rough, finished and supermetal thickness

[alexrib89]

Good morning to all,

It has long been that I have been registered in this forum so I believe (but I'm not sure) that I was introduced years ago! :wink:

I read a lot of your discussions and often find answers to my questions.

I have graduated in mechanical ing for just over a year and currently work in a small and young company that realizes test benches. my task (besides other marginal tasks) is to design and draw frames in carpentry and machined parts

This time I am here to ask you a question, which if marginal, has created several disputes between me and my colleagues in the design office.

I predict that my experience in this sector is not very developed, given also age, but I am a pointy, attentive and passionate type, so I grew up quite quickly in this job role (although I still have a lot to learn).

after this brief preamble we come to my question.

I often find myself drawing mechanical components made through the welding of sheets and then worked with milling; like others in this forum the welded axieme of inventor that allows to represent the crude, and the finite. And so far it's okay.

for the simplest pieces we avoid making the rough design, listing only the finished piece, and to facilitate the interpretation to the mechanical builders (external companies) we insert in the first page of each design the separate cut of the various elements constituent the assemblies (e.g. sheet 5 150x150).

I put the measurements of the crude and on the side I insert the mm of metal over which I am estimated to be removed, I give an example:

"lam. sp. 15 150x150 including 3 mm of metal over"

then in the axieme listed the thickness of that sheet (which will be poured out of millet) will be indicated with the quota "15mm finite"


I have found in law how the metal over is quoted, but it gives me the idea that this information is not clearly received by the final operator and I do not know how well it fits with welded pieces that require the removal of material only on some faces.

Now I ask you:
according to you this method that aduced is right?
can you create confusion in the process of realization?

how do you do these things?

thanks in advance of the answers you will give and hope to have been clear!

Bye!

 

[SHIREN]

Good morning to all,

It has long been that I have been registered in this forum so I believe (but I'm not sure) that I was introduced years ago! :wink:

I read a lot of your discussions and often find answers to my questions.

I have graduated in mechanical ing for just over a year and currently work in a small and young company that realizes test benches. my task (besides other marginal tasks) is to design and draw frames in carpentry and machined parts

This time I am here to ask you a question, which if marginal, has created several disputes between me and my colleagues in the design office.

I predict that my experience in this sector is not very developed, given also age, but I am a pointy, attentive and passionate type, so I grew up quite quickly in this job role (although I still have a lot to learn).

after this brief preamble we come to my question.

I often find myself drawing mechanical components made through the welding of sheets and then worked with milling; like others in this forum the welded axieme of inventor that allows to represent the crude, and the finite. And so far it's okay.

for the simplest pieces we avoid making the rough design, listing only the finished piece, and to facilitate the interpretation to the mechanical builders (external companies) we insert in the first page of each design the separate cut of the various elements constituent the assemblies (e.g. sheet 5 150x150).

I put the measurements of the crude and on the side I insert the mm of metal over which I am estimated to be removed, I give an example:

"lam. sp. 15 150x150 including 3 mm of metal over"

then in the axieme listed the thickness of that sheet (which will be poured out of millet) will be indicated with the quota "15mm finite"


I have found in law how the metal over is quoted, but it gives me the idea that this information is not clearly received by the final operator and I do not know how well it fits with welded pieces that require the removal of material only on some faces.

Now I ask you:
according to you this method that aduced is right?
can you create confusion in the process of realization?

how do you do these things?

thanks in advance of the answers you will give and hope to have been clear!

Bye!

Hi.
the prob face it in the quotdiano
even if in the field a different moment
but always overmetal we speak
we always solve it as by jpeg attached
even if there's always someone who makes some mistakes
Thank you very much

 

[ninfh]

I personally quote the overmetal only for some grinding work, or when I am the one to provide the material, for the rest I give the msures of the finished piece, the type of material and any treatments.

if I ask a piece of lathe deø19mm-diø17mm for me can also start from a full of ø200mm and have fun to return it, just as prices and times are respected



for the few welded carpentry structures I make, in the material I indicate the type of profile and the size

 

[bradipo666]

In the past, because of my inexperience, I have had very few problems:
I do this anyway:

1) design i/i/i/i
2) I create a welded assembly with one or more details
3) I carry out the processing (with mechanical processing)
4) untouch both the crude and the finished piece (if it is only one particular, I put the crude and the worked on a single sheet)

 

[windreef]

hi I also do more or less like you in the sense for the complex pieces two tables, crude and finished. for the simple pieces only the table of the finite indicating in separate the measures of pieces included overmmetal but without indicating the super. apart. on the other hand, if the piece has a thickness of 15 and in the design is indicated 12 it is logical that they have to be removed 3 mm, it is however, as said ninfh, what counts is the finished design from where business they start.

 

[Peppe]

What not recently, using the symbols of roughness accurately allows to make the operator understand where the overmetal resides and consequently the area/s to work.