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Online since: October 2018
Authors: Andrey N. Anikeev, V.V. Seduhin, I.V. Chumanov
The method obtaining local wear-resistant elements based on carbides, their introduction into the gasified casting, as well as the study the structure and properties the materials obtained are described in this article.
In this case, the phenomenon wettability of dispersed particles by a metallic melt is an inherent factor [6-8].
Cutting the castings was carried out to study the microstructure and mechanical properties.
This fact allows us to conclude that the method by which sample No. 1 was obtained is effective to create a gradient of properties in the local regions metal.
Jones: Grain boundaries: Their Character, Characterisation and Influence on Properties (Institute of Materials.
Online since: January 2013
Authors: Juan Li
Research on integrated quality architectureof remanufacturing industry for CQI Juan Li School of Mechanical Engineering, Xi' an University Of Science and Technology, Xi'an, China e-mail: juanlizi@163.com Keywords: Continuous quality improvement; Quality information; Bill of material.
Introduction With the continuous development of remanufacturing, remanufacturing product quality become an important factor constrained survival and development of remanufacturing industry, which has a direct impact on product sales and operating efficiency of remanufacturing industry.
Classification And Organization Of Quality Information In The Remanufacturing Industry Process quality is an important factor affecting the quality of products, so the quality information of the remanufacturing industry includes product quality information and process quality information, which insisted of the quality standards information and the quality assessment information[4].
The module rolls in providing a clear remanufacturing product structure, and building up association with remanufacturing process management module. 2)Remanufacturing process management module includes all process information of affecting the final remanufacturing product quality.
Through effect factors analysis and comparison of the remanufacturing product quality, you can find the key processes; key influencing factors and the optimal level combination by fully use of fishbone diagrams, Pareto, and multivariate analysis tools, in accordance with this combination, so as to achieve the stability improvement of product quality[8]. 3)Quality tool integration module provides a variety of quality tools to support process improvement.
Online since: October 2016
Authors: M. Fakkir Mohamed, B. Praveen Kumar, P.L. Madhavan, M. Pradeep
Effect of Process Parameters on Performance Measures in CNC Turning Using One Factor at a Time Approach for SS304 M.
Storage tanks and tankers accustomed transport fruit crush and alternative food are usually product of stainless-steel, due to its corrosion resistance and antibacterial drug properties.
Titanium nitride TIN generally called “Tinite” or “TiNite” or “TiN”.It is a very exhausting ceramic material, typically used as a coating for metallic element alloys, steel, carbide, and metallic element components to enhance the surface properties of substrates.
No Speed(rpm) Feed(mm/rev) Depth of cut(mm) SR (µm) MRR (mm3/min) 1 3 1 1 3.199 10760.86 2 3 1 2 3.432 20625 3 3 1 3 3.626 29117.64 4 3 2 1 5.243 12692.30 5 3 2 2 5.396 24750 6 3 2 3 5.660 35357.14 7 3 3 1 7.771 14558.82 8 3 3 2 8.361 30937.5 9 3 3 3 8.597 41250 3.2 Grey Relational Analysis 3.2.1 Multi-Response Model Using GRA The relationship between the assorted factors (Material Removal Rate, Tool Feed Rate, Surface Roughness etc.), is form of unclear.
Ø Feed was found to be the most influencing factor in CNC turning process followed by Speed and Depth of Cut.
Online since: June 2012
Authors: Yan Wei Zhao, Jun Wei Li, Huan Wang, Zhi Sheng Yu
The stability problem of eccentric rotor in high-speed cutting process is the main factor affecting the performance of cutter transmission system.
The complete modal information is given that provides a theoretical basis to better understanding the dynamic properties of eccentric rotor and provides the basic parameters for dynamic performance optimization and dynamic balancing analysis of cutter transmission system.
What’s more, this paper provides a theoretical basis for the better understanding of the eccentric rotor’s dynamic properties.  
Mechanical Science and Technology for Aero space Engineering.28(1) (2009)1-4
Online since: April 2014
Authors: In Hwan Yeo, Jae Hong An, Kyu Jae Hwang, Jong Ho Lee
Thermal properties of steel materials and concrete as per temperature rise are shown as in Figure 1 and 2.
