Traditional approaches to understanding ultraprecision machining processes such as grinding, polishing, lapping, micromachining, machining, etc., have focused on developing analytical, semi-empirical and empirical models that seek to explain the output of processes based on many input variables. However, those models are not very well …
'Ultraprecision Machining' published in 'CIRP Encyclopedia of Production Engineering' The key for achieving such tight tolerances is the use of selected engineering materials for machine bases and structural elements with excellent mechanical and thermal stability, motors, and precision linear slides providing stick-slip and backlash-free …
A convex spherical blazed grating with a radius of curvature R = 41.104 mm, substrate diameter 14 mm, grating density 53.97 line/mm, and blaze angle of roughly 3.8° is turned by a four-axis ultra-precision machining system by adjustment of the cutting tool, workpiece material, and cutting parameters, as well as modification of the layouts of ...
Ultra-precision machining of difficult-to-cut materials, such as hardened steel [21,22,23,24], tungsten alloy ... The experimental results indicate that the grooves with ultra-precision micro/nano-textures can be machined successfully in ductile mode on tungsten carbide, and a defect-free smooth surface can be successfully obtained by EVC.
The micro/nano structured surface machining based on motion control of machine tool axis is the most direct and widely used machining method. It is mainly based on the relative motion between diamond tool and workpiece to realize the machining and manufacturing of ideal micro/nano structures. One of the most widely used …
Dear Colleagues, Ultra-precision machining is a multi-disciplinary research area that is an important branch of manufacturing technology. It targets achieving ultra-precision form or surface roughness accuracy, forming the backbone and support of today's innovative technology industries in aerospace, semiconductors, optics, …
In the aspect of the application of the high-performance cutting system in ultra-precision machining, some researchers focused on the degree of freedom (DOF) in flexure-hinge-based FTS, Li et al. [21] developed a 3-DOF piezoelectric FTS for microstructure machining with the stroke of 40 µm and natural frequency of 800 Hz. In …
Micro/nano structures have many functions and are widely used in engineering field. As an important machining method for micro/nano structures, ultra-precision machining has advantages in surface roughness, shape control accuracy, geometric consistency of micro/nano structures, and machining efficiency.
Dear Colleagues, Ultra-precision machining is a multi-disciplinary research area that is an important branch of manufacturing technology. It targets achieving ultra-precision form or surface roughness accuracy, forming the backbone and support of today's innovative technology industries in aerospace, semiconductors, optics, …
Ultra-precision machining has been well known as a very precise and effective way to prototype and fabricate different types of components with microstructures. In this paper, an ultra-precision micro-milling method has been presented to produce a micro-step pillar array as an embossing mold for semiconductor application. Theoretical …
Ultra-precision and micro-manufacturing play an important role in advanced manufacturing technology, and in recent decades, the application of ultra-precision cutting and micro-machining has been increasing and promoting the market economy. Ultra-precision processes allow for surface roughness down to the nanoscale …
Micro Laser Beam Machining (Micro-LBM): Tolerances vary based on the laser's power and precision, typically falling within ±0.005 mm to ±0.01 mm. Micro …
The micro-defects on KH 2 PO 4 (KDP) optic surfaces are mainly repaired by the micro-milling technique, while it is very easy to introduce brittle cracks on repaired surfaces, as KDP is soft and brittle. To …
The studies on single crystal diamond turning were first documented by Jesse Ramsden in 1779 [] in which a screw for separating engines made of hardened steel was cut with a diamond.Using this as a foundation, the ultra-precision machining (UPM) was initially developed in the 1960s to create super-polished surfaces with sub …
Ultra-precision machining technology has been widely used in the manufacture of many mission-critical components for various industrial areas, such as advanced optics, photonics aerospace, automotive, telecommunications, biomedical, energy and environmental, etc. Today, ultra-precision machining technology is …
Ultra precision and micro machining processes become more and more important. This can be led back to the development of functionalized surfaces and parts and the mass production of smaller ...
