TY - CONF A1 - Boehm, Rainer A1 - Heckel, Thomas A1 - Brackrock, Daniel A1 - Spruch, W. A1 - Beggerow, T. A2 - Bond, L. J. A2 - Holland, S. A2 - Laflamme, S. T1 - High Speed Hollow Axle Inspection with a New Designed Cone Type Phased Array N2 - Hollow axle inspection can be performed without demounting the axles and without dismantling the wheels and the brake discs by using the drilling for the scan. To increase inspection reliability and inspection speed, the application of phased array systems instead of conventional probes is a good choice. For solid shaft inspection phased array setups became standard in the recent years. Nevertheless, for hollow axle inspection typically a number of conventional probes rotating through the axles drilling are applied. The new approach uses an electronically steered rotating sound field from a phased array for the circumferential scan. This is realized by a cone shaped phased array which operates in immersion technique. That allows a significant increase in inspection speed and a reduction of the mechanical effort of the inspection system. The inspection can be carried out by a linear movement of the probe setup along the axles drilling. Applying additional focal laws allows exact inclination and focusing of the sound beam in the plane vertical to the specimen axis to concentrate the sound in the zones close to the external surface. An additional focus in the plane of incidence increases overall resolution and sensitivity. The cone type phased array probe has been optimized to detect transversal flaws in and close to the outer surface of the hollow axle with orientation in the radial-radial plane. The prototype probe system, sound field simulations and measurement results are presented. PB - American Institute of Physics CY - Maryland, Vereinigte Staaten T2 - 45th Annual Review of Progress in Quantitative Nondestructive Evaluation CY - Portland, Oregon, USA DA - 13.07.2019 KW - Cone Shaped Phased Array KW - Hollow Axle Inspection KW - High Speed Testing PY - 2019 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/48936 AN - OPUS4-48936 SN - 978-0-7354-1832-5 SN - 0094-243X VL - 2102 IS - 1 SP - UNSP 100006-1 EP - UNSP 100006-11 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany