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Recent content by cobb

  1. cobb

    How to calculate pitch diameter of external threads

    Are you using thread wire's if so what is the thread size? Cobb Scott Cobb CSM Manufacturing, Inc csm-mfg.com
  2. cobb

    Stamping

    Revision: the build up is not on cutter, the cutter will cut but the material is what has to be trimed, so the cutter is not cutting, any suggestions ? Thanks Cobb Scott Cobb CSM Manufacturing, Inc csm-mfg.com
  3. cobb

    Stamping

    I have a stamping project, the material that will be stamped out is a combination of Kevlar/fiberglass that has a thickness of .158" my current problem is that when material is stamped the cutter has to be cleaned each time because of material sticking to it. Questions are: 1) What would...
  4. cobb

    Torque applied to a 8-32 SCHS

    Thanks for the info. Scott Cobb CSM Manufacturing, Inc csm-mfg.com
  5. cobb

    Torque applied to a 8-32 SCHS

    Can anyone tell me how much torque can be applied to a 8-32 Stainless steel Socket cap head bolt that is 3-1/2" long ? Thanks Cobb Scott Cobb CSM Manufacturing, Inc csm-mfg.com
  6. cobb

    Grade 8 nuts

    Thanks TVP for your help. Scott Cobb CSM Manufacturing, Inc csm-mfg.com
  7. cobb

    Grade 8 nuts

    Could someone tell me what is the rc of a grade 8 nut and bolt? Thanks Scott Scott Cobb CSM Manufacturing, Inc csm-mfg.com
  8. cobb

    How much chucking pressure to apply ?

    Is there a formula that you could use to determine how much chucking pressure to use on a 3- jaw hydraulic chuck to ensure that your work to be machined does not slip in the jaws during maching process. Normally its just a guess for us, but I would be interested in knowing if there is some math...
  9. cobb

    G-force

    1) Chuck diameter 10" with 3ea jaws each with weight of 3.0 lbs. 2) Chucking Pressure of 200 psi. 3) Chuck rotation at 2000 rpm. Question ? G-force on each Jaw ? I could be asking the wrong question here ? What im trying to find out, IS there a fomula to figure how much chucking...
  10. cobb

    G-force

    Can anyone give the caculation to figure G-Force ? Thanks Scott Scott Cobb CSM Manufacturing, Inc csm-mfg.com
  11. cobb

    INSPECTION DIMENSION Standard

    What I should have said earlier is that all Dimensions need inspected but not all dimensions on all parts need 100% inspected. I am and have been in the contract job machine shop industry for 20 years and have seen more then my share of drawings come through with all kinds of symbols some from...
  12. cobb

    Calibration Standards

    Andy981 where is this 4:1 standered, I havent seen anything on this, I still ues the 10:1 Thanks Scott Cobb CSM Manufacturing, Inc csm-mfg.com
  13. cobb

    INSPECTION DIMENSION Standard

    Roby, I thought all dimensions on drawings needed inspection? Scott Cobb CSM Manufacturing, Inc csm-mfg.com
  14. cobb

    Concentricity

    GDTGUY thanks for your imput, I agree with what you said 100% I have not yet seen a pratical application to use concentricity, thats why I asked if anyone else has. Scott Cobb CSM Manufacturing, Inc csm-mfg.com
  15. cobb

    Concentricity

    saxon, thanks for the info. Maybe I should have asked my question more clearly, I understand what concentricity is and how to inspect it. Im looking for someone that has applied it to a component and can tell me what the component was and the function of this component upon final assembly. Thanks
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