At a conference this past weekend, a student teacher requested this information. A number 10 filter lens is minimum for most arc welding processes. Math on metal the welding fabrication industry needs qualified welder fabricators who can deal with a variety of situations on the job. Benefits of learning oxyacetylene welding and cutting.
Most rods that one runs across at the farm supply store will be labeled something like this. Gas metal arc welding, oxyfuel, welding, cutting and brazing. I used 85 amps for the 18 6010 and 332 7018thats trick i learned years ago when i carried a leather rod pouch on my belt and was 100 yards from the welding machine. Discovering the 7018, 60, 6011 and 6010 welding rod sizes if youve done your research and read our article on different types of welding rods, then you might think you already know everything there is to know about these electrodes.
Worksheets are welding, arc welding safety guide, degrees that welding fabrication, wln azars, cte mathematics in welding professional math iv unit, developing welding safety concepts and behaviors through, safety health of welders, math on metal. Among all the other types of welding, the stick electrode welding is considered to be portable, simple and reliable. This can be found in asme bpvc section ix, table qw442. For example, the lincoln 7018 welding rod numbers show that the tensile strength is 70,000 psi. This portion of the training packet explores mathematics as it relates to industry requirements.
The simplest explanation of how stick welding works. When choosing a welding rod, the welder has to consider the type of welding and the material being welded. If your rods have not been in a sealed package you might want to dry them out. The 6011 and 6010 welding rods are very similar, so many people wonder what the advantages are of using one over the other. Use the owners manual, take apart the torch and show students the different parts of a. Dec 01, 2007 whether you are a diyer who stick welds only a few times a year or a professional welder who welds every day, one thing is certain. The remaining place value worksheets focus on building 3 digit to 6 digit numbers. Base metal grouping for welding procedure and performance qualification 1. Each welding procedure data sheet number should be unique so that the wpds can be easily referenced on production schedules, work orders, shop drawings etc. For manual welding, the rod is held in an electrode holder that connects the rod to the electrical circuit. Onsite and workshop welding where better mechanical properties are required and the work cannot be repositioned to allow welding in the downhand.
A printable chart of welding symbols with their meaning. We, at sciencestruck, have provided a comprehensive welding symbols chart that will help you communicate better with your welder or fabricator. The flux vaporizes at the tip of the welding rod, creating a gas that pushes the air away from the weld, resulting in a clean weld. If you want to print it out you can either click the image for a larger view and click print or here is my stick welding rod chart in pdf format. Choosing the right welding rod will determine the how easily the weld is performed, and how strong the weld will hold. Welding distortion is low on a thin steel sheet, because. These are good for the home hobbyist and those just coming into the welding field. Professional math iv is provided to enhance mathematics in high school and provide students with the math skills necessary for the current job market andor prepare students for college entry. The energy to form the joint between metal workpieces most often comes from a flame e. Its a lowhydrogen rod and moisture cant be allowed to get. List and describe current characteristics of the field of welding. To reduce the number of welding and brazing procedure qualifications required base metals have been assigned p numbers by the asme bpvc.
Oxyfuel equipment is versatile, lending itself to welding, brazing, braze welding, silver soldering, metal. Type aws class current type welding position weld results mild steel e6010 e6011 dcr dcr, ac f, v, oh, h f, v, oh, h fast freeze, deep penetrating, flat beads, all purpose welding e6012 e60 e6014 dcs,ac dcr,dcs,ac dcs,ac f, v, oh, h f, v, oh, h f, v, oh, h fillfreeze, low penetration, for poor fitup, good bead contour, minimum spatter e6020. Math on metal the welding fabrication industry needs qualified welder fabricators who can deal with a. All welding rods sold by urethane supply are sold in 12 300 mm long sticks except for the r01 urethane and r06 nylon. The number e6010 indicates an arc welding electrode with minimum stress relieved tensile strength of 60,000 psi. It is used for farm equipment, piping, wrought iron, and many kinds of general maintenance. Be sure to follow safety practices stated in the instruction manual of welding. All information in this data sheet is accurate to the best of our knowledge at the time of printing.
