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Online since: October 2013
Authors: Yue Xian Song, Cheng Yong Wang, Rong Juan Wang, Li Juan Zheng
Abrasive jet technology is widely used with the advantages of environmental protection, with better energy concentration and processing quality, free from any tool passivation, heat affected zone, spark, or any changing in physical or chemical properties of workpiece.
There are many factors which influence the abrasive jet machining process.
One of the factors is coupling effect, which makes the abrasive jet erosion mechanism more complex and difficult.
However, the erosion process is complex, influenced by many factors, such as particle velocity, particle size, particle shape, the material properties of particle and workpiece and the workpiece itself morphology[23].
Luo: Fluid properties of micro-abrasive slurry jet and polishing mold steel.
Online since: December 2024
Authors: Venisse Nicole C. Perlado, Christine Joyce T. Gante, John Alec Mari C. Cosico, Carlo S. Emolaga, Jeremiah C. Millare
Fabrication and Characterization of Acetic Acid-Treated Salago Fiber-Epoxy Composite: Enhancing Mechanical and Thermal Properties Venisse Nicole C.
This study aims to improve the mechanical and thermal properties of salago fiber composites by treating the fibers with acetic acid and sodium hydroxide.
Impact strength is influenced by interface properties, mechanical reinforcement, and composite geometry.
Millare, Mechanical Properties and Thermal Analysis of Salago and Coir Hybrid Fiber Reinforced Epoxy Resin Composites, Key Eng.
Walter, Influence of alkali treatment on the mechanical properties of new cane fibre/polyester composites, J.
Online since: July 2014
Authors: Rui Fang, Ya Jun Li, Fa Chun Zhang, He Chen
The influences of microscopic heterogeneity on macroscopic mechanical properties and failure behaviors were investigated.
Heterogeneity is one of most important factors determining mechanical behaviors of rocks.
Luo et al. [4] carried out an investigation into relationship between macroscopic and mesoscopic mechanical properties of heterogeneous rock materials based on types and contents of minerals.
The effects of microscopic heterogeneity on macroscopic mechanical properties and failure processes were investigated.
The influences of microscopic heterogeneity on macroscopic mechanical properties and failure behaviors were investigated.
Online since: November 2025
Authors: Žaneta Dlouhá, Hana Jirková, Jiří Frank, Šárka Houdková, Josef Duliškovič
The results show that heat treatment has a significant effect on the properties of the coating.
However, this solution brings problems related to the negative effect of hydrogen on the mechanical properties of the pipeline material, such as the frequently used X52 steel [2].
Important parameters for successful Cold Spray coating application are temperature and pressure, deposition distance and nozzle design, which can affect the properties and adhesion of the coating.
The reduction of coating porosity also has a positive effect on the mechanical properties of the coating, corrosion resistance and resistance to hydrogen embrittlement [7, 9, 10].
The main factors that were evaluated for microstructures were coating thickness, porosity, and the presence of defects.
Online since: November 2012
Authors: Zhi Min Zhou, Xiao Yan Li, Yuan Xin Qu, Jian Na
R China azzmlxy888@yahoo.cn, bchinalndlzzm@163.com Keywords: Diamond Tools; Tool Wear; Titanium Alloys; Precision Machining; Ultrasonic Vibration Turning Abstract: Titanium alloys, as difficult-to-cut materials, have poor machinability due to their superior mechanical properties, heat resistance and corrosion resistance.
Introduction Titanium alloys are used widely in the aerospace, chemical and ship building industry because of their superior mechanical properties, heat resistance and corrosion resistance [1].Titanium alloys, however, are materials that are extremely difficult to machine [2].
Low thermal conductivity of titanium alloys retard the dissipation of heat generated, creating, instead a very high temperature at the tool–work piece interface and adversely affecting the tool life[3-4].To get a lower cutting temperature, various cooling methods were employed, such as steam/vapor cooling [5,6], cold air cooling [7–10], liquid nitrogen cooling [11], high pressure coolant jet [12], minimum quantity lubricant /near dry machining, etc [13].In order to maintain reasonable tool life, a high efficiency diamond tool ultrasonic vibration strategy was employed.Through titanium alloy turning experiments in this paper, we can draw the conclusion that effects of cutting parameters on tool wear in diamond tool ultrasonic vibration turning. 2.
