Diamond milling of nitrided steels for optical mold making

Osmer, J.; Gläbe, Ralf; Riemer, O.; Brinksmeier, E.; Bütepage, S.; Hoffmann, F.

doi:10.1116/1.3049512

Cited by 8 publications

(3 citation statements)

References 8 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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“…Furthermore, grinding, polishing, etc. applied in ultraprecision machining of ferrous metal have low machining efficiency which is difficult to meet the current manufacturing needs [ 1 , 2 ]. Therefore, researches related to STDP ferrous metal is necessary.…”

Section: Introductionmentioning

confidence: 99%

Influence of Lubricant Environment on Machined Surface Quality in Single-Point Diamond Turning of Ferrous Metal

2021

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In the field of single-point diamond turning (SPDT), machining ferrous metal is an important research topic with promising application. For SPDT of ferrous metal, the influence of lubricant on the workpiece surface morphology remains to be studied. In this study, three lubricant machining environments were selected to carry out specific control experiments. The machined surface morphology and cutting force in different lubricant machining environments were analyzed. The experiment results showed that the lubricant environment will have significant impacts on the quality of the machined surface morphology of ferrous metal. In the environment of minimum quantity lubrication machining (MQLM-oil), better machined surface quality can be obtained than that in ordinary dry machining (ODM) and high-pressure gas machining (HGM). Furthermore, the cutting force captured in the ODM and HGM environment increased with the increase of the cutting depth, while the cutting force in the MQLM-oil environment remained almost unchanged. That indicates MQLM-oil can suppress the formation of hard particles to improve the machining quality.

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“…in injection moulding of plastics. A possible solution is diamond cutting of nitrocarburized steel alloys, which can be machined without significant tool wear which usually occurs when un-treated steel alloys are machined with single crystal diamond tools [2,3]. Trough the nitrocarburizing process the iron atoms in the steel are bonded to nitrogen atoms.…”

Section: Introduction and State Of The Artmentioning

confidence: 99%

Ultra Precision Machining of Non-Ferrous Metals and Nitrocarburized Tool Steel

Osmer

Meier

Gläbe

et al. 2010

KEM

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This paper presents results for the machining of materials typically applied in ultra precision machining in comparison to a nitrocarburized tool steel. Analyzing and evaluating the machining results regarding surface integrity lead to recommendations for the ultra precision machining of this new mold material. The influence of feed, depth of cut and cutting speed on surface quality, resulting cutting forces and tool wear have been investigated. The results show that the decisive factor for the ultra precision machining of nitrocarburized tool steel are the significantly higher cutting forces. In some cases the high cutting forces lead to vibrations during the turning process deteriorating the surface integrity. Therefore, tool nose radius and depth of cut have to be reduced to minimize the cutting forces and avoid the vibrations.

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Diamond milling of nitrided steels for optical mold making

Cited by 8 publications

References 8 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

Influence of Lubricant Environment on Machined Surface Quality in Single-Point Diamond Turning of Ferrous Metal

Ultra Precision Machining of Non-Ferrous Metals and Nitrocarburized Tool Steel

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