Details

Autor(en) / Beteiligte

• Kaynak, Y.
• Karaca, H.E.
• Noebe, R.D.
• Jawahir, I.S.

Titel

Tool-wear analysis in cryogenic machining of NiTi shape memory alloys: A comparison of tool-wear performance with dry and MQL machining

Ist Teil von

• Wear, 2013-08, Vol.306 (1-2), p.51-63

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Extremely high tool-wear rate in machining of NiTi shape memory alloys (SMAs) is one of the major reasons for limiting the use of conventional machining processes on NiTi. The present study begins to address this issue by examining the effects of cryogenic cooling on tool-wear rate and progressive tool-wear by comparing the new findings from cryogenic machining with results obtained from minimum quantity lubrication (MQL) and dry machining conditions. Flank wear at the nose region, notch wear at the depth of cut boundary, and resulting machining performance criteria such as force components and surface quality of machined samples were studied. The findings from this research demonstrate that cryogenic cooling has a profound effect on controlling tool-wear rate and that the progressive tool-wear in machining of NiTi shape memory alloys can be significantly reduced by cryogenic machining. •Cryogenic machining-induced progressive tool-wear was studied.•Cryogenic machining improves tool performance substantially.•Cryogenic machining reduces the tool—chip contact length and force components.•NiTi alloy was in martensite phase during cryogenic machining.•Active phase of the work material affects machining performance.