Stand to the side and slowly turn on the acetylene or fuel gas cylinder valve. Our accreditations are more than just a logo eal recognised means regular assessments and compliance of content, delivery and administration. Cutting torch how to setup and shutdown an oxygen and acetylene torch. If you choose to train with pgs then you really are guaranteed training to the highest standard. Oxyfuel cutting has never been exclusively an oxyacetylene process. Technical explained working of explanation repair maintenance automobile engineering mechanical details on cars vehicles technology technical the best worlds best perfect well very. The terms, oxy standing for oxygen, and fuel the assortment of gases that produce combustion speak for themselves. Oxy fuel cutting ofc is similar to ox fuel welding except that. Theory of oxyfuel gas cutting the harris products group. I informed the president of the aws that this important book was no longer being published and its a book that the aws should. Learn about the tanks, regulators, torch, and techniques to be 100% confident with a cutting rig. In oxy fuel gas cutting, the actual cutting is done by a the fuels gas b a stream of oxygen c the preheat flames d a mixture of oxygen and fuel rust. If you like weld history, the encyclopedia is a treat.
The oxyfuel process is the most widely applied industrial thermal cutting process because it can cut thicknesses from 0. Using an oxy fuel cutting this case its oxygen and acetylene. Preheat flames are used to raise the surface or edge of the steel to approximately 1800f. Beginning in 1899, john harris discovered the oxyacetylene method of cutting while conducting research on the manufacture of synthetic rubies. A practical manual of oxyacetylene welding and cutting. Further information can be obtained in the welding institute technical note 7 safety in. What is the recommended lens shade for most oxyfuel cutting applications. The temperature of a neutral oxy acetylene flame is approximately. In addition, oxy fuel cutting is still widely used, both in heavy industry and light industrial and repair operations. In modern steelage the steelmakers cut iron and steel by oxy acetylene, oxy hydrogen, oxy propane, oxy natural gas cutting blowpipes easily, speedily, and cleanly. Welding metal results when two pieces are heated to a temperature that produces a shared pool of molten metal. However, most or all of the hazards of welding may still exist.
Acetylene acetylene produces the highest flame temperature of all the fuel gases and generates a highly focused flame. In oxyfuel cutting, a cutting torch is used to heat metal to kindling temperature where the. Oxyfuel gas welding, 7th edition technical book shop. In this unit you will be introduced to oxy fuel cutting and the safety precautions required when using oxy fuel cutting equipment. Oxy fuel cutting is a thermal cutting process that uses oxygen and fuel gas such as acetylene, propane, mapp, propylene and natural gas to cut through materials. Park industries is an american manufacturer of metal fabrication machinery. Now lets shut down the oxy acetylene cutting torch equipment.
Which material cannot be cut by the oxyfuel process. Follow the precautions in this safety section and those throughout this manual for your personal safety and the safety of people near the equipment. Esabs experience with oxyfuel cutting dates back to 1907. Or slightly more if necessary to get a good reading. Gas cutting the common methods used in cutting metal are oxygas flame cutting, air carbonarc cutting, and plasmaarc cutting. Ed has had many articles published on both the weld and cutting processes, and he rewrote the thermal cutting laser plasma oxy fuel cutting section found in the asm handbook. Use a gantry style thermal cutting machine capable of plasma andor oxy fuel cutting, powder marking and beveling. Those work shops, provided comparisons of oxy fuel equipment and the differences between the available fuel gases. Read through our history of oxygenacetylene metal cutting. Despite upcoming processes like laser cutting and plasma cutting, oxy fuel cutting is still one of the most used cutting processes in the steel industry. What is the most common gas used for oxyfuel welding. Oxyfuel cutting is a family of cutting processes which heats the work metal to.
Oxy fuel gas cutting and welding operation of oxy fuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot metal, meatl fumes and combustion products. Pdf oxyacetylene flame cutting is a relevant and widespread industrial process. Historically, the primary use of oxyfuel combustion has been in welding and cutting of metals, especially steel, since oxyfuel allows for higher flame temperatures than can be achieved with an airfuel flame. The harris group website states that in 1899, john harris of cleveland, oh discovered oxyacetylene cutting while he was using the oxyfuel process in his hobby shop to produce synthetic rubies and sapphires. Choosing between oxyfuel and plasma cutting systems. He accidentally discovered that some of free oxygen had actually cut the steel plate he was using as the base for his experiments.
You pay only for the printing and the paper the subjectmatter is gratis. Oxy fuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal heating for bending and forming and oxy fuel cutting. Cutting of metals by means of flame has many advantages over other methods, specially when the metal is of irregular shape. Apply to cnc operator, operator, laser operator and more. This book will highlight the welding and cutting processes. A guide to plasma cutting, oxyacetylene, arc, mig and tig. Deciding which to use depends on factors such as material type and thickness, available power resources, and the cost and location of the job.
