Prototyping using Nylon 6 , 66

[induseng]

Hi,

We are new to prototyping and this is the first time we are doing it and hence the questions.

We are prototyping / assembling a new machine that we intend to market. Most of the parts are one off and cannot be machined. These need to be worked by hand or machined using conventional machines like lathes

Any advice from the experts on machining and handworking NYLON 6 / 66 is welcome.

The material tends to get heated when machined and expands making it difficult to work and keep dimensions.

Any advice is welcome and also rapid prototyping is not an option here.

Thanks in advance

Induseng

[Will Call]

High RPM, very sharp cutting tools and light cuts.

[Tom]

How about using water as a coolant?

[Louis]

Wet Nylon Grows!

I would make sure that the parts reached equilibrium. Check the DuPont web site.

[Al Hall]

Use a 2 flute cutter and lots of coolant. If the coolant is warm your part will still grow so you probably will have the take a finish cut with the part oversize and leave it cool to find out how much it grew. If the dimensions aren't critical you probably won't have to do this.

[Tom]

I doubt if the diffusion of water into a nylon part would be very significant during a machining operation of reaonably short duration.

[Al Hall]

I doubt if the diffusion of water into a nylon part would be very significant during a machining operation of reaonably short duration.

I was more concerned with the temperature of the coolant. I doubt if there would be ANY diffusion of water into the part.