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Topic For the Tower welders on here! By aevald Date 04-29-2016 13:58
I stand correctly......you know they say the mind is the first thing to go. Have fun John.
Topic For the Tower welders on here! By aevald Date 04-28-2016 23:09
Well you got a point there John, I guess you better keep that one. Just keep your eyes out for spare parts because if my memory serves me even remotely correct those aren't current production machines these days. Uniqueness and functionality, that's what sets them apart, even from a Harley. Best regards, Allan
Topic For the Tower welders on here! By aevald Date 04-20-2016 05:05
Hey John, can I talk you out of yer bike? TW isn't it? Good luck on your alternative power projects, sorry can't help you with the Darius curves. Best regards, Allan
Topic My collection of macro and weld defect PHOTOS By aevald Date 04-20-2016 05:01
Great stuff Jordan, thank you for making it available here. Best regards, Allan
Topic Humidity and condensation on metal surfaces By aevald Date 03-16-2016 02:57
Hello Clif, short of the heating thing I can tell you this: WD 40 does wonders for metal surface preservation. My teaching partner, among a lot of others, has similar issues with his woodworking tool surfaces and faces "humidity" and "wetness" in a similar fashion to what you are describing. He has been using a sheen of WD 40 on his tools and enjoying surfaces that lack rust and when he wipes them down with a clean dry cloth just before use has also not been plagued with staining his wooden parts. Similar results should be experienced on mill beds, saw beds, and other surfaces that are known to rust and you would just as soon not have doing so. Good luck and best regards, Allan
Topic Job security questions By aevald Date 03-11-2016 06:58
Hello DJR, go to the main page of the AWS website. Use the search function and type in various questions captioned and referring to your question. You should find a lot of information there that you can also "site the source of". This doesn't mean that you would necessarily be in the employ of the same company for an extremely long time as in the past with a lot of companies, but more so indicates that you will be employable and employed for a long time to come if you have the skills and drive to do so. Good luck and best regards, Allan
Topic NR211 Not acceptable for structural?? By aevald Date 03-07-2016 06:52
Hello 46.00, shortly after the Northridge quakes in California there was a lot of inspection and forensic examination of structures and their failures. It was essentially determined that NR211 and other similar welding electrodes were not well suited for use in seismic situations (they were prone to cracking, metallurgically, barring any other discontinuities being found to be at fault) . There was a heavy re-classification of self-shielded wires in particular and this is where the T-8 wires evolved from. They are designed to meet the requirements of seismic applications. I do not believe that all of the jurisdictions in the United States require T-8 wires, most of the west coast does and I believe that other areas that have been judged as being seismically challenged do as well, although I don't know them specifically. That's my take on it and I am sure that others can provide a more thorough and fact based response. Best regards, Allan
Topic manifold By aevald Date 03-03-2016 19:22
We run a manifolded Acetylene system at our shop and it does have shut-offs for each bottle as well as reverse-flow check valves and flash arresters. Best choice: operate the system as it was designed to be run, with all bottles connected.

If we run less than the number of bottles that were designed into the system we shut off that particular feed and we also leave the empty bottle attached and turned off (if you did have a hiccup in the backflow preventer you wouldn't want acetylene coming from other bottles and feeding into an empty one should the valve inadvertently be left open) and also WELL IDENTIFIED as "empty". The main reason not to disconnect and leave the "pigtail" open is to prevent contamination to the system. Yes the theory would be that the reverse flow would prevent loss of product, but that doesn't address possible contamination that would likely occur. How you address this is certainly your call, however, I would error on the side of caution and safety. Best regards, Allan
Topic Need for convex root beads in dissimilar welds btw C-steels By aevald Date 03-03-2016 04:37
Hello AB, I cannot speak for Al, yet I believe that those statements may be referring to centerline cracking that might occur as a result of a "concave" root bead (think in terms of width to depth ratios) might exhibit a propensity to cool too rapidly in the center of the bead and thus promote centerline cracking. Just a thought of mine and not necessarily the correct one. Good luck and best regards, Allan
Topic D17.1 Rejection in Macro in material less that .063" By aevald Date 02-21-2016 19:26
Hello Lawrence, as you have just framed your response, I could certainly see something "after-the-fact" that could certainly match what you just said. Hadn't thought of it in that way but it certainly makes sense and likely the most sense, thank you. Best regards, Allan
Topic D17.1 Rejection in Macro in material less that .063" By aevald Date 02-20-2016 18:45
Hello J, I am going to play the ignorant one here again. I have been led to believe that percentages of inspection related callouts are generally applied longitudinally and not in a cross sectional sense and are either encountered on a weld face/weld root visually, by way of UT imaging, or by way of X-ray.

