[david rendon]

Hello,
Please share experiences ...

I have a problem with a part I'm holding on a fixture.... The part shatters on me!!
Anybody know of a fixture component for purchase to minimize this vibration on the part??

Thanks

[txcncman]

Need a lot more information. Part print. Material. Current work holding. Type of cutting. Type of tools.

[david rendon]

I wish I could disclose the blue print =(
I'm boring and then thread milling a 1-3/8-16 hole, and the thing is that the part is "L" shaped and is seating on the far side of the feature being threaded (beacuse of a Datum).

In other words, the area of the part being cut, is seating on the air.

Hope this explans a little more
:wee:

[txcncman]

Nope. Did not help at all. Maybe you should try building a fixture to completely contain and support the part.

[david rendon]

The part is already seating on the Datum, so it'll be redundant if I supported the part under the area being machined.

The part came out OK but I was wondering if there are any small vibration-absorb devices for fixtures out there in the market.

thanks though :banana:

[keebler303]

You don't need to absorb vibration. Just make a good fixture and there will be no vibration to absorb. Make the fixture hold the part as thoroughly as possible. Holding your part only on the "datums" only works in theory, maybe on a CMM or something but not for machining.

Support your part!

[david rendon]

will do!:rainfro:

[neilw20]

Super freeze it in a block of ice, or some substance you can dissolve later.

[txcncman]

There are also low melting temp metals that can be used as both part of fixturing and vibration damping.

[neilw20]

Contains bismuth and antimony. Just melt with boiling water.
http://en.wikipedia.org/wiki/Wood%27s_metal