Did You Know That DutchAero Uses HEIDENHAIN Products in Measuring and Quality of Aircraft Parts?

Typical DutchAero part: turbine wheel wheel for the nozzle of a jet engine

The Dutch enterprise DutchAero has been a renowned manufacturer of complex parts for the aircraft industry for 50 years. With support from the parent company KMWE, the production engineers developed a new measuring device for quality assurance that not only fulfills present tasks but is also equipped for the future. The core elements are 17 HEIDENHAIN-ACANTO touch probes and the modular MSE 1000 subsequent electronics.

After 20 years of accurate and reliable service at DutchAero it was time to replace the old measuring device and go new ways. “Failure of the measuring device would have seriously endangered our production,” explains Ben Dekkers, production engineer in the sheet metal processing shop at DutchAero. “Since there are hardly any more spare parts for the old devices and associated computers, we wanted to forestall this worst case at all costs.” Ben Dekkers found support from colleagues in the parent company KMWE. With their collaboration he launched the demanding project and developed a new measuring device that will again accurately and reliably monitor the quality of manufactured aircraft parts for many years to come.

High demands: accurate and future-proof, together with automatic data acquisition

Accurately measured: one of the two new measuring devices with HEIDENHAIN-ACANTO touch probes at DutchAero

Ben Dekkers summarized the high demands plainly and simply: “The new measuring device should have at least the performance of its predecessor and also be equipped for new tasks. Apart from that, we wanted automatic acquisition of the measured values of the products to be inspected.” Extensive data acquisition is necessary to be able to monitor the measured quality. The colleagues at KMWE were responsible for this special task and developed and programmed the corresponding software.

The new measuring device, developed and manufactured in-house, essentially consists of 17 touch probes of the HEIDENHAIN-ACANTO series and modular MSE 1000 subsequent electronics. Ben Dekkers explains the setup: “The ACANTO touch probes measure two different high-tech aircraft parts manufactured in series by DutchAero for the no of a jet engine. The MSE 1000 acquires the measured values, produces a complete electronic report and provides easy process monitoring.” At present there are still nine touch probes responsible for one part and the other eight for the other part. In future, however, all 17 HEIDENHAIN-ACANTO touch probes are to be used simultaneously.

Everyone party to the project is very pleased with the result of their combined efforts. Ben Dekkers: “The touch probes in our measuring device work with an accuracy of ±2 µm. We do not need such a high level of accuracy yet, but it gives us a margin for the future.” The measuring device is already being used in production. In parallel, DutchAero is testing the repeatability and reproducibility of the complete setup—a very complicated procedure with extensive test series.

HEIDENHAIN-ACANTO and MSE 1000: a reliable combination

Data acquisition station for the 17 touch probes: the MSE 1000 subsequent electronics acquires the measured values, records them in full and monitors the processes.

Measuring tasks as required by DutchAero demand special capabilities from measuring devices. Incorrect measurements must be avoided while evaluable additional data need to be available at every machining step. HEIDENHAIN-ACANTO touch probes ensure fast, reliable and accurate measurements. They measure without requiring a reference run for every request for an absolute position value. This rules out any measuring errors from excessive plunger velocity from bouncing or strong vibrations such as can occur with incremental encoders during very dynamic measuring tasks, e.g. on test stands.

Multipoint measuring stations are becoming ever more important in the field of industrial measuring technology as with DutchAero. In