Trochoidal Milling and Neural Networks Simulation of Magnesium Alloys

Zagórski, Ireneusz; Kulisz, Monika; Kłonica, Mariusz; Matuszak, Jakub

doi:10.3390/ma12132070

Cited by 37 publications

(37 citation statements)

References 50 publications

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“…Often, during the relaxation process, the objects are destroyed, which is also associated with additional costs [7,15,18,31,32]. However, it should be noted that deformations of thin-walled elements also arise from other factors, such as temperature, clamping force, cutting force, tool geometry, etc., [33][34][35][36][37][38].…”

Section: Methodsmentioning

confidence: 99%

Pre-Machining of Rolled Plates as an Element of Minimising the Post-Machining Deformations

2020

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The paper presents the influence of the milling strategy, the relation between the cutting tool feed direction and the rolling direction, as well as the pre-machining consisting of the removal of the textured surface layer of rolled plates in the rolling process on the thin-walled elements deformations made of the EN AW-2024 T351 wrought aluminium alloy, after milling. The research used strategies such as: high-performance cutting (HPC), high-speed cutting (HSC) and conventional milling (CM), as well as their combinations. Another tested variable was the relation between the tool feed direction and the rolling direction. In addition, the tests were carried out in the following versions: leaving the textured surface layer created after plastic working and with its removal with technological parameters corresponding to HSC and CM. Based on the obtained results, it was found that the post-machining deformation of thin-walled elements can be minimised owing to the use of a selected milling strategy and its combination with pre-machining (or lack thereof). It was also observed that larger deformations were obtained for samples after milling in the direction perpendicular to the rolling direction.

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Section: Methodsmentioning

confidence: 99%

Pre-Machining of Rolled Plates as an Element of Minimising the Post-Machining Deformations

2020

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“…The use of the trochoid grooving method places high demands on machine tools that must be able to provide sufficient acceleration to ensure the prescribed workpiece trajectory and have sufficient power to provide the requested speed. Machining force components can be measured indirectly; for example, from the power output of the machine electric motor or the torque of the power relative to the rotation axis [7,30]. In the presented experiments, exact, direct measurements of the components of the total machining force were used using a stationary dynamometer, which measures the rectangular projections of the components of the forces F f , F fn and F p in the 3D coordinate system axes x, y and z.…”

Section: Cutting Forces In Trochoidal Millingmentioning

confidence: 99%

Analysis and Prediction of the Machining Force Depending on the Parameters of Trochoidal Milling of Hardened Steel

et al. 2020

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Current demands on quality are the engine of searching for new progressive materials which should ensure enough durability in real conditions. Due to their mechanical properties, however, they cannot be applied to conventional machining methods. In respect to productivity, one of the methods is the finding of such machining technologies which allow achieving an acceptable lifetime of cutting tools with an acceptable quality of a machined surface. One of the mentioned technologies is trochoidal milling. Based on our previous research, where the effect of changing cutting conditions (cutting speed, feed per tooth, depth of cut) on tool lifetime was analysed, next, we continued with research on the influences of trochoid parameters on total machining force (step and engagement angle) as parameters adjustable in the CAM (computer-aided machining) system. The main contribution of this research was to create a mathematical-statistical model for the prediction of cutting force. This model allows setting up the trochoid parameters to optimize force load and potentially extend the lifetime of the cutting tool.

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“…This allows the use of larger depths of cut (often 1÷2 × tool diameter) and a significant increase in the cutting speed. More information on trochoidal milling is provided in the articles [14,15,17].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Trochoidal Tool Path Generation Method on the Milling Process Efficiency

Waszczuk¹

2020

Adv. Sci. Technol. Res. J.

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The article presents a comparison of three trochoidal paths: written by G-Code, generated using the overlays from the machine level, and generated using the CAD/CAM environment. The parameters determining the effectiveness of the process were: maximum achievable feed speed, surface roughness and waviness, cutting forces and cutting temperature when milling NC6 steel (50HRC) using a 10 mm cutter dimeter. The main measurement results include: an increase in the maximum feed speed value by almost 35% when using the A and C paths compared to the type B path and nearly a double increase in surface roughness when using the path generated using the CAD/CAM environment compared to the B path. The most important conclusions was that it is not always possible to machine with the recommended parameters by the tool manufacturer, especially when machining narrow grooves. It was proven that that the use of paths with the displacement described by arcs and straight lines as a trochoidal step over reduces the possibility of milling at high feed rate.

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Trochoidal Milling and Neural Networks Simulation of Magnesium Alloys

Cited by 37 publications

References 50 publications

Pre-Machining of Rolled Plates as an Element of Minimising the Post-Machining Deformations

Pre-Machining of Rolled Plates as an Element of Minimising the Post-Machining Deformations

Analysis and Prediction of the Machining Force Depending on the Parameters of Trochoidal Milling of Hardened Steel

Influence of the Trochoidal Tool Path Generation Method on the Milling Process Efficiency

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