Tool testing and try-out
Press lines such as those used in the automotive industry or its suppliers are designed for maximum efficiency. This means that any downtime in production and especially during new startups must be avoided.
When changing products, it is therefore extremely important that new molds immediately achieve the required quality and the planned performance.
For this purpose, the new molds are optimally prepared for the series run on so-called try-out presses in the run-up to mold making. Here, DUNKES offers customized try-out presses for your individual requirements.
Try-out presses are designed so that near-production conditions can be achieved and simulated.
-
Flexibility in terms of die design (dimensions, pressing forces, strokes, die cushion function, ejector)
-
Variable press force control between 10% – 100%. This allows the press force to be optimally adapted to the different dies and processes.
-
Plunger and die cushion speed control; thus, the motion sequences of mechanical presses can also be optimally simulated.
-
High accuracies in terms of parallelism between press table and slide, even with off-center loading, due to the use of high-quality 8-fold guides and an actively acting parallel control. The parallelism deviation here is < 0.075mm/m. The integrated sensor system of the highly dynamic control system detects the initial tilting that occurs in particular when the molds are started up, and the servo valves integrated in the control loop compensate for this in the range of milliseconds. If the maximum permissible parallelism deviation is exceeded, the press is stopped immediately.
-
The presses feature sensitive hand lever control by means of a joystick. This allows sensitive motion sequences to be manually controlled for finding and tuning the required production parameters. For spotting operation, too, the sensitive hand lever control offers smooth movement of the mold halves together.
-
Hold-downs or ejectors in the pusher as well as actively acting individual drawing cushions form the basis for a multifunctional wide range of applications.
-
Integrated DUNKES cutting shock absorbers eliminate punching and cutting shocks when breaking through the material.
-
Stepless ram locking over the entire stroke length. This allows the optimum ergonomic working height to be set for tool machining, for example. The system locks purely mechanically and is monitored electrically. The locking status is displayed on the operator screen and additionally via a light unit on the press stand.
-
Press control with very high operating comfort. Selected Siemens system components, together with the software used, enable clear programming, navigation, storage and transfer of process and tool data with a high level of convenience.
