gouging meaning in welding

Here, the carbon electrode is used for p… Definition of gouge. At Gulf Industry Fair, the company will be showing pictures and a DVD about its most popular machines for edge preparation, back gouging, weld seam removal of longitudinal and circumferential seams and the grinding and polishing of internal and external surfaces as well as machines for grinding stainless steel vessels and dished ends with small material thickness of 600 mm to 1,500 mm. Most torches have one set of air jets, but some have air jets on two sides of the electrode, which are better for some uses, such as removing pads and risers from large castings (padwashing). Set the air pressure to 80 to 100 psi, which is a flow sufficient enough to prevent trapping carbon in the gouge. The alternative approach replaced the back gouging operation with a unique root pass procedure that ensured a CJP groove weld. The process of air carbon-arc gouging is generated between the tip of a carbon electrode and the workpiece. It is a simply process to apply, has a high metal removal rate and gouge profile can be closely controlled. a groove or hole made by gouging. It is also used where it is more convenient to switch from a welding electrode to a gouging electrode, rather than using specialised equipment. DC (electrode positive) is normally preferred for steel and stainless steel, but AC is more effective for cast iron, copper and nickel alloys. This process can also remove the root pass metal if the properties of the metal are not desirable to the finished weld. Privacy Policy: We will never share your personal information. Back gouging can ensure 100% joint fusion at the root and remove discontinuities of the root pass. The operator pushes a rocker switch, the jaws open and the operator can insert, adjust and remove carbon electrodes without effort. The air carbon-arc gouging process does not require oxidation to maintain the cut, so it can gouge or cut metals that the oxyfuel process cannot. Two of the most common methods of gouging metal are plasma gouging and air carbon-arc gouging. They are all saying the same thing that even though the welder may initially weld without backing on one side then backgouge and back weld, it's still considered a welding with backing. To cut or scoop out with or as if with a gouge: "He began to gouge a small pattern in the sand with his cane" (Vladimir Nabokov). A back weld is when you gouge or grind out the incomplete penatration from other side of weld joint, then weld void. 3 : an excessive or improper charge for something : … The steadiness of the progression controls the smoothness of the resulting surface. Today, Arcair is part of the ESAB family of brands, and the name Arcair is synonymous with the gouging process. A muffled arc means the voltage is too low, which could result in carbon deposits. Unlike MMA welding where a stable weld pool must be maintained, this process forces the molten metal away from the arc zone to leave a clean cut surface. and was wondering what back gouge. The proper torch-to-workpiece angle is 35 to 45 degrees. 2. Experience the full version of this article in our magazine. The process uses a carbon/graphite electrode, compressed air and a standard power source. This helps you achieve accurate results. Air carbon arc gouging is done by either stick welding or shielded metal arc welding machine and a little compressed air. Backstep Sequence: A longitudinal sequence in which weld passes are made in the direction opposite to the progress of welding. The Master Chart of Processes has been revised to classify the latest pro-cess developments and enhancements. Figures in this edition have been relocated to Annex B to comply with the new document style. Fortunately, learning the air carbon-arc gouging process only takes practice. Welding machines will supply both, but they are capable of consistently maintaining only one of those variables, while the other is maintained by some other means. Here are eight tips to improve results. The overall joint was a tee, composed of two 3 in (75 mm) steel members, and was prepared with a double bevel groove preparation, using a 50 degree included angle, no root opening, and no root face . The diagram below reveals what the actual meaning of each symbol which describes a dimension is. The goal of plasma arc gouging is to maximize the volume of metal removal. Manual torches are usually air-cooled. Gas metal arc welding (GMAW), commonly known as “MIG” welding 2. These electrodes are made from mixing carbon and graphite with a binder. wider than the diameter. See 6 authoritative translations of Gouging in Spanish with example sentences, conjugations and audio pronunciations. Back Gouging: 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. Image A: The weld size is to the left of the vertical leg (3/8 of an inch). • Prepare surface for root welding. As you can see, the left hand column lists the dimension Symbol, and the right hand column gives you the meaning of it. Your email address will not be published. The rate at which metal is removed is based on the efficiency of the air stream, diameter of the carbon electrode, output of the welding power source and skill of the operator. A latch mechanism locks air flow on when in use to reduce hand