2
$\begingroup$

enter image description hereA typical radial piston rotor can have simple holes machined from the outside through the inner diameter to create flow channels for hydraulic fluid to actuate the pistons.

I came across this model and I was wondering, how would something like this get machined?

$\endgroup$
  • 1
    $\begingroup$ There's not enough detail to your question. If the holes are straight, then @kamran's answer is correct & complete -- it's just a matter of holding the part, and making straight holes. $\endgroup$ – TimWescott Apr 20 '19 at 18:04
1
$\begingroup$

That part is likely two different parts, one of them pressed inside the other.

Each part could be made in many different ways. How they were produced highly depends on what material they were made from.

High part number productions will often start with a ‚near net shape’ mold, and will be cast to almost what the final part is in dimension this saves fabrication time and material costs. Even highly complicated engine parts or entire blocks will be cast if they can be.

After this the parts will go into machining, if this is again, a high production part, they will likely be highly likely fully automated cnc machines. 4 Axis would be enough for that part with only a single part change for final contour. Depending on the part and tolerances, they may be pressed together first then machined or any combination.

After this they may go into whatever post processing that needs to be done, like pressing, hardening, plating, cleaning etc.

| improve this answer | |
$\endgroup$
0
$\begingroup$

They have lathes with special tools which can hold the odd parts firmly to be worked on. Watch around minute 1:25.

you tube drilling a hole in a shaft.

| improve this answer | |
$\endgroup$
  • $\begingroup$ My question was, there's vertical holes toward the center, there's also horizontal holes that would align with they hydraulic distributor. There seems to be 30 horizontal holes and 30 vertical holes but spaced out along three rows. $\endgroup$ – hydrodyno Apr 21 '19 at 16:15
0
$\begingroup$

I think I've got what you are asking.

The most probably response is. At the end of the radial holes (the big ones) there's another radial hole matching with the diameter of the axial holes (the litle ones).
And this could be machined either with universal milling machine with a divider or with a cnc machining center (most probably).

Without understanding the whole sistem I can't be sure but the probability like this higher because the sistem should work like on car's piston sistem where the gas and oxigen enter and there's one way valves both in inlet and outlet.
Looking at the image looks like all holes should be for only one function (inlet or outlet). And on the other side there should be the other function holes (probably in the exact same alignment.

| improve this answer | |
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.