Oxyfuel welding, cutting and brazing hobart institute of. Us navy 070208n7367k002 steelworker 3rd class michael streator, assigned to naval mobile construction battalion one nmcb1, is gas cutting a steel pipe as an exercise part of the gas cutting and welding ii course. Oxyfuel welding commonly called oxyacetylene welding, oxy welding, or gas welding in the u. Plasma arc cutting greater than 400 amps 14 6 oxyfuel gas welding and cutting the following controls shall be implemented during oxyfuel operations. The oxyfuel torch standard details much regarding the torchs performance, but it does not specify specific gas flow rates, which are left up to the manufacturers discretion. Welding torch or blow pipe with a set of nozzles and gas lighter. Scope and application oxyfuel gas welding and cutting 88. Oxyfuel welding, cutting and brazing covers the process in detail, equipment, applications, procedures and safety.
The chemical action of the oxyacetylene flame can be adjusted. Inspection of portable and oxy fuel gas systems wi37. However, it is still widely used for a variety of applications. Oxyfuel welding and cutting apparatus warning practice the following safety and operation precautions every time you use cutting and welding apparatus. Module 2 thermal processes unit 1 introduction to thermal processes and safety unit 2 introduction to oxyacetylene welding unit 3. A handout containing the highlights of the video titled setup and shutdown procedure for oxyfuel welding. Oxyfuel oxyacetylene welding a guide to gas welding. Oxyfuel oxyacetylene or ofw oxyfuel welding is a fusion welding process that uses a flame produced by gas containing oxygen and a gas fuel. Oxy fuel equipment is versatile, lending itself to welding, brazing, braze welding, silver soldering, metal heating for bending and forming and oxy fuel cutting. Gas welding is still used for side of metal, cut by oxygen propane cutting torch. Inspection of portable and oxy fuel gas systems central. Oxy fuel welding commonly called oxyacetylene welding, oxy welding, or gas welding in the u. This specification prescribes requirements for the classification of bare magnesium all welding electrodes and rods for use with the gas metal arc, gas tungsten arc, oxyfuel gas, a. I dont regret getting that first piece of oxy fuel equipment at all.
In this unit you will be introduced to oxy fuel cutting and the safety precautions required when using oxy fuel cutting equipment. Gas equipment oxy fuel welding, also known as gas welding or oxyacetylene welding, is a process that uses oxygen and gases such as acetylene, propylene, or propane, to weld and cut metal. In oxyfuel cutting, a torch is used to heat metal to its kindling temperature. Of all the welding equipment there is, oxygen acetylene torch equipment training is probably the the most neglectedand this is the stuff most likely to hurt you. The flying sparks, hot workpiece, and hot equipment can cause fires and burns. After all its about the quality of the entire fitting contour to reduce fitting and welding time. Traditionally oxyfuel processes are used for brazing, fusion welding, flame hardening, metalizing, soldering, stress relieving, cutting and bending. Fusion welding, with or without filler metal, in which the heat for welding is produced by the combustion of a fuel gas or gasses with an admixture of oxygen. Page 1 of 54 scope and application oxy fuel gas welding and cutting 88 subdivision j 43700333501 scope and application of the rules these rules apply to safe practices for users of oxy fuel gas welding, cutting, soldering, brazing, thermal spraying, related materials and equipment. Sparks can fly off from the welding or cutting operations. In this unit you will be introduced to oxyfuel cutting and the safety precautions required when using oxyfuel cutting equipment. Welding such containers should only be done by personnel familiar with the american welding society practice recommendation aws a 6065. Pdf oxyfuel welding and cutting sewalem gezie academia. The oxyfuel system is an auxiliary technique to welding developed since 1903 and used to date.