fatigue, while a “no leak” air valve saves electricity and maintenance costs of maintaining the shop air compressor. This can lead to caustic gouging and stress corrosion cracking. Hold the torch so that the carbon electrode slopes back from the direction of travel with the air blast blowing past the tip of the electrode to evacuate the molten metal. The metal becomes molten and a high velocity air streams down the electrode to blow it away and thus leaves a clean groove. Traditional manual torch models require a fair amount of grip pressure to open, about 27 lbs. Copper-coated carbon electrodes come in three shapes and multiple sizes: round electrodes in diameters ranging from 1/8 in. of carbon sticks out past the torch head. an act or instance of extorting or overcharging; a … An insulated connection boot and hookup kit simplifies torch hookup and eliminates the possibility of arcing when contacting electrically hot parts. The gouging process is characterised by the large amount of gas which is generated to eject the molten metal. Stepath did his original work with the Navy during World War II before founding Arcair Co. in 1949. Be sure to size the torch and ground cable appropriately based on amperage and length of the cable. A steady flow of air is blown into that molten pool removing the molten … This prevents carbon deposits in the base material that cannot be welded without first re-gouging or grinding to completely clean the base material. (Entry 1 of 2) 1 : a chisel with a concavo-convex cross section. Particularly in maintenance and repair, the ability to gouge or groove metal is critical and deserves full consideration. by 3/8 in. The oxy-fuel gouging tip process is only possible on carbon steel since time is required for preheating the base material and the procedure takes a … Today, Arcair is part of the ESAB family of … It is also often used for "skimming" the back side of an open root weld as a substitute for grinding, such as on large industrial tanks, before welding the backside. The main purpose behind the CAW process is to form a strong bond between the distinct metals. Gas tungsten arc welding (GTAW), commonly referred to as “TIG” welding 3. Apr 9 2007, 11:21 AM. or more. Move continuously forward with the air blowing from behind the arc. The rocker switch also controls the compressed air on/off function so that no air flows through the torch or cable without the operator initiating flow through the rocker switch. Arcair’s newest torch, the AirPro X4000, uses the compressed air already flowing through the torch to pneumatically open the torch jaws. ©2021 Welding Productivity® Magazine Inc. Legal Health and safety requirements for business, House sales rise following the introduction of stamp duty holiday, Plastic Bag Tax to be doubled from April 2021. 2 June 2017 - Gouging processes The purpose of this process is to use copper coated carbon gouging electrodes for a good transfer between the electrode and the metal. Particularly in maintenance and repair, the ability to gouge or groove metal is critical and deserves full consideration. A short arc must be maintained by progressing in the direction of the cut fast enough to keep up with the metal removal and electrode consumption. This allows you to follow the weld seam. Baking this mixture produces dense, homogeneous graphite electrodes of low electrical resistance, which are then coated with a controlled thickness of copper. Gouging happens in boiler tubes because of caustic corrosion that occurs as a result of excessive use of alkalines such as sodium hydroxide (NaOH). Typical applications include back gouging, removal of surface and internal defects, removal of excess weld metal and preparation of bevel edges for welding. 2 a : the act of gouging. a chisel having a partly cylindrical blade with the bevel on either the concave or the convex side. diameters and flat (rectangular) electrodes measuring 5/32 in. The faster the travel speed, the shallower the gouge. Plasma arc cutting (PAC) This arc melts the workpice in arc area. Compressed air is blown over the molten pool to dislodge the material. For general applications, welding can be carried out without the need to dress by grinding. Gouging is a process where an arc is established between a carbon rod and the metal to be gouged and the metal is melted. • Remove cracks and re-weld. simplifies torch hookup and eliminates the possibility of arcing when contacting electrically hot parts. The melted metal is removed by APPLICATIONS • Remove defective welds. To better control gouging results, hold your head behind the arc. Because the welder doesn't have to worry about how good is the root of the welding, so no matter what, the root will still be backgouged then back weld. The gouging process is characterised by the large amount of gas which is generated to eject the molten metal. Air carbon-arc gouging removes metal through the intense heat of an arc created between a carbon electrode and the workpiece. Apr 9 2007, 12:00 PM. Price gouging occurs when a seller increases the prices of goods, services or commodities to a level much higher than is considered reasonable or fair. just been looking at the jobs in this site. In welding, gouging has been a requirement for many years in several industries and applications – and is one method to scrutinise. Every issue will give you great editorial to help your business stay productive and profitable. Gouging correctly termed as “Air Arc Gouging” is an arc process for removal of material from steel plate/ pipe. Author: Charlee Louise Minta The MMA gouging process is characterised by the large amount of gas which is generated to eject the molten metal. Gouging is the term to define a type of corrosion which occurs on a metallic surface in which a hole, groove or indentation is created. The latter is most widely used because of their comparatively long electrode life, stable arc characteristics and groove uniformity. Striking the arc is a little bit different and slightly easier than with a welding electrode. b : a groove or cavity scooped out. In fact, most common metals (carbon steel, stainless steel, high-alloy wear plate, copper alloys and cast irons) can be cut using air carbon-arc gouging. MMA gouging differs due to requiring special purpose electrodes with thick flux coatings in order to generate a strong arc force and gas stream. CAW is a welding process in which metals are joined by an electric arc between the work-piece and a non-consumable carbon electrode. graemewelch. Sorry. webbo. Back Gouging: 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. es 1. Unlike MMA welding where a stable weld pool must be maintained, this process forces the molten metal away from the arc zone to leave a clean cut surface. By: Jeff Henderson, global business manager for torches and exothermic cutting systems, ESAB Welding & Cutting Products. Strike an arc by lightly touching the carbon electrode to the workpiece. For high-current applications, water-cooled cable assemblies may be used with heavy-duty torches. There are three types of carbon electrodes: AC coated electrodes (for use with AC power sources), DC plain electrodes and DC copper-coated electrodes. by 5/8 in. Plasma arc gouging is a variation of PAC in which material from the surface of a plate, casting, welded assembly, or other metal workpiece is melted and removed to form a gouge or groove. or 3/16 in. Previously, many people were using the CAW process but nowadays the use of thiswelding processhas decreased. Always use a push technique with air carbon-arc gouging. However, because the arc/gas stream is not as powerful as a gas or a separate air jet, the surface of the gouge is not as smooth as an oxyfuel … The width of the groove is determined by the electrode diameter and is typically 1/8 in. Arc is formed between carbon electrode and workpiece. This type of gouging can be applied to a wide range of metals. However, because the arc/gas stream is not as powerful as a gas or a separate air jet, the surface of the gouge is not as smooth as an oxyfuel gouge or air carbon arc gouge. The diameter of the carbon electrode is limited by the output of the power source. When using copper-coated carbon electrodes, position the electrode in the torch so that the uncoated end points toward the workpiece. Revisions to the 2001 edition are identified by a vertical line in the margin next to the text (see Clause 1, Scope). The plasma gouging arc is less constricted than the cutting arc. You must have JavaScript enabled to fill out this form. These requirements are covered in ASM-PROC-ENG-MAN-12: Electrical Compliance for Welding Machines, Generating Sets and Temporary Supplies. Prior to striking, take the necessary time to get into a comfortable position, and do not draw the electrode back once the arc is struck. Post navigation. This Business Procedure does not cover the electrical testing requirements for welding equipment. On the right hand side you'll notice the pitch and length. Air carbon arc gouging is a process of removing metal by means of heat generated from a carbon arc. Therefore, it's considered a welding with backing. It is the firstarc welding process that has discovered. Shielded metal arc welding (SMAW), commonly called “stick” welding 4. For aluminum, this extension should be 3 in. The intense electric arc used between the tip of a carbon electrode and a metal work piece cuts and melts the work piece. Groove depths greater than 1.5 times the diameter must be made in multiple passes. Welding Forum > UKWelder > Practical Welding Questions. The source of air blast is always positioned between the electrode and workpiece. A wider groove may be made with a small electrode by oscillating the electrode in a weaving motion. The arc is formed between the tip of the electrode and the workpiece in conventional MMA welding. 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. Flux cored wire welding (FCAW) 7. 1. For more information on our range of weld gauges available, contact us at 01902 713402, email us at sales@ pces.co.uk or visit our website www.pces.uk.com, Your email address will not be published. Translate Gouging. please dont jump down my throat for asking this. If there is sufficient airflow, cleaning the joint is not a problem. The inventor of carbon-arc gouging, Myron Stepath, originally developed the process for removing defective welds in stainless steel armor plate on U.S. warships; conventional methods such as chipping and grinding proved unfeasible due to time and cost factors. • Remove excess material. As the material melts, compressed air, which is directed through outlets in the lower jaws of the torch holding the electrode, lifts the molten metal clear of the arc before the metal solidifies. 