Johnny Guilherme

Ron
Can you go through that last sentence “On the other hand…….nearest spec limit”. Now I am a little confused.
Johnny

John
I dont have any links, but an example for you. Just recently we commissioned a 14 head ointment filling machine (fully automated). Anyway we were told (by the manufacture of the machine) that the filling into small tins could be controlled to the nth degree and so accuracy of fill volumes should not be a problem.
During the factory…[Read more]

You are right. Going back to the original posting I noticed Paul mentioned attribute type data and not variable data. I saw the numbers he posted and assumed variable data. Obviously then using np or c type charts would be the answer. Thanks for pointing this out to myself. I am still on a learning curve, having done some quality engineering and…[Read more]

Henrik
Where are youu based???. Could I perhaps get in touch with you.
regards
Johnny

Pierre
Now the word attitude is supposedly what i was wanting to get to in my postings. The wrong attitude with the right tools will never work. People are also just looking out for themselves and their own pockets. Some managers and CEO’s are around just for a while-enough time to secure the future-and so who cares about introducing and making a…[Read more]

Pierre
Not wanting to sound negative, but BM’s and merc’s and aircraft have been around for decades. What philosophies were be used then to experience the quality of the vehicle or aircraft being used.
I think Phil is just trying to highlight that some of the stuff has been around for a while but maybe is being packaged in a different carton. I…[Read more]

Phil
As much as i dont want to agree with you, I suppose I have to agree. I lot of the stuff has been around for years. In my previuos company we had a JIT programme, which then was called Continuous flow manufactruing (CFM), now referred to as Lean manufactruing. So in essence as someone else has written, old wine in new glasses.
The real sad…[Read more]

You can justify WIP by counting the WIP (if possible) and then cost it out per costing given by your costing department. It might not be vary accurate, but maybe count at different times and then get some sort of average wip per work station or department. Once the leadtime is improved then you estimate the future “look” wip and cost this out.…[Read more]

Henrik
Where are you based. have you an e-mail address so that I contact you.
regards
Johnny

Stan
Can you help. I have never really understood why the six sigma. Does this mean 3 sigma to the left of the target anf 3 to the right equalling 6. You mentioned 1.5 sigma which then equates to 3 sigmain total. Why then is it called 6 sigma. Also how does one arrive at the 3.4 dpm once the six sigma is achieved.
many thanks
Johnny

Never heard of it. Hope its not another buzz word. There are so many around that one cannot keep up.
Johnny

Hey Mike how is it going.
I am still looking forward to meeting you. Are you back from the US. I tried to call on your mobile but there was no response. Looking forward to hearing from you.
regards
Johnny Guilherme

Tony
Maybe what you can do is take the attribute and make it a variable by doing the following. Classify the attribute with say the following (if possible): i.e. dark or burnt print, then dark print, then print ok, the light print, then to light a print. You can then assign some sort of number to each of the catogories above i.e. 1, 2, 3 etc.…[Read more]

Minna
I was also looking for reading on six sigma-a college recommended books by Michael L George-look at the “George Group” advert on this website. He has a number of books on six sigma. With regards the training, that I dont know. I am resident in South Africa and dont know of anyone doing training on six sigma.
regards
Johnny

Tita Hi
With regards Q3-you can only do cabability calculations i.e. Cp and Cpk on variable data i.e. data that you can measure. You cannot calculate these indeces on attribute type data i.e. data that you cannot measure. Cp and Cpk are a function of the average of the data and upper spec and lower specification limits. So for attribute type da…[Read more]

Sowmya Hi
You first have to do a capability study on your process. Identify what is to be measured on your cables, then run the process and pull some samples over a period of time i.e. a sample size of 5 is good for capability studies. Then take you average of each sample and the grand average of the whole process and with your statistical tables…[Read more]

Johna, the software that comes to mind is called “Visio”. Its a window based package.
regards
Johnny

Hi Jag. The 10 factors that you talk about-are these machine control parameters which contribute to the quality of the product you are making?? If so, why not run the process for a while and then see if you can cut down on some of these factors. Maybe you will find that some of them can be fixed and never have to be changed over time. This will…[Read more]

Hi Giovanni
If I understand you question correctly, the issue is with holding cost. You would have to estimate at any one time the amount of work in progress (and for that matter finsish goods stock) that is “lying” around and attach a value to it. Holding cost can be calculated. Where I work it is normaly between 15 and 20% of the actual value o…[Read more]