State of Residual Stresses After the Process of Milling Selected Aluminium Alloys

Kuczmaszewski, Józef; Łogin, Waldemar; Pieśko, Paweł; Zagórski, Ireneusz

doi:10.12913/22998624/81768

Cited by 6 publications

(10 citation statements)

References 3 publications

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“…Wang et al (Wang et al, 2017) also used X-Ray Diffraction method combined with electropolishing removal process to study the near-surface and sub-surface residual stresses profile of machined Inconel 718 produced by ball end milling. Kuczmaszewski et al (Kuczmaszewski et al, 2018) have studied the state of stresses in half-finished product and in samples after machine cutting for rolled AW-2024 and AW-7075 aluminium alloys using combination of X-Ray Diffraction and electrochemical polishing. In addition, Turan et al (Turan et al, 2019) measured the residual stress by strain gauge and X-ray diffraction methods in different shaped of rails.…”

Section: Residual Stress and Deformation Measurement Methodsmentioning

confidence: 99%

A Review on Measurement Methods for Machining Induced Residual Stress

Saptaji

Afiqah

Ramdan

2019

IJoCED

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The chip formation in mechanical machining / cutting process involves thermal loading and mechanical loading in the form of large plastic deformations, high strain, strain rates and high temperatures in the cutting zone. These loadings usually induce plastic deformation in the form of residual stresses in the surface and sub-surface of the machined workpiece. Residual stress issue is essential to be studied in order to control the quality and fatigue life of a component or part produced by machining process. Therefore, the magnitude and depth of the residual stresses into the workpiece sub-surface is important and necessary to be measured. The objective of this paper is to discuss various study on the effects of machining parameters on residual stress and residual stress measurement methods for machined workpiece namely non-destructive, semi-destructive and destructive methods. In addition, the effect of machining process into the metallurgical conditions of the workpiece in the form of microstructural changes is also discussed.

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Section: Residual Stress and Deformation Measurement Methodsmentioning

confidence: 99%

A Review on Measurement Methods for Machining Induced Residual Stress

Saptaji

Afiqah

Ramdan

2019

IJoCED

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“…The most common models of residual stresses formation in the surface layer during cutting are the following: mechanical and thermal [21,22].…”

Section: Introductionmentioning

confidence: 99%

“…The final stress distribution is characterised by compressive stresses σ 1 in the zone closer to the material surface, and tensile stresses σ 2 in the deeper zone. The mechanical model corresponds mainly to cutting [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…In a cold state, tensile stresses σ 1 occur in the proximal zone and compressive stresses σ 2 occur in the deeper zone. The thermal model is characteristic of abrasive machining and HSC [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…There is also a structural-volume model that results from the different specific volume of individual structural components of the material, and it plays an important role in the cutting of austenitic steels [21,22].…”

Section: Introductionmentioning

confidence: 99%

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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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