iSixSigma

Sphynxras

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  • #56588

    Sphynxras
    Member

    Hello Claudius,
    I also would be very interested in your information and calculations. my e-mail is:  [email protected]
    groetjes,
    Sphynxras

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    #56587

    Sphynxras
    Member

    Learning To See is a wonderful book. We use that book at my company.
    Sphynxras

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    #106065

    Sphynxras
    Member

    Here at Andersen Corp, we also are incorporating lean into six sigma. Lean was not covered well in my BB training, but I am glad that I already had lean training before getting my BB. I always incorporate lean tools with six sigma tools in projects. I don’t see how a BB could possibly be effective if he/she ignores the lean tools. It just is common sense to use lean tools in conjunction with six sigma.
    Sphynxras

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    #105878

    Sphynxras
    Member

    It sounds like Wachovia bank…better known as Walk-all-over-you! It seems like all the big banks are alike….that is why I bank at a smaller bank. Keep fighting them if they still keep trying to slap you with the fees.
    Sounds like they better start listening to the VOC!

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    #103273

    Sphynxras
    Member

    As I was reading the posts on this topic, it brought up a question. How would I handle control charting an extrusion process where a days work would have data coming from 4 separate alloy types? There is no order to what alloy type is run first…the orders are scheduled more or less based on extrusion speed. for instance, a fast runner may be the first order followed by a slow runner to enable the folks at the stretch and saw stations to clear the table in time.
    Also, there are no hard spec limits in this process. We are striving for a goal of 82% recovery, and industry average is 76%. I have month-to-month history of recovery rates for this process. Would I use a one-sided spec of 82% minimum?Also, since sample sizes are 1, I will be using an I-mR chart.
    Any advice would be greatly appreciated!
     
     

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    #101486

    Sphynxras
    Member

    I have dealt with the data as continuous in my most recent project…(process recovery rates, which are percentages), and had no issues treating the data as continuous.
    sphynxras

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    #101206

    Sphynxras
    Member

    What a vague project goal you were given!!!! No wonder the BB’s seem to be having issues! Also, it is imperative to have support from management and resources. I wonder if they have been spending all their time coming up with projects, only to be told the project ideas are not right!!!???
    Sphynxras

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    #100704

    Sphynxras
    Member

    Thanks for the reply, Matt! This will make life much easier! :)

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    #100701

    Sphynxras
    Member

    While we are on the subject of control charts and percentages, I am trying to figure out the best method for charting recovery(yield) rates for a mfg. process-aluminum extrusion. Since I am dealing with a non-normal distribution that encompasses data from 4 alloy types, with subgroup size=1 and independant, can I use the Tukey test? I considered using an IR chart, but the fact that the data failed normality testing made me consider other options.
    Should I use Tukey, or does anybody have any other suggestions?
    thanks!!

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Viewing 9 posts - 1 through 9 (of 9 total)