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  • Users: coolbreeze
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  1. coolbreeze

    Bearing Design Assistance

    Looking for a firm that specializes in bearing design. To much to learn in to short a timeframe. If anyone knows of a reputable engineering firm with expertise in oil field bearing design, please provide leads. Houston/Southwest LA area preferred.
  2. coolbreeze

    Induction hardening 4140/4340 with corrosion protection

    Greetings, I am working on a project that will require a case hardened hollow shaft (100mmX77mm) The case depth will be about 5mm. Can I corrosion coat the shaft afterwards with a zinc phospate or Xylan coating successfully? I've just not tried this before and I am wondering if it will still...
  3. coolbreeze

    Rotating a liner during cementing

    I was hoping to quantify the torque required to turn a 7-5/8 39lb/ft (ID-6.625) liner in an 8-1/2” newly cemented hole. Assume no inclination in the well bore. This is not a special case; I just want to get the formulation down. From dynamics we know that T=I*ω. The moment of inertia is not...
  4. coolbreeze

    High Percision Vacuum Gauge

    Has anyone ever had a problem with vaporization of a curing agent with an epoxy mix? After mixing our chemicals together, we vacuum to remove entrained air. We are having problems with gas(air?) bubbles that remain trapped in the cured structure. The vapor pressures of the curing agent are...
  5. coolbreeze

    Hydroforming Tubes

    Greetings Automotive enthusiasts, I have been thinking about an alternative to the cold working processes that my company uses to form pipe and I've read a little about hydroforming. I was hoping that someone has expierence in this area. We expand pipe circumferentially inside another pipe...
  6. coolbreeze

    Vibratory Stress Relief

    After reading an earlier thread on vibratory stress relief (VSR), I am intrigued about the application as it applies to cold worked low-alloy steel pipe. Meta-Lax is one company that has applied VSR with repeated commercial success. Their applications are specific, that is for relieving...
  7. coolbreeze

    Has anyone out there ever put on an aircraft antenna and found the mul

    Has anyone out there ever put on an aircraft antenna and found the multiple support reactions using superposition methods?
  8. coolbreeze

    Dead Oil Patch Service Company?

    Has anyone out there ever heard of Pathfinder? They used to be the Logging While Drilling part of Halliburton, but were divested as part of the merger between Dresser and Halliburton. My fear is that the company is on the way down and I would like some inside information about the quality of...
  9. coolbreeze

    Sheetmetal Stress

    I want to calculate the stress in the bend of a sheet metal part under load. Any Ideas? I can not model it using an FEA program and I will not treat it as a beam. Thanks...
  10. coolbreeze

    Torque effects on screw stress

    I understand that putting torque on a fastener helps distribute external loads, but that doesn't seem to come across in my calculations for the stresses. When I calculate a bolt pre-load, I add it to the external tensile loads and can't seem to get a reasonable safety factor. How do you...
  11. coolbreeze

    Statically Indeterminate Problems

    Any good software for finding multiple support reactions to statically indeterminate problems?

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