Most people dont want to sit down and learn all the welding vocabulary and i dont blame em, i didnt either. Every welding rod has a number that is assigned to it based on american welding society aws standards. Knowing which autodarkening helmet to buy, which gear will be the most protective, or even which metal to use are all decisions which youll have to make. Stick welding learn basic electrode selection, welding. Moreover, e7018 welding rods are easy to use with smooth weld results. The heat of the electric arc melts the metal which mixes with the molten deposits of the coated electrode. These numbers refer to a different characteristic of the rod. Classification of covered electrodes for manual metal arc welding.
Coating, current and polarity types designated by the fourth digit in the electrode classification number. The beginners guide to different types of welding rods. Er70s6 solid wire, suited for general purpose, manual and semiautomatic. Shielded metal arc welding rods welding tips and tricks. For example, e6010 is a 60,000 psi tensile strength electrode while e10018 designates a 100,000 psi tensile strength electrode. Then, present yourself properly dressed for welding in protective equipment, clothing, and footwear. The following are examples of numbers and how they are read. A reliable, general purpose electrode for manual metal arc welding of carbon steels, carbon manganese steels. For arc welding methods that do not use a shielding gas, welding rods with a flux coating are used. But before we get into each of these welding rods, lets delve a little into the world of welding rods classification.
In our base 10 blocks worksheets, students manipulate blocks units of 1 and rods groups of 10 to build, deconstruct or add numbers. There are many types of welding rods, and it would be good to know what each of these welding rods has to offer. Aws er70s6 solid wire, suited for general purpose, manual and semiautomatic. There are a number of potential safety and health problems associated with welding, cutting, and allied processes. This is measured in thousands of pounds per square inch. Arc welders use a variety of different electrodes, also referred to as welding rods. The number from which another is to be subtracted is the minuend. Stick welding is a form of welding that uses electricity to melt a metal filler rod electrodestick electrode is the proper term that melts both the metal joint and electrode all at once to fuse two pieces of metal together and fill the joint with filler metal at the same time. A metal rod that makes up the inside of the smaw electrode.
This course is a state approved cte course and meets sd high school graduation requirement. In this stick welding arc welding video, the amperage used was not exactly optimal. Shielded metal arc welding video using different types of welding rods. Aws digit type of coating welding current 6010 0 cellulose sodium dcep 6011 1 cellulose potassium ac or dcep 6022 2 titania sodium ac or dcen 60 3 titania potassium ac or dcep or dcen 7014 4 iron powder titania ac or dcep or dcen 7018 8 iron powder low hydrogen ac or dcep dcep direct current electrode positive dcen direct current. The 60 welding rod is capable of withstanding 60,000 lbs. Make sure the work area is free of flammable, volatile, or explosive materials. A number grouping has been done on the basis of the chemical composition of the deposited weld metal. Aws classifications causes and cures hobart brothers. Students explore how to weld and the safety procedures that are in place.
Describe the appropriate safety gear and clothing that must be worn when welding. Ask students to locate the flux and filler wire on the figure. The only purpose of a welding rod is to supply filler metal to the joint. Educational resources for k12 educators degrees that work. Take the class to a business where welding is a primary service offered. Arc welding is a process used to join two pieces of metal together.
Date and revision enter the date the welding procedure data sheet was prepared and the revision number. When you see a decimal point in a number, you read it as and. The electrode is recommended for welding joints subject to radiographic examination in pressure vessel, ship building, bridge and storage tank fabrications. The gtaw process is a relatively costly method of depositing weld metal, and is usually chosen for weld quality or material thickness and composition limitations, rather than economy. When it comes to welding, having so much choice can be overwhelming. An arc welder uses electricity to turn the tip of the welding rod into glowing plasma, which flows to the metal pieces you seek to join, melting them so they adhere.
