Factors affecting chemical wear during machining

Hitchiner, Michael P.; Wilks, J.

doi:10.1016/0043-1648(84)90178-9

Cited by 36 publications

(9 citation statements)

References 13 publications

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“…Diamond is the hardest material and electroless-nickel is chemically inert, the inertness arises from the absence of geometric defects, as has been suggested to explain the high resistance which some materials exhibit in amorphous state [5], so possibility of any wear is very low. However, some wear had appeared at rake face and flank face and spread to some extent with a sequence of repeated cutting, for total cutting distance of 202km.…”

Section: Cutting Tool Wear and Cutting Distancementioning

confidence: 99%

Cutting performance of diamond tools during ultra-precision turning of electroless-nickel plated die materials

Pramanik

Neo

Rahman

et al. 2003

Journal of Materials Processing Technology

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This study is an attempt (a) to observe the wear characteristic of diamond tool with 200 km cutting distance and to study the effects of wear on the surface roughness and cutting forces and (b) to optimize various cutting parameters such as depth of cut, feed rate, spindle speed and phosphorus content. The experimental results showed that tool wear was not so significant although some defects on rake face were observed after cutting 15.6km. Further cutting showed that the surface roughness increases with cutting distance, and that the cutting forces were larger than thrust force at the beginning of cutting, but after cutting 130km thrust force became larger and increased rapidly. It was also observed that forces increase with the increase of depth of cut, spindle speed and feed rate, and decrease with the increase of phosphorus content of the plating. Depth of cut has no significant effect on surface roughness, while it increases with increase of feed rate and decreases with the increase of percentage of phosphorus content in the workpieces. In case of spindle speed, surface roughness decreases with the increase of spindle speed up to a certain value and then starts to increase with the increase of spindle speed.

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Section: Cutting Tool Wear and Cutting Distancementioning

confidence: 99%

Cutting performance of diamond tools during ultra-precision turning of electroless-nickel plated die materials

Pramanik

Neo

Rahman

et al. 2003

Journal of Materials Processing Technology

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“…In order to extend the PGM to creating microlens array and microstructures on the ChG surface, the mold should be machined with high accuracy and efficiency. Electroless nickel phosphorus (Ni-P) has emerged as an outstanding hard coating material because of its great hardness, outstanding corrosion resistance, and antiwear property [ 59 , 60 , 61 ]. Therefore, Ni-P plating has been used as mold to fabricate microlens array and microstructures for PGM [ 62 , 63 ].…”

Section: Molding Process Of Chg For Freeform Opticsmentioning

confidence: 99%

A Review of the Precision Glass Molding of Chalcogenide Glass (ChG) for Infrared Optics

et al. 2018

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Chalcogenide glass (ChG) is increasingly demanded in infrared optical systems owing to its excellent infrared optical properties. ChG infrared optics including ChG aspherical and freeform optics are mainly fabricated using the single point diamond turning (SPDT) technique, which is characterized by high cost and low efficiency. This paper presents an overview of the ChG infrared optics fabrication technique through precision glass molding (PGM). It introduces the thermo-mechanical properties of ChG and models the elastic-viscoplasticity constitutive of ChG. The forming accuracy and surface defects of the formed ChG are discussed, and the countermeasures to improve the optics quality are also reviewed. Moreover, the latest advancements in ChG precision molding are detailed, including the aspherical lens molding process, the ChG freeform optics molding process, and some new improvements in PGM.

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“…Sikdar studied the effect of cutting force on tool wear [10]. The tool wear mechanisms in diamond cutting of various materials, such as silicon, optical glass, aluminium, and ferrous metal, have also been discussed [11][12][13][14][15][16]. These works have made great contributions to a good understanding of diamond tool wear.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the effects of feed rate and tool geometries on tool wear in diamond cutting of sinusoidal microstructured surfaces

Zhou

Zhang

Huang

et al. 2011

Proceedings of the Institution of Mechanical Engineers, Part B:

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Tool wear in diamond cutting of sinusoidal microstructured surfaces with a fast tool servo (FTS) may be quite different from that in the conventional diamond turning process, as the depth of cut changes periodically along the contour of the cutting surface and diamond tools with a sharp point tip are used. According to a theoretical analysis of the machining of sinusoidal surfaces, feed rate is a key cutting parameter affecting tool wear. In the current paper, a series of controlled cutting tests of LY12 aluminium alloy with different feed rates was executed on a two-axis bench-type ultra-precision turning machine equipped with an FTS device. The machined surface quality and dynamic cutting forces were measured and analysed. Tool wear patterns were investigated for various feed rates. It is essential to discuss the cutting stress borne by the diamond tool in the cutting of sinusoidal surfaces, since transformation of diamond to graphite induced by high pressure has been proved in previous works. The maximum normal stress acting on the rake face was deduced from measured dynamic cutting forces. Micro-Raman spectroscopy was adopted for analysing materials on tool tips. The experimental results showed that graphite appeared at the tool tip for some feed rates in the cutting of sinusoidal surfaces. The effects of tool geometry on tool wear are also shown.

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Factors affecting chemical wear during machining

Cited by 36 publications

References 13 publications

Cutting performance of diamond tools during ultra-precision turning of electroless-nickel plated die materials

Cutting performance of diamond tools during ultra-precision turning of electroless-nickel plated die materials

A Review of the Precision Glass Molding of Chalcogenide Glass (ChG) for Infrared Optics

Experimental study on the effects of feed rate and tool geometries on tool wear in diamond cutting of sinusoidal microstructured surfaces

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