AlexanderSO

Hi, sorry if I´m late to join the talk.  I suggest you use a MIL STD to definie your sample policy, the first step will be to define the type and level of inspection you want to perform and that depends on the requirements of your process, for example you choose a severe inspection when your process had shown bad performance according with the qu…[Read more]

Hi, usually star with a practical exercise (simulation type) applying Lean methodology, this exercise is very helpfull to achieve a relaxed enviroment and motivate the audience, and then star building the Value Stream Map giving the people the opportunity to explain the activities performed by them to rest of the group, and once the VSM…[Read more]

Hi, I believe you are taking my comment a little bit to far, I´m not saying that the inspection procedure is unnecesary, it is requiered because is the stage when a lot of the defects are being detected, the way this inspection is performed depends of a lot of things related with the process, check list or pokajoke like in Toyota or many other…[Read more]

Bill, I think that the problem should be addressed with an statistical approach, and insteed of putting extra effort on inspection you should find and minimize the sources of variation at the source of the defects, in the long term it makes no difference to improve the inspection method allowing you to catch all the defective units, at the end…[Read more]

I think you can use the MIL STD to define the sampling of your process, in the MIL STD you can choose from a wide range of sampling options based on the acceptance that you requiered to guarantee you quality level.

Hi Darrel, I suggets that before starting an argument with your boss check the end user, for this you can use historical data that tells you if the parts over the 0.004 spec value performed well or not and if they did maybe tou need to validate the upper limit of the spec.  Also if the extra digit in the measure really helps you to control the…[Read more]

Hi Rob.
I understand from your post that your final customer isn´t getting defective parts, however following the product road just before the final customer is the quality audit, and this guys are receiving defective products, so you can use them as your project customer.
With them you can build a QFD matrix (Quality Function Deployment or…[Read more]

Hi, if your main focus is to determine if the various set of data fits one to each other you can use a two step method.
The first step is to check the difference between the series usig min square error, for each data calculate as follows (reference value-evaluated value)^2 then at the end add all the values and divide them by the number of d…[Read more]

Hi.
When you improve the on time shipments you are impacting several fronts.
The benefits inside your company could be less space requiered for inventory (due to an increased exit rate, you can quantify this using the typical formula used to define EOQ models, also the free space now could be used for additional money generating activities),…[Read more]

Hi, I just want to add one thing, I have seen your explanation of how you run your replenishment system, and is great, because you are using the effect of the variation, and it allows you to keep syncronized with the demand changes.
This follow up of the demand is one of the reasons to recalculate the Takt Time every period, the other main…[Read more]

Hi, I have some thing to add to the already said.
Is very important to use the effect of the variation in the demand, however you can’t loose sight of the maintain cost.  For this reason I thing one should direct the efforts in a tactical manner, the method I use is this.
1. Do an ABC clasification of your products (I use Paretto’s percentages…[Read more]