Analysis of the Wear Behaviour of Diamond Impregnated Tools Used for the Core Drilling of Concrete with Statistical Lifetime Prediction

Kansteiner, M.1, a; Biermann, D.1, b; Malevich, N.2, c; Horn, M.2, d; Müller, C.2, e; Ferreira, M.3, f; Tillmann, W.3, g

1)
Institut für Spanende Fertigung, Technische Universität Dortmund, Baroper Str. 303, 44227 Dortmund
2)
Lehrstuhl Statistik mit Anwendungen im Bereich der Ingenieurwissenschaften, Fakultät Statistik, TU Dortmund, 44221 Dortmund
3)
Lehrstuhl für Werkstofftechnologie LWT, Technische Universität Dortmund, Leonhard-Euler-Str. 2, 44227 Dortmund

a) kansteiner@isf.de; b) biermann@isf.de; c) nadja.malevich@tu-dortmund.de; d) mhorn@statistik.tu-dortmund.de; e) cmueller@statistik.tu-dortmund.de; f) manuel.ferreira@udo.edu; g) wolfgang.tillmann@udo.edu

Kurzfassung

At the EUROPM 2017 a first approach for the analysis of the wear in core drilling processes of concrete based on statistical features was presented. Due to promising results of this first approach, and to increase the data basis, further experiments with the same tools were conducted. Beside a conventional concrete (C20/25), a second concrete (C100/115), with different composition and properties, was machined. Like before, the presented analysis is based on process force measurements and a microscopic analysis of the segments to detect diamond breakouts. Statistical methods were used to detect such certain events. Additionally, a lifetime estimation for single diamonds is carried out, which allows to forecast the breakout of single diamonds. Hence, the time when half or all of the diamonds visible in the beginning are broken out can be forecast.

Veröffentlichung

In: EURO PM 2018, International Powder Metallurgy Congress & Exhibition, Proceedings, 14.10.-18.10. 2018, Bilbao, Spain, (2018)