55. Metallographie-Tagung 2021 - Materialographie
Vortrag
29.09.2021
A metallographic preparation method for three-dimensional microstructural characterization of machining chips
AF

Alexander Frank

Universität des Saarlandes

Frank, A. (V)¹; Fang, S.¹
¹Universität des Saarlandes
Vorschau
19 Min. Untertitel (CC)

Chip formation is one important indicator of machining processes. Statistical characterization of machining chips geometric features can offer crucial information for evaluating the stability and productivity of the machining processes. In the abrasive machining processes, an abundance of minuscule chips is produced by the vast number of abrasives exposed on the cutting surfaces. Geometric features of abrasives, such as shape, dimension, and distribution, may be hierarchically passed to the chips. Similar to those of abrasives, geometric features of the chips may also vary to a certain extent and conform to some statistical distribution. To verify these characteristics, a metallographic preparation method in connection with chips formed in abrasive machining processes is proposed in this study. Challenges in collecting and segmenting chips have been successfully overcome through several steps using ultrasonic bath cleaning and powder cold embedding methods. Finally, a considerable amount of chips was formed and embedded in a resin mold uniformly, ready for the characterization by microscopes.

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