Influence of the lubricoolant strategy on thermo-mechanical tool load

Krämer, A.; Klocke, Fritz; Sangermann, Hubertus; Lung, Dieter

doi:10.1016/j.cirpj.2013.09.001

Cited by 30 publications

(10 citation statements)

References 27 publications

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“…Hence the adoption of a suitable cutting fluid is necessary to prevent a rapid tool wear [6]. During the last decades, several researchers have being working to improve the Ti6Al4V machinability [7], by testing different tool substrate and coatings [8] and lubricating strategies, such as High Pressure Water Jet Assistance (HPWJA) [9] and cryogenic cooling [10]. However, the adoption of either conventional flood cooling or HPWJA in machining Ti6Al4V surgical implants implies costly and time consuming cleaning procedure before delivering the products.…”

Section: Introductionmentioning

confidence: 99%

Analysis of tool wear in cryogenic machining of additive manufactured Ti6Al4V alloy

Bordin

Bruschi

Ghiotti

et al. 2015

Wear

187

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Section: Introductionmentioning

confidence: 99%

Analysis of tool wear in cryogenic machining of additive manufactured Ti6Al4V alloy

Bordin

Bruschi

Ghiotti

et al. 2015

Wear

187

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“…Since then, high-pressure coolant technology has helped the metal cutting industry to advance with respect to improved tool life and surface quality, as well as high productivity. The positive effect of high-pressure coolant jets when cutting Alloy 718 has previously been studied both experimentally [3,4] and numerically [5]. …”

Section: Introductionmentioning

confidence: 99%

Influence of Surface Features for Increased Heat Dissipation on Tool Wear

et al. 2018

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The critical problems faced during the machining process of heat resistant superalloys, (HRSA), is the concentration of heat in the cutting zone and the difficulty in dissipating it. The concentrated heat in the cutting zone has a negative influence on the tool life and surface quality of the machined surface, which in turn, contributes to higher manufacturing costs. This paper investigates improved heat dissipation from the cutting zone on the tool wear through surface features on the cutting tools. Firstly, the objective was to increase the available surface area in high temperature regions of the cutting tool. Secondly, multiple surface features were fabricated for the purpose of acting as channels in the rake face to create better access for the coolant to the proximity of the cutting edge. The purpose was thereby to improve the cooling of the cutting edge itself, which exhibits the highest temperature during machining. These modified inserts were experimentally investigated in face turning of Alloy 718 with high-pressure coolant. Overall results exhibited that surface featured inserts decreased flank wear, abrasion of the flank face, cutting edge deterioration and crater wear probably due to better heat dissipation from the cutting zone.

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“…Thus, the coolant is able to reach closer to the cutting edge and forms a liquid wedge between chip and tool rake. Several studies have shown that this leads to better chip breakability, improved tool life, and the possibility to apply higher cutting speeds and feed rates [4][5][6][7]. For example, Krämer et al [5] have investigated how an increased coolant supply pressure and flow rate influence the cutting tool temperature when Alloy 718 is turned.…”

Section: Introductionmentioning

confidence: 99%

Characterization of tool wear when machining alloy 718 with high-pressure cooling using conventional and surface-modified WC–Co tools

Hoier

Klement

Alagan

et al. 2017

J. Superhard Mater.

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Characterization of tool wear when machining Alloy 718 with high pressure cooling using conventional and surface-modified WC-Co tools Coolant supplied by high pressure into the cutting zone has shown the lower thermal loads on the tool when machining difficult-to-cut materials as the Alloy 718. In this study, we investigate how the combination of high-pressure cooling and tool-surface modifications can lead to further improvements regarding tool life. The general approach is to enhance the coolant-tool interaction by increasing the contact area. Therefore, we machined cooling features into flank and rake faces of commercially available cemented tungsten carbide inserts. In this way, the surface area was increased by ~ 12 %. After the cutting tests, the tools were analyzed by scanning electron microscopy combined with energy-dispersive X-ray spectroscopy. Compared with conventional tools, the tool modifications reduced the flank wear by 45 % for the investigated cutting parameters. Furthermore, we were able to significantly increase the cutting speed and feed rate without failure of the tool. The investigated surface modifications have great potential to enhance the productivity of metal cutting processes.

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Influence of the lubricoolant strategy on thermo-mechanical tool load

Cited by 30 publications

References 27 publications

Analysis of tool wear in cryogenic machining of additive manufactured Ti6Al4V alloy

Analysis of tool wear in cryogenic machining of additive manufactured Ti6Al4V alloy

Influence of Surface Features for Increased Heat Dissipation on Tool Wear

Characterization of tool wear when machining alloy 718 with high-pressure cooling using conventional and surface-modified WC–Co tools

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