【转帖】all around symbol

yang686526

all around symbol
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?
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
tunalover,
i think that bert13 means radiused edge when he says fillet.
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.
tunalover,
what version of y14.5 are you using that does not recognize the all around symbol?  1994 does.
it is in asme y14.5m-1994 para 3.3.18.
chris
sr. mechanical designer, cad
solidworks 05 sp3.1 / pdmworks 05
asme y14.5m-1994 para 3.3.18:
quote:
all around symbol.fff"> the symbolic means of indicating a tolerancefff"> 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.
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)
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
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
the global engineering manual defines it as
quote:
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.