Optimization of jet position and investigation of the effects of multijet MQCL during end milling of Ti-6Al-4V

G, Pradeep Krishnan; Saravanan, P.; Raj, D. Samuel; Hussain, Shuhaib; Shankar, Varun; Raj, N. Thilak

doi:10.1016/j.jmapro.2021.01.038

Cited by 23 publications

(6 citation statements)

References 29 publications

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“…The authors of [18] investigated the way the cooling strategy can influence some aspects of cutting technologies, like power consumption or the roughness of the surface machined by the end milling of a certain material. A strategy of optimizing the cooling performance by using three coolant jets is presented in [19]. One jet has a stable orientation, while the orientation of the other two can be adjusted to fit better to the specifics of machining.…”

Section: Introductionmentioning

confidence: 99%

A Fully Symmetrical High Performance Modular Milling Cutter

et al. 2021

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Milling cutters belong to a widely used category of cutting tools. In this category, modular milling cutters are a narrow niche, less studied, and developed. Usually, they are symmetrical cutting tools. A milling cutting tool that can be reconfigured due to its modularity and still keeps its symmetry becomes more interesting and useful for machining. The paper presents such a new concept in a computer aided design (CAD) model of a cutting tool based on some novel features. The tool itself is designed as a modular complex. The way the torque is transmitted from the shaft to the elementary cutters is an original one, as they are joined together based on a profiled assembling. The profile is one formed of filleted circular sectors and segments. The reaming of the elementary cutters has two sections each of them assuming a task: transmitting the torque, and precisely centring, respectively. The cooling system, which is a component of the tool, provides the cutting area with coolant both on the front and side face of the cutting tool. Some nozzles placed around the cutting tool send jets or curtains of coolant towards the side surface of the cutter, instead of parallel, as some existing solutions do. The source of the coolant supply is the inner cooling system of the machine tool. This provides the tool with coolant having proper features: high enough flow and pressure. The output of the research is a CAD-based model of the modular milling cutter with a high performance cooling system. All of this model’s elements were designed taking into account the design for manufacturing principles, so it will be possible to easily manufacture this tool. Several variants of milling cutters obtained by reconfiguring the complex tool are presented. Even if the tool is usually a symmetric complex, it can process asymmetric parts. Symmetry is intensively used to add some advantages to the modular cutting tool: balanced forces in the cutting process, the possibility of controlling the direction of the axial cutting force, and a good machinability of the grooves used to assemble the main parts of the cutting tool.

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Section: Introductionmentioning

confidence: 99%

A Fully Symmetrical High Performance Modular Milling Cutter

et al. 2021

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“…One has a fixed direction, and the other two are variable. The angle of these two jets is determined to get the best cooling [21]. The present paper deals, as well, with multijet cooling system, but from a different, original perspective.…”

Section: Introductionmentioning

confidence: 99%

Modular milling cutter with inner-cooling network

et al. 2021

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The big sized milling cutters are expensive tools and are not appropriate for small batches production. Making these tools more versatile, able to fit to different kinds of processes and shapes of the parts to be machined is a must. As well, cooling the cutting area is very important. The existing end-mill cutters are designed to feed internally with coolant only the teeth on the front side. The paper presents a concept of a modular tool, made of elementary disk cutters, able to be reconfigured to get different shapes and sizes. The main element of novelty the paper claims is the inner cooling system of the complex tool. The special design of the elementary milling cutters and of the shaft they are mounted on make the tool able to lead jets of coolant to every insert, no matter where they are placed, on the cylindrical or on the front side of the milling cutter. A network of channels drilled in the shaft and in the body of elementary milling cutters make this possible. The capability to splash with coolant under high pressure all the cutting edges do not depend on the number of teeth of the tool. Being delivered from inside the cutting tool, the coolant splashes directly on the contact surface between the inserts and workpiece, which makes cooling more efficient.

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“…The dry milling method has an impact on high cutting temperatures at high speeds [6]. The use of a vortex tube (VT) can reduce the temperature in the milling process [7].VT is a cooling device with a mechanical system that can separate high-pressure gas streams into low-pressure hot and cold streams [8]. The distribution of temperature, pressure, and velocity components is obtained to understand the flow characteristics in VT [8].…”

mentioning

confidence: 99%

“…The dry milling method has an impact on high cutting temperatures at high speeds [6]. The use of a vortex tube (VT) can reduce the temperature in the milling process [7].…”

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confidence: 99%

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Optimization of Vortex Tube Design and Performance for Cooling Milling Process

Sifa,

Endramawan,

Safi'i

et al. 2023

IJIE

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The manufacturing process is required to improve cleanliness and reduce environmental pollution and the exploration of natural resources is limited. One of the manufacturing processes is machining, especially the milling process. The phenomenon during the milling process friction occurs when the workpiece is cut by the milling tool, the effect friction between tool and workpiece occurs temperature rise. To reduce the temperature rise of the milling tool during the workpiece cutting process, an effective and efficient alternative cooling is needed through the use of vortex tubes. The research method was carried out using the Computational Fluid Dynamic (CFD) approach and experiments with the use of inlet pressure = 1-5 Bar, and the parameters of variations in valve shape, number of nozzles, and pipe lengths. The overall results of the CFD and experiment of parameters in inlet pressure on the number of nozzles, valve shapes, and tube lengths, have an impact on the increasing inlet pressure, the higher the thermodynamic characteristics that occur in the vortex tube, but there is a loss of outlet pressure in each parameter. The geometry of the vortex tube selected is the number of nozzles 6, valve fillet shape, and tube length of 50 mm, vortex tube can be used for cooling the milling tool with the addition of a flexible hose at a distance of 5 cm from the tooltip.

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Optimization of jet position and investigation of the effects of multijet MQCL during end milling of Ti-6Al-4V

Cited by 23 publications

References 29 publications

A Fully Symmetrical High Performance Modular Milling Cutter

A Fully Symmetrical High Performance Modular Milling Cutter

Modular milling cutter with inner-cooling network

Optimization of Vortex Tube Design and Performance for Cooling Milling Process

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