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  1. ShataCastings

    Min or Max Radius

    Genral tolerance = Unless specified tolerance So once you add Max or Min Radius, it was specified
  2. ShataCastings

    ASME SA336 or SA182 code material specification related

    I guess it refers to a region of the forging that experiences the highest mechanical stress during its intended service, which means different depth(t) will be applied on different parts
  3. ShataCastings

    Abrasion resistant steel

    440C, high abrasion resistant + stainless steel
  4. ShataCastings

    Threaded Connection of Aluminium Components

    Thread inserts like we common used in aluminium castings are more stronger than aluminium threads, you can make the inserts much bigger than thread size, and add multiple groves to avoid to be pulled out.
  5. ShataCastings

    Straightness of a bend on sheet metal parts

    Cant see the thickness, but its a really challenging project for only bending, as I can see thickness according to drawing scale. Use thicker material and grinding after bending is a not bad idea.
  6. ShataCastings

    Can a CNC program malfunction?

    Cause 3# is very rare in CNC program. Machines are more trustable than human beings, 99.999% CNC defects are caused by human factors. In factory, if there are a complex CNC processe involve multipe clampings, especially for large quantity orders, factory will use more machines, each machine...
  7. ShataCastings

    What is the minimum version of CATIA (v5 or v5-6) that runs in Windows 11?

    Windows 11 system, my CATIA is V5R21
  8. ShataCastings

    Cutting oil & mineral spirit after a finish?

    Two galvanization methods, hot galvanization and cold galvanization. Its helpful but not necessary to added anti-rust oil on cold galvanization part, because anti-rust performance of cold galvanization is not stronger enough for severe environment, its salt spray test time is 24-72 hours...
  9. ShataCastings

    multi section catia

    Try to use guides instead of coupling
  10. ShataCastings

    17-7PH

    This is a part we are producing, using 17-4PH H1075
  11. ShataCastings

    300M - 4340M AMS 6419 Hardness All over

    Different thickness will have different effects on heat treatment. Compare the hardness, depth of hardness between part and specimens, maybe helpful to know the reason
  12. ShataCastings

    Rotational Assembly

    No need to worry about fastening force of shoulder screw if make it like this.
  13. ShataCastings

    Design of Threaded Insert

    If you use Electric torque wrench, do not design according to 216Nm, its just a static torque, impulsive torque while tightening must be considered.
  14. ShataCastings

    Broken Steel Casting with crystalized structure -- Root Cause

    It'll be better to machie threads before heat treatment, to reduce stress while machining.
  15. ShataCastings

    What brass or bronze for water couplings?

    Sure, like these
  16. ShataCastings

    Axle failure, thoughts

    1. Check whether the hardness is in correct range. 2. Take a torsional rigidity text in a simulated aseembly condition (if test cost is not in consideration), compare result with theoretical value.
  17. ShataCastings

    Test

    Working well, I hear you from China
  18. ShataCastings

    What brass or bronze for water couplings?

    CuZn40 ( C28000) and CuZn39Pb2 (C37700) are common materials, cast by gravity casting(permanent mold casting) or precision casting.
  19. ShataCastings

    Can a bevel gearbox be used with rotation of housing as well ?

    Good idea Lego(y) Is lightweight of gearbox casing in your next plan? Otherwise its rotation will case a lot of energy consumption
  20. ShataCastings

    Do You Care About Delivering Quality?

    Quality control during desinging is very important, its not cost waste nor time consuming; on the contrary, good quality control can avoid bad design, save cost and money. We used to involved in a project collaborated with an innovation company, its a snow plow. This project was started at...

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