Texturing effect

[rm_moldflow]

Hi Everyone,

I had a quick question in regards to texturing of the part and its affect on the flow propeties. Is there a way that the effect of texturing can be incorporated into the simulation?

Thanks

Mat

[nordhb]

Hi,
how the texturing affect flow is assumed to be how heat is transferred from melt to mold depending on type of texturing.

A suggestion could then be to use the solver setting: Mold-melt Heat Transfer Coefficient (HTC)
The Mold-melt Heat Transfer Coefficient (HTC) option group is used to define the heat transfer coefficient between  the mold and the material.

You specify separate values for the HTC for the filling and packing phases, as well as values for the HTC for the cavity and core when detached (i.e., pressure is zero).

The default values are:
5000 W/m2C during the Filling phase, i.e., before packing commences.
2500 W/m2C during the Packing phase, i.e., after 100% fill.
1250 W/m2C when detached (i.e., pressure is zero). 

It can also be profiled by time, using HTC - Profile.

One have to investigate further which HTC values to apply for different type of texturing (pattern, fine, coarse, depth), the material and process settings.

Regards,
Berndt

[rm_moldflow]

Hi Berndt,

Thanks for the reply. I'll try using different values for the HTC and see how it goes.

Mat