【转帖】asme rivet callou

yang686526

asme rivet callout?
is there an asme standard for calling out rivets on a drawing? i have no experiance with rivets, our company almost never uses them but we found an instance where it is easier and cheaper than spot welding and now i need to figure out how to spec them for our vendors.
thanks for the help.
david
don't know about asme but if i recall correctly, back in the uk the relevant rivet standard usually detailed how they should be called out on the drawing.  pretty much all rivets we used to use were to a british standard (or other national standard) spec.
what specifically are you asking about?
are your asking if any notes are needed in the assembly drawing in addition to the rivets being in the parts list/ballooned or are you asking about the rivet holes etc?
i have a sheetmetal part on which we used to spec spot welds, i need to change the callout to rivets. i don't care what the manufacturer of the rivets is or even how they are installed. i just need to tell our fabricator to install flush rivets into a part and i was wondering if there was an accepted method of calling this out on the drawing. we call out asme y14.5m-1994 on our drawings so i was hoping there was an asme approved way of indicating rivets.
david
the only standardized method in know of for indicating rivets on and engineering drawing is nas523, 'fastener codes'.  this national aerospace standard defines a system of using coded symbols on the drawing to indicate fastener type, size,grip length, head location, etc.
gdt_guy
so unless i'm missing something.
the piece parts need to have the correct size holes in them.
on the assembly i'd just show the rivets on the drawing, balloon and add to the parts list.
in the parts list i'd put the standard the rivets are to (i'd guess ms or an) or, if not to a standard, then an adequate description of the rivet.
however, if you can get a look at the standard gdtguy gives that would be best.
ken
take a look at this
depending on where you are located, check out gdtguys suggestion.  it is widely used here in the states.
okay, sounds like nas523 is the way to go. does anyone have a copy of this they can send me? i can get alot of information from the site kevin recommended but it doesn't tell me everything.
david
'course, you also need some sort of a rivet installation callout, like "install fasteners per mil-std-403."
steve r.
interesting, i've never seen the information on how to install the rivet, or what standard to install it to, placed on the drawing but then the drawings i worked were for places that had workshop practices etc which covered this.
kenat,
how did you tell the shop that "a rivet goes here". that is really all i want. the shop is already putting the rivets in and i don't really care what they are as long as they are flush on one side.
david