Results 1 to 10 of about 19 (17)

Research on Reducing Residual Stress in Milling of Aluminum Alloy [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The machining residual stress produced in the cutting process of aluminum alloy parts can easily lead to a scrap of the processed parts. In order to reduce the residual stress of aluminum alloy in the milling process, based on the Taguchi-Grey relational
Yao Huang   +6 more
doaj   +1 more source

Design and application of on-line monitoring system for borehole group in coal mine

open access: yesMeikuang Anquan, 2021
The online monitoring system of coal mine borehole group is designed, and the drilling group data processing software based on full data analysis method is developed.
WANG Xiaolong, ZHAO Liang, ZHANG Jun
doaj   +1 more source

Hole Depth Prediction in a Femtosecond Laser Drilling Process Using Deep Learning

open access: yesMicromachines, 2023
In high-aspect ratio laser drilling, many laser and optical parameters can be controlled, including the high-laser beam fluence and number of drilling process cycles.
Dong-Wook Lim   +5 more
doaj   +1 more source

Comparative Multi-Modal, Multi-Scale Residual Stress Evaluation in SLM 3D-Printed Al-Si-Mg Alloy (RS-300) Parts

open access: yesMetals, 2021
SLM additive manufacturing has demonstrated great potential for aerospace applications when structural elements of individual design and/or complex shape need to be promptly supplied.
Eugene S. Statnik   +11 more
doaj   +1 more source

A Comparative Study of Residual Stress and Mechanical Properties for FSW and TIG Weld on Structural Steel [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
Mechanical properties and residual stresses of friction stir welded and autogenous tungsten inert gas welded structural steel butt welds have been studied.
P.K. Chaurasia   +2 more
doaj   +1 more source

Mechanism and technical system of ground and underground combined drainage of CBM in “four region linkage” in coal mining area

open access: yesMeitan kexue jishu, 2022
In order to better realize the safe and efficient coordinated development of coal and CBM resources in high gassy mining areas, the four regions (planning region, preparation region, production region and coal mined-out region) linkage ground-underground
Guofu LI   +4 more
doaj   +1 more source

Residual stress determination by blind hole drilling and local displacement mapping in aluminium alloy aerospace components

open access: yesFracture and Structural Integrity
The determination of residual stresses by combining blind hole drilling and optical interferometric measurement of relief deformation is re-visited to evaluate its applicability to aerospace structures.
Sviatoslav Eleonsky   +4 more
doaj   +5 more sources

Estimation formula for residual stress from the blind-hole drilling method

open access: yesAdvances in Mechanical Engineering, 2018
In this study, the accuracy of blind-hole method on weld residual stress estimation is investigated. A modified parameter group has also proposed to improve the accuracy.
Chi-Liang Kung   +3 more
doaj   +1 more source

Quality control method of blind via hole based on monitoring Cu direct laser processing in high heat radiation printed circuit board with a high speed camera

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Recently, printed circuit boards (PCBs) have become multi-layered and complex. It is to provide both multiple functions and to be compact with the development of electronic device such as smartphones.
Toshiki HIROGAKI   +4 more
doaj   +1 more source

Model Residual Stress by Finite Element Method

open access: yesITM Web of Conferences, 2018
This paper presents an original model developed by finite element method to simulate the behavior of the material to the method “Blind Hole Drilling”, to determine the residual stress. Modeling of this method is possible through the use of the “Birth and
Garleanu Delia   +3 more
doaj   +1 more source

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