How To Bending Large Radius Sheet Profiles In DELEM CNC Press brake controller
Using CNC press brakes to bend large circular arc workpieces by programming is an important technique in metalworking. CNC press brakes enable high precision and accuracy in bending large radius workpieces. Programming is also efficient as it eliminates the need for manual bending and measurement.
In this article, we will discuss how to use a DELEM CNC system to program and bend large-radius circular arc workpieces. The article will outline in detail the programming steps required for this process.
Step 1: Collect Specifications and Input into the CNC press brake
The first step is to gather the specifications for the workpiece. The specifications will include information on the type of material to be used, the thickness and width of the sheet metal, the radius required, and so on.
The next step is to enter the gathered information into the CNC system. You need to input the material thickness, the bending angle, the radius of the bend, and the distance between the bends. Input all variables into the CNC controller so that it can perform the necessary calculations and generate the bending sequence.
Step 2: Create a 3D sheet metal bending Model of the Workpiece
After inputting the specifications, the next step is to create a 3D model of the workpiece using a CAD software. The 3D model should include the geometry of the bending sequence.
Once the model is complete, it should be saved in a DXF format and then transferred into the CNC controller. The 3D model serves as a reference for the machine to follow the bending sequence.
Step 3: Program the CNC Press brake bending machine
To create a program for the CNC controller, navigate to the programming section of the CNC programming software.
First, input the start point and the end point of the bend. Then, input the radius of the bend and the distance between the bends. You will also need to specify the angles of the bend.
Keep the same values for all the radius parameters; however, make sure the angles are different in every bend.
Step 4: Set-Up CNC Press brake
Ensure the machine is set up for the work being done. The machine must be configured to handle the specifications of the workpiece, including the appropriate tool set-up and tooling die to be used.
You will also need to provide the sheet metal that you will use to create the workpiece.
Step 5: Test and Optimize the metal bending Program
After setting up the machine, the next step is to test and optimize the program. Testing ensures that the program is correct and that the bending sequence produces the desired result.
The optimisation process will help you determine the best settings for the machine and the best parameters for the workpiece. The goal of the optimization process is to attain the optimal speed of the machine while still maintaining the required precision and accuracy.
Step 6: Execute the bending sheet Program
Once the program is tested and optimized, you can start executing the program. The machine will automatically execute the bending sequence based on the input specifications and the 3D model.
The machine will also perform the calculations for the bending sequence. It will determine the position of the bending tool, the angle of the bend, and the stopping point. Make sure that the operator follows the program closely to avoid mistakes.
Step 7: Finish and Inspect the sheet metal bending Workpiece
Once the bending sequence is complete, remove the workpiece from the machine. Inspect the workpiece carefully to ensure that it meets the required specifications. Check the angles of the bend, the radius of the bend, and the distance between the bends.
Conclusion
In summary, the process of bending large radius workpieces using CNC press brakes requires careful planning, programming, setup, testing, and optimization. The use of CNC systems like DELEM makes the process more efficient and accurate.
Following the outlined programming steps detailed in this article will enable one to create high-precision and accurate large radius circular arc workpieces on a DELEM CNC system.
