SATURDAY, SEPTEMBER 23, 2017
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Nair

  • Nair replied to the topic Six Sigma projects in the forum General 8 years, 9 months ago

    We can speed up the projects by plucking the low hanging fruits and then taking action on the FMEA items as quickly as possible.

  • Nair replied to the topic OEE in the forum General 10 years, 3 months ago

    hi sam,
    my quire was which is the best method to analyze the down time data
     
    day wise ? like 6-june oee–60%
     
    or Machine wise? like M/c 1 oee 40%, M/c 2 oee 70%
     
    we r facing the problem in entering the out put, down time data ….data
    i was loking at the excel sheet which will ease  the data entry, validation of data (like entering dow…[Read more]

  • Brijesh,
    Can you mail the excel sheet to mee too?Thanks
    Vinod

  • It is QI Analyst 4.1 version and is a wonderware product.
    This is what we are using for SPC at our manufacturing plant.
    Thanks
    Vinod

  • Mr Iam,
    Thanks a lot
    Vinod

  • Mr Iam,
    Could you please elaborate on” (of course your data would need to meet the requirements of the chart type)” please?
    Thanks
    Vinod
     
     

  • Nair replied to the topic Subgroup Question(SPC) in the forum General 11 years, 7 months ago

    Thanks a lot to HornJM & Bill, it was really good information and inputs.
    Let me try out these suggestions
    Thanks
    Vinod
     

  • Nair replied to the topic Subgroup Question(SPC) in the forum General 11 years, 7 months ago

    HornJM,
    Thank you very much for your response.
    Here is a little bit more detail.
    Number of parts produced per shift=8500
    total number of shifts=3(8hrs each)
    Current SPC procedure is to measure the products in subgroups of 5 from a particular lot every 2 hours.The specimens are pulled out at random but from the same lot.
    As per the article…[Read more]

  • Nair replied to the topic SPC Question in the forum General 11 years, 7 months ago

    USL=3 TENTHS OF AN INCH ABOVE THE target and LSL IS  3 tenths of an inch below the target
    QI Analyst software is being used
    Thanks
    Vinod

  • Nair replied to the topic SPC Question in the forum General 11 years, 7 months ago

    Data type -variable(measurement of length in inches.there is a target value and +/- 0.3 inches tolerance)
    when the operators key in the values they punch in the number of points above or below the target value
    sub group size is always 5
    heres an example
    target length 22.5 inches
    operator measurements 1)22.6
    2)22.1
    3)22.8
    4)22.8
    5)22.7
    so…[Read more]

  • Nair replied to the topic SPC Question in the forum General 11 years, 7 months ago

     Hello Everybody,
    Thanks a lot for all the inputs and suggestions.
    Let me give you a little bit more detail
    total number of shifts =3(8 hrs each)& 1 operator each
    approximate number of products per shift 8500 units
    total 25,500 units
    As of now every 2 hrs the operators input measurement readings into the SPC Software(QI Analyst)
    Sub group…[Read more]

  • Nair replied to the topic SPC Question in the forum General 11 years, 8 months ago

    Hi Helper,
    Thanks a lot for your reply and your suggestion.Great help indeed.
    But should the control limits be calculated after longer periods of time like a week or after a significant process change has been effected??or should we go for every 28/32 subgroups??
    Am sorry if I did not get it the first time
    Thanks
    Vinod

  • Nair replied to the topic SPC Question in the forum General 11 years, 8 months ago

    we have 8500 products per 8hr shift with 40 mins break

  • Hi  JL,
    we cut and finish 25,000 hoses at one particular machine a day.
    and the speed we use is about 100 Feet per minute irrespective of the diameter of the hose,stock, or length of the hose
    at present we are working on getting a particular range of speed for all purposes that will reduce the variation in the cut lengths as well as the…[Read more]

  • Nair replied to the topic process sigma calcs in the forum General 11 years, 8 months ago

    KE,
    Its 573-776-2114
     
    thanks
     
    Vinod

  • Nair replied to the topic process sigma calcs in the forum General 11 years, 8 months ago

    Hi KE,
    I somehow could not understand what you were suggesting about reporting the capability numbers in increments of +/- 1, 2, 3, 4 inches(or whatever the tolerances are).How can I possibly report the process capability in increments of the spec limits??
    Heres an example:target/required cut length=22.8,USL=23.1,LSL=22.5(All units are in…[Read more]

  • Nair replied to the topic process sigma calcs in the forum General 11 years, 8 months ago

    Hi   KE,
    Thanks a lot for your help. I shall try them and let you know
    Thanks a million once again
    Vinod
     

  • Hi All,Thanks a million to everybody who helped me out with their fantstic ideas and sugestions,particularly,Mr Iam & Peppe.Thank you very much and I hope to contribute in some way or the other to this forumVinod

  • Peppe,
    Thanks a lot for your suggestion.Let me get some feedback on it from my operations manager
    Would also like to add,that we have several different cut lengths associatedat the same machine,run one after the other
    for example a cut length of 22.6 with a +/-tolerance of 3 tenths of an inch may be followed by ANOTHER hose requiring 34.3…[Read more]

  • Peppe/Iam
    The finishing process is the last step in the process.
    heres a little bit more detail
    Product (one of them for example)-radiator hose(curved)
    step1-extrusion of tube
    step2-knitting yarn onto the tube
    step3-covering the knitted tube by another cover extrusion process
    step4-cutting the extruded hoses to the required cut…[Read more]

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