DIN ISO symbols

[cowski]

We received a drawing with some symbols that we are not familiar with. I assume that the 1, 10, and 20 values (highlighted in yellow) are a callout of sorts that will associate the dimension with an inspection report. Is this correct or do the numbers have other significance? Also, what is the meaning of the teardrop shaped callouts (35 and 66, highlighted in green)?

The drawing references various DIN ISO standards that no one here is familiar with.

 

[dgallup]

The green 35 and 66 look like inspection report numbers to me. No idea what the yellow symbols mean.

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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.

 

[KENAT]

cowski - as far as I've ever heard the 'obround' shape is not explicitly supported by any industry/national/ISO standard - despite the fact that your company and other CAD vendors have it in your SW software indicated as for inspection.

Maybe ISO TS-16949 last I heard it didn't fully document what symbol to use etc. so may come down to a company standard.

http://www.fcsuper.com/swblog/?p=3066

https://www.ptcusercommunity.com/thread/98812

thread1103-290024
thread1103-325895

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[cowski]

despite the fact that your company and other CAD vendors have it in your SW indicated as for inspection.

The drawing in the first post is from a vendor, it was not created 'in-house'.

Kenat,
Based on the supplied links, does SW = Solidworks?

FWIW, we don't use Solidworks, but our company standard is to use the oval, or 'racetrack', to denote inpsection dimensions. However, every time I've seen the oval used for inspection dimensions, it encloses the dimension to be inspected. I've never seen it as a separate callout attached to the dimension. But, since there seems to be no standard for such, I suppose it makes just as much sense as the oval around the dimension.

 

[KENAT]

Sorry, SW in that context meant 'software' I thought you still worked for Siemens on the CAD software side.

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[cowski]

I don't work for Siemens, perhaps I should start charging them for the advice I give on eng-tips.

 

[dgallup]

KENAT's guess about TS16949 is possible. It allows "special characteristics symbols" that are customer specific. The ones for GM, Ford and Chrysler are well documented and don't match those but who knows what other companies have come up with. That's one the worst part of the TS16949 system, they should have nailed down the symbols and their meaning.

I think this is another one of those cases where you just have to ask your customer.

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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.

 

[CheckerHater]

Looks like HM represents "Significant Characteristic", so you are correct about "callout of sorts that will associate the dimension with an inspection report"

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