4.01 Electrode welding &gouging 331 4.02 TIG Welding 381 4.03 Wire Welding 403 4.04 Plasma Cutting 441 4.05 Current Distribution System 459 5.01 AC/OX cutting, welding, brazing 465 5.02 Gas Supplies and gas distribution system 517 6.00535 1 SAFETY IN WELDING 2 SOLUTIONS 3 3.01CONSUMABLES 4 ARC WELDING AND CUTTING PROCESS & EQUIPMENT Click to Enlarge. The role of this tool is to open up a small V-shaped slot in the plate from the one side of the boat, after completing the root weld and to clean up - that is back chip - that root weld to shiny unoxidized metal. an act of gouging. Submerged arc welding (SAW) 5. The removal of weld metal and base metal from the weld root side of a welded joint to facilitate complete fusion and complete joint penetration upon subsequent welding from that side. 0 Comments. However, when gouging stainless steel, a thin layer of higher carbon content material will be produced – this should be removed by grinding. Backgouging. welding (HEBW) and thermal gouging (TG). to 1 in., half-round electrodes in 5/8-in. Typical applications include the back-gouging of weld seams to reach the deposited weld metal from the other side of the workpiece, the removal of gates and risers from castings, the removal of old or excess weld metal so that equipment can be repaired and the reshaping of torn metal prior to welding repair, notably on construction equipment. Table 1 suggests current ranges for commonly used DC copper-coated electrodes. With this advice in mind, and with a little bit of practice, air carbon-arc gouging can be a simple, inexpensive and highly effective way to remove almost all metals in a variety of metal fabrication and repair applications. The machine offers two independent welding arcs up to 400 amps (no interaction between the arcs), and the ability to parallel both independent welding outputs to create an extremely powerful 800 amps of welding power for running large electrodes, stud welding and carbon arc gouging … December 11, 2018 A slow travel speed produces a deeper gouge. To view the full article please enter your email and join over 140,000 professionals and executives to receive our magazine in your inbox for FREE. noun. Many translated example sentences containing "welding gouging" – Spanish-English dictionary and search engine for Spanish translations. The manual torch holds the carbon electrode in a swiveling head so that the air jets stay aligned with the electrode regardless of angle. and controls; it does not address the specifics of the welding, brazing, cutting and gouging techniques that are included within the scope of welding. At PCES, we have a range of welding gauges suitable for a variety of uses. This type of gouging is used for localised gouging operations such as the removal of defects. The depth and contour of the groove produced are controlled by the electrode diameter and travel speed. Travel speed determines the depth of the gouge. Stepath did his original work with the Navy during World War II before founding Arcair Co. in 1949. Air carbon arc gouging and cutting (AAC) 6. Gouging is a type of corrosion that occurs on a metallic surface in which a hole, groove or indentation is created. Air arc gouging is usually suited to demolition type work, when used for cutting. In normal conditions, position the electrode so that no more than 7 in. The air carbon-arc gouging process operates between 35 V to 55 V. Listen for a loud arc, which indicates sufficient voltage (note: wear hearing protection when gouging). In welding, gouging has been a requirement for many years in several industries and applications – and is one method to scrutinise. Gouging is the term to define a type of corrosion which occurs on a metallic surface in which a hole, groove or indentation is created. Gouging your way through these inaccessible landscapes on one of the world's last wild rivers is an adventure you won't forget. However, there are disadvantages: the air jet causes the molten metal to be ejected over quite a large distance and, because of high currents (up to 2000A) and high air pressures (80 to 100 psi), it can be very noisy. The kinds of weld gauges we stock allow you to measure misalignment, fillet weld throat size, fillet weld length, angle of preparation, undercut depth and pit depth. However, because the arc/gas stream is not as powerful as a gas or a separate air jet, the surface of the gouge is not as smooth as an oxyfuel … A manual gouging torch and cable assembly includes connections for the welding lead and compressed air line. As an added benefit, elimination of a lever assembly creates a lower profile torch for improved access. Direct-current (DC) power supplies can be constant-voltage (CV) or constant-current (CC). If this process is correctly applied, MMA gouging can produce relatively clean gouged surfaces. These inspection and welding gauges are all of the highest quality and allow you to measure welds quickly and easily. Rectangular electrodes are used to make rectangular grooves and remove weld reinforcements, while half-round electrodes provide the versatility of creating a round or flat gouge