Extrusion aluminum VS die cast heat sink
Which is better?
There are two types of heat sinks commonly used in LED luminaires, namely profile aluminum radiators and die-cast aluminum radiators. Generally, the designer will design the corresponding structure of the heat sink according to the shape and heat dissipation requirements of the lamp. In the end, which radiator is better, there is no absolute answer.
Why we can’t get an absolute answer?
The two types of radiators have their own advantages and disadvantages, and must be analyzed from different angles, especially in combination with the specific production mode and requirements of each company and customers. It cannot be simply assumed that the use of a certain radiator is the best choice. In some cases, the aluminum heat sink of the profile is the best. In some cases, the die-cast aluminum heat sink is the best. It is necessary to choose which structure to use as the heat sink. Appearance requires beautiful appearance, and the shape of the complex luminaire should be designed as a die-casting structure. Otherwise, the shape is relatively regular, and the product with good symmetry can use the profile heat dissipation structure.
If the product of the same shape, the price of die-casting mold is high, the price of profile drawing die is lower, but the subsequent processing price of profile is high, and the price of die-casting is cheap. In addition, the price of die-cast aluminum materials is relatively cheap, and the price of aluminum profiles will be more expensive.
The advantages and disadvantages of the two types of radiators are as follows:
Aluminum profile radiator, the material is mostly A6063 material, need to open aluminum profile die.
Advantages:
1. The product heat dissipation effect is relatively good, and the surface treatment of the finished product such as anodization is relatively easy. The mold making cycle is usually 10-15 days, and the mold price is cheap.
2. The surface of the aluminum profile heat sink is anodized for surface treatment to increase the corrosion resistance, wear resistance and appearance of the aluminum material.
Disadvantages:
The later machining costs are higher and the output is lower.
A6063 chemical component：
A6063 mechanic properties：
ZL102/A380/ADC-12 materials are often used for materials, and die-casting molds are required for die-casting radiators.
Advantages:
low processing costs and high productivity, if the mold allows the production of radiators of various shapes.
Disadvantages:
high mold cost, long mold production cycle, usually takes 30 to 45 days.。
ZL102 material component：
ZL102 Mechanic properties：
In short, in the actual design of the radiator, it must be combined with the specific use, comprehensive considerations need to consider various factors, on the basis of the maximum to minimize the cost of new products, including material costs, mold costs, etc., in the use of lamps The choice of the right structure in the context of environmental and safety, the key is that the structure selection requirements are reasonable, the heat dissipation effect is relatively good, only to achieve this point, the best design solution for the LED heat sink is found.
We Reigstone dedicated in aluminum heat sink with die casting and extrusion processing
for many years, our experienced engineer team can assist you to figure out the best solution on heat sink, also deliver the final quality parts to your hands at the short period.
Features of Reigstone die casting heat sink.
Good thermal conductivity
More thin fins, larger the heat sink area in the same volume, promote the heat releasing efficiency.
Smooth surface
Smooth and flat surface makes appearance looks beautiful, and good texture.
Class 2-3 for die casting surface we can guarantee, following NADCA standard.
Quite compact
Enough compact can make the part stronger on the aspect of mechanical properties. Instead your other idea maybe with steel or other heavy metals, save cost on material and transporting.
Precise dimension tolerance
Our as-cast usually can achieve CT5-CT4 grade, obviously it can reduce some machining processes and cost with such accurate casting dimension tolerance.
Reigstone die casting service
Ø Tooling design:
Reverse engineering
3D building
Cavity filling simulation
35days for normal tooling manufacturing, specific case depends on dimension and complexity of the part.
Ø Die casting
Material: ADC-12/ADC-10/A380/383/AlSi10Mg/others
Casting grade: CT-5 -CT4, following ISO-8062
Casting machine type: 200/280/400/630/800/1250, by LK, total 7 sets.
Casting weight: 20g-12kgs
Projected area: max 700*500*400mm
Ø Secondary CNC machining
GD&T grade: Limited 0.003mm
Machining equipment:
16 CNC machining centers, by Haas, USA and UTIG, South Korea.
14 CNC Lathe,
2 Automated turning centers, by Takisawa, Japan
20 Bench Drills
20 Threading machines.
Ø Surface finish:
plating/electrophoresis/powder coating/painting/anodizing/ polishing/sand blasting/shot blasting
Ø Diversified packaging:
carton/plywood pallet/ plywood pallet box, customized packaging solution is also available.
On-time delivery: 97% on-time delivery rate was our last year record, we are well ready to satisfy you with much faster service in coming new orders.