We also buy a wide variety of materials which may be to multiple
specs (6061 could be bought to ASTM, Federal or Military
specifications). What we came up with for a numbering system is as
follows:
6 digit UNS material designation (A96061 for 6061 aluminum)
2 digit form designator (RD for round, FL for flat bar, PL for
plate...)
Up to 8 digit decimal size designator (1.50, .25X1.00, decimals
rounded to two places)
Finally, a dash alpha (-A, -B) deisgnator to differentiate between
specifications.
Our resulting part number for 1.5" dia 6061 to ASTM-B211 could
be "A96061 RD 1.50 -A, whereas a piece of 1/4" X 1" rectangular bar
to QQ-A-200/8 could be A96061 FL .25X1.00-A.
For the majority of situations, this system has worked very well for
us. Hope this helps.
John Elder
Penn State Tool & Die
specs (6061 could be bought to ASTM, Federal or Military
specifications). What we came up with for a numbering system is as
follows:
6 digit UNS material designation (A96061 for 6061 aluminum)
2 digit form designator (RD for round, FL for flat bar, PL for
plate...)
Up to 8 digit decimal size designator (1.50, .25X1.00, decimals
rounded to two places)
Finally, a dash alpha (-A, -B) deisgnator to differentiate between
specifications.
Our resulting part number for 1.5" dia 6061 to ASTM-B211 could
be "A96061 RD 1.50 -A, whereas a piece of 1/4" X 1" rectangular bar
to QQ-A-200/8 could be A96061 FL .25X1.00-A.
For the majority of situations, this system has worked very well for
us. Hope this helps.
John Elder
Penn State Tool & Die
--- In vantage@y..., "Diane Rowberry" <diane.rowberry@w...> wrote:
> Hello Groupies,
>
> I am looking for some advice. WPI has identified a need to change
our current method of idenitifying some of the raw materials in our
part master.
We have found that for some of our stock is not defined well enough
in the part number. For example, we use alot of 6061-T6 aluminum in
many different sizes and flavors. I have a part number 6061-T6 1
1/2R for 1 1/2" diameter aluminum rod, but within that part number I
might have purchased some with a 200/8 spec (extruded) and some with
a 225/8 spec (cold drawn).
Most of my customer drawings will call for one or the other and in
our system they are both stored under the same part number so the
only way to know for sure what we have is to go back to the purchase
order. Thank goodness we started including the purchase order number
in the lot number!
I see our biggest problem is the 20 space/character limit of the
part number field. I would like to get an idea from the people in
the group that work with the same sorts of issues - what do you do?
How do you number your raw materials inventory? I thought I
remembered some chatter on the list about this awhile ago, but could
not find it in the archives. Any ideas would be greatly appreciated -
off list is ok unless anyone else is battling the same issue. TIA
>
> Diane Rowberry
> Westwood Precision, Inc.
> (425) 742-7011 ex 43
> (425) 353-8945 Fax
> diane.rowberry@w...
> www.westwoodprecision.com