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processing costs

  • Thread starter Thread starter M.Pigna
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M.Pigna

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Hello, guys.
I made the registration 5 minutes ago, I was pleased to meet you.
I ask a hand, if possible, to complete a graduation thesis: third-party processing costs for processing such as turning, milling, bending, fittings, bevels and drilling, for example for 100pz, do they get around in a maximum line around which price range?
I know to be an unusual question, but it is essential to express some concepts related to the choice of certain processing processes on drawing components rather than others.
I try to explain myself better: generally, when designing a mechanical component/group that obviously has a specific function, if you study the feasibility, analysis of loads and sizing, choice of materials, possible treatments and of course also the costs that the company will have to support to complete the project.
sometimes, when it is allowed obviously, you have the possibility to "choose" for that component a fitting rather than a bevel, "because the connection costs less" I was often told in the company; had, I work as a modeler and mechanical detailer in a small company that designs/mounts measuring and controlling machines and certain processing processes (the ones mentioned above) are entrusted to other companies. Does anyone know how to make me a sort of price scale, from the least expensive to the most expensive, of the above processing processes? Of course, everything depends on different factors, such as the material of the component, form and function, delivery times, ...what I ask is a general scale, a price range that up down allows me to understand, for that particular situation, it is a simple project, which work would be done not to exaggerate with costs.
I hope I was clear, it is not easy to explain.
I do not ask for particular analyses, only general price ranges, to have a vague idea of how it works.

Thank you in advance
 
I can't help you because I don't know the costs, but I can tell you that the less expensive fittings of the bevels I've never heard it, and I think it's true the opposite because the bevel you do it on any machine and any tool in a simple way while the fitting is simple with tool only if I concave and a radius compatible with the insert, otherwise you have to interpolate the axes and it is not easy at all.
as cost logic I would tell you:
rays and bevels should not be considered because they are almost always included another processing; individual bevel machining, for example, of a chinafrino, are often coarsely made with flex or similar tools as it is not required precision. the specific processing of a radius has never happened to me to see it, but possibly considered turning or milling
sheet metal cutting depends on the type used in vine: oxide, plasma, laser, water... more or less is the cost order of the various types; goes from if the type of processing affects the quality of the product
milling and turning depend a lot on type of machine which in turn depends on quality and types of processing
then there are all thermal treatments that affect the cost of a particular

but sorry, your company from details to sealers, they will make a quote, they will have a list of expenses with the costs of the various processing so as stable how much you have spent on a sheet metal casing and a sharp pin?
 
to say the truth there are already open discussions regarding the calculation of how much they cost or pieces and how the estimates are made.
for example the most recent and full discussion is qui.
 
according to your experience, forged in 42crmo4 reclaimed that cost 3,50 per kg how are they?
 
So I assume they do it for free formation, which is without any mold. to me it seems a reasonable price if included also of reclamation. the ideal would have a couple or three quotes... to compare
 
PIETRO2002 said:
with those figures, which I have estimated, the 3 quotes are obligatory! :
Click to expand...
we have had 2 estimates and in fact it is the most beneficial one. you will be made in free form, so much so that I made 10 mm radial of overmetal compared to the finished.
Thank you.
 
meccanicamg said:
we have had 2 estimates and in fact it is the most beneficial one. you will be made in free form, so much so that I made 10 mm radial of overmetal compared to the finished.
Thank you.
Click to expand...
Be careful not to have any decarburized parts, if I buy the artifacts already turned, the supplier according to his experience, will calculate the appropriate overmetal to leave, and you take some responsibility.
 
PIETRO2002 said:
Be careful not to have any decarburized parts, if I buy the artifacts already turned, the supplier according to his experience, will calculate the appropriate overmetal to leave, and you take some responsibility.
Click to expand...
Of course, as soon as we have the design of the finished we give it, so it adds rays and system any extras of overmetal. In this way it provides us the suitable crude..... seen that it is not a small and regular piece.
We are running as damned in these times and we need to have everything clear before proceeding.
 
When I was turning the lathe I worked forged of various sizes, even similar to those you indicated, and I can tell you that 10mm are few. the surface crust is irregular and much harder than the internal material that forces to a very deep initial pass. even the big difference between the diameters does not help. I think they'll make a minimum 20mm.
if it may interest you I can give you the name of the company that besides making forged does the grinding process with overmetal at your request.

But I don't know the costs
 
by curiosity, can the processing cycle be the following? :

forging

reconstruction of distension

grinding turning

remediation
 
by now it has been decided by the super director that the supplier is the one selected, so now, of him we must trust.
in the next few days we contact him directly to understand exactly the same question that raised massivonweizen.

I believe that the cycle is precisely so, in the sense that we will arrive for the supply a pretornoted and prebonified crude.
then they will forge it, reconstitution, turning, reclaiming. then we begin to turn the roughing and finishing of the piece.
 
If you lookuest'immagine, which should be similar to your pieces, you can guess the disharmony of the surface that makes a forged overmetal of only 10mm difficult.
to this add that in the forging phase during the rotation of the shirt, however precise it is, the material affected both of the withdrawal that will never be homogeneous on the diameters, and of the gravity that will tend to disalline the part far from the big diameter
 
MassiVonWeizen said:
If you lookuest'immagine, which should be similar to your pieces, you can guess the disharmony of the surface that makes a forged overmetal of only 10mm difficult.
to this add that in the forging phase during the rotation of the shirt, however precise it is, the material affected both of the withdrawal that will never be homogeneous on the diameters, and of the gravity that will tend to disalline the part far from the big diameter
Click to expand...
I think so, given the size of the piece and the method of forging, if they manage to stay with 20 mm of overmetal they are already good. .
 
MassiVonWeizen said:
If you lookuest'immagine, which should be similar to your pieces, you can guess the disharmony of the surface that makes a forged overmetal of only 10mm difficult.
to this add that in the forging phase during the rotation of the shirt, however precise it is, the material affected both of the withdrawal that will never be homogeneous on the diameters, and of the gravity that will tend to disalline the part far from the big diameter
Click to expand...
exactly,...just those things I have to do there:)
 

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