|
Welcome to the EPMA Members New Products Area
|
|
 |
|
|
The Concept The new press concept TPA HS comprises a complete line of presses from 150 kN to 1.200 kN pressing force. The actual tool parts are installed directly in the machine and fixed by quick-action clamping systems. No die sets are required. The tool holding fixtures also serve for centering and allow a rapid and efficient tool change. The tool guiding devices are integrated in a most rigid press frame and support the clamping systems for the individual levels. These extremely wear-resistant guiding devices are practically maintenance-free and ensure maximum precision. The stationary die is located in the machine frame and serves as reference; a "balancing to zero" of the system is no longer necessary. This concept provides considerable advantages for the production process, such as an increased flexibility and availability of the automatic press and the elimination of costs for investment, storage, maintenance and repair of die sets. Flexibility The concept from DORST Technologies to press compacts without a die set is unmatched regarding the flexibility needed for the production of PM-parts. As a mechanical sub-assembly, die sets have individual features, such as guides rebounding, which influence the dimensions of the pressed part. The production of high-quality compacts therefore requires compensation of these influences by different settings of the automatic press, resulting in time-consuming and expensive set-up work. On the TPA HS, the actual tool parts are installed directly into the wear-resistant clamping system of the press, allowing an instant start of the production using the existing machine program maintaining maximum precision in axial and radial direction. This can be applied to any machine of the TPA HS series and significantly reduces the time needed for the production start-up. This flexibility also allows a centralized product development. Experts develop and optimize the pressing tool and the associated machine program; these data will then be transferred in production. The series production of the PM-parts can take place immediately at any site without the need for additional adjustments. These innovations of the series TPA HS are complemented by the control system DVS/DCSÒ and by the award winning "Intelligent Program Generator" IPGâ, both successfully operating world-wide since many years. Coupled with an excellent hydraulic system that has a proven performance in daily operation, the new automatic presses TPA HS are capable of meeting the most stringent requirements for continuous operation. New Options Along with the new series of TPA HS presses the product range from DORST Technologies features these additional innovations: ·Cross hole pressing For the carbide industry, DORST Technologies has already successfully introduced the technology of cross hole pressing on the TPA 15 HS. By now the machines possess higher pressing forces and are capable to produce parts from metal powder and other materials. For many part families, cross hole pressing means significant cost savings. ·Side compaction (production of undercuts) This option is a spectacular leap forward in pressing technology from uni-axial pressing to multi-axial pressing. Up to six separate, freely adjustable and independently closed-loop controlled pressing punches operate in perpendicular direction to the main pressing direction. Undercuts – up to now nearly impossible to master – can be produced. This means an enormous savings potential by eliminating additional machining steps and opens up new ways in product design. As a technology leader, DORST Technologies continuously embraces the challenge to repeatedly create ground-breaking innovations to improve quality, processes and products for increased customer satisfaction. For more information on this new product from Dorst, please visit there website www.dorst.de |
