The necessary temperature is maintained by gas flames resulting from the combustion of acetylene with oxygen. Oxyacetylene welding is a very common welding process that dates back to 1890s, wherein oxygen and acetylene are used as the two major welding gases. Knowing your cylinder size can save you precious time and heartache. Applicant shall provide written authorization signed by the property owner or his agent describing the scope and specific locations where the work is to be performed. All books are in clear copy here, and all files are secure so dont worry about it. However, it is still widely used for a variety of applications. When oxygen and acetylene are mixed in right proportions within a blowpipe or handheld torch, they can produce a very hot flame, with a temperature as high as 3,200 degrees. The oxyacetylene process is quite versatile, and can be used to weld most metals, it can be used as a cutting torch, as a brazing torch, and. A text book on welding and cutting metals by the oxyacetylene process 1915. In addition to the purposes of welding connecting, gas welding can also be used as preheating, brazing, cutting, and hard facing. Read the steps below to get a feel for what is going on, and then get a shop ta to walk you through the process the first time. This welding on the web box will appear throughout the manual. A mixture of oxygen and acetylene, burns as an intense focussed flame, at approximately 3,500 degrees centigrade. Fs page 1 job safety analysis safety information for the university of california, berkeley facilities services using an oxyacetylene welder a welding area of a minimum of 35 feet in diameter must be established.
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. Oxygen acetylene welding, or gas welding, is a process which relies on combustion of oxygen and acetylene. Do not withdraw acetylene from a cylinder at a rate exceeding 17 of the cylinder capacity. Fundamentals of gas cutting and welding ced engineering. Traditionally oxyfuel processes are used for brazing, fusion welding, flame hardening, metalizing. However, if it is used incorrectly, serious injury can occur to you and the equipment. The tanks are heavy, so find help moving the oxyacetylene cart around the metal shop. Oxyacetylene welding oaw oaw is a manual process in which the welder must personally control the the torch movement and filler rod application the term oxyfuel gas welding outfit refers to. Share copy and redistribute the material in any medium or format. Daytona state college offers an industry recognized certi. Fundamentals of gas cutting and welding cedengineering. Open the valve on the acetylene cylinder no more than threefourths of a turn so it can be closed quickly in case of emergency. Oxyacetylene welding is simple in concept two pieces of metal are brought together, and the touching edges are melted by the flame with or without the addition of filler rod. The oxyacetylene torch is a safe tool if used properly.
Oxy fuel equipment is versatile, lending itself to welding, brazing, braze welding, silver soldering, metal heating for bending and forming and oxy fuel cutting. It is extremely versatile, and with enough skill and practice you can use this type of welding for virtually any metal. This is used for rods and shafts, and called machine steel. Adjust the oxygen regulator screw by turning it clockwise until the recommended pressure is achieved. The instructor will give you a series of welding and cutting procedures to perform. Welding includes joining methods as diverse as fusion welding, forge welding, friction welding, braze welding, brazing, soldering and explosion welding. Competencies given a functional oxyfuel gas unit, instruction and demonstration of use, each student will be able to. Cutting with the oxyfuel process is just the opposite from of welding. Cutting of metals by means of flame has many advantages over other methods, specially when the metal is of irregular shape. Oxyfuel welding commonly called oxyacetylene welding, oxy welding, or gas welding in the united states and oxyfuel cutting are processes that use fuel gases or liquid fuels such as gasoline and oxygen to weld or cut metals.
Joints welded will be the buttjoint and outside corner joint in the flat position. Oxyacetylene is quite common in automotive repair shops, as well as plumbing applications, fabricating, and even artisan welding. Many different energy sources can be used for welding including gas flames, electric arcs, electric resistance, lasers, electron beams, friction, molten metal baths and ultrasound. It is acceptable to use acetylene regulators that indicate a static pressure up to 22 psi 151 kpa. Unit ii oxygas and other cutting welding processes. It is produced industrially by distilling air below its freezing point. Hot work procedures and permit policy hot work is any temporary or permanent operation that involves open flames or produces heat andor sparks. For welding the mild steel, open oxygen torch valve and adjust to neutral flame.
Oxyfuel welding, commonly referred to as oxy welding or gas welding is a process of joining metals. Oxyfuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal. Oxyacetylene oa welding is one of the many types of welding supported by the dp metals shop. The oxyacetylene process produces a high temperature flame, over 3000 degrees c, by the combustion of pure oxygen and acetylene. If this is not possible, tightly cover them with ap. None 2 hours weekly 02 a study of oxyacetylene equipment. Mem05022c perform advanced welding using oxy acetylene. Welding is a fundamental skill needed for many truck modifications and repairs. It is the only gas mixture hot enough to melt steel. Working safely with acetylene page 1 of 5 introduction this leaflet provides guidance on the fire and explosion hazards of acetylene. Refer to the victor acetylene cutting tip chart in appendix a or welding nozzle flow data in appendix b for the recommended pressures. This includes, but is not limited to, brazing, cutting, grinding, soldering, torchapplied roofing, and welding. Temperatures from the combustion of oxygen o2 gas and ethyne, or acetylene c2h2 gas can reach 3,340 degrees celsius, which is hot enough to cut through steel. The helmet leaves both hands free for working and positioning materials.
