Introduction to Manufacturers of Double-Flange Combination Molds: Basic Principles of CNC Machine Tool Molds
Release Date:
2023-05-06 14:36
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Introduction to manufacturers of double-flange combination dies: From the perspective of the fundamental principles of CNC machine tool die design, this theory is based on adiabatic forming, in which high-pressure fluid is used to alter the shape of the sheet metal. During the forming process, the sheet metal is subjected to triaxial stress, which effectively improves localized forming and, consequently, facilitates the production of more complex body panels.
During operation, the hydraulic press brake is powered by connecting its electromagnetic coil to a power supply. Once energized, the coil generates an attractive force on the pin, thereby clamping the metal sheet positioned between the pin and the base. This magnetic-clamping mechanism enables the pin to accommodate a wide variety of workpiece configurations and allows for subsequent machining of the inner surfaces of the workpieces.
Introduction to manufacturers of double-flange combination dies: CNC press brakes feature multi-step program programming, enabling multiple automatic start-ups and the one-pass production of multi-step parts, thereby enhancing work efficiency. However, they place high demands on the technical skills of operators.
The mold manufacturing industry is increasingly demanding higher performance from press brake dies. In the mold production process, CNC press brakes are required for most operations, including forming dies, hot-work dies, cold-work dies, and other types of molds.

There are differences between China’s CNC machine tool industry and its international counterparts; compared with imported products, the primary gap in China typically lies in the high-speed performance of CNC lathes. Overseas, extensive research on high-speed machining has been conducted over many years, covering the underlying principles of high-speed machining, machine tool design, the impact of bending stiffness on CNC lathe accuracy, and measurement precision. Based on this research, a wide range of high-speed milling centers and high-speed machining centers have been developed and manufactured, with CNC machine tools for mold making widely employed in the production of aluminum alloy components and molds for aerospace applications.
The rationality of press brake die design and manufacturing directly affects the level of future marketing and promotion in this market, as well as users’ initial comfort and ease of use; therefore, it is essential to pay close attention to the relevant methods and techniques involved in press brake die fabrication.
1. To select the appropriate bending die for a press brake, it is first necessary to have a comprehensive understanding of the type of press brake, including its model, dimensions, and even its specific tonnage rating. Once these factors are clearly understood, they can serve as a solid basis for making an informed die selection.
2. If a press brake’s model designation has become illegible due to prolonged use, it is recommended to send sample parts produced with that press brake die to the manufacturer for custom fabrication to the exact specifications of the original die.
3. When the production process involves the use of bending-machine tooling, the requirements for the alignment and matching between the upper and lower dies are generally quite stringent. If this alignment is not properly achieved, the resulting bent parts may fail to meet the required manufacturing quality standards and specifications.
How to Extend the Service Life of Bending Machine Dies
Bending machine dies are specialized tools primarily used to bend workpieces into the desired shape. The components of different types of dies also vary. To ensure the service life of bending machine dies, the following operations should be carried out.
Double-folded edge combination die