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  1. theedudenator

    Material suggestions for spherical bushings

    These are my parameters. Corrosion resistant Actual stress through design is low, but there is a contact stress that could cause deformation. Materil Rc40 and harder solve this. I was looking a stainless steel type material that can be heat treated to Rc 40 min. I was looking at 440C Is there...
  2. theedudenator

    NPD Process Toll gate approvals

    I am looking for some tips on handling phase type approvals in a NPD environment. Any suggestions?
  3. theedudenator

    Weld repairing a Quenched and Tempered cast steel

    I have a steel casting that is quenched and tempered and then machined Weld repairs were performed after the machining. I am assuming the casting should be re-heat treated. Is it typical to just re-temper? or a full Q&T? Is there a time frame to complete this after the welding is performed...
  4. theedudenator

    Is there a fatigue factor when calculating cold vs hot rolled designs?

    I am aware of some of the advantages in cold vs hot rolled products. This is what I have: 1050 steel shaft, currently cold rolled and turned down to size, and threads added. Possible savings in switching to a hot rolled product. The UTS/YTS of the hot rolled product is less, but still within...
  5. theedudenator

    Shaft datum as A-B set as primary control within A-B

    If I have a shaft that has one end set at -A- and another feature set as -B- I then define my primary for other features to reference A-B Can I set a control to define the position of B in reference to A? Or would this not be acceptable since A-B is the datum for other features.
  6. theedudenator

    Primary datum as a sphere?

    Imagine the a tie rod end. The sphere component has a shaft protrusion. For functionality in the assembly, the sphere is the primary datum. If I called out the diameter of the sphere as the datum would be it be a center point? Or a set of perpendicular planes?
  7. theedudenator

    Datum selection based on manufacturing or upper level assembly

    Just wanted an opinion on this one... This is my thought on the subject. Plate with a hole in the center. The center hole is created by holding the bottom surface and 2 sides. The plate is assembled by placing a bolt to the hole and clamping against the large bottom surface I would do the...
  8. theedudenator

    How to specify a cone as a datum

    How would I call out the centerline of a cone as a datum??
  9. theedudenator

    Surface finish after nickel plating

    Can someone explain the expected change in surface finish after a part is subjected to electroless nickel plating? I would expect the finish to measure a bit rougher.

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