Hello all,
Fillet or Radius?
So one of the engineers here is adamant that it must be called out as Radius (R .XXX). The machinist and Cadd guy say we can call it a fillet.
What do you call this? Any reliable source that states, yes this is a fillet or radius? (I think it's both depending on the application).
I've looked it up in the machinery's handbook and---> I still couldn't get a concrete answer.
Thanks in advance,
Dino
By name I would call it a fillet. Specified on a drawing I would give it a radius.
I would call it out as a radius, not sure if there is a standard here, but that is what we are used to.
Dec 4, 2015 10:59 AM
Well, in my mind, a fillet is a type of feature. A radius is a characteristic of that feature. Fillets can be variable (multiple radii blended together along the same direction), tangent or not tangent, etc.
In my understanding; in 3d (modelling) the term is fillet while in 2d (drawing) the term is radius. So in case you are making drawings you always put R and not Fillet.
If your drawing is going to be compliant with ASME Y14.5 the engineer is correct. See ASME Y14.5 - 1.8.2
Hello,
"Fillet" is the noun, the "thing" .
"Radius" (abbreviated as "R") along with its numeric value, is a dimension for the thing.
It designates a circular profile (or a spherical profile with "SR") of a given size.
ASME's standards (though it's not binding unless specified contractually) indicate this.
Cheers,
Kevin
You could call it out as R0.250" Fillet if you want (although Fillet would be superfluous). That will make everyone happy.
lol - Then you'll also need to add "Non-Variable or Variable"
In CAD terms it's a fillet. On the drawing it's a radius.
If a machinist is going to machine it, he/she doesn't look for a fillet tool.
fillets & rounds are features of a part, it's size is noted by using radius or radii (R.05, R.125,)
???? what do you order at McDonalds, I'll have a fish Fillet sandwich.
lol,.. would you like to have your R2.0 Fillet Sandwich for inside or outside?
This is like arguing whether the correct term is "diameter" or ""hole".
oh no,.. you maybe treading on a grey definition of "girth".
Good luck finding the "Fillet" dimensioning tool. Whether it is a fillet or a round, dimensionally it is a radius. So what you call it (when talking about it) is irrelevant with regards to how it will be dimensioned. So dimension it as a radius...call it whatever the heck you like.
