The History of Welding
Written by Lew Amicone
Types of Welding
- Arc Welding: Arc welding involves an electric arc used to create heat and melt or join metals. A power supply is required to create the electric arc.
- Oxyacetylene Welding: Ocyacetylene welding is also called gas welding. This process uses the combustion of oxygen and acetylene in a torch or blowpipe, producing a hot flame.
- High-Frequency Electric Resistance Welding: High-frequency electric resistance welding uses less heat because electromagnetic energy is used instead. Heat and pressure join material, which improves the weld properties.
- Laser Beam Welding: Laser beam welding uses a laser beam to join thermoplastics or metals. The concentrated heat source of the laser beam enables joining thinner materials. For thicker materials such as tools, the laser beam creates a deep and narrow weld.
- Ultrasonic Welding: Ultrasonic welding is a welding process used to join or reform thermoplastics. A high-frequency mechanical motion generates heat at the joint area to melt the plastic and form a molecular bond.
- Solid-State Welding: Solid-state welding joins materials without using a vapor or liquid phase. This type of welding uses pressure, either with or without the use of temperature.
- Electron Beam Welding: Electron beam welding involves minimal heat, resulting in a clean and precise weld. This type of welding is ideal for joining metals that are hard to weld together and dissimilar metals.
- Gas Welding: With gas welding, the heat is produced from a gas or gases burned at a high temperature. Gas welding is ideal for welding pipes and tubes.
- Underwater Welding: Underwater welding involves submersion of the welder, possibly at elevated barometric pressures. Underwater welding requires special training, and the welder must be a trained diver as well.
Welding Equipment and Safety
The inherent dangers of welding make it crucial to follow safety protocols and use proper safety equipment. Welders need protection from fumes, ultraviolet and infrared light, and hot metals. Welders also need extensive training to understand the processes and the hazards involved in working with radiation, explosives, and toxic environments.
- Welding Helmets: Helmets protect the face and neck from radiation and sparks.
- Eye and Face Protection: When a full helmet is impossible to wear, goggles and a face shield offer protection for the eyes and face.
- Safety Glasses: Experts recommend that welders wear an extra pair of safety glasses under a welding helmet.
- Gloves: Flame-resistant gloves the protect hands when working with radiation and intense heat.
- Body Protection: Welding jackets offer flame-resistant protection while welding at a workstation.
- Apron and Sleeves: Welders should wear an apron and sleeves under their welding jacket for extra protection of the chest and arms.
- Respirator: Wearing a respirator offers protection from airborne particulates and fumes.
- Welding Hat: A welding hat is worn under a helmet, offering additional protection from sparks.
- Boots: Leather boots can protect the feet from heavy objects and sparks.
Welding Schools and Organizations
- Welding Schools: The Three Big Ones
- Best Welding Schools in the USA
- The Best Welding Schools and Colleges
- American Welding Society
- The United Association
- The Welding Institute
- The James F. Lincoln Arc Welding Foundation
- International Institute of Welding
- Welding Research Council
- Pipe Fabrication Institute
- Hobart Institute of Welding Technology
Additional Welding Information
- Pros and Cons of Joining a Professional Welding Organization: Joining a welding organization or association can add credibility to a résumé, but make sure that the organization is reputable.
- Welding Certification: Earning a welding certification shows training and qualification to perform a variety of welding processes.
- Procedures and Definitions: Welding procedures such as flux core welding and gas metal arc welding may be used in different situations.
- Why Welding? Welding metal is very commonplace, and it’s an integral part of many different industries.
- The History and Importance of the American Welding Society for CD and Drawn Arc Stud Welding Supplies: The American Welding Society sets standards and goals to ensure that welding meets the highest quality guidelines. Many industries follow the standards set by the AWS.
- What Do You Know About Welding? A welder needs to have specialized training to create different types of welds.
- Welding Information and Specifications: Use this weld wire selection guide to select your alloys for welding.
- What Does a Welder Do? Welders fabricate and join metal parts using heat and specialized equipment.
- The Six Things You Need to Know to Start Welding: Anyone planning to begin welding needs to use approved gear and must have adequate training for the specific type of welding.
- Welders, Cutters, Solderers, and Brazers: The Bureau of Labor Statistics provides career information for welders and other people working with metals.
- Welding Career Profile: A welder has a wide array of industries in which they can work.