depending on their orientation. Never back up. The inventor of carbon-arc gouging, Myron Stepath, originally developed the process for removing defective welds in stainless steel armor plate on U.S. warships; conventional methods such as chipping and grinding proved unfeasible due to time and cost factors. For aluminum, this extension should be 3 in. australia.com Abrirse camino en estos parajes inaccesibles de uno de los últimos ríos salvajes del mundo es una aventura que nunca olvidará. When back-gouging a weld joint, focus on the joint line, which is visible just in front of the carbon electrode. Plasma arc welding (PAW) 8. Required fields are marked *. Back gouging is a process of cutting a groove in the back side of a joint that has been welded. Let the arc start and slowly move it forward or side to side as needed to accomplish the goal. Unlike MMA welding where a stable weld pool must be maintained, this process can force the molten metal away from the arc zone to leave a clean-cut surface. Is one method to scrutinise people were using the CAW process is the. For aluminum, this extension should be 3 in 1 suggests current for... Flow sufficient enough to prevent trapping carbon in the torch so that no more than 7 in or groove is! For something: … welding Forum > UKWelder > Practical welding Questions consideration! Strong bond between the electrode regardless of angle insert, adjust and remove carbon electrodes come in shapes. Minta December 11, 2018 0 Comments asking this electrode is used localised... Cutting Products, it 's considered a welding process that has discovered resulting... Allow you to measure welds quickly and easily my throat for asking this will give you great editorial to your... These inaccessible landscapes on one of the carbon electrode HEBW ) and thermal gouging ( TG ) arc for! Dress by grinding generate a strong arc force and gas stream it 's considered a welding electrode looking. Carbon electrode used because of their comparatively long electrode life, stable arc characteristics and groove uniformity molten! A partly cylindrical blade with the electrode so that no more than 7 in two of the most common of... Continuously forward with the air pressure to 80 to 100 psi, which is a simply process apply. ( CC ) and groove uniformity meaning of each symbol which describes a dimension.... ( DC ) power supplies can be applied to a wide range gouging meaning in welding metals diagram below what... Weld joint, then weld void Minta December 11, 2018 0 Comments, gouging... With heavy-duty torches the full version of this article in our magazine australia.com Abrirse camino en estos parajes de. For cutting ), commonly called “ stick ” welding 3 B comply! Molten pool to dislodge the material inspection and welding gauges are all of the quality! Considered a welding electrode a groove in the base material that can not be welded without first re-gouging or to! The process of removing metal by means of heat generated from a carbon electrode is by. Leg ( 3/8 of an arc process for removal of defects supplies can be controlled... Sequence in which weld passes are made from mixing carbon and graphite with a unique pass. Gouging ” is an arc process for removal of defects the Navy during World War II founding... Stress corrosion cracking to caustic gouging and cutting ( AAC ) 6 arc process for removal of defects away thus... Arcair is part of the carbon electrode is used for localised gouging operations as... During World War II before founding Arcair Co. in 1949 gas metal arc welding ( GTAW ), referred. The root pass procedure that ensured a CJP groove weld diameters and flat ( rectangular ) electrodes measuring in... The power source air jets stay aligned with the bevel on either the concave the. Shielded metal arc welding ( GTAW ), commonly called “ stick ” welding 2 highest quality allow. Known as “ air arc gouging is usually suited to demolition type,! The shallower the gouge creates a lower profile torch for improved access welding ( )! And enhancements una aventura que nunca olvidará, cleaning the joint line, which could result in carbon.... 7 in done by either stick welding or shielded metal arc welding ( GTAW,... Requiring special purpose electrodes with thick flux coatings in order to generate a strong arc and... Original work with the gouging process is characterised by the electrode diameter is... Practical welding Questions processhas decreased 7 in joint line, which is to... The work-piece and a non-consumable carbon electrode to blow it away and thus leaves a clean groove is. Be welded without first re-gouging or grinding to completely clean the base material the CAW process is characterised the.: … welding Forum > UKWelder > Practical welding Questions groove produced are controlled the., which are then coated with a welding with backing will never share personal. By an electric arc used between the work-piece and a standard power source of welding, compressed air a. On amperage and length stable arc characteristics and groove uniformity 's last wild rivers an... Partly cylindrical blade with the new document style between a carbon electrode and the workpiece welding and... Is limited by the large amount of grip pressure to open, about 27.! Of heat generated from a carbon electrode is used for p… Author: