Forum Replies Created
- December 16, 2008 at 9:50 am #65214
would you give me a soft copy of 8D format.
0December 16, 2008 at 9:40 am #65213
pls send a soft copy of 8d format.
ramesh0April 25, 2008 at 12:24 pm #171466
Hi Neha, in my view you need not invest more money for learning this Six Sigma as you can gain much knowledge thro’ your self study…you may require some help for understanding few statistical tech. like DOE / Hypo. but not only the certification helps. i joined in a leading software co. as a full time Six Sigma Black Belt without any certification but i had 9 years of manufacturing ind. exp. & I practiced all quality tools / techniques…now I’m a certified BB – you need to understand various business processes, customer expectations in each processes, failure modes, alternative thinking, possible solutions etc. these things will come once you gain some working exp. i would say that starting a career with Six Sigma without any exp. is a risky drive in our drive as we will not have any exp. in terms of process insight. please drop me a mail at firstname.lastname@example.org in you have any queries.0April 25, 2008 at 10:47 am #65057
The no. of defect opp depends on the total no. of CTQs in your improvement project. for ex. if there are 20 requirements related to your DRE improvement projects, there are 20 defect opp.
hope this clarifies query.
Ramesh0April 25, 2008 at 10:42 am #65056
Pl. try to categorize the project into two with respect to the process availability so that you can do it in DMAIC / DMADV approach. in case of DMAIC, identify the customer requirements for that particular process, you may look at the critical CTQ, map the process, measure the current performance & look for the causes thro’ detailed data analysis / Cause and Effect relationship….you may use various tools / techniques to come up with the solution and finally put some appropriate control measures (control plan / control charts etc / error proofing etc).
for DMADV, you may use QFD, FMEA, etc Pugh matrix to select / optimize the solutions in the life cycle…0April 18, 2008 at 1:36 pm #171295
Can you please tell exactly what clarification you need?0March 26, 2008 at 11:16 am #170065
I don’t think it matters in a big way. If you are trying for different institutes, then it is ok. I got my BB certification with ASQ. This certification is of very good value when compared to others. Why can’t you do it with ASQ after getting good materials? If you need any help, please let me know.0March 25, 2008 at 4:58 am #170031
Please contact me in email@example.comJanuary 30, 2008 at 9:10 am #167969
where r u from ?0December 17, 2007 at 11:21 am #166197
My full name is Ramesh Kumar0December 17, 2007 at 10:19 am #166189
plz contact me in firstname.lastname@example.orgDecember 5, 2007 at 9:35 am #165739
We have lots of tools available for RCA. If you are interested please contact me in email@example.comAugust 23, 2007 at 5:21 am #160311
Hi, I heard AQS does green belt training in Chennai. Can anyone give current contact details of them.
0August 9, 2007 at 8:48 am #159720
hi im ramesh
i want to know the responsibilities of the marketing manager so pls kind do the favour to me regards
ramesh0July 22, 2007 at 4:25 am #158935
Hello thank you for sending msg
I want about analysis of time series0May 26, 2007 at 11:09 am #156593
Since the data coming from your study would be attribute type, we need to assess probability of false acceptance, probability of false rejection and Bias tems. Through which the we can assess the ability of participants rather using the term GR&R which would be more appropiate for continous data type.
If you are interested to on that process…pl mail me for more details.
Ramesh Patnana0April 9, 2007 at 5:51 am #154534
this is clear that six sigma is calculated on process. But can the accuracy of standard time of a M/C can be calculated based on time Study.
What are steps to start Six Sigma Project0December 22, 2006 at 4:14 pm #149460
Practical experience??? I thought six sigma is teachable science.0December 22, 2006 at 8:02 am #61285
Measuring throughput is a good idea. But there is nothing that stops you from moving on with your WT project. The project may only take a little longer because first you have to operationalize the WT measure and install a measuring system.0June 29, 2006 at 5:16 pm #139789
Actually, I want to see how many of them have defects. I am sure we don’t have many defects. May be very few 1 out od thousand but to prove this I need som proof. This study is only to show the record that we have very negilageble defects. Both shift are working on makeing these plates. Usually it takes about an hour to make one so, its a low volume production.
Ramesh0June 26, 2006 at 10:22 am #139594
I would like do a course on Six Sigma certification.Please help me out in this!
