Effect of tool quality on the machinability characteristics of Al-Cu and Al-Si cast alloys

Mofidi, Hamed; Zedan, Yasser; Samuel, A. M.; Doty, H. W.; Samuel, F. H.

doi:10.1007/s00170-019-04703-0

Cited by 5 publications

(2 citation statements)

References 20 publications

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“…However, no surface damage has been reported, as confirmed from the X-ray 3D surface topography displayed in Figure 22d. According to Hamed et al [65,66], the addition of copper to aluminum-based alloys leads to a better surface finishing compared to Al-Si alloys, which may explain the sluggish response of the surface of the present alloys to machining. resulted in an increase in the surface roughness (Figure 22c).…”

Section: Surface Roughnessmentioning

confidence: 94%

Role of Li and Sc Additions and Machining Conditions on Cutting Forces on Milling Behavior of A7075-Based Alloys

Tahmasbi,

Moungomo,

Samuel

et al. 2024

JMMP

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The present study focuses on the dry and wet end milling of three distinct Aluminum 7075 alloys: A7075, A7075–Sc (with a 0.18% Sc addition), and A7075–Li–Sc (containing 2.2% Li and 0.18% Sc additions). The main objective is to explore how cutting parameters (cutting speed and feed rate), heat treatment, alloy composition, and cooling methods influence A lcutting force. In the initial phase of the investigation, all three alloys underwent heat treatment. Subsequently, the machining process centered on the softest and hardest conditions, aiming at analyzing the impact of hardness on machinability behavior of the three studied alloys, using the same milling tool and a consistent depth of cut under both dry and wet conditions. The investigations also highlight the role of Li and Sc additions on the quality of surface finish, as well as burr and chip formation. In total, a sum of 108 operations have been performed on the present alloys.

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Section: Surface Roughnessmentioning

confidence: 94%

Role of Li and Sc Additions and Machining Conditions on Cutting Forces on Milling Behavior of A7075-Based Alloys

Tahmasbi,

Moungomo,

Samuel

et al. 2024

JMMP

Self Cite

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“…Therefore, dry machining has become the current trend for this alloys group [16]. Nevertheless, the total absence of cutting fluids negatively affects the tool wear and tool life, which are some of the most important economic factors in machining [17]. As a result, the surface integrity of these parts is also altered.…”

Section: Introductionmentioning

confidence: 99%

Influence of Tool Wear on Form Deviations in Dry Machining of UNS A97075 Alloy

Vilches

Martín-Béjar

Gamboa

et al. 2021

Metals

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Geometrical tolerances play a very important role in the functionality and assembly of parts made of light alloys for aeronautical applications. These parts are frequently machined in dry conditions. Under these conditions, the tool wear becomes one of the most important variables that influence geometrical tolerances. In this work, the influence of tool wear on roundness, straightness and cylindricity of dry-turned UNS A97075 alloy has been analyzed. The tool wear and form deviations evolution as a function of the cutting parameters and the cutting time has been assessed. In addition, the predominant tool wear mechanisms have been checked. The experimental results revealed that the indirect adhesion wear (BUL and BUE) was the main tool-wear mechanism, with the feed being the most influential cutting parameter. The combination of high feed and low cutting speed values resulted in the highest tool wear. The analyzed form deviations showed a general trend to increase with both cutting parameters. The tool wear and the form deviations tend to increase with the cutting time only within the intermediate range of feed tested. As the main novelty, a relationship between the cutting parameters, the cutting time (and, indirectly, the tool wear) and the analyzed form deviations has been found.

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Closed-form solution for the inward unsteady-state solidification of cylinders and spheres: pure metals and eutectics

Ferreira

Garcia

Moreira

2022

J Therm Anal Calorim

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Effect of tool quality on the machinability characteristics of Al-Cu and Al-Si cast alloys

Cited by 5 publications

References 20 publications

Role of Li and Sc Additions and Machining Conditions on Cutting Forces on Milling Behavior of A7075-Based Alloys

Role of Li and Sc Additions and Machining Conditions on Cutting Forces on Milling Behavior of A7075-Based Alloys

Influence of Tool Wear on Form Deviations in Dry Machining of UNS A97075 Alloy

Closed-form solution for the inward unsteady-state solidification of cylinders and spheres: pure metals and eutectics

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