This video is an introduction to the welding process known as MIG. In MIG and GMAW welding, a continuous solid wire electrode travels through the welding gun, along with a shielding gas to shield the process from contaminants in the air, and into the weld pool. In either case, the GMAW process lends itself to weld a wide range of both solid carbon steel and tubular metal-cored electrodes. Some are much thicker for heavy industrial applications. Although Gas Metal Arc (GMAW) or MIG welding is the most commonly employed type of welding… Weldcote Metals - 6010 Mild Steel Electrodes. I will explain the meaning of these symbols: FOR CARBON STEEL OR MILD STEEL (SUCH AS ER70S-6 OR ER70S-3), XX – Designates the minimum tensile strength of the deposited weld metal. Aluminum Grades: 2014, 3003, 3004, 4043, 5052, 6061, 6062 and 6063. Welding electrodes – Understanding the SMAW electrode symbols. It also has a lower heat input, with the exception of MIG in the spray arc weld mode, for less distortion and burnthough in the finished weld. In the case of aluminium filler material also, last three digits are specifying the chemical composition or grade only, not just the amount of silicon. MIG welding is an arc welding process in which a continuous solid wire electrode is fed through a welding gun and into the weld pool, joining the two base materials together. Stainless Steel Grades: 301, 302, 304, 305, and 308. Several manufactures have developed electrodes specifically for welding weathering steel. In most cases the gas used is always 100% Argon and in rare cases a helium/Argon mix may be used on base metals thicker than ½ of a inch. Stainless Steel Grades: 304,305, 308, 310, 312, 314, 316, 317, 321, 347 and 348. Required fields are marked *. The … For your all position welds an E71T-1 electrode wire. i can do all the welding required mma gma, It is very useful for quality welding process. In MIG/MAG welding, Voltage, Current and wire feed speed must be controlled for sound welding. It is typically used in industrial applications and it does get some rust spots from time to time. Home / Welding Processes / MIG Welding / MIG Welding Electrodes. This type of welding method requires the DCEP or the Direct Current Electrode Positive polarity. GMAW requires a shielding gas, to protect the weld pool from atmospheric contamination. Meaning of these symbols is explained below; 308 – Designates the grade of stainless steel of the electrode or filler wire, L – Designates that it is a low carbon electrode. Ensure the inter-pass temp weld temperature does not exceed 200F. Here are the aluminum electrode designations: The ER4043 is the most commonly used MIG filler wire. If you are welding a higher grade of carbon steel the minimum tensile strength is what usually changes. Lincoln Electric - Fleetweld 47 E7014 Stick Electrodes. We are a professionally … ER – Designates a welding electrode or filler wire, 70 – Designates the minimum tensile strength of the deposited weld metal shall be 70 Ksi or 70,000 Psi. Was going to say the same thing, good observation. Aluminum Grades: 5050, 5052, 5056, 5083, 5086, 5154, 5356, 5454, 5456. If you are welding aluminum thicker then 1/2 of an inch then you may want to try a Argon Helium mix. This welding … Go ahead. The gas and the filler wire are the major components in the setup … MIG is also a faster process than stick welding. Weldcote Metals - 6011 Mild Steel Electrodes. It may also be used to weld cast aluminum grades 43, 214, 355 and 356. The smaller the electrode the less power you need from your machine to run. Commonly used combinations of inert gases are; Argon helps in achieving cleaner weld whereas, Carbon dioxide helps in getting a deeper penetration. In this case it’s a 4000 series Aluminum, 043 – Reflects the amount of silicone added to the electrode. Welcome to Varun Electrodes. It is also commonly welded to Carbon steel on the same jobs. As for gas choices it is always 100% Argon gas. It does the job but no matter how high you turn up the machine it feels like it is running cold. Very useful information, thank you for this! MIG Welding Stainless Steel Electrodes and Gasses, 7 Incredible Facts About a Career in Welding. In particular the number 6 means that more deoxidizers have been added to the wire, which is helpful when welding on dirty or rusty steel. If you are a at home welder then use a small diameter electrode whenever you can. GMAW (MIG welding) electrodes are designated by some letters and numbers such as ER70S-6, ER90S-6 and E308L etc. The welding wire in MIG welding runs continuously with lesser downtime for electrodes replacement; MIG welding is excellent for tack and spot welds; Limitations of MIG Welding. Y – Designates the chemical composition of the additives such as deoxidizing agent or cleansing agent used on the electrode, it may affect the polarity setting also. Currently you have JavaScript disabled. The larger spools of MIG … Hence, whenever theses gases are used as shielding gas, the term MIG (Metal Inert Gas) welding is used.). A shielding gas is also sent through the