Effect of process parameters of Plain Water Jet on the cleaning quality, surface and material integrity of Inconel 718 milled by Abrasive Water Jet - Archive ouverte HAL Access content directly
Journal Articles Tribology International Year : 2023

Effect of process parameters of Plain Water Jet on the cleaning quality, surface and material integrity of Inconel 718 milled by Abrasive Water Jet

(1) , (1) , (1) , (1) , (1) , (1) , (1)
1
Kamel Moussaoui
Sabine Le Roux
Mehdi Salem
Anis Hor

Abstract

Abrasive Water Jet (AWJ) is considered as a promising milling method for difficult-to-machine aeronautical materials as Inconel alloy 718 (IN718). However, grit embedment during AWJ is known as a detrimental effect on certain applications as aircraft repair, where surface condition may play an important role on additive material technologies. To overcome this problem, Plain Water Jet (PWJ) has been used in the present study as cleaning process and demonstrated to be an effective method to remove grit particles from the surface with marginal alterations of surface state. In this paper, firstly the influence of AWJ process parameters on abrasive embedment and surface texture on IN718 specimens milled by AWJ were addressed. Then these surfaces were subjected to PWJ cleaning process and were extensively characterized in terms of grit embedment, surface texture and roughness, erosion depth, microhardness and residual stresses. Before cleaning, the milled surfaces presented a grit embedment level varying between 7 % and 14 %. One setting condition was selected for performing PWJ cleaning which reduced the grit level up to a quarter of the initial total surface area (less than 4 % in all cleaned surfaces) without relatively modifying neither the surface texture nor the erosion depth. Comparable microhardness gradients were observed before and after PWJ cleaning which corresponded to ∼ 30 % higher than the bulk values at surface and then decreased beneath the surface up to 200 µm before to reach bulk value (∼ 245 HV). Compressive residual stress state at surface initially induced by AWJ milling in some surfaces remained unchanged after PWJ process but in other ones was slightly relieved (∼ 50 MPa). Residual stresses after PWJ process resulted from − 630 MPa to – 315 MPa depending on the milling process parameters.
Fichier principal
Vignette du fichier
Effect-of-process-parameters-of-Plain-Water-Jet-on-the-cleaning-quality.pdf (17.13 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03867517 , version 1 (24-11-2022)

Identifiers

Cite

Lorena Cano Salinas, Xavier Sourd, Kamel Moussaoui, Sabine Le Roux, Mehdi Salem, et al.. Effect of process parameters of Plain Water Jet on the cleaning quality, surface and material integrity of Inconel 718 milled by Abrasive Water Jet. Tribology International, 2023, 178 (Part B), pp.108094. ⟨10.1016/j.triboint.2022.108094⟩. ⟨hal-03867517⟩
0 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More