Since the code that you are referring to is one that I have almost zero in-depth familiarity with nor do I have a copy of it, are you saying that it specifies discontinuity size based on cross-sectional percentages? So in other words you believe that you first have to develop a scale of the image based on dimensions, ie. the thickness of the sheet, and then make comparisons between discontinuities as they relate to material thickness? I am "assuming" that once you have determined an accurate scaling procedure you are then "measuring" the various components of the sample and coming up with determinations of "passes or fails" based on percentages, is this where you are at here?

Sorry if I am not helping with your questions, I am trying to educate myself at your expense just a bit, and likely others who have come across this topic. I'll be watching/reading to see where you end up. Thanks again for tolerating me and best regards, Allan
Topic D17.1 Rejection in Macro in material less that .063" By aevald Date 02-19-2016 23:07
Okay folks, I "finally" read the body of this post, WOW, sorry for interjecting my $.02 here. Way off on the description of what the picture shows now that I have a bit more information of what it is. If I have a better handle on the process covered by this photo and go with GTAW on aluminum, that's certainly an interesting item at the root. Even if this is GMAW aluminum, it's still an interesting little gidget. I would be more interested to hear of it's composition compared to the parent material. Especially since it doesn't appear to share any fusion lines to the surround parts. Best regards, Allan
Topic D17.1 Rejection in Macro in material less that .063" By aevald Date 02-19-2016 16:01
I am going to say that this is "trapped slag" and likely resulted from incorrect technique/manipulation of the rod/gun (providing this is an SMAW/FCAW process). Al Moore is a pretty strong proponent of discussions and examples of how these occur. In short, if this was pushed/forehand progression welded this is a likely result. Have also seen these rather commonly with E7024 electrodes with incorrect amperage application and not enough drag angle. Best regards, Allan
Topic Welder Qualification to D1.1 By aevald Date 02-17-2016 18:14
Why John......., didn't you read the part where there was a set of electro-magnetic backing coils that were being utilized to keep the fluid weld puddle in place. There's a new process where the coils are energized as the weld progression occurs and magnetically places and distributes the weld metal in a 3G plate/joint.

Sorry guys, I couldn't help myself. Best regards, Allan
Topic ASME Sec VIII Div 1 question. By aevald Date 01-15-2016 04:18
Thanks Al, enjoyed the reply immensely. Allan
Topic ASME Sec VIII Div 1 question. By aevald Date 01-15-2016 03:33
Hello Al, I find myself having mini-sit-downs with students on a regular basis anymore explaining the need for standardization of terminology. Before I had access to this forum and other sources I was just happily oblivious to many of these ins and outs. Now you and a host of others have "forced" :) me to reconsider many statements and positions. Thank you to you and others for that. My students may eventually come to the realization that these sort of things can "matter" too. Best regards, Allan

P.S. when I do use non-standard terminology I also provide the correct terminology and go into why it is important to understand the ramifications of the differences. My reason for referring to non-standard terms is to explain to them that various shops that they may end up in may not be up to speed on terminology and thus they are provided with the ability to be in a possible position of change.