End stamped with aws class er80sb2 for easy identification. The first two numbers of a 4 digit number and the first 3 digits of a 5 digit number indicate the minimum tensile strength in thousands of pounds per square inch of the weld that the rod will produce, stress relieved. Jul, 2016 an electrode or a welding rod is a wire which is made up of wire and is coated. For each number, have students tally or shade in squares that represent ones in the box provided, while counting. Welding rod sizes and uses what welding rod do i use.
Apr 02, 2020 smaw or stick electrodes are consumable, meaning they become part of the weld, while tig electrodes are nonconsumable as they do not melt and become part of the weld, requiring the use of a welding rod. If you are digging through a pile of electrodes, they are probably in need of drying. The position of the welding rod and torch tip in making a flat position butt joint is shown in figure 11. A welder creates an electric arc that melts the metal and filler rod to create a pool of molten metal that hardens to fuse the two pieces of metal together. Give them copies of the worksheet so they can complete them during the visit. Discovering the 7018, 60, 6011 and 6010 welding rod. It also requires some knowhow about stick electrodes also called welding rod. Base metal grouping for welding procedure and performance. My old arc welding chart click image for larger view. Among all the other types of welding, the stick electrode welding is considered to be portable, simple and. However, it is still widely used for a variety of applications.
Fill out the worksheet on welding safety as you watch the powerpoint. Includes composing and decomposing numbers, regrouping, counting and addition using base 10 blocks. Ferrous metals which have specified impact test requirements have been assigned group numbers within p numbers. In this welding lesson students take a safety test on welding and once they know all the rules they use the angle grinder. The e means that it is an electrode suitable for arc welding. This is a very versatile type of welding rod and is a little easier to use than 6010. North americas largest fleet of welding and positioning equipment welding electrode classifications mild steel coated electrodes e7018x e indicates that this is an electrode 70 indicates how strong this electrode is when welded. While digging through a pile of electrodes that were given to me, i noticed there are different codes printed on them. Safety and health of welders written by the staff of hobart institute of welding technology. The third welding number shows the directions in which you can use the electrodes. Students will also learn plasma cutting and wirefeed welding. Beginners only really need to consider a few basic factors, but once you.
The e7018 welding rod is highly regarded especially in structural welding due to its robust weld qualities and is commonly used in the construction of highrise buildings, bridges, shopping malls, dams, and other highlystrengthened structures. Damp rods dont weld well and if they got wet the rod may be rusty and that can affect the strength of the weld. If the wrong welding rod is chosen the weld might not work at all. The fnumber grouping of electrodes and welding rods is based on their. Tigrod products are embossed on opposite ends e2 with the alloy identification. The following are my nontechnical definitions for some basic welding terms. The tip of a welding wire and filler wire can injure. An arc welding machine joins two metals together by generating an electric arc between a coated metal electrode and a base metal. The coating of the electrode produces a gas which shields the weld from the atmosphere and helps to. Suitable for welding mild steel plate, sheet metal and galvanised iron sheet, ducting, hoppers. With your counselor, discuss general safety precautions and safety data sheets related to welding. Cte mathematics in welding professional math iv unit pacing. It would be good to remember that there are four primary welding positions, namely, the flat, horizontal, vertical, and overhead positions. Im just starting out learning to weld, and decided to start out with stick welding.
The aws number gives the welder complete information about the welding rod. In order to help you get to grips with this complex subject, weve put together the ultimate guide covering all. The first two digits of a 4digit number and the first three digits of 5digit number indicate minimum tensile strength. The electrode is made up of materials which are similar to that of the metals chosen to be welded. The third digit, on the other hand, refers to the number of positions in which the welding rod can be used. And since scores of product lines exist, along with a variety of classification systems, ordering these items can be something of an adventure. Welding consumables consumables are those materials that are used up quickly and need to be replaced. Another type of grouping for filler metal or welding rod is the a number. The most common arc welding electrodes for grey cast iron are nickel and. Chapter 6 soldering, brazing, braze welding, wearfacing.