Thermal properties of Steel (Specific Heat, Conductivity, Density) In particular, cross-sectional loss caused by temperature raise of concrete members exposed to fire was evaluated using strength expected by means of effective cross-section at the target time through heat transfer analysis of members considering thermal properties of materials.
Elements of heat transfer applied in concrete, main steel and stirrup modeling are DC3D8 and DC1D2, which are factors of linear heat transfer analysis and also element of materials.
Figure 2.Thermal properties of Concrete (Specific Heat, Conductivity) Figure 3.
It was measured through the experiment on cross-sectional size, one of main factors that affects fire resistance of RC columns.
Online since: July 2011
Authors: Carsten Siemers, Karel Saksl, Pawel Rokicki, Zdeněk Spotz, Lenka Fusova
Nickel-base superalloys like Alloy 625 are widely used in power generation applications due to their unique properties especially at elevated temperatures.
The cutting speed represents one of the most important factors that have influences on the tool life.
Specific wear features appeared depending on the mechanical and thermal conditions generated in the wear zones.
It affects the quality of the components, tool life and machining costs.
Online since: July 2008
Authors: Norio Kawagoishi, Y. Sofuku, M. Adachi, K. Okutani, Y. Maeda
Fatigue properties of a squeeze cast Al-Si-Mg alloy were examined under rotating bending and the effect of humidity on the crack initiation and propagation behavior was investigated in controlled humidity.
Moreover, aluminum die casting technology has been dramatically improved to produce high-quality castings, among which squeeze casting can achieve superb mechanical properties, derived from its capability to suppress porosity and refine microstructure [1, 2].
In the present study, fatigue properties for squeeze cast Al alloy, Al-Si-Mg alloy were examined under rotating bending and the effect of humidity on the crack initiation and propagation behavior was investigated in controlled humidity.
The mechanical properties of the alloy were 0.2% proof stress of 219.9MPa, tensile strength of 310.5MPa and reduction of area of 15.2%, respectively.
zigzag manner being affected by microstructures like a eutectic Si, segregated Si particles, grain!
Online since: March 2015
Authors: Daniela G. Petre, Izabela Cristina Stancu, Horia Emil Cioflan, Bogdan Mastalier-Manolescu, Marius Petrutescu, Eugeniu Vasile, Lavinia Moraru, Andrada Serafim
Also, their mechanical and rheological properties were evaluated.
RS %=wt-w0wmax-w0x 100 (3) Mechanical properties.
Rheological properties.
Fig. 5: MSD (left) and EWC (right) for the synthesized bicomponent materials Mechanical properties.
The mechanical and rheological properties of the studied compositions are consistent with the data regarding the compositions’ water uptake capacity.
Online since: August 2004
Authors: Sang Soon Lee, Noh Yu Kim
The calculation of the zeros of Eq. 12 can be carried out numerically for given values of material properties.
Fig. 4(a) shows the variation of the order of the singularity with the real time for the material properties given by Eq. 7.
The stress singularity factor is normalized by the quantity h λ−1 , giving it stress unit, as follows: );,( lim 0 1 0 tr h r K ij r ij θσ θ λ = − →       = (15) Fig. 4(b) shows the variation of the stress singularity factors.
It is shown that the stress singularity factors are relaxed with time, while the order of the singularity increase with time.
(a) Variation of the order of the singularity ; (b) Variation of the stress singularity factors.
Online since: October 2012
Authors: Qing Hui Jiang, Rui Li Lu
Using the finite element method, Yu Jianlin[4] systemically analyzed several factors affected the maximum settlement in the soft soil foundation excavation.
According to the thinking of the soil loss theory, Jian Yanchun[6] studied the affecting factors of soft soil deformation, and obtained the calculation formula for ground settlement from lateral deformation of the support wall.
In the actual study, model test is so susceptible to size factors as to affect test results, in-situ test has a long test cycle, more difficult and high cost, while the numerical simulation analysis are relatively flexible, practical, effective and low cost.
Soil parameters determined in accordance with the relevant specifications and known material properties (see table 1).
Mechanical Industry Press, (2008)
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