Surface Integrity Demands of High Precision Optical Molds and Realization by a New Process Chain

Brinksmeier, E.; Glaebe, R.; Osmer, J.

doi:10.1016/j.proeng.2011.11.077

Cited by 17 publications

(6 citation statements)

References 6 publications

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“…The principle step of the nitriding process is that a chemical reaction generates a layer of nitrogen compound on the top surface of the workpiece. The thickness of the modification layer is controlled by heat treatment parameters, including temperature and processing time, as shown in figure 28 [95][96][97]. During the cutting process, the depth of the cut is precisely controlled guaranteeing that it is less than the thickness of the compound layer.…”

Section: Surface Nitridationmentioning

confidence: 99%

A critical review on the chemical wear and wear suppression of diamond tools in diamond cutting of ferrous metals

Guo

Zhang

Pan

et al. 2020

Int. J. Extrem. Manuf.

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Diamond tools play a critical role in ultra-precision machining due to their excellent physical and mechanical material properties, such as that cutting edge can be sharpened to nanoscale accuracy. However, abrasive chemical reactions between diamond and non-diamond-machinable metal elements, including Fe, Cr, Ti, Ni, etc, can cause excessive tool wear in diamond cutting of such metals and most of their alloys. This paper reviews the latest achievements in the chemical wear and wear suppression methods for diamond tools in cutting of ferrous metals. The focus will be on the wear mechanism of diamond tools, and the typical wear reduction methods for diamond cutting of ferrous metals, including ultrasonic vibration cutting, cryogenic cutting, surface nitridation and plasma assisted cutting, etc. Relevant commercially available devices are introduced as well. Furthermore, future research trends in diamond tool wear suppression are discussed and examined.

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Section: Surface Nitridationmentioning

confidence: 99%

A critical review on the chemical wear and wear suppression of diamond tools in diamond cutting of ferrous metals

Guo

Zhang

Pan

et al. 2020

Int. J. Extrem. Manuf.

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show abstract

“…While the ceramic material like tungsten carbide is initially used for making these molds, harder tools like single crystal diamond are used to shape the ceramic materials. In recent times, silicon carbide ceramic is used for making the ceramic mold instead of tungsten carbide due to the high hardness [6]. The single crystal diamond tool is not suitable to machine this type of SiC ceramic mold because of the increase in the tool wear.…”

Section: Significance Of Diamond As a Cutting Toolmentioning

confidence: 99%

Significance of Diamond as a Cutting Tool in Ultra-Precision Machining Process

Anand¹

2020

Some Aspects of Diamonds in Scientific Research and High Technology

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This chapter focuses on the purpose of using diamond as a cutting tool in various ultra-precision machining applications. The complicated structures such as resin and ceramic mold used for making optical lenses are machined by the diamond tool to improve the precision of the finished product. It is difficult to machine hard and brittle materials such as glasses, ceramics, and composites with the assistance of diamond tool due to the complexity in the aspheric surfaces. Moreover, the tool wear is a major problem in machining these hard materials to a fine dimensional accuracy and tolerances. The microscopic defect forms at the cutting edge lead to the damage of the surface finish of the workpiece material. Therefore, the discussions are associated with the achievement of machining hard materials using a diamond tool in ultra-precision applications.

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“…Arnold et al [219] machined nickel phosphorus alloy by diamond tool and observed that tool wear was decreased with an increase in phosphorus content. After that, Brinksmeier et al [220] modified the steel molds using plasma nitridation to reduce the wear of diamond tool in cutting process. For brittle materials, such as the machining of single-crystal silicon, Fang et al [211] proposed a novel method which is the ion implantation surface modification method (NiIM), to enhance the machining efficiency, improve the surface quality and prolong the tool life in nano-cutting.…”

Section: Influence Of Brittle Materialsmentioning

confidence: 99%

Recent Advances in Micro/Nano-cutting: Effect of Tool Edge and Material Properties

Fang

2018

Nanomanuf Metrol

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Micro-and nano-machining technology has been applied in industry to generate high-precision parts with micro/nanometric accuracy or feature size in the recent decades. Cutting is one of the most powerful manufacturing processes, and the material removal mechanism is urgently demanded by the industry to understand and improve the micro/nano-machining process efficiently at a low cost. This paper presents the recent advances in cutting mechanism and its applicability for predicting the surface generation and chip formation, especially when material is removed in micro-and nanoscale. In addition to the industry-concerned performance parameters, fundamental physical parameters such as stresses, strains, temperatures, phase transformation, minimum uncut chip thickness and size effects are discussed in this paper for the indepth understanding of the micro/nano-cutting process.

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Surface Integrity Demands of High Precision Optical Molds and Realization by a New Process Chain

Cited by 17 publications

References 6 publications

A critical review on the chemical wear and wear suppression of diamond tools in diamond cutting of ferrous metals

A critical review on the chemical wear and wear suppression of diamond tools in diamond cutting of ferrous metals

Significance of Diamond as a Cutting Tool in Ultra-Precision Machining Process

Recent Advances in Micro/Nano-cutting: Effect of Tool Edge and Material Properties

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