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Valued Contributor
HugoHerrera7042
Posts: 62
Registered: ‎07-07-2009
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3 shot molding

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11-29-2012 08:35 AM

Hi,

I have a 3 shot part (black, red and clear) to evaluate...plan to make 3 isolated analysis, also an insert molding analysis considering the first 2 shots as plastic inserts at whatever the part temperature at EOP is from the isolated analysis.

 

is there an overmolding type of analysis for a 3-shot molding part? or what is your best approach for these type of parts?

 

thanks,

 

Hugo Herrera

VLSM

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raalteh
Posts: 251
Registered: ‎04-14-2009

Re: 3 shot molding

11-29-2012 11:17 AM in reply to: HugoHerrera7042

Hi Hugo,

 

At the moment it's not possible to do a 3 shot overmolding in Moldflow (2 is the maximum), so the approach you suggest is probably reasonable. More than 2 shot overmolding has been requested before as an enhancement of the current 2 shot overmolding process.

 

Without seeing the actual part, I can't see if it makes sense or not, but you could consider doing two 'two shot overmoldings' simulations to see if the overmolding of one component over another actually has an important influence or not.

 

Are the two materials actually physically different (beyond 'just' the color?). It the materials are more or less the same you could consider doing a two shot overmolding process, with two of the materials being the same material (where in reality they may be differently colored). Just an idea.

 

Hope this helps.

 

Hanno

 

 

Hanno van Raalte,

Product Manager for Autodesk Simulation Moldflow products
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Valued Contributor
HugoHerrera7042
Posts: 62
Registered: ‎07-07-2009

Re: 3 shot molding

11-30-2012 07:42 AM in reply to: raalteh

thanks Hanno, you are right, since it is a 3 color, but 2 station process, with same material, i can actually model the first station as the 1st shot and the 2nd station as the 2nd shots...i got kind of carried away with the 3 color issue...

 

thank you for the fresh eyes,

 

Hugo Herrera

VLSM

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