flangeed shirt

[valeria90]

I am sorry to all if I answer only now but being an outside student I do not always have internet connection at home :-(I would have drawn up a tag also because I cannot use numerical control machines:-/
However wanting to use a parallel lathe and a drill I would say to work like this:
1) start from a cylindrical bar of size d= 150 and l= 180.
2) carry out a cylindrical turning to obtain d= 80.6 (through roughing + finishing) and l=122.5 and carry out a conical turning by tilting the axis of the turret to obtain the d=73.1
3) turn the piece and carry out a cylindrical turning to have d=80.6 and l=32.2 and then carry out a shouldering to get the d=145.1
now for the inner hole d=73.1 (and here is my biggest doubts) I follow the lathe hole d= 51.6 (I don't know what type of counterpoint you use to create the hole) so that you can then perform the processing of internal turning.
4) for eight holes with d=12.9 what kind of processing should I perform? As they are at 45° each and, not being able to use numerical control machines, I do not know how to continue.. . .
5) also for the hole on the conical surface with d=12.9 I have the same doubts.
thank you so much you are all too kind

 

[enri09]

how do you grab on the cone to perform the second processing?
follow the indications of the post 12 by updating only the quotas, and grabbing the piece on the d=80.6 for the second processing.
clearly, you will have to drill with a 48 or 50 mm tip, then make the internal roughing, finally finishing. In this way you have the perfect coaxiality of the d=80.6 with the hole.

the holes are realized with a tip, no with the quilt: you must mount a tip with conical cod in the barrel of the counterpoint.

to make holes on the flange you will need to grab the piece with internal socket on the d=51.6. using a self-centering spindle partition.
You know what a divider is? look here: http://www.utensilirevelli.com/images/divisore75.jpg to make the 8 holes you have to use a gear similar to this.

 

[valeria90]

I just read the post, but to make the tilted surface I grab the piece on the d=80.6?
As for the holes I only do them with the divider? Sorry my ignorance I see how to document the divider because I don't know what it is

 

[valeria90]

to perform a deep drill I found on the internet a corodrill 800.24 tip from the sandvik catalog, could it be okay? ?

 

[enri09]

the turning d=80.6, the hole and the working inside you do it by seizing in the autocentre the raw brush d=150.

the divider is a equipment that is mounted on the drill counter (as in your case) or the milling machine.

 

[enri09]

your is not a deep drilling: you have a length of 170mm, just 3volts and a half the diameter.
you have to use a normal helical tip like these: http://www.gnuttibortolo.com/jsp/sc...&id_tipo=ut23&id_sotto_tipo=ut82&id_art=11518the 50 tip has a useful length of 220, more than enough for your purposes. the standard length of the tips is four times the diameter.

 

[valeria90]

but the type of drill to use which could be? I've been discouraged by the mountaineer.

 

[enri09]

a heavy drill.
look at this also has the mounted divider: http://www.cimetmn.it/ita/parcomacchine_tradiz_scheda3.asp?idcat=6

 

[PierArg]

I just read the post, but to make the tilted surface I grab the piece on the d=80.6?
As for the holes I only do them with the divider? Sorry my ignorance I see how to document the divider because I don't know what it is

Yes, exactly!
the "lined" surface, you grab it on ø80.6.
see the video that posted enri09 in the other discussion "flange shirt"

edit: sorry the web page had not updated the latest comments and I only see them now

 

[tortellino]

I would use a common column drill.

the divider (simple or differential) does not make holes, but allows you to divide a corner around in equal parts, the width of the angle you prefer.

a normal mechanical divider comes to the accuracy of the fifteenth grade.

 

[MBT]

4) for eight holes with d=12.9 what kind of processing should I perform? As they are at 45° each and, not being able to use numerical control machines, I do not know how to continue.. . .

you can use a universal divider.
However, here we go on the memories of the beginning... :redface:
Who knows if I still have my notes somewhere :mixed:

 

[valeria90]

Thank you so much. Can I ask you another question? Could I run all the lathes or should I use the drill for the holes?
in other words are there methods to perform this piece all on a machine that is the parallel lathe?
thank you so much I don't really know how to thank you

 

[enri09]

... can I ask you another question? Could I run all the lathes or should I use the drill for the holes?
in other words are there methods to perform this piece all on a machine that is the parallel lathe?
thank you so much I don't really know how to thank you

with a column drill without mobile table, it is difficult to center the hole.
at this point better a drill as recommended before.

 

[enri09]

No.
You need it in order:
sawing machine
lathe with autocentre
drill-fresh with vertical axis divider and clamp.

there is no escape, unless you pass as already said a little post ago on a cnc lathe with motorized tools.

 

[tortellino]

simple and differential divider. here.
http://roby1968.altervista.org/pdf/divisore_universale.pdfcmq, if you can find the dear old buckets of mechanical technology (vol. 2, that on machine tools) you are already at good point with your examination.

 

[enri09]

Cake quoto and I ask myself: but before jumping to fish on the processing card, valeri has never, I do not say studied, but at least browsed a book of mechanical technology?

 

[tortellino]

It's not even his fault.
Unfortunately at the university now there is the habit of printing a 50-ina of pages of dispenses (more or less intended) and you have the claim to enclose in those 50 pages what you at the beginning is done in 3 years.

 

[valeria90]

ok thanks then recapitulating use for the eight holes plus that on the conical surface a drill brake..scusate but having no idea how it works and seen anke ke the prof at lesson did not explain a good nothing, there is need of particular tip to drill? What if I can find them?

 

[valeria90]

on my book just saint there is very little and the slides of prof ankora worse... really book in the dark with this type of project:-(

 

[enri09]

on the page I indicated before where there are the helical tips.

or, if you don't want to beat yourself too much, on the same site there are also catalogs with cylinder attachment tips to grab in a spindle.

p.s.: It's normal that the prof doesn't explain everything: you're at university, and you have to learn to look for books. I guess some books have recommended that you at least not?