Fabrication and Wear Behavior of Alumina Based Cutting Tools on Machining AISI 1045

Adam, Abdul Aziz; Bakar, Hadzley Abu; Azhar, Anis Afuza; Tamin, Norfauzi; Al-Amani, Umar; Herawan, Safarudin Gazali

doi:10.1007/978-981-19-3179-6_25

Cited by 1 publication

(3 citation statements)

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“…Machining trials were performed according to ISO 3685, which is a standard of tool life testing with a single point turning tools at varying cutting speeds and feed rates, as prescribed in Table 4. The selection of parameters such as the cutting speed, feed rate, and depth of cut was based on the range used by previous researchers as described in [9,16]. A Haas SL-20T CNC lathe machine was used to perform the turning operation, as shown in Figure 2a.…”

Section: Methodsmentioning

confidence: 99%

“…Many researchers have worked on the fabrication of alumina-based cutting tools for toughness and wear resistance [8][9][10][11][12][13][14][15][16]. To prepare an alumina insert that can be used as a cutting tool, the fabrication process should be controlled in terms of the powder preparation and the dimensional accuracy [8].…”

Section: Introductionmentioning

confidence: 99%

“…The high density of an alumina compact provides hardness and structural integrity, promoting better load resistance during cutting tool-workpiece engagement [13,14]. The shrinkage of an alumina insert provides dimensional accuracy by controlling the contact area and conditions that affect the precision edge of the insert, especially at the nose radius [15,16]. Controlling the dimensional accuracy is critical for the shearing action during machining that would provide precision contact engagement to control the cutting force, temperature, load impact, and slicing stability.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Sintering Parameters on the Mechanical Properties and Wear Performance of Alumina Inserts

et al. 2022

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The sintering temperature and holding time have a significant impact on the densification of a ceramic compact. In this study, alumina inserts were made with varying sintering temperatures and holding times. The procedure began with the compacting of alumina powders inside a mould with trapezium and round shapes. These inserts were then sintered between 1200 °C and 1400 °C for 5 to 9 h holding time. The sintered samples underwent analysis based on the shrinkage size, density, and microstructure. The sample with the highest density was chosen for additional machining tests. The results showed that the alumina shrinkage ranged from 3 to 6%, with a maximum relative density of 91.3% recorded when the sintering parameter was applied at 1400 °C and a 9 h holding time. The transition of the grain growth was observed depending on the sintering temperature and heating duration. When machined with AISI 1045 carbon steel, the sintered alumina inserts achieved a maximum tool life of 35 s at a cutting speed of 350 m/min. The sintered inserts exhibited brittle characteristics with a dominant notch wear and abrasive mechanisms.

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Section: Methodsmentioning

confidence: 99%