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  1. AmeristarQA

    Material recommendation

    I also forgot, the hardness was determined by comparing the hardness readings prior to zinc plating, and retesting them after plate. The function of the part has also shown that something is making the insert softer.
  2. AmeristarQA

    Material recommendation

    No, we really haven't looked into any other coatings, unfortuanly our customer is only willing to pay about $.05 a piece for these. So we are trying to stay away from expensive coatings. The part size is also .250" x .250"
  3. AmeristarQA

    Material recommendation

    Does anyone have any suggestions for a material that I can use for a project that I am working on. We are currently stamping a grip insert out of 1075 spring steel, then heat treating it to 60Rc, finally we zinc plate the part. The problem is that 60 Rc is as soft as we can be for this to hold...
  4. AmeristarQA

    Measurement Scanners

    Recently the owner of our company, has been pushing for an optical scanner, such as a "Fabrivision" or "Micro Vu." I am curious to know if any of you have one of these or similar machines, and how they work, what kind of accuracy and precision do they have, etc. Also how do they with stand shop...
  5. AmeristarQA

    I need Statistical KNOWLEDGE assitance and FAST!

    There is also C=0 sampling plan that was derived by a guy named Squeglia (not sure if thats spelled right), which is based on the Mil-105. His tables show different sample sizes based on the lot size, and the Certainty you are looking to achieve. I think this is what eddiewdi is refering to.
  6. AmeristarQA

    "Critical" or "Inspection" dimensions -- useful or waste of

    I think whether it needs to be on the drawing is up to the manufacturer and their procedures. For us, the print and the operations routing is the only work instructions we use. It really comes down to what works for your company.
  7. AmeristarQA

    "Critical" or "Inspection" dimensions -- useful or waste of

    Im my opinon even though you are only verifying a suppliers inspection report, if you are checking the part you should verify with the critical dimensions. Also because dimensions critical to function are usually held with a much tighter tolerance and will give you a good indication of your...
  8. AmeristarQA

    Surface Finish Callout

    I recieved a print from a customer and they are requesting a surface finish, and all the specify is 8.20/C I am not familiar with this, is there anyone out there that recognizes this?
  9. AmeristarQA

    Gage Calibration

    I think I got a good Idea as to what I need to do. These are mostly machinist squares that our operators are using to monitor the bends on their parts as they are running.
  10. AmeristarQA

    Gage Calibration

    During our last ISO Audit, our Auditor cited us because we did not have our Squares, calibrated. Employees use these to monitor the angle of the parts after forming or bending. I have always used the rule if you are making a decision about the part based on the measurement you are taking then...
  11. AmeristarQA

    How does Y14.5 call out through holes

    Heckler The hole is a .375 +/- .010 hole. through .250" inch aluminum. On other customer drawings I have seen it noted as a thru hole. The hole is being created by using a punch press
  12. AmeristarQA

    How does Y14.5 call out through holes

    I have a part I am working on that is .250 thk aluminum. The problem I have is that when I pierce the hole I am out of the general tolerance on the bottom due to the blowout. My customer wants to reject this, The print is interpreted using Y14.5M-82. How would this be stated on a print that the...
  13. AmeristarQA

    GD & T Thru hole callout

    I have a part I am working on that is .250 thk aluminum. The problem I have is that when I pierce the hole I am out of the general tolerance on the bottom due to the blowout. My customer wants to reject this, The print is interpreted using Y14.5M-82. How would this be stated on a print that the...

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