johnk said:
Thanks for all the replies. I have still have some questions as to why i would want to use a deep penetration rod EX 6011 VS a 7018 which is a low penetration rod. I thought deep penetration is good on all welding projects. Why would I want low or med??? Here are some pics of my 3 rd day welding. I 'm sure they would all hold but which weld is the best??? Thanks for your insight....
There are many variables depending on the desired end result. I can't recall exactly where I was taught the five
basic principles (other than having clean rust free and grease free and paint free material) of:
1: The current setting
2: The length of arc
3: The angle of electrode
4: The approach or manipulation of electrode
5: The speed of travel...
Those are
not principles that I can take credit for, but principles taught in classes and in books. As in most things, if you have the core basics down pat, the rest will come easy...or relatively easy. I still hate overhead welding. I've caught too many portions of my body and clothing on fire from doing that than anything else in my life!
Fortunately, as I mentioned previously, new welders come with charts on them that give pretty darn good advice as to the current setting suggested for different rods on different thicknesses of materials. The other items are just learned through practice to where they come as second nature and you don't ever even think about them.
And, to no surprise, not only are different types of welding a bit different (mig, tig, arc, brazing etc.), but many types of metal weld differently and you have to adjust your procedure to them. Seriously, try some 6013 rods on reverse polarity DC for a bit. The rods aren't that cheap. You will be able to lay down a decent bead easier than with most other electrodes. From there, move to different thicknesses of material with the 6013s. Once you feel you have that mastered, move to a 7018 electrode and practice the same. Then go to a 6010 etc. I just suggest the 6013 to start with because it will be the easiest. Then work your way up. When you can lay down a perfect bead, with good penetration, overhead call me.
