Two important press brake tools
The press brake comprises two distinct components: the punch, situated atop the slide, and the die, located on the workbench below. The punch and die collaboratively operate on the metal plate to execute the bending of the workpiece. The bending process involves the application of force by the punch of the folding machine onto the metal plate within the mold. The upper die propels the slide through diverse power sources, encompassing mechanical, hydraulic, and servo motors, facilitating the extrusion of the metal plate.
Press brake operations demand precision, and the choice of dies plays a pivotal role. Among the leading options, European style Press Brake Tools stands out for their innovation and reliability,The most representative of these is the press brake tool of the Amada system. In this article, we’ll delve into the world of Amada system press brake tools, exploring their features, applications, and why industries trust them for impeccable bending results.
The Introduction of Amada system Press Brake Tools
Amada system press brake tools include not only universal standard tools, but also specially customized tools.These dies play a vital role in the precise shaping of metal sheets to meet the needs of different industries.
As a professional bending machine mold manufacturer with 20 years of experience, VEOELL not only specializes in the production of European-style bending machine molds, but also provides you with many types of other system tools.
For precise bending angles, the minimum length of the flange should be at least four times the material thickness.
V-type dies, featuring different opening widths, are matched with corresponding punches, enabling the press brake to bend various angles and work with different materials. This configuration empowers the press brake to execute bending operations across a spectrum of angles and materials.
Amada system Press Brake Punch Standards
Press brake Tools are primarily classified into three types: straight punch, gooseneck punch, and acute angle punch.
Amada system Press Brake Dies Standards
Ensuring the precise matching of punches and dies is paramount for enhancing accuracy and efficiency in the bending process, particularly with diverse types of punches and dies.
The ease of replacing standard-sized tools is heightened due to the consistent design of parts with standard dimensions. Given that these tools remain in a fixed position, minimal adjustments are necessary when replacing punches and dies, streamlining the replacement procedure.
Application of segmentation tools
The utilization of segmented dies proves advantageous in facilitating the bending of workpieces of varying sizes. Press brake tools demand exceptionally high precision, particularly in the accuracy of punches and die shoulders, as these elements directly engage the metal sheet during the bending operation. Incorporating high-precision punches and dies can minimize adjustments required during the setup phase.
Considerations in Die Selection
1. Material for Bending
The choice of metal for bending is a critical determinant. The thickness of the metal dictates the die opening, bending radius, and bending angle.
For example, certain steels possess higher strength and resistance, termed as the Ultimate Tensile Strength (UTS) of the metal. Due to variations in UTS, different strength dies are necessary.
2. Metal Thickness
Tools crafted for metal sheets may prove unsuitable for thicker materials, potentially resulting in premature wear or damage to both tools and the press brake.
3. V-Opening and Material Radius
When bending metal sheets with similar thickness and metal type, a singular V-shaped die opening size is insufficient. During the bending process, the preservation of the metal sheet’s integrity is crucial.
If the inner radius is smaller than the thickness of the metal sheet, stretching occurs, leading to deformation. A radius larger than the sheet thickness prevents deformation. The selection of an optimal V-shaped die opening requires the avoidance of radius deformation, necessitating a smaller radius.
4. An empirical guideline for the V-shaped opening of press brake dies, known as the Rule of 8, is grounded in cold-rolled steel with a tensile strength of 60,000 PSI. It mandates that the V-shaped opening should be eight times the thickness of the bending material, applicable to most bending processes.
However, this rule is not flawless, as the coefficient may fluctuate with changes in material thickness. Consequently, some V-shaped die openings are six, ten, or even twelve times the material thickness.
Thicker sheets often necessitate a V-shaped opening ten times their thickness to distribute force across a larger area, preventing cracking due to reduced ductility.
5. Impact of V-Opening on Material Radius
The V-shaped opening of the press brake dies directly influences the radius of the bending material. Generally, the ideal internal radius of the material equals its thickness. In sheet metal bending, an inner radius of less than 1 thickness results in “side bulging” at the bend.
Before finalizing the press brake die, it is imperative to identify the thickest and thinnest metal sheets for bending. The Rule of 8 aids in determining the correct size of the V-shaped die.
Commence with the smallest V-shaped die, double its size for the subsequent die, and repeat until reaching the maximum die size.
Conclusion
In short, the accuracy of any type of Press Brake Tool is very important, it represents reliability and helps to improve the efficiency and quality of metal bending operations.
VEOELL，a leading Press Brake Tools manufacturer, provides a comprehensive bending solution. Our cutting-edge equipment and dedicated team ensure top-quality standards. With continuous product refinement, we’ve gained trust across industries. Having collaborated with over 1,200 clients globally, our products are renowned in Europe, America, Japan, and Southeast Asia.
Trust VEOELL for your press brake tools all needs!
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