Industry News

Compared with the machining of external cylindrical surfaces, Precision CNC hole machining is carried out under far less favorable conditions and is generally more difficult. 

Aluminum alloy is an important industrial material, yet deformation is likely to occur during the machining of thin-walled or thin-plate components.

In numerous fields such as industrial manufacturing, automotive parts, and electronic equipment, surface treatment is a core process for improving product quality, extending service life, and enhancing appearance. Whether it's preventing metal corrosion, improving coating adhesion, or achieving special functions (such as wear resistance, high temperature resistance, and insulation), choosing the right surface treatment technology can empower products and reduce subsequent maintenance costs.

This article provides an in-depth overview of the knurling process, its types, tools, and common defects.
Knurling not only improves part grip and functionality but also adds aesthetic value—making it ideal for mechanical, automotive, and decorative applications.

NPT (American Standard Tapered Thread)

PT (Japanese Old Standard Tapered Thread) is equivalent to ISO R, Rc.

DIN 2999 is a European, primarily German, pipe thread.

In CNC machining, the costs vary depending on the specific machining project. The cost of a CNC machining project is determined by many factors. In most project plans, cost is a crucial factor to consider.

Austenite, ferrite, pearlite, bainite, martensite.

Interference fit parts achieve a tight connection by relying on the interference amount after the components are assembled. After assembly, due to the elastic deformation of the materials, pressure is generated between the mating surfaces. Therefore, during operation, there is a considerable frictional force between the mating surfaces to transmit torsional or axial forces. Interference fit assemblies are generally non-removable fixed connections. The assembly methods for interference fit parts are: (1) manual hammering, (2) press-fitting, (3) cold fitting, and (4) hot fitting.

Aluminum alloy die casting is a precise manufacturing process that injects molten aluminum into a mold under high pressure to produce lightweight, durable, and complex parts. This technique is widely used in automotive, aerospace, and electronics industries due to its excellent surface finish, corrosion resistance, and cost-efficiency in mass production.

This article introduces three commonly used hardness testing methods for metallic materials — Brinell hardness, Rockwell hardness, and Vickers hardness. It explains their principles, applications, and differences, and includes a comparison table based on the German standard DIN 50150, showing the correlation between hardness values and tensile strength.