How to manufacture this Iron Sleeve
How to manufacture this Iron Sleeve
(OP)
ok so this is a small part for a little pump. It is an iron sleeve with about 5.5mm outer dia. it's very similar to an iron bearing sleeve, but I was wondering if its possible to manufacture one with an endcap on it. The surface finish etc must be quite smooth along with the dimensional tolerance. How could this be done? the pic shows a section through half the part, it is a cylinder.





RE: How to manufacture this Iron Sleeve
RE: How to manufacture this Iron Sleeve
RE: How to manufacture this Iron Sleeve
RE: How to manufacture this Iron Sleeve
RE: How to manufacture this Iron Sleeve
Either conventional machining or EDM.
If it doesn't need to be homogeneous it could be made from a tube, with the end closed in any number of ways.
RE: How to manufacture this Iron Sleeve
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( read somewhere on the internet)
RE: How to manufacture this Iron Sleeve
RE: How to manufacture this Iron Sleeve
RE: How to manufacture this Iron Sleeve
I have done this for similar sizes.
A shop with a turning center can spit out a lot of them in short time.
Chris, CSWA
SolidWorks 14
ctopher's home
SolidWorks Legion
RE: How to manufacture this Iron Sleeve
As mentioned, the intersection of bore and internal face needs some consideration re relief, radius, or chamfer on mating parts if any.
Mike Halloran
Pembroke Pines, FL, USA
RE: How to manufacture this Iron Sleeve
RE: How to manufacture this Iron Sleeve
RE: How to manufacture this Iron Sleeve
In particular, a fillet that's perfectly tangent to a cylindrical surface and a planar surface at all points is very difficult to produce.
We often see external fillets of a slightly larger radius, or double internal fillets of a smaller radius, as generated by the cutting tools, with the fillet edges only loosely controlled.
If the cup is inserted into a tight fitting bore, it's common to see an asymmetrical chamfer rather than a fillet, so the cup will align itself as it's pushed into the bore.
Similarly, if there's a piston or similar to be inserted into the cup, then the cup is missing a chamfer at the ID of its open end.
Only you know the details of the assembly into which the subject cup fits, and how the assembly is intended to work, so we are not in a position to advise you further.
Mike Halloran
Pembroke Pines, FL, USA
RE: How to manufacture this Iron Sleeve
At the outer corner I would suggest using a chamfer rather than a radius if possible. A chamfer is much easier to machine. Or even better, simply use a note that states "CORNER TO CLEAR R.XX MAX FILLET". This would allow any corner profile that provides sufficient clearance, regardless of shape.