- MAPAL Dr. Kress KG
- Obere Bahnstr. 13
- 73431 Aalen
- Andreas Enzenbach
- +49 (7361) 585-3683
World's first: Additively manufactured hydraulic chuck
During the production of the hybrid HTC with narrow contour, the functional area is applied to the conventionally manufactured tool body by SLM. Thanks to the additive manufacturing, the clamping range can be positioned very close to the chuck tip which would not have been possible with conventional manufacturing. This provides an optimum radial run-out of < 3 µm at the location bore and < 5 µm at 2.5 x diameter, as well as high shape accuracy with good vibration damping. The damping in the system reduces microstructure cracking at the cutting edge. That in turn ensures longer tool life and less strain on the machine spindle. Furthermore, the additive manufacturing eliminates the need for the soldered joint that has always been a limiting factor until now.
The HTC with narrow contour has all the benefits of the proven MAPAL HTC (HighTorque Chuck) technology, whereby the "T" stands not only for high torque transmission, but also for thermal stability. The wide operating temperature range up to 170 °C ensures additional process reliability. The balancing quality is G=2.5 at 25,000 revolutions per minute.
The new chuck offers significant benefits not only for mould making, but also for applications in the automotive and aerospace sector. Why? The HTC with narrow contour is suitable for all machining operations in contour-critical areas. It allows quick and simple clamping of the tool. That means: Neither training courses nor high retooling costs or expensive peripherals are required for implementation.
The HTC with narrow contour is available in the clamping diameters of 6, 8, 10 and 12 millimetres for HSK-A63 and SK-40. Intermediate sleeves enable additional diameter ranges to be covered. In addition, the chuck is optionally available with dynamically balanced HSK. That again is something new: For the first time is has become possible to dynamically balance components with HSK connection, because the mass imbalance that has been caused by the different depths of the key block slots until now has been eliminated in the optimised HSK.
MAPAL Dr. Kress KG
MAPAL Präzisionswerkzeuge Dr. Kress KG is one of the leading international suppliers of precision tools for the machining of practically all materials. The company founded in 1950 supplies leading customers from the automotive and aerospace industries and from machine and plant engineering. With its innovations the family-owned company sets trends and standards in production and machining technology. MAPAL sees itself as a technology partner, supporting its customers with the development of efficient and resource-conserving machining processes using individual tool concepts. The company is represented with production facilities, sales subsidiaries and representatives in 44 countries worldwide. In 2014 the MAPAL Group had 4,500 employees, generating sales of EUR 510 million.
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