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Author Topic: Aluminium Part Milling?  (Read 382 times)

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Offline JeremyE

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Aluminium Part Milling?
« on: August 09, 2017, 14:06:19 »
Hi

I need some parts milled from aluminium. I tried to turn them on a mini lathe, but I do not have all year and my ears were not very fond on the screaming. I did debate upgrading my Shapeoko, but I'm really sure what machine would be able to handle up to 50mm aluminium (And I have limited space on where I can keep it). The parts need to be high accuracy as they link a motor and gearbox and I don't feel like destroying either. Can anyone recommend a place? Or a small footprint machine that would cope.



Offline hoverfly

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Re: Aluminium Part Milling?
« Reply #1 on: August 09, 2017, 14:33:41 »
Drawing  and  spec please. :beer2:
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Offline JeremyE

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Re: Aluminium Part Milling?
« Reply #2 on: August 09, 2017, 14:43:16 »
Drawing  and  spec please. :beer2:

What type of drawing would you require? I have .step, .stl, 2D dxf.
Material is either 6061-T6 of 6082-T6 alu

Online DarrellW

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Re: Aluminium Part Milling?
« Reply #3 on: August 09, 2017, 16:30:56 »
With Aluminum your best using TiN coated cutters (good quality ones like Titex) and using paraffin as a cutting aid, I've turned parts on a home made lathe using a drill and bits of angle.
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Offline hoverfly

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Offline JeremyE

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Re: Aluminium Part Milling?
« Reply #5 on: August 10, 2017, 09:54:38 »
Here are 2D and 3D pics...

23524-0

23526-1

The full depth is 10mm and the other that you cant see in the pic is 4mm
« Last Edit: August 10, 2017, 14:11:35 by JeremyE »

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Re: Aluminium Part Milling?
« Reply #6 on: August 10, 2017, 14:00:40 »
You need the PCD's for the holes as well.
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Offline JeremyE

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Re: Aluminium Part Milling?
« Reply #7 on: August 10, 2017, 14:12:02 »
You need the PCD's for the holes as well.

Thanks Darrell! Updated the original pic...
« Last Edit: August 10, 2017, 14:22:29 by JeremyE »

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Re: Aluminium Part Milling?
« Reply #8 on: August 10, 2017, 18:10:48 »
Water jet cut then finish with pillar drill. Would b cheapest option.

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Re: Aluminium Part Milling?
« Reply #9 on: August 10, 2017, 18:43:47 »
Water jet cut then finish with pillar drill. Would b cheapest option.

You sir have made a very valid point!

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Re: Aluminium Part Milling?
« Reply #10 on: August 10, 2017, 19:05:57 »
What is the counter bore depth? And tolerances. Is the position of the 3.3  holes relative to the other holes critical?
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Re: Aluminium Part Milling?
« Reply #11 on: August 10, 2017, 19:26:04 »
What is the counter bore depth? And tolerances. Is the position of the 3.3  holes relative to the other holes critical?

Counter bore depth is 4mm. Tolerances need to be very tight. All the holes are very critical to one another as its attaching a motor to a planetary gear. If its out, there goes a £200 gearbox.

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Re: Aluminium Part Milling?
« Reply #12 on: August 11, 2017, 11:39:22 »
I may have an option on a Taig micro mill. This would maybe put me in the realm of being able to machine almost anything I need!

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Re: Aluminium Part Milling?
« Reply #13 on: August 11, 2017, 13:40:01 »
The Taig is quit a nice mill, but limited capacity. Remember  you will need a dividing head to get the hole spaces accurately placed, these take up a lot of table space,and there might not be enough clearance between the workpiece and chuck/collet.

Assembly DRG?
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Re: Aluminium Part Milling?
« Reply #14 on: August 11, 2017, 19:07:02 »
The Taig is quit a nice mill, but limited capacity. Remember  you will need a dividing head to get the hole spaces accurately placed, these take up a lot of table space,and there might not be enough clearance between the workpiece and chuck/collet.

Assembly DRG?

If I get the Taig, it will have a set of Nema 23's on it pronto! That way I wont need a dividing head.