Oxy fuel cutting is a reliable, accurate and competitive cutting technique used for the cutting of mild steel. However, most welding and cutting applications have industry recommended flow rates that should be used as a general guideline. Deviation from the following safety and operation instructions can result in fire, explosion, damage to equipment, or injury to the operator. Preheat flames are used to raise the surface or edge of the steel to approximately 1800f bright red color. The oxyfuel welding and cutting certificate program is designed to enable the graduate to succeed in employment as a welder in industry. Eye and face protection for welding and cutting operations. This course describes the basic concepts of oxyfuel welding and cutting including what equipment and safety precautions are needed. May 08, 2018 oxy fuel cutting is an excellent solution for construction sites and field repair work because of its low cost and diverse application on metal of varying degrees of thickness. Miller offers gas equipment to completely outfit your oxy fuel needs including outfits, regulators, torches, tips and gas mixers. Oxyfuel torch standard for heating, welding, and cutting. Setup and shutdown procedure for oxy fuel cutting torch. Module 2 thermal processes unit 1 introduction to thermal processes and safety unit 2 introduction to oxy acetylene welding unit 3.
In oxyfuel cutting, a cutting torch is used to heat up ferrous metal to kindling. Check and be sure the area is safe before doing any welding or cutting. This document has been prepared by boc limited abn 95 000 029. The oxy acetylene and other oxy fuel gas mixtures welding torch remains a mainstay heat source for manual brazing and braze welding, as well as metal forming, preparation, and localized heat treating. Welding wldg oxy fuel welding and cutting lecture 3, lab 4. Oxyacetylene welding, commonly referred to as gas welding, is a process which relies on combustion of oxygen and acetylene. This however, is available only to members of the british metals federation which can be contacted at. Oxyfuel cutting is a chemical reaction between pure oxygen and steel to form iron oxide. This leaflet is for people who use compressed gases for welding, hot. Welding, cutting, and brazing welding is a process that joins materials together by melting a metal work piece along with a filler metal to form a strong joint. Oxyfuel gas equipment has many uses welding, cutting, heating, straightening. Pure oxygen, instead of air, is used to increase the flame temperature to allow.
This document is an aid to assist users, inspectors, and producers in communicating among one another their needs with regard to the oxygencut surface. Jan 25, 2017 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. When mixed together in correct proportions within a handheld torch or blowpipe, a hot flame is produced with a temperature of about 3,200c. Mediumduty oxyacetylene cutting and welding outfit 770 502. Later came a miller syncrowave 250, and all kinds of other stuff. Part 1 1991 glossary for welding, brazing, and thermal cutting. Because these hazards are so common in welding and cutting environments, proper selection and consistent use of eye and face protection are vital to avoid injury and blindness. In addition, oxy fuel cutting is still widely used, both in heavy industry and light industrial and repair operations. Oxyfuel gas, and other fuel gasoxygen, welding and cutting systems utilizing cylinderhosetorch will have a reverseflow check valve, in each hose, between the torch and the regulator reverseflow check valves that are integral with the torch are acceptable. Oxyfuel oxyacetylene welding a guide to gas welding twi. The process is used in a variety of industrial, construction, hobby and art applications. Oxyfuel welding, heating and cutting process manual installation and operation instructions before installing or operating, read and comply with these instructions controls corporation of america 1501 harpers road virginia beach, va 23454 to order call 18002250473 or 7574228330 fax 7574223125 april 2001.
Oxyfuel equipment is versatile, lending itself to welding, brazing, braze welding, silver soldering, metal heating for bending and forming and oxyfuel cutting. Of course, getting to show off flying sparks while you work is a nice bonus. This is a good book to learn oxyfuel gas welding, this is a paperback version of the book. Flame cutting is used to make the edges of the work pieces and for sheet cutting. Never do welding or cutting on containers that have held flammable or toxic substances. Flame cutting is used to make the edges of the work pieces and for sheet cutting films of metal from 1 to 12 millimeters thin, pipes, steel bars, and other ferrous. What functionalities should you take into account when automating this cutting process. Torches handles with welding tips go much cheaper than torches with cutting attachment.
