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Math needed for welding

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发表于 2021-9-1 23:14:32 | 显示全部楼层 |阅读模式
I am currently taking some welding courses, but it moved straight into more hands on training as opposed to classroom getting used to measurements, welding symbols, blue prints, exc.  Coincidently, I am also taking a some advanced math courses to shore up those skills.  Any recommendations on the type of math I should gear up on?  Trig, Geometry?
Reply:If yer gonna do any layout, you gots ta have geometry.A butterfly without wings, is just an ugly bug



Reply:Geometry definitely, particularly if you do fabricating.  But trig, is helpful, though I can't hardly remember a thing  about it.  Accounting math might be nice....got to keep those books.Esab Migmaster 250Lincoln SA 200Lincoln Ranger 8Smith Oxy Fuel setupEverlast PowerPlasma 80Everlast Power iMIG 160Everlast Power iMIG 205 Everlast Power iMIG 140EEverlast PowerARC 300Everlast PowerARC 140STEverlast PowerTIG 255EXT
Reply:Trig.  Very useful, sine cosine tangent and the like.  Algebra as a pre-req, it's a foundation for solving all sorts of stuff.  If you work in the US, knowing how to convert from imperial to metric measurements can be handy, and likely will only become more so with time.  Being able to apply the correct conversion with the correct math.Being able to take degrees and convert that into length measurements on an arc.  For example a part that is essentially a large arch (30' length of a circle with radius of 150') had brackets spaces every 7.9°, had to be able to use that information to mark locations for the brackets.  Being able to estimate volume, and convert volume into weight.  Very useful if you're dealing with larger items and overhead lifting.I would also recommend knowing how to do math long hand, without a calculator.  Including long division.  Sometimes it's more convent to just write the math out than it is to go get a calculator.  As for weld symbols, I'm assuming that you're located int he US and are learning ANSI/AWS weld symbols.  I would try and at least take a look at some ISO weld symbols as well.  They are similar, but have differences.  Particularly in arrow side vs other side designation, weld dimensions, and intermittent weld lengths/pitch. Be familiar enough that you can recognize which a symbol is, and be able to look up how the welds are called out.
Reply:definatly geometry and when iwas in school at ndscs we had a practical welders math book that was the thing also fractions, decimals  and a very good calculator where you just plug in formula and get your answer
Reply:Start with sound fundementals...some of the guys I attended welding school with couldn't add, subtract, multiple, and divide; even with a calculator.  Know how to perform all these mathmatical operations with fractions and decimals.  Be comfortable converting from fractions to decimals and back.  Someone else mentioned the metric system.  I second this suggestion.  Understand how to convert from one unit of measurement to the other.If you've mastered all this already, then look at geometry.  A few simple concepts, like a 3,4,5 right triangle will enable you to build things square.  If you don't know, ask someone to show you the proper technique for using a tape measure, plumb bob, and spirit level.  Knowing how to use these tools properly will help you avoid a lot of time consuming mistakes.Best way to learn how to read blueprints is to learn how to produce one yourself.  Take a drafting course if you have the time.  There are lots of good reference books on welding symbology that can provide the details you're looking for.

Originally Posted by Beagle Fab

I am currently taking some welding courses, but it moved straight into more hands on training as opposed to classroom getting used to measurements, welding symbols, blue prints, exc.  Coincidently, I am also taking a some advanced math courses to shore up those skills.  Any recommendations on the type of math I should gear up on?  Trig, Geometry?
Reply:Thanks for all the suggestions and recommendations!  I've got the fraction/Dec conversions down cold, and all the adding stuff well in hand as well.  That said, I really like the Drafting course/study idea and that is a great suggestion!  Welding symbols and blueprints as well! Thanks again!
Reply:

