Results 111 to 120 of about 413,997 (308)

Production of MgO/TiC Composites From MgO‐C Recyclates Using Spark Plasma Sintering

Advanced Engineering Materials, EarlyView.
Using the spark plasma sintering technique, MgO/TiC composites are manufactured from recycled MgO‐C refractories stemming from the steel production that were mixed with titanium powder. This article shows, how the size of the Ti grains and their distribution in the powder mixture affect the local carbon concentration in TiC.
Jiayan Yu, Christian Schimpf, Stefan Martin, David Rafaja   +3 more
wiley   +1 more source

Comparative Analysis of Emulsion, Cutting Oil, and Synthetic Oil-Free Fluids on Machining Temperatures and Performance in Side Milling of Ti-6Al-4V

Lubricants
During machining, most of the mechanical energy is converted into heat. A substantial part of this heat is transferred to the cutting tool, causing a rapid rise in tool temperature. Excessive thermal loads accelerate tool wear and lead to displacement of
Hui Liu, Markus Meurer, Thomas Bergs
doaj   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Mechanism Analysis of Multi-Stage Fracturing Ball Seat Drilling and Milling in Tight Reservoirs

Shiyou jixie, 2019
At present, the drilling and milling process of multi-stage fracturing ball seats in tight reservoirs has problems such as low work efficiency, high failure rate and short service life.
张全胜, 王旱祥, 吕玮, 贾晨曦, 李玉宝, 车家琪, 李娜   +6 more
doaj  

Multi-Response Optimization of Milling Parameters of AISI D2 Steel Using Response Surface Methodology and Desirability Function

Journal of Manufacturing and Materials Processing
This study investigates multi-objective optimization of end-milling parameters for AISI D2 cold-worked tool steel using GC1130-coated carbide inserts under wet machining, focusing on cutting speed and feed rate per tooth values beyond manufacturer ...
Luis W. Hernández, Yassmin Seid Ahmed, Dagnier A. Curra, Roberto Pérez   +3 more
doaj   +1 more source

Effect of Varying Parboiling Conditions on Head Rice Yield for Common Paddy Varieties in Iran

Acta Technologica Agriculturae, 2018
Various conditions of a parboiling process affect the qualitative parameters of paddy milling. In this study, the effects of drying temperature (45 and 60 °C), moisture content (8, 10 and 12% w.b.), steaming time (10, 20 and 30 min) and paddy varieties ...
Rahimi-Ajdadi Fatemeh, Asli-Ardeh Ezzatollah Askari, Ahmadi-Ara Adel   +2 more
doaj   +1 more source

Optimization of 5-Axis milling processes based on the process models with application to airfoil machining [PDF]

, 2007
5-axis milling is widely used in machining of complex surfaces such as airfoils. Improper selection of machining parameters may cause low productivity and undesired results during machining.
Budak, Erhan, Tunc, Taner
core  

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

STUDY ON ULTRASONIC VIBRATION MILLING FORCE OF OPTICAL GLASS MATERIAL

Jixie qiangdu, 2018
In view of the problems such as low efficiency and surface cracks in optical glass processing,the experiment studied the influence of cutting parameters and acoustic parameters on milling forces and established a milling force model of optical glass ...
ZHAO Jie, FU ZongXia
doaj  

Machinability Evaluation of PM Vanadis 4 Extra Steel Under Varying Milling Conditions

Applied Sciences
Powder metallurgy tool steels, such as Vanadis 4 Extra (1.2210), are increasingly used in cold-work applications due to their superior hardness, wear resistance, and microstructural uniformity.
Jarosław Tymczyszyn, Artur Szajna, Anna Bazan, Grażyna Mrówka-Nowotnik   +3 more
doaj   +1 more source