Moisture requirements and role of ash and microporosity in pelletization of coal fines

Mehrotra, V.P.; Sastry, K.V.S.

doi:10.1016/0032-5910(86)80008-0

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…Another reason for the shorter life of the DLC coated tool compared to the uncoated carbide tool life may be the dissolution of the carbon from the coating into the chip flowing away from the cutting region. Mehrotra and Quinto [11] showed that the high coating hardness provides resistance to crater wear developed at high cutting temperatures as a result of chemical wear such as diffusion, oxidation or graphitization, however observations from this study (Figures 2 and 3) have indicated otherwise. In a recent study, Bermingham et al [12] reported that diffusion related tool wear is a dominant wear mechanism, sometimes in conjunction with adhesive wear, when machining titanium alloys.…”

Section: Discussioncontrasting

confidence: 61%

Tool Life Study of Coated/Uncoated Carbide Inserts during Turning of Ti6Al4V

Palanisamy

Rashid

Brandt

et al. 2014

AMR

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For more than three decades, the machining industry has been employing coated tools to enhance productivity via improving tool life. Nonetheless, the problems associated with machining titanium alloys have been still prevalent. Advanced alloy materials such as diamond-like carbon (DLC) coatings are developed to combat these issues. In this study, the performance of a DLC coated tool is assessed and its tool wear mechanisms investigated. For the cutting conditions used during these trials, it has been identified that the DLC coated tool exhibited severe tool wear due to delamination and diffusion in comparison with the uncoated carbide tools. In conclusion, it is suggested that the performance of the DLC coated tools can be enhanced by applying alternate strategies to remove heat from the cutting region.

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Section: Discussioncontrasting

confidence: 61%