All Around Symbol 1

[Bert13]

I know there is an all around symbol for welds is there a symbol that I can use to specify that a fillet follows a complex edge all around the part?

 

[Tunalover]

Bert13-
ASME Y14.5M does not yet recognize the "all around symbol" for a requirement that completes a closed loop. I have used it, however, to call out paints, finishes, and other requirements and the manufacturers have questioned its meaning.

When you say "fillet" do you mean a fillet weld?


Tunalover

 

[xgrigorix]

Tunalover,

I think that Bert13 means radiused edge when he says fillet.

 

[caseynick]

The standard does allow the all-around symbol in conjunction with a profile callout. You could call out the fillet radius as a "number of places". 32x R.25 +/-.01, for example.

 

[ringman]

Tunalover,

What version of Y14.5 are you using that does not recognize the all around symbol? 1994 DOES.

 

[ctopher]

It is in ASME Y14.5M-1994 Para 3.3.18.

Chris
Sr. Mechanical Designer, CAD
SolidWorks 05 SP3.1 / PDMWorks 05
ctopher's home site (updated 06-21-05)
FAQ559-1100
FAQ559-716

 

[wgchere]

ASME Y14.5M-1994 Para 3.3.18:

All Around Symbol. The symbolic means of indicating a tolerance applies to surfaces all around the part is a circle located at the the junction of the leader from the feature control frame.

It appears the standard only recognizes the all around symbol for tolerance feature frames.

 

[Engineeeeeeeeer]

Not sure if this applies here, but for pipe welds a circle is drawn with it's centre on the corner point of the leader line to the weld (fillet in this case) symbol. If the text height is 3mm , the circle is approx 1.5mm Diameter. The circle over the leader represents ' all around'. (I'm in the UK)

 

[Tunalover]

Guys-
I was aware that the all around symbol applies to tolerances however the spec does not say it can be used for any other requirement.


Tunalover

 

[ctopher]

It is used on weld symbols as Engineeeeeeeeer wrote.
I have seen a spec for it, I will look it up.

Chris
Sr. Mechanical Designer, CAD
SolidWorks 05 SP3.1 / PDMWorks 05
ctopher's home site (updated 06-21-05)
FAQ559-1100
FAQ559-716

 

[wgchere]

The Global Engineering Manual defines it as

the symbol used to indicate a tolerance or a function that is applied all around the part or the surface

I'm not sure what they mean by function. A weld would seem to be a function. Would a chamfered edge also be a function? I think the width of a rectangular groove would probably not be a function, but instead a dimension of a feature. Generally, when I want to indicate "all around" in a dimension I type the words on the line below the dimension.

 

[ringman]

Bert13,

I believe that if your drawing is prepared in accordance with A.S.M.E. Y14.5 1994, you certainly can use the all around symbol. Not sure if you got the message clearly.

 

[Tunalover]

Bert13-
I concur with ringman. We're pulling hairs here.



Tunalover

 

[MechNorth]

One of the important things to remember about ASME Y14.5M-1994 is that they acknowledge that they don't document everything. Non-inclusion in the standard doesn't mean it's prohibited. In this case, the all around symbol is applicable to any control, label, or feature control frame that is shown on an edge view and is contiguous (not the same as continuous). Make sure that the drawing clearly indicates (or refers to another document which clearly indicates) that the drawing is per ASME Y14.5M-1994, as the Y14.5-1982 may not have the same all-around.

Jim Sykes, P.Eng, GDTP-S
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