ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
In the ultra-precision machining of KDP crystal, there are many factors affecting thesurface quality[1-3]. The experiments show that the rake angle and back angle of the tool havesignificant effects on machined surface roughness. Therefore, an efficient way to improve thesurface roughness is to select a proper negative rake angle. In this study, the ANSYS static analysismethod was employed to analyze the stress field distribution within the whole cutting region. Afinite element simulation model was set up to calculate the residual stresses variation with tool’sangles, which can be considered to select optimal rake and back angles in the ultra-precisionmachining of KDP crystal. Results show that the optimal tool rake angle and back angle are -49°and 7°, respectively. Finally, by using different tool angles to process KDP crystal and utilizingAFM to analyze the surface roughness, it can be found that the measurement results agree well withwhat are deduced from theoretical calculation
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.364-366.297.pdf
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