However, there are many factors impact on the machining quality.
Online since: October 2010
Authors: Yuan Fang Chen, Jian Jun Hu, Hong Bin Xu, Chan Hao, Xiao Dong Peng
Using this technique can improve the surface properties of steel, prolong the service life of mold and reduce production cost [3-4].
Friction and wear properties were tested by the high-speed slippery piece wears away to experiment machine (MRH-3), Revolve speed 390 r/min,at loads 100N, times 100S.
The formation of amorphous materials provide high strength and toughness, and wear resistance and corrosion resistance are also significantly higher than that of ordinary steel, it also has excellent physical properties, chemical and mechanical properties[8].
This phenomenon is mainly due to several factors, first is the material structure after bombardment; In addition, crater morphology and region density; material cross- section hardness distribution and the experimental force size [9-10].
(a)COF (b)Amount of wear Fig.10 The tribological properties after treatment Corrosion resistance.
Online since: September 2013
Authors: Feng Cheng, Yu Hua Yao, Chun Ling Zeng, Jing Gao, Lu Wang
The properties of breathable, moisture permeability, moisture retention and good biocompatibility are also needed.
However, considering that the compatibility between the drug and the polymer, it is an important factor affecting drug release, Zeng[13] found that when the quantity of drugs increased, the stability of the ejection liquid and impact for the fiber formation would change.
In addition to gained biocompatibility, mechanical properties can't be ignored.
These results showed that the mechanical properties of the nanofiber membranes could handing for the wound healing process.
Firstly, solve materials preparation (parameters, homogeneous and stable core-shell structure).Secondly, the properties such as permeability, breathable, antibacterial, toxicity, mechanical properties.
Online since: September 2012
Authors: Wen Ge Chen, Ya Xin Xian
In practical production, there are many factors can affect the printing copy quality.
GCR color separation suit the original of dark tone is larger, mainly gray, auxiliary color, such as traditional Chinese painting, print, mechanical figure, etc.
Conclusions Color image color separation parameter settings, To consider the characteristics of the image and printing paper, ink, printing equipment and so on various factors.
And according to the properties of the original and late printing environment set different color separation parameter in the Photoshop, to achieve the best printing quality.
Online since: February 2014
Authors: Ping Liu, Kai Fu Zhang, Wan Li Li
In joining process the interference amount is an important factor, which affects ultimate strength and fatigue life of the mechanical structure.
Especially interference amount is an important factor, undersized interference amount may be difficult to form interference-fit for compressing not enough, that may lead loosening and dropping in service.
(3) So we can see when the hole wall come into the state of the plastic deformation, the radial displacement is an value changing with the initial radius and the material property.
Mechanical Science and Technology for Aerospace Engineering,2009,28(4): 514-516
Online since: August 2013
Authors: Pornsri Pakeyangkoon, Monreudee Dejsukdipol, Manit Nithitanakul
The mechanical properties and decomposition temperatures (Td) increased with increasing filler content from 0 to 10 wt%.
A lot of effort was invested to determine the factors which affect the cellular structure and cell size of the resulting porous polymers and in 1997, Cameron and co-worker [4] have described the production of polyHIPE materials with high internal surface areas, employing methodologies similar to those used in porous polymer bead preparation.
Thermal behavior and mechanical properties of poly(DVB)polyHIPE foam filled with different amount of M-PSO (wt%).
Mechanical properties of poly(DVB)polyHIPEs, prepared from different amount of M-PSO content, were carried out.
The chemical composition, the structure of the M-PSO influenced the mechanical and thermal properties of the poly(DVB)polyHIPE foam.
Showing 8911 to 8920 of 26166 items