Hello, I have a Titan 25T Press Brake. It’s my first entry into the world of using press brakes, and I have been having some trouble bending wider pieces. I’m bending some pretty thin sheets of aluminum, typically .040" or .063" 5052 aluminum, and I find that anything over about 8 inches is getting some deflection from one end to the other. I have tried using different combinations of dies, tried moving from one end to the other or right in the center, and it always tends to do just have a slight deflection where the bend line curves a little and it overbends one end. Is there a calibration or something that we can do in the machine to fix this? We bought this machine to bend these long bends but so far haven’t been able to implement it into our shop’s work flow trying to work out what to do this this problem. Any advice is appreciated.
RE-LEVELING THE TABLE
Once you have installed the new hydraulic cylinder and seated the ram, you will need to re-align the table with the ram by following the following steps.
Checking the Table
You will need to take measurements to ensure squareness and you will need to check the ram to table opening.
2x4x6 block method.
- Remove the outer punch clamps and any punches and dies currently installed.
- In manual mode, bring the ram to -2.400”.
- Using one 2-4-6 block or two stacked 1-2-3 blocks, raise the ram until the 6 inch stack just barely slips in between the table and the ram under the linear rail. Record the ram location from the Live Report window.
- Check the other side in the same manner and record the ram location from the Live Report Window.
- These values should be within 0.004”
Caliper Method
- Remove the outer punch clamps and any punches and dies currently installed.
- Leave the ram seated against the cylinders at a 0.000 position, and take a caliper measurement on each side. If need be, you can lower the ram to a point where you can measure it with shorter calipers, but the ram has minor calibration fluctuations that may prevent an absolutely perfect measurement.
- These values should be within 0.004”
More information can be found in chapter 13 of the operations manual.
https://www.langmuirsystems.com/titan25t/assembly#titan25t-manual-13
Adjusting the Table for Parallelism
If the above measurements are outside .004”, you will need to adjust your table. The measurement method used in the checking the table section will be used again here.
2x4x6 Block Method.
- Loosen all 4 table mounting bolts but keep tension on the bolts. They should move with a ratchet but not by hand.
- Loosen the 4 bolts that attach the Titan to the Stand. This is needed to ensure proper movement and alignment of the table.
- Using the jack screw on the low side, adjust the ram upwards until the 6 inch block stack makes contact with the ram.
- Remove the gauge block stack.
Caliper Method
- Loosen all 4 table mounting bolts but keep tension on the bolts. They should move with a ratchet but not by hand.
- Loosen the 4 bolts that attach the Titan to the Stand. This is needed to ensure proper movement and alignment of the table.
- Using the jack screw on the low side, adjust the ram upwards until the caliper measurement on the left hand side matches the caliper measurement on the right hand side
The jack screw in step 3
Securing the Table Once Adjusted
- Tighten the 4 bolts that secure the table to the uprights.
- Adjust the jack screw lock nut to secure the table in a fixed location.
- Measure the ram to table opening distance using chapter 13 of the operations manual or the ‘Checking the Table’ step in this guide.
- In the settings tab enter the value above and hit save. The table can be out of square by up to 0.004”. This is addressed by averaging the 2 values for the ram to table opening.
The ram to table opening input in the settings menu.
- Test bend 3 items and check the table to ram squareness (step 1).
- Repeat the adjustment if the table is more than 0.004” out of adjustment after the test bends.