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  1. DavidMartin

    Ground Water and or Fracture Locating using electromagnetics

    Thank you for the input! I'll check them out. Do you remember how deep the water was? I suspect all the methods mentioned are good tools in locating water but at what depth are they no longer effective? This is a question I would like to answer. The wells in my area are between 300-600 ft...
  2. DavidMartin

    Ground Water and or Fracture Locating using electromagnetics

    Hoping to learn what the general consensus is in regard to locating ground water and or fractures using electromagnetics. My back ground is mechanical but was exposed to the fundamentals of electromagnetics in school so I should be able to grasp the concepts. From internet reading I have come...
  3. DavidMartin

    Wrist pin bushing material

    Thank you for everyones responses. I learned of hydrogen embrittlement this past semester and would never have thought it was a concern due to my assumption hydrogen was not present in the reaction. I'm embarrassed to say I was unaware of the difference between electro and electroless plating...
  4. DavidMartin

    Wrist pin bushing material

    I know it has been awhile since the original post, but figured it was better than starting a new thread. I have eliminated the bushing idea in favor of electro plating and then honing to size. Based on my one semester of materials engineering, nickels properties seem more suited than copper, but...
  5. DavidMartin

    Wrist pin bushing material

    ivymike - Thank you for the link, it will answer alot of questions. As Tmoose points out, this is a bushingless design. Tmoose - I have considered using a brake cylinder hone and slowly increase the bore diameter. This isn't a practical solution anymore considering I will need to remove .050"+...
  6. DavidMartin

    Wrist pin bushing material

    Is C93200 bearing bronze the only suitable material for a wrist pin bushing? The specific application is for a 450cc motorcycle engine. The original design never included a bushing which will be the driving design constraint due to limited material removal from the connecting rod. The purpose of...
  7. DavidMartin

    Wheel Bearing Race - how much interference

    Thank you all for the great resources and info!
  8. DavidMartin

    Wheel Bearing Race - how much interference

    I'm designing a wheel hub for a 4500lbm. off-road prerunner truck with 37in diameter and 110lbm tires. I would greatly appreciate any feedback on the limits of interference recommended between the hub bore and bearing race. Based on the Force and Shrink Fit table by the American National...

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