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  1. DJKeng

    Using battery charger as power supply???

    Will an input 112ac battery charger w/12v 6amp output give the same performance as a 12v battery to operate dc motors?
  2. DJKeng

    Help looking for solid info.

    Where can i find published minimum yield and tensile for A513 Tube A569 HR Sheet I'm having a hard time finding consistant values. Please keep in mind i'm looking for minimum i.e. lowest grade. Please site your source and intenet link if possible. thanks so much
  3. DJKeng

    CATIA TO PRO-E IMPORT

    Wildfire 3.0 62 Mb files Catia version unknown
  4. DJKeng

    CATIA TO PRO-E IMPORT

    I'm trying to open several catia files in Pro-E. I have it them in both .igs and .stp formatts. I've only been able to open one file. With the rest of them my screen freezes up and the applications show "not responding". Is there a trick to opening thes files?? Any of your experience would...
  5. DJKeng

    Does Styrofoam expand?

    Ahhh, i was curious what you were up to. Don't worry about it this sounds like no problem. The epoxy is sticky yes? No problem, as long as what you make off of the mold has an overall tolerance of +/- 1/6". It sounds like you'll have a tougher time controlling the thickness of the epoxy! GO...
  6. DJKeng

    I don't want to work overtime!

    Perhaps the company is assuming that you would like the option of overtime w/ pay. They may be using this as a way to attract you!
  7. DJKeng

    Does Styrofoam expand?

    CTE is 38.9millionths of an inch / inch * degree F. So a 30 degree diff would yield: .01167" expansion for an inch long part double that for two inches triple it for three... i think you can take it from there. This assumes the foam was formed at 40deg F. Your epoxy shell will also expand...
  8. DJKeng

    Coil Steel Defects

    Hi all, I went to our supplier today and saw some strange effects on the cold rolled product. The defect is on 1008/1010 18ga crs and it looks almost like the steel has splintered on one side. A sharp edge about two inches long and 1/4" wide and less than .005 thick can be picked at and...
  9. DJKeng

    Mechanical Properties of 6105-T5

    I've been unable to find any tensile and yield strength listed for this alloy and temper of aluminum. can anyone point me in the right direction?????
  10. DJKeng

    backing out of a job offer

    Fedral law controls such measures. I suggest you look at the BLS.gov website.
  11. DJKeng

    How do I get around getting components from non QS/ISO suppliers?

    Thanks everybody. Pat* ;) * eng-tips, where rubbing bruised egos comes first.
  12. DJKeng

    How do I get around getting components from non QS/ISO suppliers?

    Ok. I looked at your original post again. I see what you're saying, but a "middleman" who's QS or ISO will need to be able to grant the same deviation as we would need to. They would experience the same problem. However, maybe they've face this situation before w/ other customers...
  13. DJKeng

    How do I get around getting components from non QS/ISO suppliers?

    We are an OEM supplier. We have a non-critical; (non saftey, not class A) that i've only been able to find supplied by non-QS/ISO suppliers. How can I get this component into use in my company? We could have injection dies built for production, but our time is now very limited and I really...
  14. DJKeng

    WHAT IS THE DEFINITION OF A CLASS A SURFACE?

    Can anyone give me more specific info?
  15. DJKeng

    maximum torque spec. for screws

    wow thanks for the imput.
  16. DJKeng

    maximum torque spec. for screws

    Does anyone know of some ref. materials where i can find the maximum torque spec. for screws threading into tapped aluminum plate? I realize I could do this by experiment but I really don't have the time.
  17. DJKeng

    Designer seeking Mfg. input

    That would work, but adds another part. But that solution does eleminate a leak path... A cost analysis would need to be done. Hmmmm... thanks all.
  18. DJKeng

    Designer seeking Mfg. input

    I don't know about the electrode material. I was really just wondering about process capability. I googled all over for edm references but found nothing concerning sharp corners within blind holes.
  19. DJKeng

    Designer seeking Mfg. input

    Cast pump design(simplified) is currently 3 piece design. I.E., a housing with a through hole and a seal w/ endcover at both ends. I'd like to be able to eliminate a leak path and save money by making the pump a two piece design. I.E. one housing with blind hole and one end cover. A sharp...

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