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discharge machining; electrical conductivity; micro-hole shape 1 Introduction Advanced bulk materials with unique metallurgical properties, such as titanium alloys, ceramics, stainless steels, and other...Trans. Nonferrous Met. Soc. China 22(2012) s781-s786 Material properties and machining performance of hybrid Ti2AlN bulk material for micro electrical discharge machining Eui-Seong CHOI 1, Jinwoo......
Comparative study on discharge conditions in micro-hole electrical discharge machining of tungsten carbide (WC-Co) material Hyun-Seok TAK1, Chang-Seung HA2, Dong-Hyun KIM2, Ho-Jun LEE2... parameter in EDM. This paper describes the characteristics of the discharge conditions for micro-hole EDM of tungsten carbide with a WC grain size of 0.5 μm and Co content of 12%. The EDM process......
Trans. Nonferrous Met. Soc. China 22(2012) s801-s807 Surface effects of hybrid vibration-assisted femtosecond laser system for micro-hole drilling of copper substrate Jung-Kyu PARK1, 2, Ji-Woon YOON1... on the reduction of burrs at the entrance of machined hole, improvement of the machined wall surface in micro/nano machining, and increasing the aspect ratio for machined metal are demonstrated. Compared......
-electrical discharge machining; micro-hole; electrical conductivity 1 Introduction Alumina is one of the most popular ceramic materials due to its exceptional properties in hardness, strength, wear...) was larger than the hole in Fig.3(a) by approximately 100 μm-diameter due to the corner wear of the electrode in addition to linear wear. The micro- holes machined on 5% CNTs composite have good......
electron microscopy analysis showed that the surface morphology changed, the micro-hole size increased, and the surface became smoother and more uniform after calcination. The single-point total adsorption......
)Abstract:Stainless die with micro-groove and micro-hole have been designed and manufactured, which has been used to study superplastic microforming of 2091Al-Li alloy by means of superplastic forming. Micro-extrusion test shows that the selected material has good microformability which is evaluated by the specially developed method. Effects of pressure on forming have been analysed. At 510......
Ni Co P Al 2O 3 subsequently on Fe substrate were presented. After Ni Co P Al 2O 3 coatings immersed in 5 mol/L NaOH solution, a new micro hole and active coating was formed. Deposition of the active......
, soft and fibrous materials. It offers high energy density, the absence of a heat affected zone(HAZ), high performance, and an environment friendly process. In spite of these advantages, micro-hole... molds with the diameter of 700 μm and depth of 900 μm were successfully manufactured. Key words: rapid manufacturing; abrasives water jet (AWJ); silicon carbide (SiC); molds; micro-sized hole  ......
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. There are many various sizes of round or elliptic dimple on the micro-fracture, which is the basic character of micro-fracture of the assemble micro-hole. The assemble process of the micro-hole fracture contains micro-hole formation, growing up, aggregation even rupture. The formation of micro-hole is due to the second-phase (or impurity) fragmentation, or due to the second-phase (or impurity) disengagement......