The process design for LED street heatsinks typically involves three key steps:

1. Outline Design: Design the outline of the LED street heatsink based on actual needs and relevant constraints.

2. Optimization: Optimize the thickness, shape, spacing, and substrate thickness of the heatsink fins according to relevant heat dissipation design criteria.

3. Verification: Use thermal analysis software to design, verify, and check the calculations of the LED street heatsink.

For natural heat dissipation, it’s essential to consider that the temperature boundary layer is thicker during natural cooling. If the space between the heatsink fins is too small, the thermal boundaries of adjacent fins can overlap, affecting surface convection. Therefore, for naturally cooled heatsinks, the fin spacing should generally be greater than 12mm. If the fin height is less than 10mm, the spacing should be at least 1.2 times the fin height.

Due to the weaker heat transfer capacity of naturally cooled heatsinks, adding ripples to the fin surface has minimal impact on natural convection. Thus, the fin surfaces do not need excessive ripples. Instead, a phosphating treatment can be applied for anti-corrosion, increasing the surface's radiation coefficient to enhance heat transfer.

It’s also important to note that natural convection takes a relatively long time to reach thermal equilibrium. Therefore, the substrate and fins of the heatsink should be thick enough to withstand the impact of transient heat loads.　　

Aluminum alloy heatsink profiles are widely used in LED electronic products and LED street lighting fixtures, especially high-power LED products, due to the following three advantages:

1. Customizable Appearance: Aluminum alloy profiles are lightweight yet strong and can be extruded into various shapes based on customers' heat dissipation needs.

2. Corrosion Resistance: Aluminum heatsinks are resistant to corrosion, exhibit minimal deformation, possess strong fire resistance, and have a service life ranging from 50 to 100 years.

3.Oxidation Resistance: These profiles undergo various treatments to resist acid and alkali erosion. They remain free from air pollution and maintain their inherent color and luster over time.

In addition to their application in high-power electronic products, LED profile heatsinks are highly advantageous in the LED industry. This has led many to question whether to choose aluminum cold forging or aluminum profiles for customized LED heatsinks. Which offers better heat dissipation?

Here's an explanation of the advantages and disadvantages of both processes to help you make an informed decision:

1. Aluminum Cold Forging:

   - Advantages: Cold forging allows for the use of almost any material, has low processing costs, and high production capacity. The mold production cycle is short, typically taking 10 to 15 days, and the mold cost is low.

   - Disadvantages: The forging process has limitations, preventing the production of complex products, making it less suitable for a market with rapidly changing demands.

2. Aluminum alloy profiles for LED heatsinks:

   - Material:Typically, A6063 aluminum is used, often in a sunflower shape.

   - Advantages: LED heatsink aluminum profiles have good heat dissipation and are easy to surface treat, such as through anodizing. The mold production cycle is short, usually 10 to 15 days, and the mold cost is low.

   -Disadvantages: These profiles require additional machining in the later stages, and the output of finished products is not as high as with cold forging.

Lori has been customizing aluminum heat sinks for 20 years, serving over 6,000 customers and working with more than 10,000 sets of molds. With extensive experience in custom development and production, Lori is well-equipped to meet your needs. If you're looking for a reliable LED aluminum heatsink manufacturer with excellent service and experience, or if you have any questions about aluminum heatsinks, you can directly consult our online engineers.