Durch die Verwendung von Magnesium bei dieser Antennenschale für den Fahrzeuginnenraum konnte den Forderungen nach elektromagnetischer Abschirmung, Temperaturbeständigkeit und mechanischer Festigkeit Rechnung getragen werden.
Insbesondere die Möglichkeiten zur Funktionsintegration durch das Gießen sehr filigraner Strukturen und Funktionsbereiche in Magnesium sind bei diesem komplexen Bauteil mit dünner Wanddicke voll ausgeschöpft worden. Voraussetzung hierzu ist in jedem Falle eine sehr enge Zusammenarbeit zwischen Abnehmer und Gießer von Anfang des Entwicklungsprozesses an.
Werkstoff: Magnesium AZ91D
Teilegewicht: 193 g
C & C Bark can trace its origins back to 1924, when the engineer Karl Hopt founded a company bearing his own name to produce variable capacitors. Karl Hopt GmbH began manufacturing magnesium die cast parts in 1961, and in 1967 partnered with Frech to develop the world’s first hot-chamber die casting machine for magnesium.
C & C Bark GmbH was founded in 1986 to focus exclusively on the manufacture of magnesium die cast parts for a wide range of applications. Our passion and expertise enable us to master the entire production chain, from design through casting to machining and finishing. Our employees have an unparalleled knowledge of magnesium and its capabilities, with a deep understanding of how to produce quality parts for our customers.
Our customers, who include many of the leading names in their industries, do not only look to us for expertise, but they have also come to know us as a partner they can depend on. Our commitment to quality is reflected in every single part we produce. Today and in the future.
Die Casting of Magnesium Alloys
C&C Bark has gained a lot of experience in the die casting of magnesium alloys since more than 40 years. The specialization in the material Magnesium, our motivated and experienced staff, most modern machines as well as our excellent suppliers an outstanding quality standard at high flexibility and short reaction times could be achieved.
In order to keep to the most modern standards in magnesium technologies C&C Bark (founding member of EFM "European Research Association for Cast Magnesium" in Aalen, Germany) is integrated in different research projects. In addition we have development partnerships with manufacturers of machines, tools and machining equipment.
The Heart of our company - The Foundry
We have been casting high-quality Magnesium alloys since 1961, and continue to specialize exclusively in this material. The origin of our castings - the foundry - is equipped with experienced and well trained staff as well as a most modern machine park such as hot and cold chamber die casting machines with 40 t to 1600 t locking force. These machines allow us to choose the most proper type of machine for die cast parts with weights between 1 g and 5000 g.
The preferred alloy is the standard alloy Mg-AZ91 in High Purity Quality, in special cases Mg-AM60 is used. All alloys are supplied by certified manufacturers from the Western World. As our company is development partner of renowned machine manufacturers in the field of magnesium die casting, innovations and optimisations are continuously used and tested at our machines long before they are introduced into the official market.
From a raw die cast part to a magnesium component - Deburring
Transforming a raw die cast part into a precision component involves the deburring process, which we complete with the same passion and meticulous attention to detail as the design and casting phases.
Our deburring facilities use advanced technologies and machinery for trimming, vibratory finishing and shot-blasting, operated by highly trained staff firmly focused on providing customers with components of outstanding quality.
Part of our machinery:
several REIS presses
vibratory finishing machine