If a micro-machining process is set up for machining of large workpieces, this is attempted because extremely tight figure and roughness tolerances can be met. Depending on the accuracy achieved, …
Ultra-precision machining. 1. Introduction. A micro-structured functional surface is that a surface is characterized by micro-structures for a special function [ 1, 2 …
Ultra-precision machining is the efficient technique to produce highly precise surface with complex shapes and micro-features. Surface quality in ultra-precision machining is only assured by strictly following the optimized process conditions. This chapter covers the various stages of the ultra-precision diamond turning process …
Definition. Ultraprecision machining refers to the ultimate ability of a manufacturing process wherein processing of a material at its lowest scale that is, at the atomic scale, is achieved. It is known that the lattice distances between two atoms are of the order of 0.2–0.4 nm; therefore, the ultraprecision machining refers to processing or ...
Ultra Precision Micromachining Solutions. Our micromachining manufacturing services technology allows for enable the fabrication of precision machined parts and components too small for traditional …
Hoffmeister H, Wenda A. Novel grinding tools for machining precision micro parts of hard and brittle materials. In: Proceedings of the 15th Annual Meeting of the ASPE. 2000, 152–155 ... Kim J, Kim D S. Theoretical analysis of micro-cutting characteristics in ultra-precision machining. Journal of Materials Processing …
Precision milling of parts with tolerances under 5μm are produced daily – measured by the most modern measuring equipment from GOM. High speed custom micro machining with 50.000 rpm on the mandrels enables creation of mirror-like surfaces, even in very small holes. Small part machining of down to thickness of 0,1 mm thin-walled items.
Ultra-precision machining is promising to generate surfaces with sub-micrometric form accuracy and nanometric surface roughness, which are highly demanded in optical, biomedical, electronic and aerospace industries [1, 2].However, many external factors still cause surface deviations from the design, involving environmental factors, machine …
With the increasing demand for ultra-high-precision products and micro-products in fields such as aerospace, national defense, military, transportation, and people's livelihoods, it has become an important development trend in the field of machining to realize ultra-high-precision machining and miniaturization with a higher level and higher ...
For more than 30 years, Fraunhofer IPT has been researching the machining of components with diamond tools, especially ultra-precision milling, grinding and turning. Our manufacturing portfolio ranges from small to medium-sized optics and free-form surfaces to components with extreme geometric freedom and steep free-form details to …
Mechanical micro-machining has significant advantages in compassion with other machining techniques in terms of workpiece complexity, material diversity, energy consumption, and cost. The existing micro-spindles, as the key fundamental equipment, cannot simultaneously guarantee ultra-high rotational speed, high rotational …
Micro-machining has been widely used for manufacturing of micro molds for flat panel displays. Because the mold has a large area and heavy weight, the workpiece setup system with a high stiffness and ultraprecise positioning control is required to obtain a longterm manufacturing stability and precision. In this study, a novel ultra-precision …
CNC machine tools is known as the mother aircraft of manufacturing in high-precision industry, it is necessary to study the method of its precision guarantee.The technology of macro–micro composite CNC machine [] is a research hotspot in recent years.This kind of mechanical structure can effectively achieve ultra-precision under …
The increasing degree of geometrical complexity, requirement of high precision and the evolution of the materials used for machined workpieces have led to many research challenges in different fields, including ultra-precision machining technologies, novel machining processes, cutting mechanics, surface generation …
Makino provides ultra-precision micromachining technologies for the most challenging parts and features. At Makino, we're machining parts with micro scale features to …
Ultra-precision machining technology has been widely used in the manufacture of many mission-critical components for various industrial areas, such as …
'Ultraprecision Machining' published in 'CIRP Encyclopedia of Production Engineering' The key for achieving such tight tolerances is the use of selected engineering materials for machine bases and structural elements with excellent mechanical and thermal stability, motors, and precision linear slides providing slipstick and backlash-free …
