The process of forming flat sheets made of sheet metal, using press brakes or eccentric presses, equipped with appropriate bending tools: dies and punches or special binders. The process is semi-automatic, with the participation of the operator and using the control software. It enables bending with a very high, repeatable accuracy assumed in the technical documentation. Separate self-testing procedures implemented additionally ensure and guarantee high quality bending.
We have appropriate experience and technical capabilities to make or modify specialized tools and instruments used in the bending process. Depending on the technical assumptions, volume of production series, production costs, it is possible to use one or both bending technologies using:
- brake presses,
- eccentric presses.
Bending using an brake presses
We use the following brake presses:
- LVD PPEB – with 80 tons of pressure,
- Amada ITPS 50.12 – 50 tons of pressure.
We have a large number of appropriate punches and dies enabling bending, with various radii and we constantly increase their range.
CNC control in each of the machines enables quick preparation of the machine for work, automatic visualization of each bending and continuous control of all parameters having a direct impact on the repeatability and quality of operations.
Specifications
| max. length of the bending part: | 1980 mm |
| thickness of the part sheet: | 0.3 mm - 3.00 mm |
| bending radius: | 0.2 or 2.0 or any other according to arrangements and tools; |
| bending accuracy: | from +/- 0.10 mm; |
| bending angle: | depending on the requirements and tools available. |
Examples of solutions
Cover of LED displays controller
Made of 1 mm thick steel sheet, using technology of: laser cutting, edge bending, powder coating. The cover requires bending operations of high precision. The fragment of the cover shows the execution of the bending closing edge on the so-called “overlap”.
Cover for 3D printer mechanism axis
Made of 1 mm thick chromium-nickel steel sheet, with a specific type of surface grinding, covered on one side with a protective foil, using technology of: laser punching, bending on an edge press using a dedicated press tool. The fragment of the part presents the method of securing the surface of the outer cover by using a sheet covered with one-sided protective foil. The use of such a sheet ensures protection of the part from damage in the production process and in transport.
Parts of the fan module for control cabinets
Made of hot-galvanized steel sheet, with the use of laser cutting technology, edge bending on CNC controlled machines, pressing of appropriate PEM’s. The parts provide high resistance to weather and operational conditions.
Mechanical parts of the cash desk
Made of high quality steel sheets, using: laser cutting, bending, powder coating with appropriate paints ensuring resistance to abrasionand other operating conditions for a long time. The pressed PEM’s enable the assembly of electronic components.
Bending using an eccentric press
We use the following veccentric presses:
- HEL Wita – with a pressure of 100 tons;
- HEL Wita – with a pressure of 40 tons.
and specialized tools: dies and binders, designed and made by us at the stage of implementation of the production of a particular part.
The technology is primarily used for bending parts from 0.1mm up to 10.0mm thick, where a high pressure force is required or the design of special tool which performing punching and binding at the same time requires it.
The advantage of this bending technology with the use of specialized tools is to limiting to one bending cycle, for large and very large production series and achieving repeatable bending accuracy below +/- 0.1 mm. The technology is also used in the production of parts of a special shape with high operational requirements and specialized use.
Specifications
| max. dimensions of the part for bending | 800 mm x 800 mm; |
| sheet thickness | 0.1 mm - 10.00 mm; |
| bending radius | according to arrangements and special tools; |
| bending accuracy | less than +/- 0.10 mm; |
| bending angle | depending on the assumed structure and the tool. |
Examples of solutions
Brackets that fix LED display elements
Made of 5 mm thick aluminium sheet and pressed screws with metric thread of different diameters, using the following technology: laser cutting, bending, assembly of sleeves on eccentric presses and plasma welding of positioning brackets. They ensure a very strong connection and are additionally protected against adverse weather conditions by powder coating with appropriate paint.
Assembly covers
Made of hot-galvanized sheet steel, 2 mm thick, using the technology of: laser cutting, edge bending, gas welding and powder coating. Dimensional repeatability was achieved by using dedicated positioning devices for reinforcing brackets in the welding process and resistance to external atmospheric conditions through the use of a suitable powder paint.
