Results 51 to 60 of about 69,255 (297)
A stochastic model for drilling optimization
Mathematical and Computer Modelling, 1999 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Yang, Chen, G.
openaire +1 more source
Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions
Advanced Engineering Materials, EarlyView.This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel +6 more
wiley +1 more source
Optimization Design of Horizontal Well Track Using Seismic Interpretation Data
Shiyou jixie, 2016 In conventional track optimization methods,the minimum drilling footage (track length) is used as the core objective function to realize the fastest drilling with the lowest cost.It is hard to achieve the optimization goal without considering spatial ...
Geng Zhi +4 more
doaj
Development of Automatic Electric Drive Drilling System for Core Drilling
Applied Sciences, 2023 Core drilling has been widely used in mineral exploration with diamond-impregnated drilling technology. Automation is a critical technology in improving core drilling efficiency and reducing core drilling costs, but there is no complete automation that ...
Zheng Zhou +4 more
doaj +1 more source
Abrasive water jet drilling of advanced sustainable bio-fibre-reinforced polymer/hybrid composites : a comprehensive analysis of machining-induced damage responses [PDF]
, 2018 This paper aims at investigating the effects of variable traverse speeds on machining-induced damage of fibre-reinforced composites, using the abrasive water jet (AWJ) drilling.
A Alberdi +44 more
core +3 more sources
Advanced Engineering Materials, EarlyView.The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Study on Bottom Hole Assembly and Drilling Parameter Optimization for Reaming While Drilling
Shiyou jixie, 2021 Domestic studies on bottom hole assembly(BHA)and drilling parameter optimization for reaming while drilling(RWD)are lack of the calculation model which considers three influence factors(i.e., geometric configuration of pilot bit and reamer, formation ...
Zhang Jiawei +5 more
doaj
Optimisation of an ultrasonic drill horn for planetary subsurface sample retrieval [PDF]
, 2011 Ultrasonic tools can cut through foodstuffs, biological material and other soft matter with relative ease. However, when attempts are made to cut through harder material, the rate of progress markedly declines.
Harkness, Patrick, Lucas, Margaret
core
Advanced Engineering Materials, EarlyView.The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht +5 more
wiley +1 more source
MachinesAiming at the problem that drilling parameters are difficult to adjust in time for the driller due to the complex geological environment in underground coal mines, a drilling parameter control method based on online identification of drillability and ...
Jianbo Dai +6 more
doaj +1 more source