Oxyfuel welding and cutting the oxyfuel system is an auxiliary technique to welding developed since 1903 and used to date in many industrial applications. Prior to beginning welding or cutting operation, an inspection shall be performed verifying that the cylinders, regulators, backflow prevention device, flame arrestors. Effective january 1, 2020 for oxyfuel and pressure. Using an oxyfuel cutting this case its oxygen and acetylene oxyfuel safety is a big deal. The oxy fuel welding and cutting certificate program is designed to enable the graduate to succeed in employment as a welder in industry. In order to discuss the various aspects of welding, cutting and brazing safety, first we need to cover the basics in this first module. Oxyfuel welding commonly called oxyacetylene welding or oxy welding or in the u. French engineers edmond fouche and charles picard became the first to develop oxygenacetylene welding in 1903. Liquid petroleum cylinders are painted aluminium and have lefthand threads. Fundamentals of gas cutting and welding cedengineering. Plasma arc cutting pac plasma cutting plasma arc welding paw plasma welding carbon arc cutting cac arc gouging, airarcing oxy acetylene welding or cutting torch welding or cutting, gas welding or cutting shielded metal arc welding smaw also known as stick welding is an arc welding process which produces coalescence by heating with an. 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. Following the inspection and installation of the regulators and hoses, the checklist is divided into two sections. Oxyfuel welding, heating and cutting process manual installation and operation instructions before installing or operating, read and comply with these instructions controls corporation of america 1501 harpers road virginia beach, va 23454 to order call 18002250473 or 7574228330 fax 7574223125 april 2001 supersedes.
While not practical for stainless steel or aluminum, oxyfuel cutting is a good process for mild and low alloy steels. This is an introduction to oxy fuel welding and cutting, including history and future in welding, safety, setup and maintenance of oxy fuel welding, and cutting equipment and supplies. Fuel torch handle o cutting attachment o appropriate cutting tip for acetylene i. Welders can employ oxyfuel cutting for metals as thin as 1 mm and as thick as mm. Oxyfuel equipment is versatile, lending itself to welding, brazing, brazewelding, silver soldering, metal heating for bending and forming and oxyfuel cutting. A procedures, practices and requirements for representative tasks employees are expected to perform b instructions for safe use, operation and maintenance of tools, equipment and. Om251 341 page 2 welding and cutting on closed containers, such as tanks, drums, or pipes, can cause them to blow up.
The graduate will be proficient in oxy acetylene welding and cutting, arc welding and reading blueprints. Page 6 of 54 training and evaluation oxyfuel gas welding and cutting 522 3 training and evaluation a you must provide training by a competent person that identifies. Setup and shutdown procedure for oxyfuel cutting torch a handout containing the highlights of the video titled setup and shutdown procedure for oxyfuel welding. To begin oxygenacetylene welding or cutting, open the. 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. While this document contains advice on the associated health risks, for more indepth guidance the british metals federation health and safety manual should also be consulted. Students will attain a wide variety of marketable skills while being taught introductory and advanced welding methods. Safety in gas welding, cutting and similar processes hse. Oxy fuel oxy acetylene or ofw oxy fuel welding is a fusion welding process that uses a flame produced by gas containing oxygen and a gas fuel. Mixers, and all other oxyfuel products the little torch, quickbraze torch, handiheetsilver smith torch 5. The milburn is likely quite old and while old torches arent big bucks id suggest he save it because its cool. Straight cutting torches are better for cutting so when you have one no need for an attachment.
Students receive various levels of welding proficiency after successfully completing. 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. In oxyfuel welding, a welding torch is used to weld metals. Pure oxygen, instead of air, is used to increase the flame. The graduate will be proficient in oxyacetylene welding and cutting, arc welding and reading blueprints. Operation of oxyfuel torches involves oxygen and flammable gases under pressure, open flames, flying slag and hot metal. Fundamentals of gas cutting and welding ced engineering. Welding technologies welding instruction is provided with carbon steel, stainless steel plate and pipe in all positions using gtaw, smaw, gmaw and fcaw processes along with pac plasma arc cutting and oxy fuel operations.
377 31 1145 840 34 435 966 563 416 215 1063 582 759 757 574 509 993 527 1290 1500 1255 669 259 1529 1396 484 271 854 328 1323 841 484 1449 1386 1179 1009 663 146 238 1391