Methodic development of laser micro structured cutting tools with microscale textures for AW7075 aluminum alloy using a Plackett–Burman screening design

Esch, Philipp; Klocke, Fritz; Bauernhansl, Thomas; Schneider, M.

doi:10.1016/j.cirpj.2020.06.008

Cited by 7 publications

(4 citation statements)

References 21 publications

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“…Laser micromachining of grooves with ultrashort laser pulses is a versatile process that can be applied for various applications, such as cutting through thin metal foils [1], dicing silicon wafers [2], engraving implants made of titanium alloy to enhance osseointegration [3] or engraving cutting tools to reduce the force and friction in mechanical machining of aluminum [4]. In micromachining processes with pulsed lasers, a relative movement between the laser beam and the workpiece is created either by deflecting the laser beam over the processed surface by means of a scanner or by moving the workpiece past the static beam by means of a linear axis.…”

Section: Introductionmentioning

confidence: 99%

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Analytical Model for the Depth Progress during Laser Micromachining of V-Shaped Grooves

2022

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An analytical model is presented that allows predicting the progress and the final depth obtained by laser micromachining of grooves in metals with ultrashort laser pulses. The model assumes that micromachined grooves feature a V-shaped geometry and that the fluence absorbed along the walls is distributed with a linear increase from the edge to the tip of the groove. The depth progress of the processed groove is recursively calculated based on the depth increments induced by successive scans of the laser beam along the groove. The experimental validation confirms the model and its assumptions for micromachining of grooves in a Ti-alloy with femtosecond pulses and different pulse energies, repetition rates, scanning speeds and number of scans.

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Section: Introductionmentioning

confidence: 99%

“…In open microfluidic systems, a higher flow velocity of liquids is achieved for grooves with a higher aspect ratio [5,6]. Grooves with higher aspect ratios also enhanced the performance of engraved cutting tools in mechanical machining [4].…”

Section: Introductionmentioning

confidence: 99%

Analytical Model for the Depth Progress during Laser Micromachining of V-Shaped Grooves

2022

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“…Aluminum alloys have been widely used in the aerospace and medical fields, with the advantages of high strength, strong corrosion resistance, easy forming and excellent mechanical properties [ 1 , 2 , 3 ]. However, conventional machining methods show difficulty in machining aluminum alloys due to their metallic properties.…”

Section: Introductionmentioning

confidence: 99%

Effects of Laser Machining Aluminum Alloy in Different Media

Huang

Tang

et al. 2022

Micromachines

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To study the effects of aluminum alloys processed by a laser in air and water and at different water velocities, corresponding experiments were conducted and the impacting effects of different water velocities on the surface of the workpiece were simulated, respectively. The results show that when laser processing aluminum alloy materials in air, there is more slag and a recondensation layer on both sides of the groove, the heat-affected zone is larger and the surface processing quality is poor. When laser processing aluminum alloy materials in water, the processing quality is improved. With the increase in water velocity, the impacting and cooling effect is enhanced, the groove depth and groove width show a trend of first increasing and then decreasing, the slag and recondensation layer on both sides of the groove are reduced, the heat-affected zone is reduced and the processing quality of the groove is improved. When the water velocity reaches 30 m/s, a better groove can be obtained. Laser processing aluminum alloy materials in water can obtain better processing quality than laser processing in air.

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“…In the literature, there have been published works on texturing the surface of cutting tools, in which their effect on friction and wear were studied [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. These studies showed that this approach allows for improving the tribological properties in the tool–chip interface, reducing the machining temperature, the rate of tool wear and the cutting forces, and consequently obtaining an increase in machining productivity [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Surface Texturing of Ceramic and Superhard Cutting Tools on the Machining Process—A Review

et al. 2022

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Machining is an indispensable manufacturing process for a wide range of engineering materials, such as metals, ceramics, and composite materials, in which the tool wear is a serious problem, which affects not only the costs and productivity but also the quality of the machined components. Thus, the modification of the cutting tool surface by application of textures on their surfaces is proposed as a very promising method for improving tool life. Surface texturing is a relatively new surface engineering technology, where microscale or nanoscale surface textures are generated on the cutting tool through a variety of techniques in order to improve tribological properties of cutting tool surfaces by reducing the coefficient of friction and increasing wear resistance. In this paper, the studies carried out to date on the texturing of ceramic and superhard cutting tools have been reviewed. Furthermore, the most common methods for creating textures on the surfaces of different materials have been summarized. Moreover, the parameters that are generally used in surface texturing, which should be indicated in all future studies of textured cutting tools in order to have a better understanding of its effects in the cutting process, are described. In addition, this paper proposes a way in which to classify the texture surfaces used in the cutting tools according to their geometric parameters. This paper highlights the effect of ceramic and superhard textured cutting tools in improving the machining performance of difficult-to-cut materials, such as coefficient of friction, tool wear, cutting forces, cutting temperature, and machined workpiece roughness. Finally, a conclusion of the analyzed papers is given.

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Methodic development of laser micro structured cutting tools with microscale textures for AW7075 aluminum alloy using a Plackett–Burman screening design

Cited by 7 publications

References 21 publications

Analytical Model for the Depth Progress during Laser Micromachining of V-Shaped Grooves

Analytical Model for the Depth Progress during Laser Micromachining of V-Shaped Grooves

Effects of Laser Machining Aluminum Alloy in Different Media

The Influence of Surface Texturing of Ceramic and Superhard Cutting Tools on the Machining Process—A Review

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