Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by vanci

  1. vanci

    Weld clad hardness

    I am not familiar with API, so I have to ask why would hardness testing be required for I625 cladding? In my experience 625 is deposited for corrosion resistance not for wear resistance.
  2. vanci

    Welding Inconel UNS 6625 to Low temp Carbon Steel (A333 Gr6)

    How are you seeing lack of fusion in the cap when performing a root bend? Your description and picture are in conflict of each other. If the lack of fusion is in carbon steel side of the root as it appears in your picture (root bend or side bend), it appears there is missmatch at the lands. I...
  3. vanci

    Question about filler materials

    In my opionion, altering filler metal types with in the same F-number grouping is the same as altering base metals of the same P number and expecting the the final product to meet all design requirements. As others have stated, the WPS is not the only document that needs to be complied with.
  4. vanci

    How can weld full penetration thickness 1.6mm by GTAW manual process

    Welders can also be "rented" along with the orbital welding equipment if your shop does not have the skill level to operate.
  5. vanci

    Why is Aluminum Welding so Vulnerable to Porosity But Steel Welds Are Not ?

    I think we got off topic. To answer your initial question which I think has already been done is: Aluminum and some of its alloying elements are more reactive with the envirnoment/ atmosphere on a molecular or atomic level than steel especially when heated to melting temp. As far as your...
  6. vanci

    Why is Aluminum Welding so Vulnerable to Porosity But Steel Welds Are Not ?

    I agree your cleaning is sufficent however, I would consider trying denatured alcohol or use only acetone. Also, I see no info regarding joint design. Are we talking open root grooves, fillets, seal welds, in plate or pipe? What is the material thickness 1/16" or 1" or ...? This all plays a role...
  7. vanci

    Aluminum Grade and Hard Coat Anodize

    Good Day, I have a project to design a multi piece, circular, aluminum track in which a piece of equipment (approx 50lbs) will travel on. The current material is a 6xxx series aluminum that is tempered but uncoated. Manufacturing shop has told me they would like more wear resistance built in to...
  8. vanci

    dirty aluminum

    I have used a very small tapered carbide burr with a pneumatic pencil grinder for removing material/ slag in hard to reach areas. Pick up a Dremel at the local hardware store.
  9. vanci

    Weld process for fillet welded lap joints in sheet steel

    Ron reccomended GMAW process but listed SMAW electrodes. For GMAW use solid wire, no larger than .035" diameter, preferably .023". 100% agron shielding gas or 75/25 mix with CO2.
  10. vanci

    Weld process for fillet welded lap joints in sheet steel

    How long/ diameter are the welds? GTAW process is widely known to cause distortion. If you are set on using GTAW start trying pulse. Based on the info above, I do not see any reason GMAW or SMAW would not work here. Either process should produce less distortion.
  11. vanci

    Welding Stainless Steel to Maintain Corrosion Resistance

    What is the history behind limiting heat input to 60kJ/in the welding of stainless steel (TP 304) to prevent sensitization/ maintain corrosion resistance in the as welded condition? Is it related to grain growth or ferrite? Thank you in advance.
  12. vanci

    Pipe Welding with Lincoln STT

    I have witnessed 100% penetraion of a root pass with 1/8" land, no gap on 304 in 2G position using STT. It appeared thicker than 1/8" would have been possible. Wall thickness was over 1". Most of the STT parameters I have seen were in synergic mode using a tri mix shielding gas.
  13. vanci

    Horizontal (PC) or Overhead position (PE)?

    I would say horizontal. Check ASME Section 9, however if this is truly an EN standard as the title implies - Good Luck.
  14. vanci

    Weld Symbol Clarification

    The answer to whether or not to use filler will be dictated by the Welding Procedure Specification (WPS)that will be used on that joint. The WPS should be selected based on customer requirements and any national standards (ASME, API, AMS, AWS, MIL, etc...) you will be welding to and/or any NDE...
  15. vanci

    347 Stainless steel Sheet metal qualification WPS

    Perhaps a solidification/ fusion line?. By stating "no crack indications were found" did you perform visual inspection or dye penetrant inspection? If the coupon passes mechanical testing, the weld is most likely sound. Lastly, you could attempt a side bend then dye check the cross section of...
See more

Part and Inventory Search

Back
Top