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  • Users: profengmen
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  1. profengmen

    Cutting forces for circular tube saws

    I've designed many abrasive cut off saws. The forces exerted are going to depend on a few things: 1) The material being cut. 2) The speed of the cutting blade. 3) The force/pressure of the blade on the tube. 4) The type of blade (abrasive media) 5) Feed rate. I'm afraid you are going to have...
  2. profengmen

    Manufacturing Schedules in Taiwan

    Yup, Been there... been to Taiwan to try and fix the problem too. We spent most of our time touring the foundry and then touring the machine shop. Then we drank a lot of tea and smoked strange cigarettes. When we finally finished with all the crap we spend an hour discussing one small machining...
  3. profengmen

    Buckling of a simple Plate HELP!

    It's always scary when I see these posts. I mean no real disrespect; but, if you don't have a book with these formulas, and you don't know how to apply the correct formula, then why are you doing this?
  4. profengmen

    Simple? Statics

    Corypad, Imagine that....
  5. profengmen

    Simple? Statics

    Funny how you can balance the plate with just two cables...
  6. profengmen

    Rectangular Square Tubing

    I think you might want to consult with an engineer... Get the advice of a Structural PE. What you are asking is painfully easy, and by asking it suggests that you are out of your area of expertise. The structural properties of square tubing or rectangular tubing (there is no such thing as...
  7. profengmen

    Giving Notice of Leaving

    I would not give them any notice, just show up and your other job and they would take a month to find out you were gone. Sounds a little unprefessional and immature to me... but hey, it's your career. As a matter of law you can not give out negative information about an ex employee. The only...
  8. profengmen

    Rectangular Square Tubing

    Rectangular Square?
  9. profengmen

    Simple? Statics

    zekeman, I didn't read the "no deformation" part of the thread... My model assumed deformation, which was stated in my thread. Then again, that's an unrealistic situation...
  10. profengmen

    Tolerance Stackup Analysis

    Hey...Isn't there a $5 charge for anything you could have googled yourself?
  11. profengmen

    Tolerance Stackup Analysis

    Then again, you probably would have had it done by now...
  12. profengmen

    Tolerance Stackup Analysis

    Well, judging from your example, can't you make you own spreadsheet?
  13. profengmen

    Simple? Statics

    I did a quick FEA on a model, a simple plate with three holes and a load point directly in the middle...it's all I really had to go on. As I suspected, there is stress on the third bolt directly perpendicular to the load. The deformation of the plate looks exactly as I suspected it would, the...
  14. profengmen

    Professionalism

    APH asked for ways he can be prefessional in all aspects. Sorry folks, I don't give a rip how good an engineer you are....wearing sandals to work is unprofessional...period. The way you dress indiciates the way you percieve yourself; and if you want to be seen as professional, I suggest you...
  15. profengmen

    Professionalism

    I love it when a thread dies...
  16. profengmen

    Professionalism

    HgTX, Gosh, you bait easily...
  17. profengmen

    Professionalism

    On the other hand, professionalism can be subjective. I see nothing professional at all about wearing T-shirts and sandals to work. I prefer business casual as the least appropriate, shirt and tie is much more professional. I also see it unprofessional to call someone "straw man" for no reason...
  18. profengmen

    Starting a new position - need feedback on how to handle

    There is a book called The First Time Manager by Loren B. Belker. It is not just for first time managers, I refer to it all the time. It's easy reading and has a lot of answers to your questions/concerns.
  19. profengmen

    Professionalism

    Find someone you identify with as a true professional, and always ask yourself what "he/she" would do in any situation. Be it in work habits, attitude, dress or design. Remember attitude is 85% of your success. Skill and education can be learned. Start reading good self help books, always have...
  20. profengmen

    MInimum flow requirement of Submerged Pump

    What would be the cause of the minimum flow requirement for a submerged pump? I was thinking that temperature would not be the issue, as any heat generated woudl be removed by the liquid. But Temperature IS the issue. Submerged pumps need a minimum flow to keep them cool. They will not cool by...

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