Thermal analysis of a proposed internally cooled machining tool system

França, Pedro Henrique Pires; Barbosa, Lucas Melo Queiroz; Fernandes, Gustavo Henrique Nazareno; Silva, Leonardo Rosa Ribeiro da; Machado, Álisson Rocha; Martins, Paulo Sérgio; Silva, Márcio Bacci da

doi:10.1007/s00170-022-10602-8

Cited by 9 publications

(2 citation statements)

References 23 publications

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Section: Introductionmentioning

confidence: 99%

“…In machining processes, cutting fluid application is essential not only to facilitate chip removal or breakage but also to reduce tool wear, balance the machining temperature, protect the workpiece and the machine against the corrosion process, and to ensure the dimensional and surface quality of the machined part [1]. As for cutting speed, the fluid has two functions: (1) lubrication at low speeds and (2) cooling at high speeds [2]. In 1, the fluid penetrates the workpiece/tool interface, forming a protective film that reduces the coefficient of friction, reducing the magnitude of the abrasion and adhesion mechanisms, which, later, can lead to the appearance of the built-up cutting edge (BUE).…”

Section: Introductionmentioning

confidence: 99%

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Study of a Cutting Fluid Application System Adaptation on a Bench Milling Machine for an Academic Laboratory Environment

Martins

Fernandes

2023

J. Mod. Mech. Eng. Technol.

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Cutting fluid is a resource that can benefit machining, improving the service life, surface, and dimensional qualities of cutting tools. For the operation of a basic cutting fluid application system, it is necessary to consider the components that store, filter, and induce the flow of the cutting fluid. Some essential components are the reservoir, the filter, and the pump. Aiming to provide better machining conditions, this study presented the proposal for designing and manufacturing a cutting fluid application system for an academic laboratory's bench drill/milling machine. The experimental research characterized the study methodology, in which the system was built with the least possible resources. The main result showed that the system achieved the proposed objective. For pump selection, a system of equations was developed in Microsoft Excel software, which indicated a pressure variation in the flow system of approximately 15 kPa. After the three-dimensional modeling, a script for the manufacture and assembly of the system components was prepared, involving the processes of forming, machining and welding. Adaptations were made to the machine tool, such as the insertion of a limit switch that reduced the longitudinal displacement of the work table by 150 mm. An electronic command system was inserted to control the cutting fluid flow. In the testing phase, positive aspects were observed (reservoir position, absence of leaks, cutting fluid flow, among others) and negative aspects (cutting fluid return paths). Some further improvements proved possible, especially on a machine not designed to have a cutting fluid system.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of a Cutting Fluid Application System Adaptation on a Bench Milling Machine for an Academic Laboratory Environment

Martins

Fernandes

2023

J. Mod. Mech. Eng. Technol.

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Effect of increased mechanical strength on the machinability of graphite cast irons in face milling

Reis

Silva

et al. 2023

Int J Adv Manuf Technol

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Due to the low cost and high vibration damping capacity, gray cast irons are commonly used in machine tool bases, in addition to applications with noise restrictions, such as engine blocks, housings, and brakes. The matrix's graphite, sul des, and ferrite/pearlite ratio are some of the most important parameters governing the machinability of the gray cast irons. This work aims to evaluate the machinability of high-resistance gray cast irons of the FC 300 grade, in two versions, with the addition of molybdenum (FC 300 (Mo) ) and with re ned graphite and addition of molybdenum (FC 300 (Mo+RG) ), for use in cylinder heads and engines blocks, compared to materials that have been used for this purpose, gray cast iron FC 250 and the compacted graphite cast iron FV450. The face milling process was chosen for the tests, as it is widely used in manufacturing cylinder heads and engine blocks. Uncoated cemented carbide tools with tangential rhomboid geometry were used in the experiments. Analysis of tool life and wear mechanisms and machined surfaces' quality (Ra roughness parameter) where the output variables are considered. The materials were characterized according to the cementite interlayer spacing and microhardness of the perlite matrix, the number of eutectic cells, and the distribution of manganese sul de inclusions, with those characterizations being correlated with the machinability results. The cutting speed and feed were varied, and the dry condition was used. Among the gray cast irons investigated, the FC 300 (Mo+RG) presented worse machinability rates because of its greater mechanical resistance and hardness. Regarding the surface nish, at the beginning of the tool life tests (without considering tool wear) and employing the highest cutting speed, the FC 300 (Mo+RG) showed the best results, but at the lowest cutting speed, the worst.

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Towards green machining: wear analysis of a novel eco-friendly cooling strategy for Inconel 718

Fernandes,

Barbosa,

França

et al. 2023

Int J Adv Manuf Technol

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Thermal analysis of a proposed internally cooled machining tool system

Cited by 9 publications

References 23 publications

Study of a Cutting Fluid Application System Adaptation on a Bench Milling Machine for an Academic Laboratory Environment

Study of a Cutting Fluid Application System Adaptation on a Bench Milling Machine for an Academic Laboratory Environment

Effect of increased mechanical strength on the machinability of graphite cast irons in face milling

Towards green machining: wear analysis of a novel eco-friendly cooling strategy for Inconel 718

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