Cold forging and pin fin heat sink capability
Release time：
2023-07-26 09:14
source：
ALVC
Cold forging and pin fin is a highly precise manufacturing process in which the workpiece is formed under high pressure and low temperature. The process ensures that no air bubbles, porosity or other impurities are trapped in the material, and thus produces products with exceptionally high quality.
Cold Forging and Pin Fin Heat Sink Advantage:
Compared with other manufacturing methods (machining, die casting, extrusion, hot forging, etc.)
● Incoming air stream from all direction
● Improved mechanical strength
● Improved surface finish
● Better control of tolerance
● Efficient use of raw materials
● Reduced energy consumption
● High production rate
● Low overall cost
In making aluminum heat sinks, cold forging can produce pins that are 50 times as tall as their diameters – an aspect ratio that is considered impossible with other methods, such as die-casting or extrusion.
Unlike stamped-fin or bonded-fin heat sinks, the pins on a forged heat sink are an integral part of its base plate – they are simply squeezed out of the base. There is no air gap or thermal interface between the pins and the base. Heat can dissipates easily from the base to the pins without additional resistance.
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