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Online since: July 2008
Authors: Y.Q. Wang, Shi Chun Yang, Ming Rang Cao, Wen Hui Li, Sheng Qiang Yang
Li e College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan Shanxi 030024, P.
The relationships between MRR and these factors are also analyzed.
Therefore, the effects of non-electrical parameters such as thermophysical properties of workpiece material, liquid pressure, drilling depth and the tool rotation speed on MRR are discussed in detail.
Understanding and mastering these factors and rules help to provide theoretical guidance and reference for application of high-speed small hole EDM drilling.
Thermophysical properties of workpiece material used in this paper are listed in Table 2.
Online since: July 2015
Authors: Han Ju Park, Jae Kyoo Lim, Hee Yong Kang, Gin Ho Kim, Yong Gon Lee, Cheol Min Yang, Myung Goo Hwang
Evaluation of the mechanical properties of the injection specimens group was utilized by universal tensile strength tester.
So the injection molding method by thermoplastic resin composite material has a factor to decrease the mechanical properties [4].
We have also studied about the mechanical properties of the parent and weld specimens and fiber orientation distribution quantitatively along the length of the short carbon fibers dispersed within PC matrix.
Through injection molding, the entire process of the short carbon fibers is dispersed in the form of small particles, and this affects the mechanical properties. 2) In the mechanical performance of short carbon fiber reinforced composites material PC, short carbon fiber of 5mm, 7mm length has more advantage than 1mm, 3mm length. 3) Extrusion process of the carbon fibers in the molten resin has cut fibers very particle type by the shear force and the inter-fiber collision phenomenon.
This is an important factor in the improvement of mechanical properties in the part of anisotropy fusion in the flow front in cavity of mold.
Online since: July 2013
Authors: Zhe Nan Tang, Xiu Yun Du
The effects of various geometric parameters and thermal properties on the overall temperature have been analyzed.
Some work computed mechanical stress [3-4], electrical properties and reliability in structures.
Finite element simulations demonstrate that the presence of metal-filled TSVs influences thermal properties.
Since effects of BEOL and BCB are much significant to affect temperature distributions, two major parameters of material properties are selected as main factors to be analyzed, which are BEOL conductivity and BCB thickness.
Balasubramanian, et al, A study of thermo-mechanical stress and its impact on through-silicon vias, Journal of Micromechanics and Micro engineering. 18 (2008) 075018-075031
Online since: September 2014
Authors: Chun Fang Wang, Kai Kun Wang, Zhe Luo
One of the obstacles the thixo-extrusion has to overcome is lack of proof that can live up to the claim that thixo-extruded components have better mechanical properties.
This is one of the important factors why semi-solid processing has not be applied to the mass production.
The significant advantage of flexible thixo-extrusion forming technology is that the material is in the three-dimensional compressive stress state, the flow front is constrained by the sliding bricks and thus the final component has the better microstructure and mechanical properties compared with conventional extrusion processing in which the material owns a free flow front.
Furthermore, the factors such as temperature, strain rate are also concerned.
In the process of flexible thixo-extrusion, the flow front of the material is compressed by the sliding bricks which helps to improve the surface quality and the mechanical property of the final components.
Online since: August 2022
Authors: Gehad Genidy Mohamed, Sameh Hamed Ismail, Ahmed Roshdy Elsakhry, Mohamed Kamal Khalaf, Mostafa Abdel-Hamied
Moreover, most of the physical, chemical and biological deterioration factors lead to alteration in the physiochemical and mechanical properties of limestone and became fragile and weak [4].
Additionally, this process improves the properties of the damaged stones and gives them high stability to the surrounding environmental factors [2, 8, 9].
Measurement of physical properties 3.2.1.1.
Measurement of mechanical properties (Compressive strength test) Mechanical property measurements were critical in evaluating the materials utilized in the consolidation process [15, 21].
Ismail, Preference of using nano silica\magnetite core-shell on enhancement mechanical and morphological properties of cement mortar.
Online since: September 2019
Authors: Vera Popovich, Dmitriy V. Masaylo, Evgenii Borisov
In dispersion-hardened alloys, the leading role in strengthening is played by structural factors.
Next, study of mechanical properties in tensile tests was conducted.
"Microstructure and Mechanical Properties of Ti-6AL-4V Manufactured by SLM."
"Microstructure and mechanical properties of Inconel 718 produced by SLM and subsequent heat treatment."
"Anisotropy of mechanical properties of products manufactured using selective laser melting of powdered materials."
Online since: August 2019
Authors: S.Yu. Khashirova, Azamat A. Zhansitov, Azamat L. Slonov, Ismel V. Musov, Azamat A. Khashirov, L.K. Kuchmenova
Moreover, their introduction improves the elastic-strength properties of carbon fibres-filled PEI.
When processing by injection molding, this leads to underfilling and defectiveness of products, and during processing by 3D printing (FDM) – to poor adhesion of the threads in the sample and, consequently, to low physical and mechanical properties [3].
PEI is one of the representatives of superstructure polymers with high thermal and mechanical properties [7].
It should be noted that various random factors can influence the temperature of loss of 2 % of mass, and they are not always regular, as opposed to temperature loss of 5 and 10 % of mass, which are more correct indicators of destruction.
Thus, we can conclude that the use of OPSU as a plasticizer allows us to obtain a composite with the most thermostable melt and high mechanical properties.
Online since: January 2014
Authors: Warjito Warjito, Indra Pranata Al Kautsar
There are many factors that is affecting flotation process.
Reagent is an important factor in a flotation process.
It reduces surface tension so that it affects the bubble size as well.
[8] Lee J.E., Choi W.S., Lee J.K., A Study of the Bubble Properties in the Column Flotation System, Korean J.
[9] Lawskoski J.S., Melo N.S., Fundamental Properties of Flotation Frothers and Their Effect on Flotation, Korean J.
Online since: October 2010
Authors: Anastasios Sextos, Kosmas Athanasios Stylianidis, Konstantinos Mykoniou
Keywords: Byzantine walls, spatial variability of earthquake ground motion, angle of incidence of seismic waves, mechanical property Introduction This paper aims to investigate the relation between the dynamic response of a 150m long, irregular in plan Byzantine Walls complex (Fig. 1) located in the city of Thessaloniki in Greece and the direction of propagation of the incoming earthquake motion, taking into account the influence of the spatially variable nature of the incident seismic waves and the inherent uncertaintly of the mechanical properties of the structure.
Mechanical Properties of the Walls The construction materials of the Wall under study vary substantially along both its length and its various sections since the latter consist of alternate layers of stones and external bricks at both facades, filled with rubbles.
In order to obtain a statistical estimate of the variation of material properties, a series of non-destructive tests were performed in situ leading to the assessment of the compressive strength of the (weaker and hence more ctitical) intermediate mortar layer.
Herein, from the above three factors of the asynchronous ground motion, only the first was explicitly taken into consideration.
At the same time for a given, constant angle of seismic waves incidence, the reduction of maximum in time stresses when adopting the softer material properties (i.e.
Online since: July 2021
Authors: Mikhail N. Roshchin, Janusz Gladyszewski, Valeriy Alisin
In work [2] investigated the tribotechnical properties of manganese phosphate covers on the steel surface.
It has been shown that the best percentage of molten surface for reducing wear rate is 46%, while the track angle is not considered as a major factor affecting wear rate.
Work [7] is devoted to the study of the tribological properties of laser infused composite covers NiCrBSi / WC.
The experience of re-infusion the WC - Co covers with a laser and the results of tribological properties studying are presented in [8].
To obtain optimum mechanical properties of the deposited cover, knowledge of the temperature fields in the cover is required.
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