Theory of oxyfuel gas cutting oxy fuel gas cutting is functional for use with low carbon and low alloy steels, with a carbon content generally restricted to 110 to 310 of 1%. Safety training for oxyfuel proactive gas safety training. Free kindle book and epub digitized and proofread by project. Ransome produces we also offer a large variety of options and other components to make our cutting machines and your facility more productive. Although oxyfuel cutting is generally viewed as a simple process, most machine operators realize that making it perform properly is not as simple as it looks. Experienced operators can achieve cut quality that rivals a machined surface, and do it in a fraction of the time cost of hard tooling.
Oxyfuel cutting allows metalworkers to cut extremely thick metals with ease, and a variety of torch options allow users to braze, solder, fusion weld, gouge, preheat, and bend metals as needed. The process consists of preheating the metal to be cut to. The book is sold at a price which precludes the possibility of profit to the author. Tips on why metal fabricators still need to be aware of oxyacetylene applications.
Oxyfuel welding and oxyfuel cutting are processes that use fuel gases and oxygen to weld or. Metal cutting is a common step involved with many weldingrelated jobs, whether the application is in the fabrication. In gas cutting, a torch is used to heat metal to its autoignition temperature and a stream of. Do not open the acetylene valve more than one and one half turns. Module 2 unit 7 industrial insulation phase 2 2 plasma arc cutting revision 2. Candles became useful for setting a romantic mood rather than reading a book. Oxy acetylene cutting also known as gas cutting or oxy fuel cutting is often considered less hazardous than traditional welding. In oxy fuel welding, a welding torch is used to weld metals. Cutting torch how to setup and shutdown an oxygen and. Contents 4 the school of the art institute of chicago 6 getting ready. Oxy fuel cutting is a relatively lowcost cutting process which is normally used for cutting lowalloy steels up to a thickness of 300 mm 12. Oxy fuel cutting and welding is a skill all in itself.
Some of our options are standalone and can be used with most shops current equipment. Once you know the drill size for the center hole in the cutting tip, you can use a welding reference book like the one in the video to get a ball park idea for pressure needed to make the cut. There are several potential hazards present when using oxy fuel equipment. If you have enjoyed reading so far, please purchase the book from the link below. It is, therefore, necessary that proper safety and operating procedures are understood prior to using such apparatus. Chapter 1 from the welding handbook, tenth edition, volume 1, welding science and technology, has been selected by the aws product development committee as a service to indust. Pdf kinetics of oxyfuel gas cutting of steels researchgate. Oxyfuel cutting is a chemical reaction between pure oxygen and steel to form iron oxide. This guide contains important information related to the safe and efficient operation of oxy fuel welding, cutting, and heating apparatus. Oxyfuel gas welding introduces students to the fundamentals of gas welding and cutting processes with simple, easytounderstand instruction. This is a good book to learn oxyfuel gas welding, this is a paperback version of the book. While working on the materials, he accidentally cut the metal plate beneath the synthetic ruby, discovering the worlds first flamecutting torch. In addition to the wide range of cutting and welding machines koike aronson, inc.
Includes information about forehand and backhand welding, outofposition welding, welding thick materials, welding aluminum, oxyfuel cutting, brazing, soldering. Oxy acetylene welding is the most common fuel to use, but others can include natural gas, propane, mapp gas. This portable gas cutting machine can be used with one or two oxyfuel torches, has a solid aluminum body and can perform straight line cutting, circle cutting, and bevel cutting. Gouging is an oxy fuel gas process meant for a removing rivets b piercing holes c removing layers of metal. Basics of plasma arc cutting vs oxyfuel cutting grainger. How to safely use an oxygen and acetylene torch to cut steel.
The various alloy elements found in steel affect the ability of the oxygen to cut the metal. As the pierce time is approximately one third that achieved with propane, it should be used when the pierce time is a significant proportion of the total cutting time, for example, short cuts and multipierce cutting operations. The combination text and workbook approach allows students to work at their own pace. Both oxy fuel and plasma cutting systems have their advantages and disadvantages. It is known around the world as one of the best portable cutting machines in the industry. Describe the plasma arc cutting process and its applications in the. Module 2 thermal processes unit 1 introduction to thermal processes and safety unit 2 introduction to oxy acetylene welding unit 3. The ik12 beetle is an affordable, portable, oxyfuel cutting machine. With a fuel tank, oxygen tank, and a torch, you can cut steel anywhere except for nonferrous metals such as aluminum and stainless steel. Aristotle section i oxyfuel cutting introduction oxyfuel cutting is a family of.
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