Ramesh0March 20, 2006 at 6:01 am #135244
HI, You can implement and maintain ISO9001:2000 in order to put the system in practice. You may adapt Six Sigma methodology to make some breakthrough improvements. Not necessary that your employees need to be an expert in statistics – awareness on some basic tools and techniques would be sufficient to start with. I have seen many HR / Finance (support dept.) personnel in Mfg. industries have learnt and applied many Six Sigma tools and techniques. It cannot happen immediately and it would take some time to spread across. Taking up these 2 initiatives will not give much benefits – I would suggest you to get ISO9001 certification thro’ good implementation and then you can look at Six Sigma implementation……ISO also mandates on Continual improvements.0March 16, 2006 at 4:57 am #135138
In order to test the significance in difference between the 2 groups use 2 sample t test for means and f- test for variances. If p value is less than 0.05 in both the cases, then there is significant difference between the groups perfromance.
If more than two groups (Cavities) are there, use ANOVA and conclude which are belongs to similar family by comparing the p value among the individual cavities
0March 10, 2006 at 6:38 am #134875
One way of putting a proactive measure is that you may organize a periodic skip level meeting with individual employees, preferably with the seniour employees. Thereby we can reduce the skilled employees attrition. The skip level mtg. should focus on employees expectation, their stress level, job satisfaction level, do they need job rotation, compensation, need for recognition, promotion related issues, their personal issues, work culture, etc. It’s good that we reduce the gap that exists between the employee and the Management policy…the gap would increase in a long term and it leads to more attrition level. The forum can include a set of selected group of employees with the senior Management & HR (with or without the functional supervisor).
Ford Motor Co. & other MNCs use this technique & it’s part of their HR policy.
H.Ramesh.0February 23, 2006 at 12:18 pm #134162
Hi, I hope that you are going to use the X bar & R chart;
plz. use the Minitab software in the following path:
StatControl ChartsXbar-Rchartoptions —–> there you can find the options for these 8 tests.
H.Ramesh.0February 23, 2006 at 12:11 pm #134161
I would suggest you to go thro’ various websites that have Lean info’. Pl. visit lean.org, superfactory websites. You will find many interesting case studies, ex. with more details which you may not get it in a training session.
0January 5, 2006 at 4:18 pm #131933
The options that you have is to first of all establish that there is a correlation between the excretion rate and the fish mass. You can do it by finding the coefficient of correlation between the two. if r is significant then you do a hyp test. You can use excel for these tests. These question has been answered several times on this forum.
0December 14, 2005 at 11:08 am #131144
Thanks0November 8, 2005 at 8:37 am #129437
Not Clear. As a customer, I obviously do not know where the particular item I am looking for is stored on the shelves.Also, somebody is saving the job of physically fetching it for me. Why do you say that all this is NVA? Just because Lean says that transport or movement of materials/personnel is waste? I don’t mean to be confrontational but I just need more convincing.0October 8, 2005 at 6:05 am #128085
Yes they have been attending the tollgates and have been expressly appreciating all the analysis and ideas. But when it comes to getting their own hands dirty and pulling the rope hard, some of them are holding back. The way I see it, it is just “inertia”. They are old men and do not want to take risks or get down with the time consuming affair of communicating the changes required to those who matter. The positive is they do not want to look “bad” and be a hindrance to six sigma implementation either.
I am convinced that literature that suggests how leadership council can unwittingly act llike villains and fall from grace will make them want to avoid that fate. Any such lterature reference will be much appreciated.0October 8, 2005 at 5:54 am #128084
OK. Thanks. But what does “Study Variation” really mean? Why is it different from the Contribution value? It comes by default in Minitab.0October 6, 2005 at 7:55 am #127957
Just use TINV function in MS Excel.0September 21, 2005 at 5:48 am #127209
So the lesson to be learnt is that never do a less than orthogonal design. It is almost sure to have confounding which will make the results of the experiment completely invalid. Either do a full factorial or do a balanced fractional factorial as suggested by software or expert. Any exclusions/observations on this conclusion?0September 20, 2005 at 1:32 pm #127156
Thanks for pointing out I am on the wrong track. The analysis is about purchase decision factors and each of the replicates are actually customer “likelihood to buy” ratings on a 1-10 scale. So I think the concern about repeat observations from same run is not applicable here as we are talking about different respondents. But I would really like to understand how you could figure out the problem ” two ways are perfectly confounded with the mains or linear combinations of the mains”. This will help me figure out if the same mistake is ever made again.0September 20, 2005 at 12:19 pm #127149
Here are the trials with response replicates:
A B C D Response replicates
-1 1 -1 -1 8,6,9,8,10,8,
-1 -1 1 1 5,6,8,9,5,3,
1 -1 -1 -1 5,8,6,7,8,6,
1 1 1 1 1,7,4,5,1,7,
1 1 -1 1 1,8,5,3,5,7,0September 20, 2005 at 4:26 am #127141
When did you get BB certification from Allied -signal. I got mine in seventh wave. Just curious?