SORRY TO THE OP FOR THIS DE-RAILMENT OF THE THREAD!
Topic ASME Sec VIII Div 1 question. By aevald Date 01-14-2016 23:04
Well......OKAY, Allan
Topic ASME Sec VIII Div 1 question. By aevald Date 01-14-2016 20:50
Hello Lawrence, does that mean that some of us are at least slightly vindicated for the use of the word? Best regards, Allan
Topic Need Clarification - AWS A5.4-92: E 310-16 Vs E 430-15 By aevald Date 01-13-2016 18:30
Hello Ranjith, consider that a change in electrode type may not follow the requirements of your WPS, if you are bound by particular code requirements. In any case, you may need to run this by the company engineer if this is OEM production, or you may need to consult with the engineer associated with the buyer of these parts. I have no doubt that you will receive very educated and viable information from a large number of forum members here. But, if your company's procedures don't support an electrode change in the correct manner this information will be of no use to you. Good luck and best regards, Allan
Topic I must be too darn old.... By aevald Date 01-08-2016 00:43
Actually Trackergd, consider yourself lucky. You have both the knowledge of yesteryears and the wisdom to embrace the technology of today. Likely your "kid engineers" don't necessarily care to learn of the prior ways in which things were done, at least not a lot of them. Best regards, Allan
Topic Well, First day of CWI Prep Class starts in the Morning. By aevald Date 12-07-2015 16:31
Good luck Cactus, I'm pretty sure that you'll do just fine. Best regards, Allan
Topic Cracking in base metal aluiminum (MACROS included) By aevald Date 12-03-2015 22:20
If you go the search function on the forum here I'm pretty sure that it has been discussed and has that sort of detail. It's been a long time since I followed it and so I can't remember off the top of my head what the heading was or anything like that. After looking a bit myself I found a little something that might address your question more readily.

http://www.thefabricator.com/article/aluminumwelding/aluminum-workshop-welding-6061-t6-without-filler-metal-choosing-shielding-gas-for-gmaw

Best regards, Allan
Topic Cracking in base metal aluiminum (MACROS included) By aevald Date 12-03-2015 19:36
Hello Jordan, "VERY SIMPLE" answer here: "liquification" of the base metal causes a migration and clumping of certain elements that are generally evenly "dispersed" in the metal and I believe that there is also a "loss" of a certain needed component through volitilization in the arc, upon cooling a crack will almost always occur and if it doesn't show up the weld bead will still be prone to giving out in short order. Filler metal addresses these conditions by re-introducing necessary components to the weld bead.

I know that there are others on this site that can very specifically describe this and in a much more accurate manner, likely they'll chime in here and correct me as needed. Best regards, Allan
Topic Welding Hastelloy to 316L By aevald Date 11-25-2015 07:08
Hello Henry, all of the words that describe you are active verbs: what do I mean? You have truly survived adversity and many other issues (UNDERSTATEMENT). Every time that you reply to a post you provide a very concise and informational description and fact filled response. You don't have to, but you do it anyway and even in the wake of your physical challenges you don't ever stop......BRAVO!

You provide an example that so many others can benefit from, THANK YOU for all that you do for everyone! We have never met face to face and yet you have impacted my life in many ways.... all positive by the way. I continue to pray for your comfort and recovery Henry, simply the best to you. You have done yourself and your family proud. Very best regards, Allan
Topic Plated or anodized flanges By aevald Date 11-25-2015 02:24
Well Brent, there is always a "first time" when some manufacturer decides to do something different but doesn't let anyone else know of their decision. Glad to hear in this case that it doesn't appear to be anything to lose too much sleep over. Best regards, Allan
Topic Text book for all basic to advanced welding By aevald Date 11-24-2015 02:14
Yes Blaster, it does surprise me that there are not more of us active here. But you know what, even on LinkedIn I don't see good mechanisms in place to identify and connect groups such as ours. There are some, but they are still very disjointed and getting them to gel and come together is like pulling teeth without Novocaine. Best regards, Allan
Topic Plated or anodized flanges By aevald Date 11-24-2015 00:18
I'm with Brent here, WOW, I am wondering if these haven't been sprayed with some sort of "clear" varnish/lacquer to help with the prevention of rust. Whatever it is Floyd, do your homework and figure out how "toxic" this coating might be when combined with an arc/heat. You would think that whoever manufactured these would do so with welding in mind and thus allow for that relative to how they have "treated" them, but you never know. Best regards, Allan
Topic Text book for all basic to advanced welding By aevald Date 11-19-2015 19:17
Hello Dennis, I believe that is an age old issue for many welding programs and instructors. We have tried looking at different text books on numerous occasions and haven't been totally satisfied with any of them. There are other options coming "down the pike" so to speak though.

We are finding that some of the publishers are offering book "customization" providing that you have a certain minimum quantity that you are using, there are also options coming up for online book choices that can be had on a "by chapter" basis. That one is possibly going to be out next choice as we have groups of students who are taking welding as a supplement to say a diesel or machine shop program (we don't feel that they should be saddled with a book/workbook combination that is creeping up on the $200 mark).

