interpretation

[cliff23]

Hello everyone

I have a problem in reading/interpreting some geometric tolerances.
in particular I can not understand what the and looked for in proximity of
quotas ys56 and ys59.
I attach the partial of the drawing in question.

thanks for the help

 

[MFT]

Hello everyone

I have a problem in reading/interpreting some geometric tolerances.
in particular I can not understand what the and looked for in proximity of
quotas ys56 and ys59.
I attach the partial of the drawing in question.

thanks for the help

I throw it there so much of a revision index or that the two holes being of the same diament have different geometric tolerances.



Hi.

 

[meccanicamg]

no regulations. the letters you look for may be p or m. the letter and in question may be a reference to note, revision or something indicated in the sheet or in the axieme.

 

[sampom]

Hello everyone

I have a problem in reading/interpreting some geometric tolerances.
in particular I can not understand what the and looked for in proximity of
quotas ys56 and ys59.
I attach the partial of the drawing in question.

thanks for the help

No, no revision.

is a prescription concerning "cross application" smile between tolerances of shape and size. dictate need to envelope.
specifies that that hole must be straight when throughout its length the diameters of the various (infinite) sections are in the condition of maximum material (and often this, the circle with the m inside), in your case ø14.
It would seem obvious as an indication, but it is not so:smile:. within the shock values you must assign a unique "position" where that condition is respected.

look at this (page 20 seems to me):http://www.ingegneria.unical.it/ingegneria/docenti/luchi/lezioni/toll_geom.pdfbut you can also find it on baldassini and in the various texts/manuals in the chapters of tolerances.

greetings
Mar

 

[sampom]

no regulations. the letters you look for may be p or m. the letter and in question may be a reference to note, revision or something indicated in the sheet or in the axieme.

How would it be? no regulations in this regard?
always refers to the one 7226/2 iso 2692, regarding principle of maximum material.

searched letters can be p or m ..

..also and (as in this case) and f.

greetings
Marco:smile:

 

[sampom]

also here:View attachment Lezione8_parte1_08_09_tolleranze_geometriche.rarfrom page 35, with reference to iso 8015 (the one before was taken by the baldassini -? -

greetings
Marco:smile: