Welding training oxyfuel welding basics tooling usme. By varying the relative amounts of acetylene and oxygen, a welder can produce different flame atmospheres and temperatures as he requires. Evaluate the fuel gas for its capability to do both welding and cutting. Competencies given a functional oxy fuel gas unit, instruction and demonstration of use, each student will be able to. Includes information about forehand and backhand welding, outofposition welding, welding thick materials, welding aluminum, oxyfuel cutting, brazing, soldering. Once you learn the basics of gas welding, you will find the oxy fuel process adaptable to brazing, cutting, and heat treating all types of metals. A practical handbook describing the welding and cutting of. This lesson will take students through the basic concepts, principles, and safety of oxy fuel welding. Which type of hose is used for used for acetylene fuel gases. However, it is still widely used for a variety of applications. Oxy fuel welding usually uses propane and as the name indicates oxygen to create the heat necessary to melt or to weld the metal. And this welding process is still very popular today, mainly because it does not require much equipment, and does not require power. Every effort has been extended in the preparation of this book to make it a textbook on the manual application of the oxyacetylene processes that will be of maximum use for selfinstruction or for classroom work. Preheat flames are used to raise the surface or edge of the steel to.
Oxy fuel equipment is versatile, lending itself to welding, brazing, braze welding, silver soldering, metal heating for bending and forming and oxy fuel. Oxy acetylene welding ofw fundamentals pressure settings chart set up and kit. Oxyfuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal heating for bending and forming and oxyfuel cutting. These materials are created for curriculum integration for the heating and refrigeration hvac program through the training for employment t4e at kansas city kansas community college for online. When mixed together in correct proportions within a handheld torch or blowpipe, a relatively hot flame is produced with a temperature of about 3,200 deg. When oxyfuel welding, gases are mixed in following before exiting the torch. Background the use of gas welding dates back to the middle 1800s where a mixture of oxygen and hydrogen were used. Oxyfuel gas welding, 7th edition technical book shop. Oxyfuel gas welding introduces students to the fundamentals of gas welding and cutting processes with simple, easytounderstand instruction. The oxy acetylene handbook is a basic handbook or manual on oxy acetylene welding and cutting and their related processes. Gas welding is widely used in maintenance and repair work because of the ease in transporting oxygen and fuel cylinders. This will be done starting with the cylinders and ending with the torch tip. The combination text and workbook approach allows students to work at their own pace.
This is a good book to learn oxyfuel gas welding, this is a paperback version of the book. Chapter 3 introduction to welding in the navy as well as private industry, welding is widely used by metalworkers in the fabrication, maintenance, and repair of parts and structures. In this book, you will find information about evaluating materials for melding. The purpose of this page is to introduce the beginning welder to the equipment used in the oxy acetylene welding process.
Pure oxygen, instead of air, is used to increase the. In addition to the purposes of welding connecting, gas welding can also be used as preheating, brazing, cutting, and hard facing. Working pressure limits for welding hose is 200 psig maximum. Do not open the acetylene valve more than one and one half turns. The various methods or techniques, however, are all based on. With this family of processes, the base metal and a filler rod are melted using a flame produced at the tip of a welding torch. A burn to the eye caused by exposure to ultraviolet light from the welding arc. Its a process where the a combination of pressure and flames are spread across the surfaces to be welded. Welding is a delicate art, but once you learn it, ordinary steel becomes a blank canvas for invention. How to set up an oxy acetylene torch with pictures wikihow. You will also know about the process of welding, including detailed information on mig, tig, stick, fluxcore, and oxy fuel cutting. Oxyfuel gas welding is a process that joins metals by combustion of a fuel gas, oxygen, and. In fact, thanks to the oxygen, you are able to even cut metals with the right torch, and i mean thick plates of mild steel.
Esabs experience with oxy fuel cutting dates back to 1907. The temperature of a neutral oxy acetylene flame is approximately. Oxyacetylene welding also known as oxy fuel welding ofw, includes any welding operation that uses combustion with oxygen as a heating medium. Oxyacetylene welding, commonly referred to as gas welding, is a process which relies on combustion of oxygen and acetylene. Fundamentals of welding program precision welding academy.
Gas welding uses tanks of compressed oxygen and fuel most commonly acetylenefeeding these gases through hoses to a handheld torch, producing an. Wldg 1528 introduction to shielded metal arc welding lecture 4. The oxyfuel gas welding processes employ several types of gases, which is the. It is an invaluable aid to industry as well as in schools and universities. Oxyfuel welding, cutting and brazing covers the process in detail, equipment, applications, procedures and safety.
