KristianSilva
Aluminum
- Joined
- Nov 26, 2016
Hi all,
I have some thin walled Ali/bronze rings to machine. The drawing is below.
The material I have to work with is a premachined spuncast pot with dimensions - 189mm OD x 176mm ID x 250mm long.
Currently we only get 6 rings from this material when we could get 7. This is because the process we use at the moment is supposed to be idiot proof. However I would really like to get an extra ring out of this material.
NOTE: we currently do these in batches of 18 spuncast pots (so 108 individual rings)
Currently we do as follows:
OP1
Grip one end of the pot in soft jaws with the ID of the pot supported by a jaw boring spider so not to crush the pot.
We then bore out the opposite end to 177mm dia, 20mm deep.
OP2
we hammer a tight fitting bung into the 177mm counter bore and grip on the OD with the same set of soft jaws (hydraulic chuck @ 18bar).
We then machine a ring, part it off, and use a macro prgram to shift the datum in by the width of the part + parting off tool width(3mm).
This give use 6 rings and a waste ring that is 35.5mm long. However this is a stable process that the very low skill on our shop floor can handle.
HOWEVER,
This really annoys me as there is another ring in that scrap material.
Does anyone have any suggestions on how to improve this process?
THANKS
I have some thin walled Ali/bronze rings to machine. The drawing is below.
The material I have to work with is a premachined spuncast pot with dimensions - 189mm OD x 176mm ID x 250mm long.
Currently we only get 6 rings from this material when we could get 7. This is because the process we use at the moment is supposed to be idiot proof. However I would really like to get an extra ring out of this material.
NOTE: we currently do these in batches of 18 spuncast pots (so 108 individual rings)
Currently we do as follows:
OP1
Grip one end of the pot in soft jaws with the ID of the pot supported by a jaw boring spider so not to crush the pot.
We then bore out the opposite end to 177mm dia, 20mm deep.
OP2
we hammer a tight fitting bung into the 177mm counter bore and grip on the OD with the same set of soft jaws (hydraulic chuck @ 18bar).
We then machine a ring, part it off, and use a macro prgram to shift the datum in by the width of the part + parting off tool width(3mm).
This give use 6 rings and a waste ring that is 35.5mm long. However this is a stable process that the very low skill on our shop floor can handle.
HOWEVER,
This really annoys me as there is another ring in that scrap material.
Does anyone have any suggestions on how to improve this process?
THANKS