A dual-layer approach for enhancing the tribological and machining performance of carbide tools in dry turning of mild-steel alloy

Najar, Kaleem Ahmad; Ahmad, S.; Shah, Mohd Abas; Mushtaq, Zahid; Altaf, Sobura

doi:10.1504/ijmmm.2022.122784

Cited by 1 publication

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“…Kaleem et al made research on the dual‐layer approach for enhancing the tribological and machining performance of carbide tools in dry turning of mild steel alloy. [ 16 ] R. Dumpala et al studied the cutting performance and wear mechanism of diamond‐coated tools with three different internal structures, for the precision machining of composite metal materials. The results showed that the cutting performance of multilayer diamond‐coated tool was better than that of double‐layer diamond‐coated tool and monolayer micron diamond‐coated tool.…”

Section: Introductionmentioning

confidence: 99%

Cutting Performance and Wear Mechanism of Multilayer Diamond‐Coated Tools

et al. 2023

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Monolayer and multilayer diamond films are deposited on WC‐Co cemented carbide by hot‐filament chemical vapor deposition. The growth characteristics of diamond coatings are analyzed. Cutting performance characteristics such as tool life and the stability of machining process in the machining of presintered ZrO2 are compared based on the variation of cutting speed and resultant cutting force, and workpiece surface roughness. For the monolayer diamond coatings, as the concentration of CH4 increases from 1% to 5%, the diamond crystal is transformed from micron columnar crystal to nanocluster crystal. The multilayer diamond coatings combine the advantages of micron‐ and nanocrystalline structures. The multilayer diamond‐coated tool exhibits longer service life and better machining quality. Because of the appearance of the brittle–plastic conversion mechanism, the surface integrity of ZrO2 processed by multilayer diamond‐coated tool is relatively high. As for the uncoated tool, the workpiece is mainly machined by brittle spalling. The interfacial stratified fracture system between the interlayers is proposed to be the toughening mechanism of the multilayer structure.

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Section: Introductionmentioning

confidence: 99%