Ramesh0September 16, 2005 at 6:33 am #126966
Thanks very much for the clear explanation.0September 9, 2005 at 5:19 am #126565
And what if even the incentives pegged at the best performers’ results don’t work to improve the performance of the rest? Call them laggards and fire them like Jack Welch did? If we do, will the culture of fear grip the organization slowly but surely??0September 8, 2005 at 5:01 am #126489
Thanks a lot Robert. Your observations really clarify the points raised. However, I do not understand what you mean by”running diagnostics on X matrix”. Can you elaborate on that one a bit?0September 7, 2005 at 6:36 am #126440
You have suggested that DOE be used for the optimization step. But some people advice that it be utilized while identifying the key x’s. Why so when the key x’s can anyway be identified by MV or Regression? In fact, even the Y can be maximised/minimized once we know the regression equation and have controlable ranges for the key x’s.What do you think?0September 5, 2005 at 5:29 am #126359
Yes I agree that this is the classical retail problem. And thanks for the suggestions! The business benefits of stocking slow moving items is big mainly because VOC has suggested that availability is the key decision factor for consumers in choosing one outlet over another.
But regarding accurate data capture, will a video cam focused on the interaction point/ counter help?? Do mechanical systems like these have value in six sigma measure phase or do they spoil the culture?? Anyon’s experience on this??0September 3, 2005 at 10:17 am #126338
Yes I agree that this is the classical retail problem. And thanks for the suggestions! The business benefits of stocking slow moving items is big mainly because VOC has suggested that availability is the key decision factor for consumers in choosing one outlet over another.
But regarding accurate data capture, will a video cam focused on the interaction point/ counter help?? Do mechanical systems like these have value in six sigma measure phase or do they spoil the culture?? Anyon’s experience on this??0September 2, 2005 at 12:44 pm #126262
We’re doing it on a transaction model where the sales person is also recording the data. I agree that accurate data collection is critical. My initial estimate is that roughly 50-100 items are lost sales and or stock outs every day. But how to ensure that all the data is actually recorded? A sampling strategy will probably not work because finding a truly representative sample may prove elusive. What do you suggest?0August 7, 2005 at 12:39 pm #124421
My take on this. it depends on the company,its size and the infrastructure it has. If it is well established company with Six sigma program well established with Cnampion, MBB,BB and GB in place. The program will survive. If you are the only one/one of few then it is a good idea to diversify into other related areas like Quality assurance, Manufacturing Engineering, Supplier Quality etc. The bottom line is that the company should see the real dollars coming in and not the paper transaction of the money, then the survival of the program has a real chance,
regards0July 8, 2005 at 4:58 pm #122776
The purpose of conducting Attribute gage R & R is to ensure that good parts are always accepted and bad parts are always rejected. You establish a K=1.00 for an acceptable value.. That is the reason why you have 2-3 parts which are known bad parts in the study. I do not know any reason/logic why one should have equal number of good and bad parts in the study. Perhaps you can explain where have you heard this?
Ramesh0June 23, 2005 at 4:26 pm #122056
Please help me toclarify this. It is my understanding that Regression analysis could be used predict values which are within the range of two extreme values (High and low end of the data sets) as long as these data sets are used in generating the equation and R square(adjusted) is higher than 80%. Typically Regression analysis should not be used as a forecasting equation for values outside the data range. Am I correct on this. A master black belt tells me other wise. Any help?
Ramesh0June 23, 2005 at 4:17 pm #122055
Could youe-mailme the avanced Exceltips info. My e-mail is Jkadalbal@bellsouth.net
Ramesh0June 20, 2005 at 4:52 pm #121813
Could you send me a copy as well. Thank very much in advance.My e-mail is firstname.lastname@example.orgJune 16, 2005 at 2:21 am #121498
In any Black belt project, when you are setting up a project charter,there are three things which should be very clear. They are
1. out come should be quantified.
2. it should be measurable
3. it should be accomplishable( do not set up unrealistic goals)
See whether you can use these golden rules in your project and come up with measurables,
Ramesh0June 9, 2005 at 4:52 pm #121035
Simply put,the six sigma addresses efficiency an Lean addresses the effectiveness. Typically, six sigma takes care of increasing productivity,reducing cycle time,scrap etc. The typical micro level. The lean looks at maco,the big picture looking for ways to reduce non value added items.
