TU Darmstadt / ULB / TUprints

Experimental Analysis of Ductile Cutting Regime in Face Milling of Sintered Silicon Carbide

Groeb, Marvin ; Hagelüken, Lorenz ; Groeb, Johann ; Ensinger, Wolfgang (2022)
Experimental Analysis of Ductile Cutting Regime in Face Milling of Sintered Silicon Carbide.
In: Materials, 2022, 15 (7)
doi: 10.26083/tuprints-00021117
Article, Secondary publication, Publisher's Version

[img] Text
Copyright Information: CC BY 4.0 International - Creative Commons, Attribution.

Download (9MB)
Item Type: Article
Type of entry: Secondary publication
Title: Experimental Analysis of Ductile Cutting Regime in Face Milling of Sintered Silicon Carbide
Language: English
Date: 11 April 2022
Place of Publication: Darmstadt
Year of primary publication: 2022
Publisher: MDPI
Journal or Publication Title: Materials
Volume of the journal: 15
Issue Number: 7
Collation: 20 Seiten
DOI: 10.26083/tuprints-00021117
Corresponding Links:
Origin: Secondary publication DeepGreen

In this study, sintered silicon carbide is machined on a high-precision milling machine with a high-speed spindle, closed-loop linear drives and friction-free micro gap hydrostatics. A series of experiments was undertaken varying the relevant process parameters such as feedrate, cutting speed and chip thickness. For this, the milled surfaces are characterized in a process via an acoustic emission sensor. The milled surfaces were analyzed via confocal laser scanning microscopy and the ISO 25178 areal surface quality parameters such as Sa, Sq and Smr are determined. Moreover, scanning electron microscopy was used to qualitatively characterize the surfaces, but also to identify sub-surface damages such as grooves, breakouts and pitting. Raman laser spectroscopy is used to identify possible amorphization and changes to crystal structure. We used grazing incidence XRD to analyze the crystallographic structure and scanning acoustic microscopy to analyze sub-surface damages. A polycrystalline diamond tool was able to produce superior surfaces compared to diamond grinding with an areal surface roughness Sa of below 100 nm in a very competitive time frame. The finished surface exhibits a high gloss and reflectance. It can be seen that chip thickness and cutting speed have a major influence on the resulting surface quality. The undamaged surface in combination with a small median chip thickness is indicative of a ductile cutting regime.

Uncontrolled Keywords: ductile cutting regime, machining, silicon carbide, face milling, PCD tooling
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-211172
Classification DDC: 500 Science and mathematics > 540 Chemistry
600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 11 Department of Materials and Earth Sciences > Material Science
Date Deposited: 11 Apr 2022 11:32
Last Modified: 14 Nov 2023 19:04
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21117
PPN: 500749132
Actions (login required)
View Item View Item