The attached tables provide generally accepted electrode selections for the base materials shown, along with process areas that need special consideration. Being able to differentiate between the types of welding rods and being aware of their strengths, weaknesses, and best uses is just one of those features which have a huge impact on the strength and quality of your welds. Lincoln welding consumables handbook lincoln electric. Classification numbers either by jis japanese industrial standards or. The rod must be run on welders that use direct current dc.
It is often used to for repair welding aluminumsilicon cast alloys such. P number, f number and a number in welding asme section. Suitable for welding mild steel plate, sheet metal and galvanised iron sheet, ducting. Figure and table numbers in the text are italicized. When you buy a welding rod you will notice three sets of numbers imprinted on it.
Electrodes for welding have numbers stamped on them to identify the type and characteristics of the electrode as specified by the american welding society aws. However, owing to its extensive use, providing information about the type and size of the weld through symbols becomes essential. The motion of the flame should be controlled so as to melt the sidewalls of the plates and enough of the welding rod to produce a puddle of the desired size. To learn more about reading decimals and what they mean turn to the section on decimals. How to read arc welding rod numbers when you want to join together two pieces of similar metal, you weld them. This type of filler metal is often used for gas welding. Keep the welding area clean and free of tools, scrap metal, and water. An electrode or a welding rod is a wire which is made up of wire and is coated. Stick welding electrodesrods numbers, meanings and uses. There are 45 suppliers who sells welding rod numbers on, mainly located in asia. Next will be either a 4 or 5 digit number stamped on the electrode. Welding rods are available in different amounts, and its a good idea to have both fast freeze and filler rods onhand.
Be sure to follow safety practices stated in the instruction manual of welding equipment when you use it. Best welding method for beginners, the 15 minute guide. Follow the safety practice stated in the instruction manual of the welding machine before. Stick welding smaw shielded metal arc welding electrodes sticksrods are designed for use with specific current types, either ac, dc and some rods can be used with either. Cte mathematics in welding professional math iv unit pacing guide rational and purpose. Click on popout icon or print icon to worksheet to print or download. Looking at the welding classification tells us that they can both withstand 60,000 pounds of stress per square inch, and theyre both allposition welding rods. Most welding involves ferrousbased metals such as steel and stainless steel. The first two welding rod numbers stand for the tensile strength of the filler material. Revision 01062014 weld filler metal selection chart for shielded metal arc welding smaw for various metal combinations. The tip of a welding wire and filler wire can injure eyes, faces, etc. These exercises deepen a students understanding of our base 10 system. The mig welding electrode is a continuously fed wire referred to as mig wire. Shielded metal arc welding covered arc welding electrodes.
After students have been placed into groups and seated at their pod, follow lesson plan as written. The f number grouping of electrode and welding rod in qw432 is based essentially on their usability characteristics, which fundamentally determine the ability of welders to make satisfactory welds with a given filler metal. Covered electrodes for manual metal arc welding of high strength steel. How to read arc welding rod numbers know about life. Apr 26, 2017 what do the numbers on welding rods mean. The following two numbers indicate the tensile strength of the material in the rod when the weld is stress relieved. The following two numbers indicate the tensile strength of the material in the rod when the weld is. Reference standards some welding standards that may be referenced are. Or youve several projects at home that could do with welding and want to understand what are the welding methods out there youll find the answer to your question using images and videos in this best welding method for beginners, the 15 minute guide. Represent one and twodigit numbers using representations and tell how many tens and ones are in a twodigit number. Welding lesson information naae communities of practice. Whether youre thinking of getting into welding as a job and want to learn more about it. For the manual arc buildup and surfacing of steel gear, shafts, rails, shovel pads.
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