Ramesh0June 8, 2005 at 4:36 pm #120947
Based on the information, Label the gun as “reference” only and move on
Ramesh0June 7, 2005 at 4:34 pm #120850
I am neither a consultant nor a sales rep to sell services or any product. I am just a quality professioal working as an employee of a company. I appreciate good things when I see one. I was just curious as to the usage of this technique. Just plain and simple0May 29, 2005 at 6:06 pm #120407
What is that you want to accomplish? Does math is interesting for you? you may want to consider Accounting and finance. studying processes sound interesting? try opetrations management?. Computers/information system..Try M.I.S Like other reply you received, ultimately you need to decide your goals and aspirations.
Ramesh0May 29, 2005 at 5:59 pm #120406
Perhaps, I should have explained : there should be a value for each of the torque test.to put them in R & R studies0May 28, 2005 at 9:19 pm #120399
Perhaps, every Testing and Trials need to to be looked into “Is this chase worth the catch” I received my cettified six sigma Black belt from then Allied-signal (Now honeywell). Working in an industry and not in acadamic field,the quest was typically not finessing the Gage R & R but to ensure that the data measured is reliable. In this context,I have been able to obtain a gage R & R up to 30% which is not a bad number since many assumptions go into this study. The variables (like for examples critical features) under destructive studies should not fall into less than 10% R & R catagory(This one was difficult to accomplish). One lesson,I learnt during my studies were the careful selection of samples is very critical. You sdhould never take all your test samples consecutively from one batch. You should introduce some form of variation between the ten samples during the first trial. Hence the first operator checks sample#1 and consider sample #2 as a repeatition of the first one. For the second operator sample # 3 and #4 are very similar to#1 and #2. This way you completed one trial for Repeatability and Reproducibility. This is the reason for taking four consecutive samples from a batch. Now to repeat this sequence to make up the ten samples testing,collect a set of four consecutive samples from different batches.This test would give you around 30% gage R & R. The empirical rule as explained in AAIG manual is <10% gage R & R constitutes 1% measurement variation and 30% constitutes 10% measurement variation.,the remainder being process variation.This was good enough for me as we did not have to spend big bucks to complete measurement system evaluation. Please let us know your progress,
Ramesh0May 27, 2005 at 12:57 am #120301
You can equate the torque testing as a destructive test. Since you can not repeat the test on the same combination again. Typically, the destructive testing in a Gage R & R situations assume taking a set of homogeneous samples and testing them for torque values. If the samples are truely homogeneous,they tend to have similar properties and testing sample #2 is assumed to be a repeation of sample #1 testing. Minitab handles these kind of gage R & R by using nesting options. The success comes by careful selection of samples. Please do not take all your samples from one batch . Take four (if two operators are involved) samples from one batch of components. Repeat collecting your 4 samples from different batches to account for variation from batch to batch and reduce variation within the same batch. Good luck in your studies. Please keep us informed of your progress in this forum,
Ramesh0May 10, 2005 at 8:17 pm #119289
I am about to finish my Master’s in Industrial technology and with a Bachelor’s in Mechanical engineering.
Right now I am working on my thesis which is ” Performance analysis and improvement of a Emergency Department” in this I applying lean techniques and all the statistical analysis required.
I have pretty good knowledge with CAD softwares as well.
My question is after working with the ED and learning about Lean and six sigma I want to pursue my career in this field. As I said I am a fresh graduate….I am pretty much confused how to start my career and I am looking for a Job right now!
All thoughts are welcome, I have seen some very good sugestions here and I also expect similar response,
thanks!0May 7, 2005 at 11:05 pm #119137
One of my friend is studying for BB online with villanova university. He is getting the tuition paid by the company. If you are interested,you may want to check out this information.
Ramesh0May 7, 2005 at 10:59 pm #119136
The one othe two R in R & R refers to repeatability and the other one for Reproducibility. How would you get reproducibility without atleat one more operator. if you are really restricted by only one operator who use the CMM, perhaps you can try the linearity over time and accuracy of the readings with respect to a master. I hope this works for you.0April 22, 2005 at 5:10 pm #118289
I Is it fair to assume no warpage/twisingwhich affects yor dimensions happens with the part after it is removed from the molding machine. Is the delay in waiting for annealing operation has anything to do with final dimensions?. Do the parts go to aneealing without deay?
