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Press Brake Metal Forming
From simple brackets to intricate housings, Classic Sheet Metal’s Press Brake metal forming capabilities will yield quality assured parts. Our extensive metal forming equipment and highly experienced personnel can produce a variety of shapes including angles, “U” shapes, hat shapes, multiple bend shapes, “C” shapes, and off sets.
The set up procedure has become a much more dependable process due to the introduction of numerically controlled gages and rams.
When the proper tool is selected and settings are retreived, the machine will produce the same metal forming result time after time eliminating costly re-adjustments and re-inspections.
The ability to adjust the machine to hold dimension to a particular feature and to compensate for variations of metal thickness and hardness also adds to the efficiencies of this method of forming. The general precision of this machine is
+/- .016 (six sigma) to a feature or edge.
| Equipment | 2 - 10' 175 ton press brakes with n/c backgage 1 - 12' 175 ton press brake with n/c backgage 1 - 10' 100 ton press brake with n/c backgage 1 - 6' 100 ton press brake with n/c backgage 3 - 6' 60 ton press brakes with n/c backgage 2 - 6' 30 ton press brakes with n/c backgage |
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| Automation | Operators are trained and certified in the use of multiple machines. | |
| Volume Capabilities | Prototype Runs to Several Million Pieces Annually Depending on Product Complexity & Application | |
| Materials | Aluminum (all grades) Mild Steel High Strength (HSLA) Steel Cold Rolled Steel Hot Rolled Steel Galvanized Steel | Stainless Steel Austinitic (300 series) Stainless Steel Specialty Stainless Steel Copper Brass |
| Data Exchange | ProEngineer AutoCAD Master CAM SolidWorks Part Files Catia CAD/CAM | SolidWorks Assembly Files 2D & 3D DXF Files 2D & 3D IGES Wireframe other CAD/CAM Formats |
| Secondary Operations | Tooling Die Tapping Staking Value Added Process Hardware Installation Tapping & Deburring Cleaning | Heat Treating Plating Anodizing Screening Painting Returnable/Reusable Packaging |
Press Brake Forming Defined
The upper part of the press contains a punch that will press the sheet metal down into the v shaped die, causing it to bend. There are two techniques used here, “coining” where the part is hit home and conforms to the punch shape and radius; and “air bending” where the die has a sharper angle and radius than the required bend (typically 85 degrees for a 90 degree bend). The upper tool is precisely controlled in its stroke to push the metal down the required amount to bend it to the desired angle. The opening width of the lower die is typically 8 to 10 times the thickness of the metal to be bent.