Originally Posted by Beagle Fab

I am currently taking some welding courses, but it moved straight into more hands on training as opposed to classroom getting used to measurements, welding symbols, blue prints, exc.  Coincidently, I am also taking a some advanced math courses to shore up those skills.  Any recommendations on the type of math I should gear up on?  Trig, Geometry?
Reply:Look at this and see if you can figure out how to lay it out:  http://weldingweb.com/vbb/showthread.php...091#post247091That will give you an idea of what you might need to know.America Needs AMERICA'S Oil!!!"Global warming is the greatest scam in history ...There is no run away climate change. The impact of humans on climate is not catastrophic. Our planet is not in peril."--John Coleman, Founder of The Weather Channel
Reply:get a copy of "MATH TO BULD ON" its about $25 a great reference when you need to look up the right formula isbn # 0-9624197-1-0
Reply:Simple geometry   - like if you have a round steel disk how do you find the center?Figuring supplies for a job. But there is a hand held calculator made just for welders that can really help you with this task and i have seen it in Welding Journal magazine.Weights of materials - like you are going to load a 1 ton truck with steel plates and you want a safe load.1/4 inch steel plate weighs 10.2 pounds per sq.foot.What would a safe load be?Weights of materials are very important.How large of a tank to hold 10 gallons of liquid. Etc.,.AWS certified welding inspectorAWS certified welder
Reply:All of the previously posted suggestions are excellent, especially those referring to trig, geometry, and drafting.  I would however add a couple of thoughts.  If you can find a board drafting class instead of AutoCADD it will serve you better.  Unless you are using a CNC cutter you will be doing your layout and cutting by hand.  Thus the skills you learn on the board are directly transferable to sheet and plate stock.  If you can take a class in Descriptive Geometry that is taught on the board that will improve your math skills in ways that will serve you best.Another source of info is the Audel’s series of technical books.  Don’t just concentrate on the welding books, but also look at the millwrights, carpenters, and other tradesman books that contain math information.Glad to see someone pursuing your craft with such a focus.
Reply:I need help I need to learn math fast and for free because I don't have the founds to go back to school for it but I was always bad at math really bad and I am realizing that all the good jobs you need to know math can any help me or point me in the direction of some really good websites thank you allSent from my XT1585 using Tapatalk
Reply:

Originally Posted by Beagle Fab

I am currently taking some welding courses, but it moved straight into more hands on training as opposed to classroom getting used to measurements, welding symbols, blue prints, exc.  Coincidently, I am also taking a some advanced math courses to shore up those skills.  Any recommendations on the type of math I should gear up on?  Trig, Geometry?
Reply:having nothing but the basic math fundamentals i would recommend the new guys learn all they can. once you get a little older it's very difficult to absorb.i.u.o.e. # 15queens, ny and sunny fla
Reply:

Originally Posted by smc1118

I need help I need to learn math fast and for free because I don't have the founds to go back to school for it but I was always bad at math really bad and I am realizing that all the good jobs you need to know math can any help me or point me in the direction of some really good websites thank you allSent from my XT1585 using Tapatalk
Reply:

Originally Posted by docwelder

having nothing but the basic math fundamentals i would recommend the new guys learn all they can. once you get a little older it's very difficult to absorb.
Reply:It looks like using math this could be 7 years old  , 2009 and now 2016


Reply:There are lots of online resources - just do a search for learning math and you will get a bunch of hits.  Just don't let anybody sell you anything you don't want to buy.  math.com looks like an OK place to start, but there are many places you can go to that have tutorials etc.
Reply:

Originally Posted by WNY_TomB

..my preference is to draw it in Librecad and then pick points and it says what dimensions are and i can print it out.it is available as a portable app which runs from usb flash drive, no need to install anything.http://portableapps.com/.nothing wrong with doing math but double check math. embarrassing to make math mistakes worst ones are.confusing 1" 1" with 11".doing big stuff and so busy measuring 1/16" that was off exactly 1 foot measuring opposite corners.
Reply:

Originally Posted by docwelder

that's too true. one of the critical things about the fabrication trade is double checking dimensions during the build process. many times i've misread/miscalculated my measurements by one foot or one inch. better to catch it early then after it's out the door. i find my crs especially troublesome between my bench and the saw


Reply:

Originally Posted by WNY_TomB

..always read tape measure just inches like 121" and then feet inches 10' 1".laying concrete block for garage foundation and had somebody helping hold tape measure. i was so proud i had it within 1/8" over like 30 feet. unfortunately i later found out i was exactly 1 foot off. it made everything harder including cutting plywood for roof even after getting the top of walls down to within 4" of square measuring opposite corners, like each piece of plywood had to cut 1" triangle off.one of those things once you do it, you always remember for rest of your life. double check math, double check reading tape measure in particular feet AND inch errors
Reply:

Originally Posted by docwelder

one of the critical things about the fabrication trade is double checking dimensions during the build process. :
Reply:

Originally Posted by Donald Branscom

Simple geometry   - like if you have a round steel disk how do you find the center
Reply:If I wanted to learn the math for pipe fitting what would be a good source to read or what books would be the best to read?

