In-process and ex-situ measurement techniques for the characterization of surface conditions during cryogenic hard turning of AISI 52100

Uebel, Julian; Ankener, Werner; Basten, Stephan; Smaga, Marek; Kirsch, Benjamin; Seewig, Jörg; Beck, Tilmann; Aurich, Jan C.

doi:10.1515/teme-2020-0053

Cited by 4 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With an incoherent light source, the spatial information is lost, i.e., only mean roughness information is acquired, but the on-machine integration and evaluation are more convenient [33]. In [34], the control target value surface topography is to be monitored in-process by an angle resolved scattered light sensor, which is not influenced by machine vibrations. This sensor is combined with a pneumatic sensor, which deduces occurring tool wear by the measured distance between the tool holder and the machined surface.…”

Section: Measurement Of Surface Layer Statesmentioning

confidence: 99%

The Present State of Surface Conditioning in Cutting and Grinding

Stampfer

González

Gerstenmeyer

et al. 2021

JMMP

View full text Add to dashboard Cite

All manufacturing processes have an impact on the surface layer state of a component, which in turn significantly determines the properties of parts in service. Although these effects should certainly be exploited, knowledge on the conditioning of the surfaces during the final cutting and abrasive process of metal components is still only extremely limited today. The key challenges in regard comprise the process-oriented acquisition of suitable measurement signals and their use in robust process control with regard to the surface layer conditions. By mastering these challenges, the present demands for sustainability in production on the one hand and the material requirements in terms of lightweight construction strength on the other hand can be successfully met. In this review article completely new surface conditioning approaches are presented, which originate from the Priority Program 2086 of the Deutsche Forschungsgemeinschaft (DFG).

show abstract

Section: Measurement Of Surface Layer Statesmentioning

confidence: 99%

The Present State of Surface Conditioning in Cutting and Grinding

Stampfer

González

Gerstenmeyer

et al. 2021

JMMP

View full text Add to dashboard Cite

show abstract

“…The use of micromagnetic NDT in manufacturing and quality control is well-established for the efficient assessment of specific material properties [1,2]. Micromagnetic techniques offer great potential for the characterization of mechanical and microstructural properties of ferromagnetic material states [3][4][5][6][7]. Furthermore, due to the non-destructive and, in many cases, contactless measuring technique, micromagnetic NDT offers excellent opportunities for in-process measurements for process monitoring during transient machining processes of ferromagnetic materials [8].…”

Section: Introductionmentioning

confidence: 99%

Micromagnetic and Microstructural Characterization of Ferromagnetic Steels in Different Heat Treatment Conditions

Ankener

Böttger

Smaga

et al. 2022

Sensors

Self Cite

View full text Add to dashboard Cite

The paper addresses the investigation of microstructures from AISI 52100 and AISI 4140 in hardened as well as in quenched and tempered conditions. The specimens are compared in terms of their magnetic hysteresis and their microstructural and mechanical properties. Material properties were determined by hardness, microhardness, and X-ray diffraction measurements. Two different approaches were used to characterize magnetic properties via a hysteresis frame device, aiming, on the one hand, to record the magnetic hysteresis with established proceedings by setting a constant magnetic flux and, on the other hand, by offsetting a constant field strength to facilitate reproducibility of the results with other micromagnetic measurement systems. Comparable differences in both the micromagnetic and the mechanical material properties could be determined and quantified for the specifically manufactured specimens. The sensitivity of the magnetic hysteresis and, determined from that, the relationship between magnetic flux and magnetic field strength were confirmed. It was shown that a consistent change in hysteresis shape from hardened to high temperature tempered material states develops and that this change allows the characterization of different materials without the need to adjust magnetization parameters. Repeatedly, an increase in remanence with decreasing hardness was found for both test approaches. Likewise, a decreasing coercivity and increasing maximum magnetic flux could be detected with decreasing retained austenite content. The investigated correlations should thus contribute to the calibration of comparable measurement systems through the holistic characterized specimens.

show abstract