Gas welding and cutting 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. The oxyacetylene torch can be used for various tasks. Student will have entry level skill using oxyacetylene, plasma arc, and air carbon arc cutting. The oxyacetylene handbook is a basic handbook or manual on oxyacetylene welding and cutting and their related processes. Oxyacetylene welding oxyacetylene oa welding is one of the many types of welding supported by the prl.
Cutting, weldingbrazing and heating tip flow and pressure. Mediumduty oxyacetylene cutting and welding outfit 770 502. Ceramic bricks, vise grips, pliers, and clamps are available in a file cabinet in the weld room for fixturing. Demonstrate entry level welding skill using the smaw. The student will be introduced to oxyfuel welding, gtaw, and aluminum welding.
Oxy acetylene welding ofw fundamentals pressure settings. 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. Video an introduction to gas welding oxyacetylene oxyacetylene gas welding is commonly used to permanently join mild steel. Fusion welding a welding process that joins metals by heating them to be a melting point and allowing them to fuse or flow together.
Knocking over a cylinder can result in an explosion. Welding, arc, oxyacetylene vintage books collection 39. Check oxyfuel system for leaks with an approved leak detection solution or leak detector. Unit iioxygas and other cuttingwelding processes student handout section i. Pure oxygen, instead of air, is used to increase the. Oxyacetylene welding is an autogenous welding process, in which two parts of. The leaflet does not cover fixed installations where acetylene is used see. In modern steelage the steelmakers cut iron and steel by oxyacetylene, oxyhydrogen, oxy propane, oxynatural gas cutting blowpipes easily, speedily, and cleanly. The oxyacetylene welding process combines oxygen and acetylene gas to provide a high temperature flame for welding. Pass a written test on safety and operation procedures on the oxyacetylene unit with a minimum of 100 accuracy. More files in kentucky association of agricultural educators.
Safety for oxyacetylene welding thompson rivers university. Tagalong and versatorch outfits these portable oxy acetylene outfits weigh less than 35 pounds. Welding wel wel 150 oxyacetylene fusion welding i 1 hour prerequisites. Fusion weldinga welding process that joins metals by heating them to be a melting point and allowing them to fuse or flow together. Oxyacetylene flame may also be used for all types of brazing. Oxygen acetylene welding, or oxy acetylene welding, is a process for joining metals that was introduced in 1903 by thomas wilson. The project gutenberg ebook of oxyacetylene welding and cutting. Download oxyacetylene welding and cuttng weldability sif book pdf free download link or read online here in pdf. It can be used for cutting steel, welding steel, brazing and for heating metal.
Electric, forge and thermit welding together with related methods and materials used in metal working and the oxygen process for removal of carbon manly, harold p. Oxyacetylene welding oaw the oxyacetylene welding process uses a combination of oxygen and acetylene gas to provide a high temperature 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. When mixed together in correct proportions within a handheld torch or blowpipe, a hot flame is produced with a temperature of about 3,200c.
Mem05022c perform advanced welding using oxy acetylene welding process date this document was generated. Torch tip files cutting rosebud welding striker backup flint. Us navy 120209nrg587230 hull maintenance technician 2nd class tiffani carlin uses an oxyacetylene torch to separate a pipe from a fitting in th. Oxyacetylene welding see oxyfuel welding oxyfuel cutting an oxyfuel gas cutting process used to burn metals by means of the reaction oxygen with the base metal as elevated temperatures. Oxyacetylene cutting safety in agriculture osha standard 1910. Materials oxygen cylinder, acetylene cylinder, regulator, valves, torch, welding tips, goggles, friction lighter, tip cleaner, personal safety equipment. It is for people who use acetylene for welding, cutting and similar processes.
Oxy acetylene welding requires a specific skill set and thorough practice, coupled with which it can be used to weld virtually any metal. Cylinder sizing charts trico welding supplies, inc. Oxygenacetylene welding, or gas welding, is a process which relies on. Electric, forge and thermit welding together with related methods and materials used in metal working and. A practical manual of autogenous welding, oxyacetylene with a chapter on the cutting of metals with the blowpipe, 1915. Cylinder sizing can be a little daunting until you get the hang of it and our cylinder sizing charts make short work of learning and knowing the cylinders you.
Oxyacetylene welding and cuttng weldability sif pdf. You also will learn the related skill of blueprint reading. Gap wirea wire used for correct spacing of butt joints. The welding helmet fits on the head using a plastic adjustable headband. Use only acetylene or propane gas and oxygen with this equipment. 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. Oxyacetylene welding 101 print article august 7, 2017. When you are done clean the cutting tip with the cleaning tool file and tip cleaner. Acetylene one piece high gas withdrawal rates will require cylinder manifolding. Ask a tech to retrieve the oxyacetylene rig keys for you to unlock the tanks. The chemical action of the oxy acetylene flame can be adjusted. Read online oxyacetylene welding and cuttng weldability sif book pdf free download link book now. Objective identify and use the safety practices that should be observed when welding with oxyacetylene gas. Project gutenbergs oxyacetylene welding and cutting, by harold p.
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