Do not store welding consumables directly on the ground or beside walls. Welding fumes and gases can displace air and lower the oxygen level causing injury or death. Aep corporate industrial hygiene welding fume study. Burnable materials should be removed from the area where welding or arc gouging is to take place or protected. Click add files and select the files you want to include in your pdf. Cutter employs the nozzle mix principle, in which the. Arc gouging weld preparation using automated plasma gouging. The main advantage of manual metal arc mma gouging is that the same power source can be used for welding, gouging, or cutting, simply by changing the type of electrode. There will be a brief description of the first two documents. When welding stainless steel, titanium and other corrosion resistant materials,the perfect environment for welding is paramount to maintaining the corrosion resistant properties.
The removal of weld and base metal by arc gouging or grinding from the other side of a partially welded joint to assure complete fusion and penetration upon subsequent welding from that side. You can merge pdfs or a mix of pdf documents and other files. Plasma arc gouging pag this booklet contains guidelines on the safe handling and operation of electric welding and cutting equipment. Have workers turn off the welding machine at the end of the shift or when they will not. Flame gouging is a variant of conventional oxyfuel gas welding. Do not cut or gouge to prepare for welding or remelting unless you mechanically remove the surface layer from the cutgouge surface. Welding fume study from early 2007 until april 2009, a study to identify exposures to the metals other than hexavalent chromium in welding fumes was conducted by corporate ih. Manual metal arc welding, department of training and.
Experience gained from user contact and welding training of crewmembers showed that. Protect yourself and others from flying sparks and hot metal. Back gouging is the removal of weld metal and base metal from the weld root side of a. No orders of safety supplies respirators, gloves, hand sanitizer, etc. If this is not possible, tightly cover them with approved covers. Model code of practice for welding processes safe work australia. The carbonarc melted the metal, then gravity moved the molten metal away. Positive grip handle design increases operator feel and ease of positioning the torch. Welding health and safety ss832 march 2015 page 5 carbon arc cutting arc gouging is an arc cutting process in which metals to be cut are melted by the heat of a carbon arc. Arcair cutskill gouging torches cutskill gouging torches. During the welding process, the weld seam is subjected to heat and air which causes oxidation, if the correct processes are not adhered to.
Back gouging root runs welding current kobatek 111 is used for ferrous or nonferrous metals where grooving is necessary without supplementary gases and special electrode holder. Advanced manufacturing systems mig gmaw welding pulsed mig gmawp flux cored fcaw welding. Share copy and redistribute the material in any medium or format. Weld preparation using automated plasma arc gouging.
Myron stepath, a welding engineer, developed air carbonarc gouging to remove several hundred feet of flat, cracked, stainless steel weld. Welding, hot work and allied processes wl16 respiratory protective equipment rpe maintenance, examination and testing it is vitally important to maintain rpe in effective and efficient working order. Heavyduty insulators, lever and handle that are all made from fiberglass reinforced thermoset polyester molding compound to withstand the heat and be impact resistant. Manual welding with equipment that automatically controls one or more of the. Oxygen and a fuel gas are used to produce a high temperature flame for melting the steel. Do not weld or use arc gouging equipment when the smell of propane.
Recommended practices for air carbon arc gouging and cutting 4th edition supersedes ansiaws c5. Process description as in conventional mma welding, the arc is formed between the tip of the electrode and the workpiece. Click, drag, and drop to reorder files or press delete to remove any content you dont want. The purpose of the welding handbook for maritime welders is to provide guidance in modern welding and related processes and to provide the welder with a source of practical information on the right solution to specific onboard welding problems. Not only once, but twice it instantly jumped the truck. Do not weld in locations near degreasing, cleaning, or spraying operations. Recommended practices for air carbon arc gouging and cutting. The arcairmatic n7500 gouging system is highly productive for any metal fabrication operation where gouging and welding represents a large portion of the work schedule. When gouging, the steel is locally heated to a temperature above the ignition temperature typically 900deg. Never attempt to gougecut without a welding helmet with the proper lens, that complies with federal guidelines. Air carbonarc guide 89250008 arc rays, hot slag, and sparks can injure eyes and burn skin the gouging cutting processes produce extreme localized heat and strong ultraviolet rays. Flux cored fcaw welding cutting and gouging description.
Manual gouging torches international customer care. The study uses 555 personal air samples taken throughout aep on many different types of jobs. Jul 11, 2014 welding technology ii, 71114, page 1 of 3 indiana department of education academic standards course framework welding technology ii welding technology ii includes classroom and laboratory experiences that develop a variety of skills in gas metal arc welding, flux cored arc welding, gas tungsten arc welding, plasma cutting and carbon arc. Note if you preheat for welding, preheat for gouging travel principles of air carbon arc workpiece air 80 psi always under the electrode copper peel back 34 to 2 stickout 7 max torch electrode torch. Topic welding industry welding safety air arc gouging by firstpass date 04112010 02. Get answers to welding process selection, cost analysis, welding procedures wps, general fabrication guidelines fitup, backing, gouging, welding techniques, etc. C and a jet of oxygen is used to melt the metal a chemical reaction between. This contains one of the best articles ever written on weld crackingsolutions.
Health service, center for disease control, superintendent of documents, u. When parts are prepared for welding, their edges can be beveled to produce a groove for the weld. The study included both aep employees and contractor employees. The american welding society and the american national stan. Amtec 8 gouging rod dc straight or ac electrode general characteristics amtec 8 is a grooving, chamfering, cutting and gouging electrode used without air or oxygen. How to merge pdfs and combine pdf files adobe acrobat dc.
A number 12 to 14 shade filter lens provides the best. It is a very fast and efficient metal working tool. Cicero supply remains open during the current crisis to serve essential supply chain needs. This applies to almost all metals, including stainless steel, carbon, manganese, and chromemoly steels. Pdf welding hazards and risk management boc canada pit. A steady flow of air is blown into that molten pool removing the molten metal. Be alert that welding sparks can easily go through small cracks and. Do not spot weld where flying sparks can strike flammable material.
This is a method for cutting or removing metal by melting it with an electric arc and then blowing. Once this is done, either of the two common methods of gouging metal can be used for repair works. Continuum 350 and continuum 500 description arc welding power source visit our website at. The melted metal is removed by applications remove defective welds. Kat travel carriage for gouging system combination rigid track idler carriage complete with heavy duty self. With rear mounted valves and cutting lever and round handle. Welding procedure specification wps yes prequalified. This handbook covers various welding processes, weld types. Todays product portfolio corresponds to a large variety of applications, from single pressure regulators and blowpipes for cutting and welding to sophisticated gas supply systems for medical and electronics industry applications. Guidelines for shielded metal arc welding smaw miller welding. For preparing sections prior to welding, gouging out old or defective weld metal, removing flash and risers. The jackco zeta charger is an amazing for its size, and i laughed when it was pulled out to jump my dead battery in my truck. Welding, burning, and cutting environmental health and safety. Gouging techniques with arcair tips for welders and.
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