top-rated free essay


By CCC121159 Jul 12, 2013 1576 Words
Instructor Name
Welding 219
06 June 2013
“Welding is a process critical to our present state of civilization and technical advancement, yet little understood and most often taken for granted” (Haynes and Storer 1). We are constantly hearing through television and other media sources that the job market for people trained in some sort of vocational skill is in very high demand. Media advertisements are encouraging students to consider a vocational skill when looking at their future. Welding is one vocational skill that has been and will continue to be in high demand. It is estimated that today, 50% of the gross national product relates to welding and is a part of just about everything you see, including the making of airplanes, ships and different manufactured products, from lawn mowers to big machinery. Welders hold approximately 452,000 jobs nationally with most jobs related to the manufacturing industy (Welding Career Guidance). Welding also plays a big role in providing energy. Welders are involved in the maintenance and building of offshore oil rigs, pipelines, power plants and even wind turbines (Salary Information). According to James Hunt, “Most companies and factories are looking to hire people who have some training with regards to welding.” To better understand the welding profession, we need to understand the definition of welding, the history of welding, the most common types of welding, welding safety, welding certification requirements and salary levels. At one time welding was simply defined as the “joining of metals through heating them to a molten state and fusing them together” (Haynes and Storer 2). However, as technical processes have advanced, there has been a need to change this definition. The two types of welding that currently exist are fusion and non-fusion welding. Fusion welding is the most common type of welding and involves melting the parent metals that are being joined. Non-fusion welding is completed by soldering and brazing (Haynes and Storer 2). Today, the welding definition has even grown to include the process of joining non-metallic materials, such as plastic where materials are fused as a result of heat or a chemical action. As a result, a modern definition of welding has to be all inclusive and should read “the joining of metals and plastics without the use of fasteners” (Haynes and Storer 3). Even though the definition has grown to include plastics, most welding continues to be about the fusion of metals together to create strong bonds within a building process. The development of modern welding dates back to the first blacksmiths living in the Middle Ages who heated and shaped metals for tools and weapons.This was an extremely important job during this time in history. Blacksmiths heated the metals in a wood fire and then hammered them into tools and weapons, then ground the sharp edges with a stone grinding wheel. The first recorded instance of solid phase welding occurred in 3000 BC when pictures were discovered inside a Thebee’s tomb showing metal brazing occurring. Forge welding developed from heating objects to a certain color and quickly hammering them together on an anvil. James Nasmyth made the first improvements in forge welding in over 3000 years with his development of the convex forge in 1846 (Welding Career Guidance). As the industrial revolution of the 19th century continued, most machinery was made of cast metal. Because cast metal was too brittle and too large for forge-welding, a process called cast-welding was developed allowing for quick repair of machinery. As the 20th century began, electricity was more widely used and people started using electric carbon-arc rods in the welding process. Oxy-actylene gas welding was also beginning to be used. As WWI began, welding became even more important in the building of aircraft increasing the use of lightweight metals to replace wood fuselages and wings. The demand for lightweight metals continued resulting in the refining of TIG welding and the invention of MIG welding in 1948 (Haynes and Storer 3,4). As the decades have past, welding developments have continued at a fast pace and have been closely tied to the development of electronics. (Haynes and Storer 5). Currently, there is almost no limit to what welding can do since the developments in technology continue to grow and “improve its accuracy, quality and versatility” (Why Welding). Welders are currently being trained to operate robots and other automated systems that are using powerful lasers, electron beams and even explosives to bond metals. Therefore, a modern welder’s ability to be able to work with computers and necessary program software is extremely important to the operation of these types of systems (Why Welding). The most common welding process is call Gas Metal Arc Welding, or GMAW. In this process an electrode is continuously fed through the nozzle of an arc torch. As the welder starts the torch, the electrode begins feeding through the nozzle creating a direct current that then creates an arc when it contacts the electrode and shielding gases. The welder controls the arc, filling the weld joint and creating the weld. Today in more advanced welding, lasers are used in combination with GMAW in a hybrid process to make scalpel-like cuts that are up to one-half inch deep, narrow and very precise (Why Welding). The two other widely used welding methods are Gas Tungsten Arc Welding (GTAW) and Shielded Metal Arc Welding (SMAW). GTAW is a low-heat method that uses a non-consumable tungsten electrode which reduces distortion in thin metals which are commonly used in aerospace projects. SMAW, which is also called “stick welding,” uses a flux-coated consumable electrode and is normally used for repair and steel welding (Why Welding). Welders should be very aware of safety issues surrounding welding. Since it is impossible to control the direction sparks fly when you are welding or cutting, you must protect your skin from possible damage. It is important for the welder to wear clothing that is flameproof. A welding jacket is the garment most welders prefer to use. It is also important to protect your head with some sort of hat. A ball cap is commonly used and is usually worn backwards to allow protection for your neck. Welders must also consider what they wear on their feet. Heavy-duty leather boots are considered the best choice. Eye protection with special tinted lenses is also a major consideration for the welder. Goggles are a common choice, however, a face shield is the more highly recommended choice because it offers more protection covering the entire face and part of the head. Heavy-duty, long leather gloves are also necessary to protect the welder’s hands during the welding process. (Geary 191-197). Even though a degree is not required for someone to become a welder, employment opportunities are better for those who have received some type of formal training. Most welding programs offer certificate programs along with associate degree programs (Wide Variety of Careers Available to Welders). You can obtain a certificate in entry-level and concentrated areas of welding, soldering and brazing in high school or in one semester at a community or technical college (American Welding Society). In our area, Gadsden State offers a short term certificate program that requires two semesters of instruction and a long term certificate program that requires four semesters of instruction. Many welders also work to receive optional certification from the American Welding Society. This certification demonstrates that a welder meets the “uniform national standards that have been set by the AWS” (Welding Degrees). All levels of certification in welding require that you demonstrate sufficient skill in a specialty area. Welders must also maintain their certification with AWS by reapplying for continued certification every 6 months (AWS). Right out of high school, the starting pay for welders is very basic ranging from $14 an hour to $16 an hour. However, a hard working, motivated welder who is willing to travel can make from $50,000 a year up to over $100,000 a year. Also, the more types of welding you master and the higher level of certification you receive, the more you can earn (Salary Information). Anywhere there is a need for metal to be joined, a welder is needed. This makes welding the most important process in building any sort of stable and secure structure. As the demand for welders continues to grow and as our economy is changing, it is important that students are aware of the opportunities available to them through the profession of welding (Wide Variety of Careers Available to Welders).