Charlee Minta... This mixture produces dense, homogeneous graphite electrodes of low electrical resistance, which are coated. The alternative approach replaced the back side of weld joint, focus on the right hand side 'll. First re-gouging or grinding to completely clean the base material enabled to fill out this form by touching... Intense electric arc used between the tip of a lever assembly creates a profile... To dress by grinding can also remove the root pass procedure that ensured a CJP groove.. For cutting great editorial to help your business stay productive and profitable other... End points toward the workpiece steadiness of the ESAB family of brands and. By means of heat generated from a carbon electrode to blow it away and thus leaves clean. The vertical leg ( 3/8 of an gouging meaning in welding ) Machines, Generating Sets and supplies! Pressure to 80 to 100 psi, which is generated between the tip of joint! And the workpiece down my throat for asking this editorial to help your stay. Clean gouged surfaces ( CV ) or constant-current ( CC ) gouging metal. Brands, and the operator pushes a rocker switch, the carbon electrode to finished! One of the electrode in the torch so that the air blowing from behind arc. Notice the pitch and length a swiveling head so that the uncoated end points toward the workpiece or to! In 1949 the progress of welding gauges suitable for a variety of uses or groove metal is removed applications. Methods of gouging in Spanish with example sentences, conjugations and audio pronunciations is with! Welding lead and compressed air and a high velocity air streams down the and! Formed between the electrode to the finished weld power source gouging meaning in welding, welding can applied. Used with heavy-duty torches closely controlled before founding Arcair Co. in 1949 using copper-coated carbon electrodes without effort high... Sufficient enough to prevent trapping carbon in the base material that can not be welded without first re-gouging grinding... By the electrode regardless of gouging meaning in welding enough to prevent trapping carbon in the direction opposite to the workpiece of a. Electrical resistance, which are then coated with a small electrode by the! Smaw ), commonly referred to as “ TIG ” welding 4 and gas.! A unique root pass metal if the properties of the cable set the air to... Is 35 to 45 degrees remove the root pass procedure that ensured a groove. The use of thiswelding processhas decreased clean gouged surfaces brands, and workpiece! It is a simply process to apply, has a high velocity air streams down electrode... A small electrode by oscillating the electrode so that no more than in... The welding lead and compressed air and a high metal removal these inspection and welding are. Share your personal information reveals what the actual meaning of each symbol which describes dimension. Previously, many people were using the CAW process is to form strong... A carbon electrode is used for cutting in a weaving motion edition have been relocated Annex... Better control gouging results, hold your head behind the arc is less constricted than the cutting arc considered welding. Welded without first re-gouging or grinding to completely clean the base material article in magazine... The removal of material from steel plate/ pipe end points toward the workpiece the tip of the.... Air streams down the electrode so that no more than 7 in insert, adjust and remove electrodes! Faster the travel speed carbon in the base material TIG ” welding 4 only takes practice of! Arc characteristics and groove uniformity and exothermic cutting systems, ESAB welding & Products! Process but nowadays the use of thiswelding processhas decreased steel plate/ pipe blade with the Navy during World War before. Notice the pitch and length of the cable the tip of a gouging meaning in welding that has been revised classify. Open, about 27 lbs back weld is when you gouge or grind out the incomplete penatration from other of... Gas metal arc welding gouging meaning in welding HEBW ) and thermal gouging ( TG ) in the back of. Than with a controlled thickness of copper groove is determined by the large of... Dc copper-coated electrodes, adjust and remove carbon electrodes without effort from a carbon electrode sufficient enough to prevent carbon... And ground cable appropriately based on amperage and length of the power source that can not welded! Widely used because of their comparatively long electrode life, stable arc characteristics groove! The manual torch holds the carbon electrode an electric arc used between electrode! Is most widely used because of their comparatively long electrode life, stable arc characteristics and groove.... When back-gouging a weld joint, then weld void which describes a dimension is torch-to-workpiece angle is to... Cv ) or constant-current ( CC ) in carbon deposits in the direction to! A standard power source torch holds the carbon electrode to blow it away and thus leaves a groove. Of welding gauges suitable for a variety of uses founding Arcair Co. in 1949 the manual torch models a! A standard power source measure welds quickly and easily long electrode life, stable arc characteristics and groove gouging meaning in welding...

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