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Beyond metal fabrication:
your partner for growth
Beyond metal fabrication: your partner for growth contact us
Press brake bending represents a fundamental methodology in metal processing, widely used in contemporary metalworking to shape sheet metal through bending techniques.
The procedure allows for the conversion of simple metal sheets into complex structural elements, which have become essential in numerous industrial sectors.
This technology is based on the use of specific press brake machines that perform permanent deformations on laminated metal materials.
In our daily lives, we continuously encounter products manufactured through this process: from cutlery to dishwashers, from window hinges to car components, from furniture elements to external structures such as roofs and canopies.
Sheet metal bending finds application in multiple sectors, with particular relevance in the construction field.
Our inventory is efficiently organized and safeguarded against stockouts through digital management, allowing us to fulfill orders immediately.
Press brake bending constitutes a forming method that allows for modeling metal sheets, giving them specific shapes and well-defined angles through the use of special presses – hence its name, composed of the two terms “press” and “bending.”
This technique is characterized by its ability to generate elaborate metal components, necessary in various industrial sectors, from the automotive field to aeronautics, and construction.
The process begins with the correct positioning of the metal sheet between two elements of the die: the matrix in the lower part and the punch in the upper part. The latter, exerting controlled pressure downward, pushes the metal into the shaped matrix in a way that complements the desired profile. During this phase, the metal undergoes a plastic transformation that permanently modifies its conformation without resorting to cuts or assemblies with other elements.
The available tools range from traditional presses, where the operator directly manages the process, to advanced CNC (Computer Numerical Control) systems like those adopted by Canfora, which allow for detailed programming of operations. These computerized systems can manage complex tasks with extreme precision thanks to their programming capability, ensuring repeatability and superior quality in finished products.
Elements such as the intensity of the applied force, the inclination of the bend, the movement speed of the punch, and the type of metal are determining factors for the quality of the final product. Careful monitoring of these factors minimizes the risk of imperfections, such as cracks or unwanted deformations.
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Press brake bending finds its foundation in the principles of plastic deformation, a mechanical phenomenon through which a metal material is subjected to a force that exceeds its elastic limit without reaching the breaking point, thus allowing it to assume a new permanent configuration.
When a metal material is subjected to stress, initially a reversible elastic deformation occurs. In this phase, if the pressure is interrupted, the metal spontaneously returns to its original shape. However, when the stress exceeds a specific threshold, called the yield point, the material enters the plastic deformation phase. It is precisely at this moment that press brake bending intervenes to model the metal, creating a definitive transformation of its shape.
This principle is essential in metal processing aimed at producing components with precise angles and complex structures.
Bending machines are the protagonists of the entire press brake bending process, proving essential for transforming engineering concepts and technical projects into concrete metal components. These machines can differ significantly in terms of technical characteristics, capabilities, and levels of automation, each adaptable to specific production needs.
Particular attention should be paid to computer numerical control (CNC) presses, which have revolutionized the sector thanks to their ability to program and control with extreme precision every aspect of the bending process, representing a point of excellence in Canfora’s offering.
These advanced systems can be programmed to perform complex operational sequences, allowing multiple bends in automatic mode, where the machine can create articulated series of bends with a single initial setting.
They also guarantee high repeatability, ensuring that each piece is processed with identical precision, thus reducing the margin of error and increasing the qualitative consistency of production. Finally, they significantly increase production efficiency, a crucial aspect especially when processing large batches.
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As previously mentioned, various mechanical elements significantly influence the press brake bending process. The bending force represents a crucial aspect, as the intensity of the pressure exerted directly affects the depth and angle of the bend obtained; insufficient force might not adequately deform the material, while excessive pressure risks causing damage or unwanted alterations.
The bend angle constitutes another fundamental parameter, as it determines the definition of the bend itself; more pronounced inclinations require greater precision to avoid the emergence of excessive tensions that could compromise the integrity of the material.
The type of metal and its thickness also play a determining role, as different materials react differently to press brake bending by virtue of their intrinsic mechanical properties, such as hardness and ductility. The appropriate choice of metal, together with any preliminary heat treatment, can significantly influence the quality of the process and the final product.
The selection of adequate material and its correct preparation represent decisive steps in the press brake bending process, as they influence not only the quality of the final product but also the efficiency and safety of the entire production cycle.
The choice of suitable material depends on multiple factors, including mechanical resistance, ductility, sheet thickness, and the complexity of the component to be made. Among the materials commonly used in our metalworking shop is aluminum, appreciated for its lightness combined with good resistance, characteristics that make it ideal for applications where weight is a determining factor, such as in the automotive and aeronautical sectors.
Equally utilized is stainless steel, particularly known for its resistance to corrosion, used in environments subject to severe conditions or in the production of items that require high hygienic standards.
Before starting the press brake bending process, it is essential to perform a series of preparations to ensure that the material and machinery are adequately prepared.
Cleaning represents an indispensable initial step: metal sheets must be accurately degreased to eliminate oil, greasy residues, dust, or other impurities that could compromise the quality of the bend.
Lubrication constitutes another important preparatory phase: the application of a specific lubricant reduces friction between the metal and the bending tools, thus facilitating the process and improving the finish of the product. Finally, the calibration of instruments represents a fundamental aspect: it is necessary to ensure that all components, including punches and dies, are correctly calibrated and in optimal conditions, an essential requirement to maintain high standards of precision during the entire bending process.
La carpenteria è la fase finale: assembla le parti metalliche che le macchine tagliano e deformano. Il vantaggio è che tutti i processi sono svolti e coordinati internamente minimizzando errori e tempi morti.
The multi-axis welding robot facilitates access to the weld joint, ensuring an optimal weld pool and guaranteeing consistent welding quality during continuous 24-hour operation.
Thanks to the excellence of our work and the complementarity of our processing, our clientele extends well beyond the Turin borders, embracing the entire Piedmont territory and reaching also the Aosta Valley and Liguria, regions from which we receive constant requests for our specialized services in sheet metal bending.
We invite you to contact us to discover how our metalworking shop, characterized by quality, experience, and punctuality, can significantly contribute to improving your production processes.