We also find that some book offerings are very geographically inclined and don't necessarily match what we are dealing with in our specific area. I look forward to the responses that you receive here even if I cannot specifically give you any recommendations personally. Best of luck and regards, Allan
Topic Moderators Must Be Tired of Me By aevald Date 11-14-2015 05:10
Hey there Henry, it is so great to see your post on here. I certainly hope that life has been a little bit less harsh in recent days. It is really awesome to see your post on here and I hope that you are feeling better, even if it's only a little bit. Very best regards, Allan
Topic Moderators Must Be Tired of Me By aevald Date 11-10-2015 23:11
That is definitely not what you or anyone else wants to hear about this site. HE needs to take interest in your comments and follow through to see that what you have told him gets fixed. Unfortunately you are not in the minority with regard to this site and it is unfortunate that such a great resource isn't on the radar to keep it that way.

I guess that some businesses simply don't communicate well within their own structure, that's really too bad in this case, as those who are participating on this site are made-up of so many of the different areas of interest within AWS. I do hope that they start listening and soon. Best regards, Allan
Topic Side Bends vs Root/Face Bends By aevald Date 11-10-2015 06:57
Thank you for that response Al, I was kinda wondering/figuring if that wouldn't be the case or along those lines. Best regards, Allan
Topic Side Bends vs Root/Face Bends By aevald Date 11-09-2015 19:07
I will look forward to seeing how this shakes out for you. Best regards, Allan
Topic A building collection of Macro Etch photos By aevald Date 11-09-2015 18:26
Awesome photos! thank you for sharing here. Best regards, Allan
Topic Side Bends vs Root/Face Bends By aevald Date 11-09-2015 18:04
Hello JDubb816, consider that the "tensile" of bends dictates which mandrel combination is to be used based on elongation factors and not the thickness of those specimens. If you are needing to attempt a "face bend" on some material that is 1" for instance, the correct mandrel combination and the press configuration to make the face and root bends on something of that thickness isn't too likely. Additionally, the neutral axis of a coupon that is 1" thick has likely already put you out of the range of elongation. That's why a side bend on 1" material is cut to a 3/8" thickness. That's my short, non-code supported answer. Others will likely chime in with code specific answers that will site why you cannot do what you are proposing. Best regards, Allan
Topic Pics of Boys at Work By aevald Date 11-09-2015 14:10
Hello Blaster, looks like a good one. Best regards, Allan
Topic Update on Henry: Nov, 2015 By aevald Date 11-08-2015 19:56
That is great to hear, I sent him birthday wishes and hadn't heard back. Was certainly concerned, glad to hear that he has had contact with some of the folks here. Allan
Topic As-welded inspection of fillet welds with galvanizing finish By aevald Date 11-07-2015 23:05
Hello Brent and others, I have been around galvanizing on a number of fronts and for a number of years. When I was located in the Portland, Ore. area I believe that there were 3 major galvanizers that the locals used for their parts/structures/etc. There are so many variables that can add to or subtract from the "coating" that results from the dipping process.

Vat temperatures, how parts are positioned and whether they are shifted during the dipping process and when as related to their removal. How clean the parts were and how they were cleaned prior to dipping and more. How the parts are removed and where and how they are oriented upon removal for "cool down". Just about everyone of these galvanizers would exhibit somewhat different results when you viewed the various parts.

I don't know for sure if In Tension may have been referring to zinc plating when he made comments about the thicknesses of deposited by galvanizing, I do believe that even though these two processes accomplish roughly the same purpose they are definitely different in how they are applied. Personally I have been around the hot-dip galvanizing quite a bit and have never been directly exposed to the zinc plating process that is often used on many fasteners. But, the zinc plated fasteners generally do have a very "thin" coating when compared to the more industrial zinc coatings that result from the hot-dip processes used on them.

Bottom line here: any inspection of the "welding" should have occurred prior to coating, then if there is a provision for knowing the coating thicknesses(as there sometimes are) the appropriate equipment should have been employed after coating for verification.

