Aluminum led heatsink has the advantages of light weight, beautiful and durable, high heat dissipation rate, good shapeability, etc., and has been widely used in air conditioners, coolers and radiators. In my country, the use of aluminum profiles for radiators is becoming more and more popular, and aluminum extrusion molding is the main form. This is because the aluminum extrusion molding has a good size consistency, a short production cycle and a relatively low cost. In the extrusion production process of aluminum led heatsink, the extrusion die is of great significance to realize the entire extrusion process. Extrusion die is the basic tool to ensure that the product is formed and has the correct shape, size and accuracy. Reasonable extrusion tool structure, shape and size can control the internal structure and mechanical properties of the product to a certain extent, especially in terms of controlling the weld structure and mechanical properties of hollow aluminum products,…