standard for obsolescence of a part on a charted drawing
standard for obsolescence of a part on a charted drawing
(OP)
we have numerous charted drawings and on occasion a part on the drawing will go obsolete (no usage). The current system has us either removing the part from the drawing or marking a line through it in the chart.
I've not been able to locate a reference to a specific practice within the ASME standard - any suggestions?
I've not been able to locate a reference to a specific practice within the ASME standard - any suggestions?





RE: standard for obsolescence of a part on a charted drawing
Chris, CSWA
SolidWorks 13
ctopher's home
SolidWorks Legion
RE: standard for obsolescence of a part on a charted drawing
We have charted part drawings that will have a table of part numbers and their attributes (pn, description, material, supplier, supplier pn....). typically these are used for nuts, bolts, screws, washers, or other commodity items.
RE: standard for obsolescence of a part on a charted drawing
I fail to see the logic of putting logistical information, like whether a particular part is currently being produced and used, on the field of a drawing. That information belongs in a computer database somewhere.
I especially fail to see the logic of removing a part from the drawing when it becomes obsolete, thereby destroying information that will be very expensive to replace when you get an order for the obsolete model, or need a new part for a new model that happens to be a duplicate of the obsolete model.
Mike Halloran
Pembroke Pines, FL, USA
RE: standard for obsolescence of a part on a charted drawing
If it's a change on your chart to remove a part, draw a line thru it.
Chris, CSWA
SolidWorks 13
ctopher's home
SolidWorks Legion
RE: standard for obsolescence of a part on a charted drawing
If it is a tabulated drawing, why should anybody care? The decision of what to order comes off the BOMs. If I am fabricating stuff off of a tabulated drawing, inevitably, I will not be fabricating all of the pieces shown. This could be because the part is not required, or because there is an adequate supply of pieces in the warehouse.
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JHG
RE: standard for obsolescence of a part on a charted drawing
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: standard for obsolescence of a part on a charted drawing
If an item is obsolete, then you need to remove it. How soon does the item need to be removed? Each company has a different criteria. At my previous company, an item will be removed if it is inactive for three years.
But it is true that you do need to remove an obsolete item. Otherwise, this item will stay there forever. That is not what you would like to see. Whether you remove it or strike through it, it is up to you. With a CAD drawing, it is as easy to remove an item as it is to strike through it.
Personally, I prefer not using tabulated drawings.
Best regards,
Alex
RE: standard for obsolescence of a part on a charted drawing
Not using something for a while is different from its being obsolete.
RE: standard for obsolescence of a part on a charted drawing
Agree! But one has to define what is definition of "obsolescence"?
Best regards,
Alex