Design and Comparison of Automatic, Conventional & Conformal Cooling Channels

for Injection molding of Plastic Lid

The CAD model of Plastic Lid

Dual Domain Mesh

Gate Location

Design of Sprue with Injection point

Design of Automatic Cooling Channel

Design of Conventional Cooling Channel

Design of Conformal Cooling Channel

Results1. Time to reach Ejection temperature

a. Automatic Cooling Channel

1. Time to reach Ejection temperature

b. Conventional Cooling Channel

1. Time to reach Ejection temperature

c. Conformal Cooling Channel

2. Volumetric Shrinkage

a. Automatic Cooling Channel

2. Volumetric Shrinkage

b. Conventional Cooling Channel

2. Volumetric Shrinkage

c. Conformal Cooling Channel

3. Warpage

a. Automatic Cooling Channel

3. Warpage

b. Conventional Cooling Channel

3. Warpage

c. Conformal Cooling Channel

Type of cooling channels

Time to reach ejection temperature (seconds)

Volumetric shrinkage (%)

Warpage(mm)(Maximum)

Automatic 30.55 12.34 1.93

Conventional 27.3 10.52 2.06

Conformal 18.88 9.88 2.25

Automatic C

ooling C

hannel

Conventional

cooling C

hannel

Conformal c

ooling C

hannel

0

5

10

15

20

25

30

35

Time To Reach Ejection Temp.Volumetric ShrinkageWarpage