Influence of the laser parameters on the cutting edge preparation and the performance of cemented carbide indexable inserts

Zimmermann, Marco; Kirsch, Benjamin; Kang, Yiyun; Herrmann, Thomas; Aurich, Jan C.

doi:10.1016/j.jmapro.2020.09.003

Cited by 25 publications

(8 citation statements)

References 35 publications

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“…Tool material, coating technology, and cutting-edge preparation techniques are important factors that affect the cutting performance of tools. With the development of mechanical manufacturing, cutting-edge preparation techniques have received great attention in the tool manufacturing industry [8,9]. These techniques can meet specific geometric shape requirements and solve microscopic geometric defects on the tool surface, effectively improving the tool's service life and the machining quality of workpieces.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on the Effect of Cutting-Edge Shape Factor on the Cutting Performance of Titanium Alloy

You

Yuan

2023

Coatings

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Titanium alloys are extensively utilized in the aerospace industry due to their exceptional properties, encompassing high specific strength and corrosion resistance. Nevertheless, these alloys present inherent challenges as difficult-to-machine materials characterized by low thermal conductivity and high chemical reactivity. The machining of titanium alloys often gives rise to elevated cutting forces and temperatures, thereby resulting in compromised machining quality and substantial tool wear. This study explores the influence of the cutting-edge shape factor on tool performance and optimizes the cutting-edge structure through finite element simulation. Remarkably, the cutting performance of the tool demonstrates significant enhancement following cutting-edge passivation. Alterations in the geometric shape of the cutting-edge after passivation exert a notable impact on the tool’s cutting performance, with a superior performance observed for shape factor K > 1 compared to alternative edge structures. Additionally, numerical simulation is employed to analyze the influence of passivation values Sγ and Sα on cutting force and temperature, which are crucial factors affecting cutting performance. The results underscore the significant impact of Sγ on cutting force and temperature. Furthermore, within the confines of maintaining an identical shape factor K, the blade segment group featuring Sγ = 40 μm and Sα = 25 μm exhibits the lowest maximum cutting temperature, thereby indicating the optimal tool design attainable through this study.

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation on the Effect of Cutting-Edge Shape Factor on the Cutting Performance of Titanium Alloy

You

Yuan

2023

Coatings

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“…Wang et al [ 9 ] used wet abrasive jet machining, brushing, and drag finishing methods to prepare cemented carbide insert edges, and they found that the residual compressive stress levels of the edges prepared with abrasive jet machining were 63% higher than those of the edges without preparation, and the surface roughness levels of the edges prepared with drag-finishing were the lowest, while the cutting performances of the edges prepared with drag finishing were also the best. Zimmermann et al [ 10 ] used laser machining to prepare the cutting edge of a cemented carbide tool and found that the formation of residual tensile stresses and the deterioration of the mechanical properties of the surface layer of a tool could be reduced with appropriate laser-machining parameters.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Chemical–Mechanical Synergistic Preparation for Cemented Carbide Insert Cutting Edge

Qin,

Pan,

Guo

et al. 2023

Micromachines

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Typical edge defects in the edge region of a new cemented carbide insert without edge preparation include burrs, poor surface quality, micro-breakages, and irregularities along the edge. To address the problems in new cemented carbide inserts without edge preparations, a chemical–mechanical synergistic preparation (CMSP) method for the cemented carbide insert cutting edge was proposed. Firstly, the CMSP device for the insert cutting edge was constructed. Then, the polishing slurry of the CMSP for the insert cutting edge was optimized using the Taguchi method combined with a grey relation analysis and fuzzy inference. Finally, orthogonal experiments, the Taguchi method, and analysis of variance (ANOVA) were used to investigate the effect of the polishing plate’s rotational speed, swing angle, and input frequency of the controller on the edge preparation process, and the parameters were optimized. The results showed that the best parameter combination for the polishing slurry for the cemented carbide inserts was the mass concentration of the abrasive particle of 10 wt%, the mass concentration of the oxidant of 10 wt%, the mass concentration of the dispersant of 2 wt%, and the pH of 8. The CMSP process parameter combination for the linear edge had the polishing plate’s rotational speed of 90 rpm, the swing angle of 6°, and the input frequency of the controller of 5000 Hz. The optimum CMSP process parameter combination for the circular edge had the polishing plate’s rotational speed of 90 rpm, the swing angle of 6°, and the input frequency of the controller of 7000 Hz. The polishing plate’s rotational speed had the most significant impact on the edge preparation process, followed by the swing angle, and the effect of the input frequency of the controller was the smallest. This study demonstrated that CMSP is a potential way to treat the cemented carbide insert cutting edge in a tool enterprise.

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“…Vopát et al [ 9 ] proposed a novel method called edge preparation by plasma discharges in electrolyte (PDE), and the cutting edge radii were formed by immersing the cutting tool into an electrolyte. Laser machining is also used in the preparation of tool edges, and the parameters used for laser machining have a significant impact on the machined surface, surface integrity, and tool performance [ 10 ]. Vopát et al [ 11 ] found that the cemented carbide turning inserts with larger cutting edge radius were worn out faster during the machining and the tool life increased when the cutting edge radius was smaller.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cemented Carbide Insert Cutting Edge by Flexible Fiber-Assisted Shear Thickening Polishing Method

et al. 2022

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Reasonable cutting edge preparation can eliminate microscopic defects and improve the performance of a cutting tool. The flexible fiber-assisted shear thickening polishing method was used for the preparation of cemented carbide insert cutting edge. The influences of the polishing angle and polishing speed on the cutting edge preparation process were investigated, and the cutting edge radius and K-factor were employed as evaluation indexes to evaluate the edge shape. A prediction model of the cutting edge radius was also established using the mathematical regression method. The results show that the polishing angle has a more significant effect on the cutting edge radius. The cutting edge preparation efficiency is the highest under the polishing angle of 10°, and the cutting edge radius increased from the 15 ± 2 μm to 110 ± 5 μm in 5 min. The cutting edge shape can be controlled by adjusting the polishing angle, and the K-factor varies from 0.14 ± 0.03 to 0.56 ± 0.05 under the polishing angle (from −20° to 20°). The polishing speed has a less effect on the cutting edge radius and shape, but increasing the polishing speed within a certain range can improve the efficiency of cutting edge preparation. The flank face roughness decreased from the initial Ra 163.1 ± 10 nm to Ra 5.2 ± 2 nm at the polishing angle of −20°, which is the best polishing angle for the flank face surface roughness. The ANOVA method was employed to evaluate the effective weight of the polishing angle and polishing speed on preparation efficiency. The polishing angle (86.79%) has the more significant influence than polishing speed (13.21%) on the cutting edge preparation efficiency. The mathematical regression method was used to establish the model of the prediction of the cutting edge radius with polishing angle and speed, and the models were proved rationally. The results indicate that the FF-STP is an effective method for the high consistency preparation of cemented carbide insert cutting edge.

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Influence of the laser parameters on the cutting edge preparation and the performance of cemented carbide indexable inserts

Cited by 25 publications

References 35 publications

Numerical Investigation on the Effect of Cutting-Edge Shape Factor on the Cutting Performance of Titanium Alloy

Numerical Investigation on the Effect of Cutting-Edge Shape Factor on the Cutting Performance of Titanium Alloy

Experimental Study on Chemical–Mechanical Synergistic Preparation for Cemented Carbide Insert Cutting Edge

Preparation of Cemented Carbide Insert Cutting Edge by Flexible Fiber-Assisted Shear Thickening Polishing Method

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