A review of machine-tool vibration and its influence upon surface generation in ultra-precision machining

Micro-cutting of single-crystal metal: Finite-element analysis of deformation and material removal

“…When cutting was performed along the 0° direction (i.e. [1][2][3][4][5][6][7][8][9][10] orientation), slip systems activated in the FCC crystallographic structure were symmetrical with respect to it. Therefore, in the FE simulation, the chip separated from the work-piece symmetrically.…”

“…A trend of product miniaturisation has led to a growing demand for high-precision microscale machining techniques for manufacture of micromechanical systems [1][2][3]. In contrast to conventional macro-scale machining, a process zone in micromachining is usually limited to only a few grains of a metallic work-piece material.…”

34CrNiMo6 Çeliğinin Frezelenmesinde Kesme Parametrelerinin Titreşim Ve Yüzey Pürüzlülüğüne Etkilerinin İncelenmesi

“…Uygun kesme parametrelerinin seçilmediği durumlarda oluşan titreşimler, tezgâha ve kesici takıma gelen yükü arttıracağı için elde edilen yüzeyin de daha pürüzlü olmasına sebeptir [17]. Dolayısıyla araştırmacılar pürüzlülüğün ölçülmesiyle optimize edebilecekleri kesme parametrelerini oluşan titreşimle beraber değerlendirdiklerinde daha verimli sonuçlara ulaşmışlardır [18][19][20]. Görüldüğü üzere, farklı malzemelere farklı kesme parametreleri kullanılarak talaş kaldırma işlemleri gerçekleştirilmiştir.…”

Influence of ultra-precision flycutting spindle error on surface frequency domain error formation

“…In some special application fields, such as large size KDP crystal machining, ultra-precision flycutting has more advantages than other ultra-precision machining methods, because KDP material is quite soft, brittle, thermally sensitive, and strongly anisotropic, and ultra-precision flycutting can better face these cutting difficulties [2,3]. In ultra-precision machining, many factors influence the surface generation and surface error, such as machine tool, cutting process, tool geometry, material property, vibration, and environmental condition [4][5][6].…”