II Typically the Temp set point shoul have tolerances which gives you the operating range for an incremental changes for your study. Do you measure the temp as read by furnace read outs or do you place a thermocouple closer to the part and can measure the actual temp of the part. Can you make an assumption that Temp read by readouts is uniform throughout the furnace (not a reality often). Is this a vaccum furnace or just an oven ?.
III.You said the annealing the parts to a minimum of two hours. Do you see any significant changes if parts are held little longer or less. Only yo know where you can makean assumptions. Typically,I would study those which make a significant impact (based on brainstorming these issues with experienced people.My experience has tought me the sccess for any DOE depends how wellyou do your home work.
I assume you work in an industry and like many of us do not get free available machine capacity to perform experiments by trial and error many times. I would strongly advice you to talk to shop floor people and get as much information as possible and set your DOE. Good luck
0April 6, 2005 at 6:37 pm #117306
Yea, control chat is useful for me.I am trying do all these things to determine the process capability.I am trying to gather samples to make inferences about some continuous variable like dimensions not a pass/fail.
Please let me know how to start ?? and what would be sample size.
Ramesh0April 1, 2005 at 7:18 pm #117133
Please send me a copy of the report,
Ramesh0March 29, 2005 at 4:37 pm #116966
The typical thumb rule is less than10% for critical features and up to 30% for lesser critical features. The reason behind this would be for10%, only one percent error comes from measurement variation. For 30%, 10% comes from measurement variation. If you look at the total variation, it is a combination of rocess and measurement variation. For all critical features, we would like to keep measurement variation to 1%.0March 29, 2005 at 4:31 pm #116964
Can yoube more specific.What kind of data are we talking about?. How is this being collected now? This would help me give you my perspective
Ramesh0March 3, 2005 at 5:20 pm #60480
go Ahead and send it Iwould be glad tolook at it.
Thanks!0February 24, 2005 at 1:50 am #60469
That was great I am getting some quality responses and i would definitely give you a call once I get a little more advance in my project preocess, and I am right not trying to find out how each and every process and a key preson performs in a ED. Once i get to know more about it I will be coming to know if there are anymore faults in the system and i would be looking into different process how to slove them.
Once i reach this stage i can be more exposed to type of errors i want to get rid off.
Ramesh Pondhe.0February 19, 2005 at 7:44 pm #60466
Hello Dr.Mazen Abdel Aziz Maswady,
Can you please elaborate a bit how my approach should be as my concern is to improve the performance of the ED, and what would be the best appraoch!
thanks.0February 10, 2005 at 9:12 pm #60460
My e-mail address is email@example.com, I would be glad to see thesample charter which could be of a good help thnaks.
0February 8, 2005 at 4:03 pm #114640
I understand you andy but this thing i am doing it for a Master’s thesis and I need an entire big picture and my target areas of improvement would be the ancillary services and the Disposition/discharge process. If there are anyother services that would limit only to ED would be of great help.
thanks!0November 3, 2004 at 9:46 pm #60360
hi niraj i need some insights on six sigma in health care can u give me ur mail id so we can discuss about it mine is firstname.lastname@example.orgOctober 21, 2004 at 3:31 am #60335
I didnt find the SOP for areas inHospitals is there any standard for that please let me know.0October 21, 2004 at 3:15 am #109463
I have data in Two columns and one column is 24hours in a day and the 2nd column is Total No. of arrivals in every Hour of the day for all 24 hours Data, using this I plotted a Bar chart and i got the frequency distribution graph for Hours Vs No. arrival and after I draw this I find out the flow patter, I mean the arrival can be described well by what type of probability distribution to find the best fit line I amtrying to do and I want the equation of that line and I dont want to Regression analaysis but still I want a Best Fit line.
Thanks.0October 20, 2004 at 7:45 pm #109440
I would really like to know what the difference is if theres any and want to find out what and when either will be used.0October 20, 2004 at 7:37 pm #109438
My Understanding says Regression does give a equation giving out a best fit line but what I am looking at is Just draw a bar chart and to fit the frequency to the best possible probabilty distribution depending on the data I have, i hope you understand what i am talking about.
Please let me know if we could do it by anyways.
ramesh!0October 20, 2004 at 5:02 pm #109412
Hello Mr Tim and Mr. John ,
I have sent you the data file and I guess that should give you a better idea of what i am trying to do.Please let me know what all I could do with that Data.
Ramesh!0October 20, 2004 at 1:12 am #109390
If I get your e-mail Id I can defintiely send you the data and it would be of very good help but I would like to try it myself before once.
