Stamped Heat Sink for Electronic Thermal Management

A heat sink is a device that dissipates heat from a heat source. In modern society, heat sinks are widely used and can be used as heat sinks for electronic components such as CPUs, power tubes, line tubes, and power amplifiers. Aluminum alloy has many advantages such as economical price, high thermal conductivity efficiency, moderate hardness, and good processing performance. Therefore, aluminum alloy heat sink is the most widely used heat sink. Stamping is one of the most widely used radiator solutions because it is economical and efficient.

Stamped Heat Sink for Electronic Power Adapter

The main purpose of stamping in the process of making radiators is to make radiator fins, cooling fins, fan frames and other components. These stamped radiators are made by placing metal sheets under pressure, and the metal sheets are cut, bent, and punched through a progressive stamping process under the action of a mold to produce parts of various shapes. In order to improve the heat dissipation efficiency of aluminum alloy heat sinks, it is often necessary to stamp aluminum alloy sheets into heat sinks with certain shapes and textures, which can increase the surface area to increase the heat transfer of board-level products. Stamped heat sinks are designed for specific electronic packaging types to ensure optimized fit and functionality. These heat sinks are available in a variety of mounting methods, including solder tabs and pins, an interference fit to the device through integrated clips or slide-in features, or through-hole hardware such as screws and nuts. Most stamped heat sinks come with a surface treatment to improve thermal radiation and thermal performance in natural convection applications.

However, if the existing aluminum alloy stamping process is directly used to manufacture aluminum alloy heat sinks, many practical contradictions will arise. For example, how to design a reasonable stamping process to ensure that the aluminum alloy heat sink has good mechanical properties after forming and will not deform or crack after long-term use in hot and cold environments; in addition, the use of stamping oil is conducive to meeting product and surface accuracy and protecting equipment. , but conventional stamping oil will form an oil film on the surface of the aluminum alloy and in the surface pores under the action of high temperature, which cannot be completely removed, resulting in a decrease in heat dissipation performance.

Hongwei Technology improves the efficiency and quality of radiator manufacturing by optimizing the stamping process and using high-precision stamping machines. And design and manufacture more personalized and customized radiators to meet the different needs of customers. At the same time, new stamping technologies and materials are developed to improve the efficiency and performance of radiators and make products more competitive.