Works Cited

"AWS Certified Welder Program." American Welding Society (AWS). American Welding Society and Weld-Ed Center. 19 Jan. 2010. 26 Jan. 2011. . Geary, Don. Welding. New York: McGraw-Hill, 2000. Print.

Haynes, John Harold, and Jay Storer. The Haynes Welding Manual. Somerset, England: Haynes Pub. Group, 1994. Print. Hunt, James. "Welding as a Profession." Free Articles Directory. 27 Dec. 2005. 26 Jan. 2011. . "Salary Information." Careers In Welding. American Welding Society and Weld-Ed Center. 11 Jan. 2011. . "Welding Career Guidance." Directory of U.S. Welding Schools & Welding Programs. 28 Jan. 2011. . "Welding Degrees." Directory of U.S. Welding Schools & Welding Programs. 26 Jan. 2011. . "Why Welding." Careers In Welding. American Welding Society and Weld-Ed Center. 11 Jan. 2011. . "Wide Variety of Careers Available to Welders | Tulsa Welding School." Welder Career Training and Degree Courses | Tulsa Welding School. 26 Jan. 2011. .

Cite This Document

Related Documents


    ...Kagan McDonald Mrs. Wilmott SAE 2nd 10/1/13 Welding Risk and Safety Precautions Welding is a really good blue collar job that pays well, but has its ups and downs. Welders have to deal with hazardous welding fumes that can affect their health in numerous ways. There are several different types of welding fumes and mixtures that a w...

    Read More
  • Arc Welding

    ...ARC WELDING ME 353 Presentation 11-3-2000 Presented by Damon Ogden OUTLINE • • • • • • What is Arc Welding The four most common types Non destructive testing Design considerations Strength Safety Feel free to ask questions at any questions at any time. Arc Welding • Welcome to the world of WELDING What is Arc Welding...

    Read More
  • Principles of welding

    ...Unit 003: Principles of welding Lesson 1 Handout 1 – Heat sources required for fusion welding The following basic notes have been produced for learners and tutors and if required could be extend. Objectives 3.1.1(a)(b)(c)(i)(ii)(d)(e)(i)(ii)(iii)(iv)(v) Introduction To make a fused joint the heat source must be capa...

    Read More
  • Arc Welding or SMAW

    ...Arc Welding or SMAW Generally known as stick or arc welding. Arc welding is the most basic of all welding types, is easy to master in a home welding situation. Stick welding can be used for manufacturing, construction and repairs, very much well suited for heavy metal size 4 millimetres upwards. Thinner sheet metals and alloys are usually mo...

    Read More
  • Welding

    ...covers processes such as welding, brazing, soldering, adhesive bonding, and mechanical joining. These processes are an important and necessary aspect of manufacturing operations. This paper deals with one topic in particular ‘Welding’. Welding is a process for joining similar metals. Welding joins metals by melting and fusing the base meta...

    Read More
  • Mig Welding

    ...What is MIG Welding? Metal Inert Gas (MIG) welding, also sometimes called Gas Metal Arc Welding (GMAW) is a process that was developed in the 1940s for welding aluminum and other non-ferrous metals. MIG welding is an automatic or semi-automatic process in which a wire connected to a source of direct current acts as an electrode to join two piec...

    Read More
  • History of Welding

    ...millennia, called forge welding, with the earliest examples of welding from the Bronze Age and the Iron Age in Europe and the Middle East. The ancient Greek historian Herodotus states in The Histories of the 5th century BC that Glaucus of Chios "was the man who single-handedly invented iron-welding."[1] Welding was used in the construction of th...

    Read More
  • types of welding

    ...Metal Welding - Types and Processes Welding. So you think it's as simple as grabbing the gun and pulling the trigger, eh? Tell me this then - what types of welding are there? Not completely sure? Read on... Arc Welding  Arc welding is a process utilizing the concentrated heat of an electric arc to join metal by fusion of the parent metal ...

    Read More

Discover the Best Free Essays on StudyMode

Conquer writer's block once and for all.

High Quality Essays

Our library contains thousands of carefully selected free research papers and essays.

Popular Topics

No matter the topic you're researching, chances are we have it covered.