welding gun and protects the weld pool from contamination. In other words the coating … The Voltage controls the weld profile. In most cases 100% Argon is what most shipyards, power plants and fab shops use no matter what the thickness of the aluminum is. TIG welding, on the other hand, employs non-consumable electrodes. Electrodes classification and designation is as follows: The ER4043 is the most commonly used MIG filler wire. No matter what you do the welds seems to look rough compared to welding stainless steel to stainless steel. It is also known as gas metal arc welding. It covers most electrodes that are commonly used in the field for: Typical MIG welding electrodes are a solid wire ranging from a thickness of .023 to .045. MIG welding is the most basic type of welding process, which is suitable for starters. In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. The wire designation for the ER316L and the ER316LSI are as follows: MIG welding aluminum electrodes selection is pretty straight forward. Over 100% means that the weld will weigh more than the weight of the core wire. The following table (Table – 1) gives the current range and the filler wire feed speed, based on the filler wire diameter. The wire designation is as follows. Ensure with multi-pass welds you use inter-pass temp control. Keep your … The term MAG (Metal Actve Gas) welding is used, because Carbon dioxide is an active gas. An electrode or a welding rod is a wire which is made up of wire and is coated. … These stainless electrodes are mostly used for lower grade stainless steels 301, 302, 304, 305, and 308. very informative article clear a lot of my concepts about mig welding, Your email address will not be published. These electrodes are designated in a different way. In this type of welding, you join two metals together using an arc. Almost any material can be welded using common welding processes: metal inert gas or metal active gas (MIG/MAG), tungsten inert gas (TIG) or electrode (manual metal arc) welding … Right Kind of Gas and Filler Wire. The arc is created between the two joining surfaces and filled … A constant voltage power supply is used to generate the arc. The gas used is always 100% Argon and in rare cases a helium/Argon mix may be used on base metals thicker then ½ of a inch. If possible do destructive test of a weld … The gas used most of the time is the same C2 or 2% carbon dioxide and 98% Argon. In non-standard terminology, GMAW is commonly known as MIG (Metal Inert Gas) welding and it is less commonly known as MAG (Metal Active Gas) welding. With DCEN, the negative terminal inside your machine is hooked up to your electrode (your MIG gun… These electrodes consist mostly of tungsten, which does not melt (unlike consumable electrodes… Among all the other types of welding, the stick electrode welding … This is a detailed page about MIG welding wire selection. It welds aluminum grades 5050, 5052, 5056, 5083, 5086, 5154, 5356, 5454, 5456. Whereas, other shielding gases such as Argon and Helium are inert in nature. For example if you are welding high strength steel the "ER70S-6" would be a "ER90S-6" instead. It welds stainless steel grades 304 through 310 when needed or welds dissimilar metals together where needed. Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) is a welding process in which an electric arc forms between a consumable MIG wire electrode and the workpiece … Stainless Steel Grades: 309 Stainless and Welding Carbon Steel to Stainless Steel or Low Alloy Steels. Metal Inert Gas (MIG) welding is an arc welding process that uses a continuous solid wire electrode heated and fed into the weld pool from a welding gun. GMAW (MIG welding) electrodes are designated by some letters and numbers such as ER70S-6, ER90S-6 and E308L etc. MIG Welding carbon steel or mild steels are typically welded with a ER70s-6" electrode using either 100% Carbon Dioxide gas or C25 gas that is 25% Carbon Dioxide and 75% Argon mixture. Whereas, the Current controls the heat input, size of weld and the depth of penetration. Depending on equipment and procedures, MIG has the potential for all-position welding, meaning less fixturing, or positioner, costs. Air liquide Welding proposes to go further with the comparative calculation that will help you to make up your mind to pick up the best value for your choice of welding process. MIG welding is a welding process in which an electric arc forms between a wire electrode and the workpiece metal. To choose from and that all depends on you welding supplier has to offer the job but no matter high... As Argon and Helium are Inert in nature in other words the coating … Right Kind of gas and filler. That the weld will weigh more than the weight of the time is the commonly. Welding supplier has to offer upon the shielding gas, the Current controls heat. Setup … MIG is also known as gas Metal arc ( GMAW ) or MIG welding electrodes! `` ER70S-6 '' would be a `` ER90S-6 mig welding electrode instead these stainless electrodes are designated by some and! 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