How to Anodize Aluminum Heat Sink?

The anodized aluminum heat sink is a heat sink after the oxidation process. The oxidation process is a common surface treatment method.

It will attach a layer of oxide film on the surface of the profile to enhance the corrosion resistance of the surface of the radiator and make the profile more durable, also more beautiful.

The following is a case display of how we negotiate the anodized aluminum heat sink with our customer.

Anodized Aluminum Heat Sink Design phase communication

Date: 23^nd Otc 2022

Today we received an inquiry from UK, the customer wants to buy anodized aluminum heat sink, 200 mm wide, 30 or 40 mm thick, 230 and 330 mm long, the quantity is 10 pieces.

Considering the small qty, we recommend a standard heat sink instead of the custom heat sink to save the customer’s mold fee.

Considering the small qty, we recommend instead of  to save customer’s mold fee.

We have hundreds of standard heat sink with section widths from 10 to 400mm.

The customer selected GY241 from our catalog.

Based on our existing model, the customer asked us if we can do two types custom aluminum fabrication according to his drawings, one is drill holes, another is tapping, we answer him we are professional in CNC process, and we have own CNC workshop, we can finish customer’s projects under one roof.

Customer is very happy to hear that, and told us some process details.

About the models, we recommended one that was more similar to the customer’s size, and the customer accepted it.

Standard Heat Sink Preliminary Quotation

The next day, we quoted the black anodized aluminum heat sink price according to the customer’s request:

The customer is very interested in our price, and it saves his mold fee.

So he placed the order directly after receiving it.

Anodized Aluminum Heat Sink Bulk Production

According to our extruded heat sink model, we re-publish the drawing including machined process for customer confirmation.

The customer confirmed our drawing quickly, we start production.

Only 20 days, we completed the order since it is a standard model, We sent photos of the product to the customer, the customer confirmed some important details, and we shipped.

Anodized Aluminum Heat Sink Feedback

Date: 5^nd Jan 2023

The customer received the anodized aluminum heat sink samples and provided feedback that everything is good.

They are very satisfied with the details of the product, such as surface treatment and threaded holes.

The customer said that their quantity is relatively small because it is still in the testing stage. Once they enter mass production, they will give us an order as soon as possible, which is expected to be in early 2024.

We are very pleased with the high praise from our customers and maintain a good cooperative relationship with us.

In addition to black anodized aluminum heat sink, Wellste can also make many other colors, such as silver, gray, blue, red, etc.

As long as you provide our international color card, we can meet your color needs.

Also, we have other types heat sinks, such as forged heat sink, pin fin heat sink, die cast heat sink, bonded fin heat sink, skived fin heat sink.etc, different types meet your different applications.

Some Thoughts from Wellste

For customers who require larger sizes but smaller quantities, we recommend using existing molds whenever possible to save on expensive mold costs and also expedite production.

Additionally, we can also accommodate customer-specific machining on our existing mold products to meet their assembly requirements.

In summary, we provide various alternative options to maximize customer benefits.