Manufacturing technologies toward extreme precision

Abstract

Precision is one of the most important aspects of manufacturing. High precision creates high quality, high performance, exchangeability, reliability, and added value for industrial products. Over the past decades, remarkable advances have been achieved in the area of high-precision manufacturing technologies, where the form accuracy approaches the nanometer level and surface roughness the atomic level. These extremely high precision manufacturing technologies enable the development of high-performance optical elements, semiconductor substrates, biomedical parts, and so on, thereby enhancing the ability of human beings to explore the macro- and microscopic mysteries and potentialities of the natural world. In this paper, state-of-the-art high-precision material removal manufacturing technologies, especially ultraprecision cutting, grinding, deterministic form correction polishing, and supersmooth polishing, are reviewed and compared with insights into their principles, methodologies, and applications. The key issues in extreme precision manufacturing that should be considered for future R&D are discussed.

Additive Nanomanufacturing of Multifunctional Materials and Patterned Structures: A Novel Laser‐Based Dry Printing Process

“…This has led to the emergence of laser‐based additive nanomanufacturing (ANM) as a promising approach that could enable the synthesis and patterning of a variety of materials with micro/nanoscale resolutions. [ 47–55 ]…”

“…This has led to the emergence of laser-based additive nanomanufacturing (ANM) as a promising approach that could enable the synthesis and patterning of a variety of materials with micro/nanoscale resolutions. [47][48][49][50][51][52][53][54][55] Here, for the first time, we successfully introduced a single step ANM approach that enables the dry printing of a variety of multifunctional materials such as TiO 2 , BTO, and ITO on different substrates using a laser source. Our novel printing method is based on the in situ and on-demand generation of metastable nanoparticles via the nonequilibrium pulsed laser ablation process that can be laser sintered/crystallized in real-time to form desired patterns and devices.…”

Fundamental Investigation of Diamond Cutting of Micro V-Shaped Grooves on a Polycrystalline Soft-Brittle Material

“…In recent years, the requirement for the performance of optical components is becoming higher and higher [4]. Fabrication of micro-structure on material surface attracted considerable attention because it can offer unique functions for optical components, such as enhancement of sensitivity [5], increased field of view [6], and miniaturisation of components [7].…”

A simplified FEM analysis on the static performance of aerostatic journal bearings with orifice restrictor

“…With the benefits of high running precision and low friction, aerostatic support technologies play a major role in ultra-precision machine tools and measurement equipment. 1 According to different throttling principles, restrictors used in aerostatic bearings can be divided into different types, such as orifice, slot, groove, porous, etc. Due to the advantages of technology maturity and high manufacturing precision, orifice is extensively applied in ultra-precision machine tools and measurement equipment.…”