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Article
A comparative investigation on hybrid EDM for drilling small deep holes
For the use of electrical discharge machining (EDM) to drill small, deep holes, many studies have shown that tool electrode vibration and rotation and pump forced flushing can improve machining efficiency or q...
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Article
Constructing smooth tool orientation field based on radial basis function for 5-axis machining
In order to improve the surface quality and dynamics for 5-axis finish machining, new algorithms to construct smooth tool orientation field function are proposed in this paper. Given several surface points and...
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Article
Kinematic view of the cutting mechanism of rotary ultrasonic machining by using spiral cutting tools
Compared with the conventional machining (CM), rotary ultrasonic machining (RUM) is generally believed to have many better cutting features, such as low cutting force, high material removal rate, and long tool...
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Article
System design of Maxwell force driving fast tool servos based on model analysis
A prototype of the Maxwell force driving fast tool servo (M-FTS) is designed and developed. The M-FTS is capable of accurately translating the cutting tool on a diamond turning machine. The FTS utilizes a flex...
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Article
Review of diamond-cutting ferrous metals
Machining of ferrous metals using diamond tools is one of the most important areas in ultra-precision machining as it is not possible to achieve a nanometric surface if one simply uses diamond tools to do the ...
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Article
Coordinate transformation machining of off-axis aspheric mirrors
Off-axis aspheric mirrors are kernel components widely applied in various fields. The off-axis aspheric mirrors with large ratio of sag height to diameter are increasingly employed in many cases for smaller sy...
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Article
Study on critical rake angle in nanometric cutting
Molecular dynamics (MD) simulations of nanometric-cutting copper are conducted to study the critical rake angle during the cutting process. A new approach based on the maximum displacement of atoms in cutting ...
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Article
Molecular dynamics simulations of nanoindentation of monocrystalline germanium
Three-dimensional molecular dynamics simulations using the Tersoff potential are conducted to investigate the nanoindentation process of monocrystalline germanium (Ge). It is found that a phase transformation ...
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Article
Accurate spiral tool path generation of ultraprecision three-axis turning for non-zero rake angle using symbolic computation
An accurate spiral tool path generation method of ultraprecision three-axis turning free form surface is proposed based on symbolic computation in this paper. Many analytic optical free form surfaces often nee...
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Article
Ultra-precision machining of reflector array for laser diode beam sha**
Ultra-precision machining is an effective approach to achieve high dimension accuracy and surface finish required in optical and laser components. An extensive study using a two-axis diamond turning machine is...
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Article
An experimental study of optical glass machining
Owing to brittleness and hardness, optical glass is one of the materials that is most difficult to cut. Nevertheless, as the threshold value of the undeformed chip thickness is reached, brittle materials under...
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Article
An experimental study of edge radius effect on cutting single crystal silicon
According to the hypothesis of ductile machining, brittle materials undergo a transition from brittle to ductile mode once a critical undeformed chip thickness is reached. Below this threshold, the energy requ...
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Article
Micro-machining of optical glasses — A review of diamond-cutting glasses
In order to diamond-turn optical glasses to a nanometric surface finish, it is critical to determine the transition point from brittle mode to ductile mode. This paper presents various experimental techniques ...
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Article
Diamond Turning of Soft Semiconductors to Obtain Nanometric Mirror Surfaces