Originally Posted by smc1118

I need help I need to learn math fast and for free because I don't have the founds to go back to school for it but I was always bad at math really bad and I am realizing that all the good jobs you need to know math can any help me or point me in the direction of some really good websites thank you all.
Reply:

Originally Posted by ManoKai

Recommend you watch, learn, and complete the exercises for Early Math, Arithmetic, Geometry, and Trigonometry available online from the Khan Academy. Complete the above Math Subjects in the order listed. If you already know a given subtopic, after checking out the content, press forward.Starting with Geometry is not the best course of action, IMPO, until you are comfortable with addition/ subtraction/ multiplication/ &division for both decimals and fractions. Learning to effectively operate a tape measure and other layout tools, first requires a solid working knowledge of decimals and fractions.As a former volunteer tutor in Math/Algebra, can tell you first hand that Khan Academy + your level of effort/dedication into the "journey" will yield positive results for you. You must invest the time and step through the saturation ~ incubation ~ illumination phases to truely master most challenges in life.Good luck.
Reply:

Originally Posted by Blwaz23

If I wanted to learn the math for pipe fitting what would be a good source to read or what books would be the best to read?
Reply:I keep that calculator on my phone. $20 for the app vs $100 something for the calculator. I use it nearly everyday too. I also use Sketchup to draw and they have a free version.4 - Miller 225 Bobcats2 - Miller 250 Bobcats1 - Millermatic 2511 - Millermatic 2521 - Everlast Power Tig 255 EXTAnd all other kinds of equipmenthttps://www.facebook.com/lmhsteel
Reply:having modern computer,phone and calculator i would forget learning anything except the very basics of math and concentrate on perfecting welding skill.i.u.o.e. # 15queens, ny and sunny fla
Reply:

Originally Posted by docwelder

having modern computer,phone and calculator i would forget learning anything except the very basics of math and concentrate on perfecting welding skill.
Reply:Basic math skill such as addition, subtraction, multiplication tables and division are essential.  Knowledge of algebra & geometry are essential as well.  If you can't do it on your head you need to be able to do it in writing
Reply:I learned geometry in 5 grade, learn to read blueprints so you can do layout work, it can make the difference between you being the guy that's down in the hole breathing shiit all day or the guy up on the deck working in fresh air.https://www.proconstructionguide.com...nd-blueprints/Last edited by CrookedRoads; 07-14-2018 at 10:59 AM.***********************CR
Reply:

Originally Posted by Beagle Fab

I am currently taking some welding courses, but it moved straight into more hands on training as opposed to classroom getting used to measurements, welding symbols, blue prints, exc.  Coincidently, I am also taking a some advanced math courses to shore up those skills.  Any recommendations on the type of math I should gear up on?  Trig, Geometry?
Reply:in my opinion the most important thing you can do it learn the basics.addition/ subtraction/ multiplication/ &division for both decimals and fractions. and know how to use a tape measure. everything beyond that is just tricks.some of the best fitters i have been around only had a 3rd grade educationi am not talking calculator you have to have that **** in your head and have it good, it will make your life a lot easier and make you money
Reply:I so wish I had the ability to retain knowledge as most normals do.  I forget more crap and have to continually relearn crap to get things done.  Shoot in High school I had a hard time with Algebra and Geometry but more so with Algebra and having to write everything out by hand and do all the math took forever for the slow processor in my cranium.  I hated it.  Still do, get head aches from thinking to much at times.  Ok enough sniffling, there are so many great suggestions and information in this thread.Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo.  Hand tools, power tools, welding and cutting tools.
Reply:

Originally Posted by E T

Doing the math in your head will keep your brain alive. All this modern sh*t is handy sometimes, but when the battery is dead it's useless.My brain always works. If it stops working then nothing matters anymore.Eric
Reply:

Originally Posted by Beagle Fab

I am currently taking some welding courses, but it moved straight into more hands on training as opposed to classroom getting used to measurements, welding symbols, blue prints, exc.  Coincidently, I am also taking a some advanced math courses to shore up those skills.  accounting jobs in UAE latestAny recommendations on the type of math I should gear up on?  Trig, Geometry?
Reply:

