Posts Tagged ‘welding’

Oxy-Fuel Welding: Safety Procedure

Monday, October 26th, 2009

Welding of any type is a high risk job. Gas welding in particular requires more safety precautions. Here are some safety procedures that need to be taken care of while performing gas welding.

  • Always sport a helmet that covers your face thoroughly. Your face and eyes are
    the most important part of your body. They are most sensitive.
  • Always store oxygen and acetylene separately.
  • Make sure the equipment is chained tightly.
  • Check if the place you are about to work has a fire extinguisher in place.
  • Cylinders should be moved around and stored with their caps tightly on.
  • If you are using a cylinder, be attentive and remember to close the cylinder
    after use.
  • Apron, leather gloves and other protective gears should be worn at all times when performing gas welding.
  • Workplace should be always from dense human activity.
  • The place should be well ventilated.
  • Be alert and look for odors of fuel gases.
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Safe Ways To Welding

Tuesday, October 20th, 2009

Welding requires alertness and concentration to get the best out of the job. It demands alertness because the machines are harmful. A welder cannot laze around at work. He has to give total attention to the work he is performing unlike many other jobs. Accidents in welding are not new. Most of them are avoidable accidents. Here are some tips to avoid harm to you while welding;

  • Wear the right protective gear as specified by the manufacturer in the instructions book.
  • Keep the welding equipment rust free. Always check if there are any damages on the machine that might lead to accidents.
  • Safety gears for eyes are mandatory.
  • Area of work should be away from crowding places. This will create less damage if inevitable.
  • Maintain the welding equipment as advised by the manufacturer.
  • If there are any defective parts in your welding equipment make sure they are replaced at once.
  • Keep the work place airy.
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General Idea About Welding

Tuesday, September 29th, 2009

Through welding two or more pieces of metal can be joined which can act as a single piece. Welding is very important of our economy. In U.S.A nearly 50% of gross national product is related to welding in one way or another.

There are different processes of welding, out of which some processes cause sparks and others do not require extra heat. Welding can be done outdoors, indoors, underwater and in outer space. Welding work is done for different industries. They are involved in agriculture, construction and mining machinery. They are also involved in bulldozers, cranes, material handling, food-processing machinery, papermaking and printing equipment, textiles and office machinery. It is also used in transportation sectors like shipbuilding, aircraft, spacecraft, railroads, automobiles, trucks, buses, trailers and associated equipment.

Welding is also used in the primary metal industries which include steel mills, iron and steel foundries, smelting and refining plants. Another place is the electrical and electronic equipment companies. Welding in this group is done in electric generators, battery chargers to household appliances.

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Welding Tips

Tuesday, September 1st, 2009

Welding is mostly used for fabrication process. Welding means to merge two particles into one by melting and cooling processes. Welding can be heated through gas flame, electric arc, laser, electron beam and ultrasound. Welding can be done in open air, underwater and in space. But welding is considered dangerous. Unless proper precautions are taken, a welding operator may be exposed to burns, electric shock and ultraviolet rays.

Different types of welding:

There are various types of welding. One of the oldest methods is forge welding. Many people stopped using this method by the end of 19th century, when arc welding was developed. In oxy fuel welding, fuel gases and oxygen is used for welding purpose. Other important types include resistance welding, gas metal arc welding, submerged arc welding, flux core arc welding, electro slag welding, laser beam welding, electron beam welding and robot welding.

Some safety tips are as follows:

  • Welding process requires heating, so remove all the inflammable materials near the vicinity.
  • Wear protective gear to avoid injury caused by fire or gas.
  • Fire extinguisher should be in operating condition
  • Proper ventilation can avoid accumulation of toxic materials
  • A welding operator should always wear woolen clothes instead
    of cotton as it can catch fire easily.
  • In extremely dangerous cases of welding, the person doing the welding process should wear flameproof jackets to avoid fire.
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Process of Brazing

Thursday, August 20th, 2009

Brazing joins two pieces of base metal when melted metallic filler flows across the joint and cools to form a solid bond. The two base metals like silver and bronze are perfect for brazing. The process of both Brazing and soldering is same, but the only difference is that metals and temperatures differ. Brazing handles more unusual configurations with linear joints.

Before starting braze work it is important that you clean the entire area properly and then apply melted flux. Flux can remove oxides, prevent oxidation during brazing and smoothes the surface so that braze “flows” evenly across the joint. Then you gather the torch and braze alloy. Finally, you complete the joint by applying braze. One major advantage of Brazing is a brazed joint is smooth and complete, creating an airtight and watertight bond for piping that can be easily plated so the seam disappears.

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Is Welding Dangerous?

