to get good fusion and penetration. TIG welding can also be stopped by quickly withdrawing the electrode from the current, although this can disturb the gas shielding and expose the weld pool and tungsten to oxidation. Shielding gas has to stay on for several seconds to keep the molten puddle, filler rod ad tungsten electrode from being contaminated.

GTAW Welding: Filler Metals

In the TIG welding process, the base metal thickness and joint design determine whether or not the filler metal has to be added to the joints. If the filler metal is added during manual welding, it is applied by feeding the welding rod manually into the pool of molten metal ahead of the arc, but to one side of the center line.

Knowing the right GTAW welding techniques and tips is important before you start your project. However, this can be too confusing for those who have little to no experience. In this case, you should be better off hiring a certified welder and allow him to do the job for you. Aside from ensuring a safe and effective welding job, you should have the peace of mind that the end results are of high quality, one that will last for a very long time.

Dan’s Certified Welding Inc. is Looking for a Skilled Aerospace TIG Welder

Be a DCWi TIG Welder Now and Securely Work in an Established Welding Shop

dans certified tig weldingA secured and well-paying job is hard to find these days. The good news is that Dan’s Certified Welding, Inc. is offering a skilled welder a chance to join their successful and still growing company.

A Boeing-approved supplier for more than three decades, Dan’s Certified Welding, Inc. is trusted to handle welding jobs for Boeing Seattle, St. Louis and Long Beach for their spare parts divisions. The company has welding approval by UTC, Rohr and Landing Gear division, Parker Hannifin, Gulfstream and others.

Job Opportunity For TIG Welder

Dan’s Certified Welding, Inc. is offering a job opportunity for a TIG welder who has been certified to AWS D17.1. Aside from crafting quality products and parts for their clients, the hired welder is also expected to get the customer timely deliveries as additional work is added.

Most importantly, the hired welder is given a chance to work in an established and still growing aerospace/aircraft welding shop. Plus, the employee is also guaranteed of work for a long time because the aerospace/aircraft industry has years of backlog welding jobs.

Anyone who is interested in applying, or has further questions about this job posting can click below for more information. Interested applicants can also send their questions or queries to info@danscertifiedwelding.com.

About Dan’s Certified Welding, Inc.

Dan’s Certified Welding, Inc. is a NadCap-accredited gas tungsten arc or tungsten inert gas welding company that has acquired a stellar reputation with more than 30 years of track record or success. Centrally located in Los Angeles, California, this company gives highly critical welding for aircraft parts manufacturers and machine shops.

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