Combined inline roughness and oil film measurement

Unique combination of measuring systems improves proportion of „OK“ parts

Combined inline roughness and oil film measurement

The system combines the traversing sensors of Amepa’s surface roughness and oil film measurement

At Aluminium 2022, Amepa is showcasing a tribology measuring system that combines Amepa“s SRM and OFM technology to measure both the roughness and oil film thickness of aluminium and steel strips inline. These two parameters have a decisive influence on the forming process of blanks in press lines, but could not be recorded together until now.

The new, combined system measures both the roughness and oil film thickness of coils inline – for example, at the entry of laser blanking lines. The combined system makes it possible to specifically react to varying properties of incoming strips and optimize the forming process accordingly. In the event that the system detects irregularities, such as poor or missing oiling, the coil can be re-oiled in the respective sections. Likewise, the deep-drawing process can be specifically adjusted to the coil“s surface roughness.

Integrated into coil and blank tracking systems of press shops, the combined system can assign the two parameters „roughness“ and „oil film“ to the coil sections affected with an accuracy of a meter.

According to Martin Fieweger, Managing Director of Amepa, customers benefit from the combination of the two systems in multiple ways: „For the very first time, data from an inline measurement can be used to adjust the deep-drawing process for each individual blank precisely to the – varying – properties of the coil they are made of. As a result, blanks that had to be downgraded in the past may become „OK“ ones thanks to the data provided by our new system. Moreover, based on the data available from the inline coil measurements, operators can gain deeper insights into how the parameters „roughness“ and „oil film“ influence the forming process and use this knowledge to optimize their processes.“

The two systems are aligned to one another and adjusted by Amepa. They automatically recognize the surface condition and type of lubricant used – dry or fluid – during the measurement.

Amepa at the Aluminium 2022 trade fair

in Düsseldorf, from 27 to 29 September.

Hall 5, Stand 5H29


AMEPA GmbH has been developing and implementing innovative measuring solutions in close cooperation with the steel, aluminium, and automotive industries since 1984. The core products of the portfolio are electromagnetic and thermographic systems for slag detection, and inline non-contact roughness and oil film measurement. AMEPA systems installed worldwide ensure the highest quality standards along the entire process chain of metals production and processing, from the production of high-purity functional steels to metal forming tribology for rolling and pressing processes in automotive production.

More than 440 installations in 34 countries have made systems from AMEPA a worldwide standard for quality and engineering excellence „Made in Germany.“

With more than 67 employees at the Würselen headquarters, international branches in the USA and China, and a global sales and service network, AMEPA guarantees competent and comprehensive advice and fast service.

AMEPA Angewandte Messtechnik und Prozessautomatisierung GmbH
Jens Harre
Karl-Carstens-Straße 12
52146 Würselen|Germany
+49 2405 40808-0

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52068 Aachen | Germany
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