ABOUT US PRODUCTS SERVICES NEWS CONTACT CAREER DOWNLOADS IMPRINT ProductsQuality InspectionAutomatic Billet Surface Inspection Automatic Billet Surface Inspection To date visual quality control of billet surface is usually done by operators. Hertwich has developed a billet surface inspection using 3D camera technology in order to reliably detect surface defects on aluminium billets caused by the casting process. Multiple 3D scanners are mounted on a mobile support. During the measurement the support is horizontally moving along the rotating billet, ensuring that the billet surface is scanned along helical (screw) lines. A 3D range image and a 2D grayscale image are recorded by the scanners. Combined 3D and 2D data is used to detect billet surface defects. Additionally the 3D data is used to analyse the billet straightness. Scan time depends on number of scanners. Functional principle automatic billet surface inspection Billet surface with casting-caused defects Recorded 3D image of same billet surface Contact Follow us © 2021 HERTWICH Engineering GmbH | SMS group | Data Protection Notice | Imprint

ABOUT US PRODUCTS SERVICES NEWS CONTACT CAREER DOWNLOADS IMPRINT ProductsHomogenizing Batch or Continuous Homogenizing Both concepts have their merits, and both are well suited, however for different applications. For mainstream AA6xxx series alloys the Continuous homogenizing concept is the first choice. The majority of these billets are homogenized in one of the 125 continuous furnaces manufactured by Hertwich. All Hertwich continuous homogenizing plants are configured to meet individual requirements of clients, in terms of throughput, floor are and technical features. Batch homogenizing is still the best suited technology for various alloys which require long holding times, e.g. 6 - 12 hours and for large-only diameter production, as well as for frequent temperature changes or intermittent production. Hertwich has in recent years supplied several batch homogenizing plants build upon latest state-of-the-art technology, which is instrumental for outstanding metallurgical aspects and productivity. At many prominent aluminium producers, a combination of continuous and batch homogenizing systems is a common sight for ultimate flexibility. Operating labour for a combined plant is typically limited to data storage on log entry, quality control at visual / UT inspection station and billet saw. Plant layout batch & continuous homogenizing plant Contact Follow us © 2021 HERTWICH Engineering GmbH | SMS group | Data Protection Notice | Imprint