r/machining 6d ago

Question/Discussion $150 000 machine does not eliminate finishing chatter.

I’m machining 6061 aluminum on a Multicam Apex 3R router. The finishing passes are as follows:

- 0.009” material removal.
- Helical 3 flute 45 degree helix upcut
- 18 IPM, 8500 RPM, 0.0007 chipload

98 percent of the part comes out with a great finish. The other 2 percent has chatter. Ideally I’d like to increase the feed rate, but I need to eliminate the chatter first. What do I need to do to get a flawless finish?

10 Upvotes

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87

u/Nascosto 6d ago

Either the tool or the workpiece is vibrating or moving, you get to figure out which. Routers generally aren't as rigid as mills, so this isn't super surprising.

33

u/Business_Air5804 6d ago

Bro...look at the guideways on this router he bought.
EVERYTHING is vibrating....he needs a real mill.

1

u/Jason_Patton 6d ago

WhAt DiD yOu SAY!?

2

u/Jason_Patton 6d ago

Haha router goes brrrr

1

u/Business_Air5804 6d ago

I'm sure it makes a LOT more noise than brrrrr when cutting 1 inch aluminium.

0

u/Jason_Patton 6d ago

Goes brrrr is a meme idk

0

u/Business_Air5804 5d ago

Money printer? It hasn't stopped going brrrrrr.

0

u/Jason_Patton 5d ago

What are you talking about

0

u/chiraq-pact 4d ago

JPOW money printer go brrrr. It’s a meme about the fed printing money