general indications roughness

[Saso93]

Good evening,

At work I came across a drawing on which this indication is present. We're talking about 2d of fried castings. In general rules there is an indication of the roughness of the processed surfaces, while in a separate pane I saw this indication in img.
I interpret it as follows: The removal of material in general is prohibited (except in the processed areas which are clearly indicated by a color code) and any manufacturing process of the component is accepted that guarantees a maximum roughness of 32micron (indication between quadre prentises).

is it correct or am I reading wrong? Unfortunately I do not understand this indication.

thanks in advance to those who will respond.

 

[TECNOMODEL]

View attachment 67429Good evening,

At work I came across a drawing on which this indication is present. We're talking about 2d of fried castings. In general rules there is an indication of the roughness of the processed surfaces, while in a separate pane I saw this indication in img.
I interpret it as follows: The removal of material in general is prohibited (except in the processed areas which are clearly indicated by a color code) and any manufacturing process of the component is accepted that guarantees a maximum roughness of 32micron (indication between quadre prentises).

is it correct or am I reading wrong? Unfortunately I do not understand this indication.

thanks in advance to those who will respond.

Perhaps I miss something not seeing the design as a whole, apart from the use of square brackets it seems to me the classic general indication that you normally use for roughness.
I imagine it is also a dated design, because the indication made in that way is incorrect, now in the brackets no longer has to enter any symbol, only remains that outside the brackets that indicates the degree of general roughness.

 

[MassiVonWeizen]

it is definitely an old-fashioned design or maldestrately made with outdated regulations (the brackets are hand drawn as you see from the lines). I believe that the applicant refers to the roughness of 32 that does not have the closed triangle.
by memory the open triangle means that there is no need for a particle removal process, but it is a symbol I never used so I could say a stool. I know that we had talked about what is meant by removal of trucile on laser cutting, who has patience can look for the discussion.
However the triangle with the circle does not mean that the removal of material is prohibited, but that the general surfaces are crude i.e. without processing; then there are surfaces that will have a specific roughness of 32. This says that symbolism, the part of the "color code" has no meaning.

But I wonder why not discuss it with colleagues. .

 

[asblo]

generally in the drawings of the details from foundry there is the symbol with the circle out brackets that represents the whole surface of the piece as it comes out from the casting. then in the drawing will be indicated on some surfaces with the 3.2 symbol that must be filmed by processing for removal of truciole. probabilmete this design is a little coarse and lacks the "close" of the triangle, beyond the comma between 3.2... But that's the point.

 

[meccanicamg]

View attachment 67429Good evening,

At work I came across a drawing on which this indication is present. We're talking about 2d of fried castings. In general rules there is an indication of the roughness of the processed surfaces, while in a separate pane I saw this indication in img.
I interpret it as follows: The removal of material in general is prohibited (except in the processed areas which are clearly indicated by a color code) and any manufacturing process of the component is accepted that guarantees a maximum roughness of 32micron (indication between quadre prentises).

is it correct or am I reading wrong? Unfortunately I do not understand this indication.

thanks in advance to those who will respond.

means that, that out of parentheses that is all in general rough, except for the parts worked with roughness indicated in the brackets.

However a stiffness of 32.... is pretty big.... among other things not having closed the triangle you can get it from any system but not removal of truciole.

 

[MassiVonWeizen]

32 is a big roughness if you use European legislation, but not if you use Anglo-Saxon legislation or maybe a date

 

[MassiVonWeizen]

View attachment 67429Good evening,

At work I came across a drawing on which this indication is present. We're talking about 2d of fried castings. In general rules there is an indication of the roughness of the processed surfaces, while in a separate pane I saw this indication in img.
I interpret it as follows: The removal of material in general is prohibited (except in the processed areas which are clearly indicated by a color code) and any manufacturing process of the component is accepted that guarantees a maximum roughness of 32micron (indication between quadre prentises).

is it correct or am I reading wrong? Unfortunately I do not understand this indication.

thanks in advance to those who will respond.

these are satisfactions... a person makes a request, you get banged to search for information and help it and then you realize that you are no longer seen. What a beautiful life.

 

[Mario SJPD]

these are satisfactions... a person makes a request, you get banged to search for information and help it and then you realize that you are no longer seen. What a beautiful life.

we are daily witnesses of a constant decline.
scientific engineering, education and even simple attention.

 

[PIETRO2002]

these are satisfactions... a person makes a request, you get banged to search for information and help it and then you realize that you are no longer seen. What a beautiful life.

as the good alighieri wrote: don't care about them but look and pass.

 

[falonef]

Maybe he's gone for a moment.

 

[MassiVonWeizen]

as the good alighieri wrote: don't care about them but look and pass.

I disagree.

 

[PIETRO2002]

I disagree.

It was for you, you don't want to eat the liver for those who don't deserve it!

 

[Saso93]

thanks to those who responded and shared his knowledge.
to those who comment out of topic and hypothesize without evidence I say only that I am sorry for them.

 

[Saso93]

Perhaps I miss something not seeing the design as a whole, apart from the use of square brackets it seems to me the classic general indication that you normally use for roughness.
I imagine it is also a dated design, because the indication made in that way is incorrect, now in the brackets no longer has to enter any symbol, only remains that outside the brackets that indicates the degree of general roughness.

Yeah, I got comparisons at work and it was a generic indication. Thank you.

 

[Saso93]

32 is a big roughness if you use European legislation, but not if you use Anglo-Saxon legislation or maybe a dateView attachment 67477

thank you for the info that go along with what I already had and for the time dedicated to me. I'm sorry for your frustration

 

[Saso93]

generally in the drawings of the details from foundry there is the symbol with the circle out brackets that represents the whole surface of the piece as it comes out from the casting. then in the drawing will be indicated on some surfaces with the 3.2 symbol that must be filmed by processing for removal of truciole. probabilmete this design is a little coarse and lacks the "close" of the triangle, beyond the comma between 3.2... But that's the point.

Yes, it is so: it is accepted any fusiorium process (gravity, die casting, etc.) that gives a rough rough roughness not exceeding 32. then there is another pane indicating the machine-worked factories. Thank you!