7A04 alloy is an Al-Zn-Mg-Cu series heat-treatable aerospace super-hard aluminum alloy, which can be heat-treated and strengthened Its composition has been listed in GB T3190-2008, and it is compatible with the B95 alloy of the Soviet Union and Russia and the AlZnMgCu1 of Germany 5 3 4365 alloy is equivalent, because in 1944 the Soviet Union’s 95th factory successfully trial-produced this alloy semi-finished product, hence the name B95 alloy In 1957, China Northeast Light Alloy Co , Ltd (

Sheet metal is a metal processing technology that performs a series of processing such as shearing, cutting, punching, and folding of metal sheets Most of the processed materials are steel plates, and the processed products are widely used, especially in the automotive industry However, in recent years, some sheet metal parts have been gradually replaced by thermoplastics So what caused it?

Aluminum has many advantages such as low density, high specific strength, good corrosion resistance, high electrical and thermal conductivity, weldability, good plasticity, easy processing and forming, and excellent surface decoration properties Aluminum alloy is made of pure aluminum by adding some alloying elements Aluminum alloy is better than pure aluminum Aluminum has better physical and mechanical properties Due to the relatively active nature of aluminum, it can spontaneously form an a

Stretching die machining is an indispensable process equipment for stamping production, and it is a technology-intensive product The complexity of the machining structure will inevitably lead to the complexity of the shape of the mold parts The following explains the knowledge about the commonly used CNC standards for drawing mold machining

High-speed steel (HSS) is a tool steel with high hardness, high wear resistance and high heat resistance, also known as wind steel or front steel, which means that it can be hardened even if it is cooled in the air during quenching, and it is very sharp It is also called white steel