In the daily machining process, we often encounter some unconventional materials. Due to the lack of understanding of the material properties, we often encounter various difficulties in the processing process, which are difficult to solve. So today we will discuss a kind of Unconventional aluminum - high silicon aluminum processing, what is the difference between high silicon aluminum processing and our conventional aluminum processing? First of all, let's get to know high silicon aluminum, the density of high silicon aluminum alloy is 2.3~4.7 g/ cm3, and the coefficient of thermal expansion (CTE) is between 7-20ppm/℃.

Increasing the silicon content can significantly reduce the density and thermal expansion coefficient of the alloy material. At the same time, high-silicon aluminum alloy also has good thermal conductivity, high specific strength and stiffness, good plating performance with gold, silver, copper, and nickel, weldable with substrates, and easy precision machining. It is an electronic packaging material with broad application prospects, especially in high-tech fields such as aerospace, space technology and portable electronic devices, high silicon aluminum materials have light density and brittleness. High-silicon aluminum processing is considered from the material itself.

Sharp tools are easy to wear, and non-sharp tools are easy to collapse. Therefore, high-silicon aluminum processing tools should be sharp and wear-resistant, and must be targeted, while processing ordinary aluminum materials is ordinary. Alloy knives are all doable and have great tool life. In the process of high-silicon aluminum processing, it is also necessary to pay attention to the life of the tool and to replace the tool regularly, because once the tool is worn, it is easy to cause the product to collapse, resulting in the final scrap of the product.

In the eyes of All-terrain utility Carrier most machining technicians, high-silicon aluminum processing is no different from ordinary aluminum processing. Those who have experienced high-silicon aluminum processing will understand that the difference between the two is still very large, and the cost of high-silicon aluminum materials is high. The scrapping cost is also high, the material processing is difficult, and the tool cost is also high. Therefore, before high-silicon aluminum processing, the tool selection and equipment parameters should be used to set the process to ensure the pass rate of high-silicon aluminum processing.