Originally Posted by Fat Bastard

I find that I use all 4 types of math addin miniusin timesin and dvidin anything else?
Reply:High School geometry has gotten the job done for a lot of years for me, course I was Paroled from HS before Union Teachers came along or even the "New Math" so 2+3 = 5 in my world.  Tape measure and knowing 3 + 4 better = 5 if it's supposed to be a 90° corner will take most weldors thru a week in the real world.  Csquared = Asquared + B squared will handle most triangles and since pocket calculators came along all that square root calculating with a pencil went down the drain.Knowing how to read a ruler is one thing I've seen wanting in young men and women for at least the last 2 decades.  I'm not overly enthused by so called welding instructors spending classroom hours on trying to teach math or ruler reading that should be known and a requirement for admission to the welding class.  Welding symbols are rarely going to be part of a weldor's employment for his or her first couple years.  I favor more hands on time with a O/A torch and a stinger.In 2018 I have yet to find a young person without a Device in their pocket, and that little box will access most layouts and provide an on screen calculator faster than any young person can do the math.  When you're getting paid by the hour no employer wants to invest in your math deficiency, especially when a calculator exists and is available.  Instruction time would be better spent teaching new people about these calculators and how to use them.You should learn to use a newspaper to find the center of a circle as you begin working in a shop, same with using a strip of paper to lay out 4 equally spaced holes around the circumference of a tube.  Half of the job on the shop floor is about getting the job done profitably, or there won't be a shop for long.
Reply:You wouldn't believe how many engineers are completely astonished that I can figure out the size of a blender shaft with a piece of wire. Obviously there is a margin of error due to standard is metric sizing, but all I do is run a piece of thin wire, flat baler string, piece of paper etc around a shaft, mark the same spot, flatten it out, measure between the 2 points, divide by pie, and you have your shaft diameter.... Now this method is very very accurate because 1/16" off actually measures .196" between points. Obviously it won't do thousandths, but if you need to know if it is 3 15/16" or 4" shaft. 3 15/16 would measure 12.37" and 4" would measure 12.566" so huge gap for to guess the correct measurement.This comes in handy when your calipers or special shaft measuring device is 20 minutes away and down 3 stories.Sent from my 2PS64 using Tapatalk
Reply:

Originally Posted by Willie B

Don't forget reconin' guesstimatein', and cipherin'
Reply:

Originally Posted by Country Metals

You wouldn't believe how many engineers are completely astonished that I can figure out the size of a blender shaft with a piece of wire. Obviously there is a margin of error due to standard is metric sizing, but all I do is run a piece of thin wire, flat baler string, piece of paper etc around a shaft, mark the same spot, flatten it out, measure between the 2 points, divide by pie, and you have your shaft diameter.... Now this method is very very accurate because 1/16" off actually measures .196" between points. Obviously it won't do thousandths, but if you need to know if it is 3 15/16" or 4" shaft. 3 15/16 would measure 12.37" and 4" would measure 12.566" so huge gap for to guess the correct measurement.This comes in handy when your calipers or special shaft measuring device is 20 minutes away and down 3 stories.Sent from my 2PS64 using Tapatalk
Reply:I have standard and metric tapes but still need to get one of these.https://www.amazon.com/Muff-Products.../dp/B01NASTL52***********************CR
Reply:Speaking of tapes... you wouldn't believe how many people on job sites think metric and engineers tapes are the same.


Reply:

Originally Posted by ronsii

Speaking of tapes... you wouldn't believe how many people on job sites think metric and engineers tapes are the same.


Reply:

Originally Posted by Virgil5

That kind of thinking should be encouraged.  Given how few people know there are 12 inches in a foot, watching a layout done with an Engineer tape might be very entertaining.
Reply:

Originally Posted by CrookedRoads

I have standard and metric tapes but still need to get one of these.https://www.amazon.com/Muff-Products.../dp/B01NASTL52
Reply:

Originally Posted by jrporter

There are lots of online resources - just do a search for learning math and you will get a bunch of hits.  Just don't let anybody sell you anything you don't want to buy.  math.com looks like an OK place to start, but there are many places you can go to that have tutorials etc.
Reply:

Originally Posted by ronsii

Speaking of tapes... you wouldn't believe how many people on job sites think metric and engineers tapes are the same.
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