Great thread folks and very informational, you all got my grey-matter to percolating. Best regards, Allan
Topic As-welded inspection of fillet welds with galvanizing finish By aevald Date 11-06-2015 23:09
Hello In Tension, got to reading and thinking about what you said about adjacent surfaces and taking this to minute detail, etc., you are certainly correct the weld size would "measure less" because of the consideration of all of the adjoining surfaces. Put together a little "sketch" that visually applies, at least from my perspective. Thanks, Allan
Topic As-welded inspection of fillet welds with galvanizing finish By aevald Date 11-06-2015 18:58
Hello hburg rocket, galvanizing "does" add a slight size increase to a weld and additionally if the part is dipped in a manner where the galvanizing can "pool" it can be a considerable increase and also change the apparent profile of the weld. As to judging weld size: it will be completely dependent upon a number of variables of which you would need to assess and judge based on your view.

Was this something that was missed in the initial fabrication phases of the manufacture of these parts? Somebody trying to cover their backside? I am sure that others will have a much more technically correct and code based reply. Good luck and regards, Allan
Topic Welding Industry Research By aevald Date 11-05-2015 04:23
Damn Cactus, appears as though you're de-spamming may have hit a nerve with this lad.
Topic Quick Question: D1.1 New Edition...not here yet. By aevald Date 11-04-2015 18:50
Thanks for those comments John, it was and likely is, pretty much exactly as you laid it out in your post. It was an eye-opener for me too at the time. I was working part time for these folks and teaching full time, as is still the case some of the time now. I feel fortunate to be able to keep a pulse on industry through my continued involvement. Thanks and regards, Allan
Topic Shear counter By aevald Date 10-28-2015 03:53
Hello Brent, wouldn't surprise me to find out that it had come off of just such a machine. All I know is it doesn't require me to use my fingers, thumbs, and toes. Life is good, and speaking of good, how's that boy of yours doing? Hopefully all is well and he's on the mend. Best regards, Allan
Topic Shear counter By aevald Date 10-27-2015 14:32
Thanks Dick, it isn't so much that this sort of thing is necessary in our facility, however, it's also nice to show some of the options that folks might find out in the trades. I am terrible at keeping track of numbers, especially when interruptions often occur, so I need all the help that I can get. I imagine that I am not the only one is this boat. Best regards, Allan
Topic Military to Civilian Certification By aevald Date 10-23-2015 06:05
Yes Dualie, I do understand about the "motivation" issues. It is very ironic that, at a time when companies are screaming their heads off for "motivated" individuals that, even that trait is often few and far between. Well I do hope that you are successful in your hunt. Sometimes it's just a waiting game for things to fall into place. Best regards, Allan
Topic Military to Civilian Certification By aevald Date 10-23-2015 04:34
Hello Dualie, coming from an "educator", have you been to any of the community college/tech schools in your area? Some of them have Veterans Services offices associated with their campus's. On our campus we have one of these offices and they and we try to work together to help with questions, concerns, and the nuts and bolts of how to make these folks feel welcome into our programs. Just recently, at our advisory committee meeting the "helmets to hardhats" program came up, as local companies are looking for reliable folks to put to work. I would think that if you gave them a call (the veterans services office) or dropped by that they might be able to connect you with some of the very same folks that you are looking for. I realize that you may have already been down this road and if so, simply disregard what I have to say. Good luck and best regards, Allan
Topic Not a Weekend I Want To Repeat By aevald Date 10-20-2015 22:21
Ouch Brent, we have been down that road with my middle son. I know that feeling when you get the call. I hope that he heals up real quick and without incident. My son has a titanium rod from his hip to his knee, he broke his femur in 4 places when he had his "get off". Godspeed and best regards, Allan
Topic CWI apprentice? By aevald Date 10-20-2015 16:25
Hello Bowler_Hat, keep this in mind.... for anyone who has knowledge, sharing that knowledge just helps to keep it fresh in the minds of those who share it. Everyone wins! Don't sweat your questions here, most of the folks are glad to be reminded of the various topics and questions that are asked and to comment on them. Best regards, Allan
Topic Pics of Boys at Work By aevald Date 10-18-2015 19:57
Ouch, just hang in there, better to have and not need, than to need and not have sometimes. Best regards, Allan
Topic Welding Marathon! By aevald Date 10-18-2015 16:54
Looks great Shawn, lot of time and effort there, I'm pretty sure, as others have said, you've probably got it in the bag. Best regards, Allan
Topic Pics of Boys at Work By aevald Date 10-18-2015 16:47
Nice picture Shawn, you still "hanging out" on those towers? Kinda spoiled with the view eh? That's good, I kinda like my views a bit closer to earth, getting old I guess. Keep on keepin on and best regards, Allan

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