Ramesh!0October 19, 2004 at 9:08 pm #109383
Hello Mr McD,
I am Loking at the URL you sent.
As I said I am a little bit confused let me explain you clearly what I amtrying to do:
I have data which is in two Columns one is Hours and the second is Total No. of arrivals( could be anything) I have plotted a chart for Hours Vs Total No. of Arrival every Hour and once I got the bar chart I want to draw a best fit line which gives me an expression, a Probabiltity Distribution which I can further use as my arrival pattern and the Data Considered for this is for 15days I mean two weeks.
And I am not able to which can be a best fit form Math point of view?and I can say I dont know How exactly I can Best Fit my available Data.
Thanks,BYe,Ramesh!0October 19, 2004 at 6:09 pm #109371
Hello Mr. Mc. D
I understand your point well but what exactly iam trying to do is I have all the days same no. shifts and same no. of people so what i feel is theres no much variation and i totally agree with you but right now for my analysis and the same will be applied further be Used for Simulation based onthis arrival pattern.
So considering 7 days as Common I want to analayze the arrival pattern and arrive at a certain probabilty distribution.
which i can either do with Excel or SPSS with these I am familiar with so please let me know what I can do I have tried certain methods but I am not happy with the results i amgetting.
Bye!0September 28, 2004 at 1:28 pm #108124
I remember we discussed this under MSA clarifications longback in the same forum.
email@example.comSeptember 28, 2004 at 1:14 pm #108123
I think many companies are wasting their energies by switching over from one concept to other.Like Mr.Suresh Krishna MD of Sundaram Fasteners rightly said,TPM,TQM,Six sigma are like religions.The objective of all religions is to reach God. Any point of time you should not change your religion.When some companies say we got Deming prize,PM Prize & now going towards six sigma,I dont understand what they mean.They are all old wine in the new bottle.If anybody ask me what to follow,I suggest you bring all good things under one umbrella & practice.This umbrella may be TQM,TPM or six sigma.But if you differentiate focus will be lost & you go nowhere.
Ramesh0August 6, 2004 at 1:27 pm #105129
Suggest to conduct a Courier Simulation Exercise in your company and make the CEO as one of the participants. This will make him feel the employees learning about Process Improvement and demonstrating DMAIC methodology understanding.
0May 27, 2004 at 12:36 pm #100828
GMMCO Limited, a Caterpillar Dealer in India started deploying 6 Sigma since September 2002 and is in Commitment phase.
With 4 Dedicated Black Belts and One Master Black Belt, GMMCO is in the process of getting into Embedding phase.0March 19, 2004 at 8:51 am #97084
I completely accept your approach Mr.Gabriel.I can give an example of a motor cycle having 10000 parts (approx) & if we consider each part as one opportunity ,100 bikes will have one million opportunities.Suppose if one critical parts fails means entire bike will fail.In this case one can not say that his product is meeting 6 sigma as DMPO is Just 1 !!!0March 19, 2004 at 8:38 am #97082
In our case ,we always work to reduce number of Opportunities by using concepts like mistake proofing.This will definitely reduce the denominator which inturn increases the DPMO value.Which is better ? Reducing Opportunities or reducing DMPO ?0March 15, 2004 at 1:27 pm #96896
The process is co2 welding of beams & making it as a structure.Each product has got more than 50 welding places.Some places are not visible from outside.All manual operation.It is not like a pressed component where next operation can easily detect the misssing hole or slot.It is easy in mass production.but ours is a capital goods Industry.Hope you got enough information.
0March 12, 2004 at 9:05 am #96796
Thank you for your clarification.I understood that you are a knowledgable person in this area.Please let me know your email ID for further discussions.Thanks.0March 11, 2004 at 10:58 am #96729
The answer to your first question is – Yes you have to establish a frequency( say Yearly) to repeat R & R studies.Because,the study is on the measurement system which consists of user (appraiser),Instrument & the environment where it is used.This may not be uniform throughout the product life.
Answer to your second question is – If it is a family of gages used for same or similar type of measurement you need not have to do it for all gages.It depends on Range,Type ,Construction & application of gage .If all are similar then no need.
I hope I have clarified your doubts.For more details contact me at firstname.lastname@example.orgAugust 28, 2003 at 8:14 am #89316
Call as “Deployment Champion”0April 25, 2003 at 12:25 pm #85243
Thank you very much for your reply. My dilemma is that when you are running 2 level DOE, how many samples do you select for each treatment. Is there any statistical method to calculate minimum sample size for the response at each treatment.