Arc welding is a process that uses an electric arc to join the metals being welded. Gas welding vs arc welding which one should you learn. The oxyfuel process uses oxygen and what other types of gases. Oxy fuel welding ofw is a group of welding processes that join metals by heating them with a fuel gas flame or flares with or without the application of pressure and with or without the use of. The fuel gas commonly acetylene, when mixed with proper proportion of oxygen in a mixing chamber of welding torch, produces a very hot flame of about 57005800f. Basically two types of flame hardening techniques are in use, namely, spin hardening and toothatatime methods. Oxy fuel welding commonly called oxyacetylene welding, oxy welding, or gas welding in the united states and oxy fuel cutting are processes that use fuel gases or liquid fuels such as gasoline and oxygen to weld or cut metals. This book will highlight the welding and cutting processes. Fusion welding and gas welding using rg 45 gas filler rod. Some brands like the victor cutting torch have instructions to turn off the oxygen first.
Oxyfuel welding, cutting and brazing hobart institute of. A nonmetallic element that is colorless, odorless, and tasteless. Oxy acetylene welding plant high pressure system the term oxy acetylene welding plant refers to the basic equipment needed to weld. Emphasizes welding and cutting safety and basic welding processes. Oxy fuel or oxy acetylene welding are gas welding procedures that were invented in the early 1900s. Oxyfuel gas cutting and welding operation of oxyfuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot metal, meatl fumes and combustion products. Students in this course will learn to set up, operate, and shut down ofw equipment, and learn to perform basic welds with the ofw and tb processes. Oxy fuel cutting is a chemical reaction between pure oxygen and steel to form iron oxide. This is a welding process that is not used very often because the heat is not as high as the other processes, but is commonly used for welding lead. Oxides form during oxyfuel welding are harmful to the weld. An oxy acetylene torch is an affordable and versatile tool used by many people to heat, weld, solder, and cut metal. Oxyfuel welding, commonly referred to as oxy welding or gas welding is a process of joining metals by application of heat created by gas flame. Pass a written test on safety and operation procedures on the oxy. The first maritime deliveries from this period were supply of acetylene as fuel gas for the guiding light beams from numerous lighthouses along the long and weatherbeaten coast of norway.
This course is an introduction to oxy fuel welding and cutting, safety, setup and maintenance of oxy fuel welding, and cutting equipment and supplies. An introduction to gas welding oxyacetylene this is a video by the world association of technology teachers. Instructors will need to break instruction time apart using the discussion materials attached to all three lessons. An introduction to gas welding oxyacetylene youtube. Oxyfuel oxyacetylene welding a guide to gas welding. Beginners can grasp the basic welding concepts, such as proper finishes and safe welding techniques. Now lets shut down the oxy acetylene cutting torch equipment to shut down the equipment first turn off the fuel gas torch valve. A comprehensive treatise on the practice of welding cast iron, malleable iron, steel, copper, brass, bronze, and aluminum by the oxy acetylene methods, together with concise information on the equipment required for both welding and cutting by this process volume 12 of machinerys mechanical library. Oxy acetylene welding is a very common welding process that dates back to 1890s, wherein oxygen and acetylene are used as the two major welding gases. Torch outfits produce heat energy by burning acetylene gas. Arc welding practice on different joints and positions. Operation of oxyfuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot metal. An oxyacetylene station includes an oxyacetylene outfit, a welding table, ventilation, lighting, and other necessary room. Oxy fuel safety is a big deal a video showing cutting torch tips along with some safety.
The oxygen supports higher combustion, the acetylene is the fuel for the combustion. Oxy fuel welding ofw published on march 25, 2020 november 26, 2019. A distinct advantage of arc welding over gas welding is the concentration of heat. The oxyacetylene handbook is a basic handbook or manual on oxyacetylene welding and cutting and their related processes.
Abebooks, an amazon company, offers millions of new, used, and outofprint books. Every effort has been extended in the preparation of this book to make it a textbook on the manual application of the oxy acetylene processes that. Fundamentals of gas cutting and welding cedengineering. Tig welding 34 oxy fuel gas cutting 37 plasma cutting 44 safety always 46 conversion data inside back cover air products welders handbook. A chemical compund containing oxygen and one other element. Get the entire oxy acetylene welding dvd here highly recommended here are the common gas welding processes. What is the most common gas used for oxyfuel welding. Excerpt from oxyacetylene welding ten years ago the oxyacetylene. This is lesson one of three for an introduction to welding course. Oxy acetylene welding ofw fundamentals pressure settings. Welding polarities, classification of electrode, care and storage.
Wldg introduction to welding equipment used in oxy fuel and arc welding. This basic welding general knowledge practice test has questions and answers covering things like materials, tools, processes, maybe some math and more. It uses extreme heat to function, and setting it up properly is one of the most important steps in using it safely. Welding skills, processes and practices for entrylevel welders books. By adding oxygen gas, torch outfits can produce flame. Oxy acetylene welding is a welding process manually, in which the surfaces to be joined, which is warming to melt by a gas flame oxyacetylene with or without filler metal, where the connection process without emphasis. Gas welding and cutting oxy fuel welding, commonly referred to as oxy welding or gas welding is a process of joining metals by application of heat created by gas flame. Oxygen acetylene gas welding with the oxygen acetylene torch. Relationship among the size of electrode, current setting and job thickness. A joining process that uses a mix of gases to fuel a torch to join two metal parts.
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