Wednesday, August 12th, 2009

Before taking up a welding job, welder should properly understand the safety techniques and procedures he needs to follow. While welding, sparks and spatter can easily burn your skin. To protect yourself from it, you should always wear safety equipment. Gloves and proper clothing should always be worn. Always wear welding helmet which has proper welding lenses so that you can protect your eyes and face from ultraviolet and infrared rays. Before and after welding, make sure that you clear the flammable materials.

Risks that are associated with welding are ultraviolet light, electrical or chemical fires and long-term negative effects from fumes. Sparks, arc and UV light are one of the dangerous aspects of welding. But if you wear auto darkening helmets and thick gloves your problem will be solved.  Certain metals like stainless steel, copper, zinc, manganese should be welded with caution. Find out what do they contain and weld in area with a lot of circulation.

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Welding Profession and Jobs

Tuesday, August 11th, 2009

There are plenty of job opportunities in this sector. You can get a welding job in repairing aircraft, ships and even in military and defense agencies. Other job opportunities are available in underwater constructing or repairing bridges. Demand for all types of welders will increase by next decade. American Welding Society (AWS) estimates that the number of vacant welding jobs will soon surpass the available pool of skilled welders by at least 200,000 workers in the United States alone.

Many welding schools are recruiting new students to meet the demand. Many welding schools do offer tuition scholarships, reimbursement programs and guaranteed job placement services. There are endless certificates that a welder can obtain. Many welders possess multiple certifications, which creates greater opportunities in terms of job advancement and salary range. Advanced welding careers include programming lasers, robots and other computer-controlled systems.

It is important to remember that a welding career is filled with risk and injury. Possible hazards include burns and exposure to chemicals or gases. Certain precautionary methods like wearing protective clothing and adequate ventilation should be provided to minimize these risks.

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Who Should Work in Welding Profession?

Thursday, July 30th, 2009

Welding is nothing but joining of materials with or without the application of heat, filler material and pressure.

Who should go in for welding profession?

  • Who wants more job opportunities
  • Want high wages
  • Who loves challenges
  • Wants diversification in his work
  • Has a dream to travel in U.S. or abroad.

The basic skills required for welding are good eyesight, good eye-hand coordination, be able to work for longer period of time, have patience, manual dexterity etc.

There are many institutions who will teach you both latest and traditional welding skills. Other subjects like metallurgy and blueprint reading will also be taught. Much importance will be given to safety throughout the program.

There are nearly half million people in U.S. who are working as welders, cutters or welding machine operators. In that nearly three fourth work in manufacturing and service industry. If you also include boilermakers, ironworkers and pipe fitters the total would come to nearly 2 million or 10% of national workforce. Welders are needed in manufacturing sector like transportation equipment, industrial machinery and fabricated metal products.

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Description About Welding

Tuesday, July 28th, 2009

Some important tasks that a welding operator has to perform are as follows:

  • Welding operator should follow all the safe habits and operate the welding equipments safely.
  • Welding can be operated in various positions like flat, vertical or overhead.
  • If any defective materials or equipment is found, notify it to supervisors immediately.
  • Monitor the fitting, burning and welding processes to avoid overheating of parts.

Tools used in welding are Blow torches; welders like Arc welders, underwater welding equipment, Wire feed welders; Welding masks like face shields, hand shields and welding shields. Welding tools that are required are Rod ovens, storage ovens, hot boxes and welding guns.

A welding operator should have mechanical and design knowledge. He should have mechanical knowledge of machines and tools.

Skills required for this job are time management, critical thinking, mathematics, listening skills, speaking, and reading comprehension and maintain the equipment in a proper way.

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Important Points on Training and Other Qualifications of Welding

Monday, July 27th, 2009

Many people want to become welders but are confused as where to start. If a person wants to become a welder he has to go in for a training that ranges from a few weeks of school or on-the-job training for low skilled positions to several years of combined school and on-the-job training for highly skilled jobs.

Where to take education and training: Welding training can be taken in high schools and in post secondary institutions like community colleges, private welding schools. Even U.S. Armed forces operate welding schools. Most of the employers hire workers who have already gone through the formal training. If a person does other courses like blueprint reading, shop mathematics, mechanical drawing, physics, chemistry and metallurgy or electricity, computers it can help him in this profession. A welding operator has to inspect welding equipments and welding process at regular intervals, so companies generally prefer workers who have a background in welding.

If an employer wants to hire a welder for certain positions which require specific skills he should have a certificate. American welding society certification courses are offered in many welding schools. For welding a worker should have good eyesight, manual dexterity and hand-eye coordination. They should be able to work for longer period of time.

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