Pin fin design:
Forging:
Benefit:
Complete in one piece with no interface.
High aspect ratio 1: 100
Can forge aluminum alloy, pure aluminum and copper
No taper fin shape improves airflow smooth through
High material density increases thermal conductivity
Wide range geometry as die casting
Fin or pin forge only one time doesn't need cross cutting
Type Pros Cons Forging No interface Tooling developing required 3 weeks Extrusion Cost effective Lower aspect ratio 1:23 Die Casting Cost effective Poor density Stamping/ Soldering Cost effective Too many interface Skiving High fin Potential crack risk between fin and base Maching Fliexible applications Cost expensive
High density
High aspect ratio 1:100
Wide range geometry
No interface
Tapered fin decrease air flow in-take
Net shape
Less machining cost
Poor heat transfer performance
Lower aspect ratio 1:15
High fin
Un-reliable quality
Secondary operation required
Long lead time