Search results

The fabric handle mainly depends on its basic physical and mechanical properties, especially the initial low-stress region of those properties.
The compression property of fabrics is one of the basic physical and mechanical properties, closely related to fabric handle, softness and fullness.
Dominique Dupuis’s study demonstrated that interlacing is the major factor that influences the compression properties of fabric not the fiber arrangement, based on the KES system [11].
Therefore, the fabrics’ behaviors significantly affect the compression properties of all indices.
Ghosh, Online measurement of fabric mechanical properties: compressional behavior.

As produced, the three factors of parameters were found statistically significant.
Conclusion This experiment and tests of three factors of parameters i.e. speed of spindle, depth of tool, and time of dwell have been assessed through fatigue testing and analysis of mode of failure in order to see significant contribution to the mechanical property of the joint of AA5052-H112 sheets.
Zou, “Effect of welding parameters on microstructure and mechanical properties of friction stir spot welded 5052 aluminum alloy,” Mater.
Muhayat, Triyono, “Effect of Tool Plunge Depth and Pin Profile on Mechanical Properties of Friction Stir Spot Welded AA5052 Joints,” in ICAME, 2017
Gianluca Buffa, Pierluigi Fanelli Livan Fratinia, “Influence of joint geometry on micro and macro mechanical properties of friction stir spot welded joints,” Procedia Eng., vol. 81, no. 2, pp. 2086–2091, 2014

A Study of Surface Hardness Affecting in Electrical Discharge Machining on AISI P20 Plastic Mould Steel Pichai Janmanee a*, Kamonpong Jamkamonb, Teerayut Kanchanasangtongc and Apiwat Muttamarad a,b,cDepartment of Industrial Engineering, Rajamangala University of Technology of Technology Krungthep, Sathorn Bangkok 10120, Thailand cDepartment of Industrial Engineering, Thammasat University, Klongluang Pathumthani 12120,Thailand apichai.j@rmutk.ac.th, bnotsmart90@gmail.com, cteerayut.k@rmutk.ac.th, dmapiwat@engr.ac.th Keywords: EDM, Surface hardness, Anneal, AISI P20, MRR Abstract.
The lower layer is the level of the effect from the heat conductivity called Heat Affected Zone (HAZ).
The bottom layer (Base Materials) is the area that will not be affected by the machining process.
Test the hardness method Table 1: Essential of properties plastic mould steel AISI P20 Physical properties Temperature: 20°C Density (Kg/m³) 7800 Thermal conductivity (J/m.s °C) 29.0 Specific heat (J/kg °C)  460 Modulus of elasticity (N/mm²) 205000  Table 2 : Experiment conditions Working conditions: Copper electrode Descriptions Polarity electrode + Open circurit voltage (V) 150 Current (A) 3, 6, 9, 12, 15, 18 Duty Factor (%) ( Fix off-time, 32µs) 6, 24, 39, 50, 61, 76, 89, 94 Duty Factor (%) ( Fix on-time, 32µs) 6, 24, 39, 50, 61, 76, 89, 94 Working time (Sec) 0.5 Jump time (Sec) 0.6 Dielectric (Hydrocarbon) Fluid oil Shell 2A The experimental on-time duty factor variable was carried out to show the effect of EDM process on the changes of the surface hardness of the plastic mould steel AISI P20 by adjusting the off-Time duty factor and on-time was fixed at the 32 µs.
Moreover, the performance of any electrical discharge machining operation greatly depends on the thermophysical properties of the electrode material, although the non-thermal properties (electrodynamical and mechanical effects) are not negligible [7-9].

For the researched stone, basic physical, mechanical, hygric and thermal properties are measured.
Hygric properties.
Thermal properties.
Mechanical properties.
The limited mechanical resistivity together with the high total open porosity could be highlighted as the dominant factors affecting the durability of the researched historical masonry.

In order to investigate the influence of MA conditions on the microstructure and thermoelectric properties, MA synthesis were carried out under various conditions with different milling times.
The purpose of the present study was to synthesize nano-grained CoSb3 by MA-SPS method and to investigate the relationship between MA process and thermoelectric properties.
The thermoelectric properties were investigated by the measuring the Seebeck coefficient and electrical resistivity using the ZEM-2 system.
The difference in electric transport properties was possible caused by the volatilization of some Sb element during the SPS process at the high temperature.
The thermoelectric properties of the SPSed samples were greatly affected by the status of MAed powders, especially the phase structure and particle size.

In this study, some mechanical properties of Al/Al3Zr FGMs were investigated.
The Compression tests were also performed for further investigation of the mechanical properties.
The result is a microstructure that produces continuously or discretely changing thermal and mechanical properties at the macroscopic scale [1,2].
Based on that, the compositional and structural gradients in FGMs are expected to affect their mechanical properties.
Mechanical Properties of Al/Al3Zr FGMs Hardness Distribution.

Foamer Influence on the Foam Concrete Properties Obtained in the High-Speed Foam Generator N.A.
The physical and mechanical properties of the non-autoclaved aerated concrete produced with investigated foams are defined.
The non-autoclaved aerated concrete samples with physical and mechanical properties allowing its use in production are produced.
Air-entraining surfactant species play an important role in providing with required properties of foam concrete mix and non-autoclave foam concretes.
The index of surfactant species foaming capacity and foam properties depend on materials nature, their concentration, temperature, medium pH value, mixing intensity, air entrainment apparatus, and other factors [5, 6].

The low density and better mechanical properties enable its applications in industries over conventional engineering materials.
The composition and the mechanical properties are shown in tables 1 and 2, respectively.
Mechanical properties of 7020 alumium [1].
"Mechanical properties of 5083, 5059 and 7020 aluminum alloys and their joints welded by MIG." 
"Effect of annealing on microstructure and mechanical properties of Al 6061 alloy processed by cryorolling."

As is well known, the wear performance of a material can be influenced by many factors.
For example, microstructure, mechanical properties, test applied load, abrasive particle size, wear distance and impact energy, etc.
Among these factors, the microstructure and nature of the material are extremely important.
Effect of microstructure and mechanical properties on abrasive wear is different when the materials exposed to different wear condition [6-8].
Heat treatments and mechanical properties of the test steels No.

However, its welded heat-affected zone, HAZ, substantially affecting the strength of a welded joint, will be easily softened after welding.
Introduction Ultra-fine grained steel (UFGS) with an average grain size of less than 1µm has been developed [1] and is expected to demonstrate superior properties in strength, low temperature toughness, corrosion resistance, and fatigue strength [2].
Additionally, another criterion of the softening mechanism was evaluated through the mechanical properties, based on S-S curves shown in Fig.4 (b), prepared from both positions.
A possible explanation of this outcome was that the initial plate temperature was a primary factor in restraining temperature rising during welding.
Fig.8 Effect of initial plate temperature on the HAZ size on the HAZ size. 3.3 Mechanical Properties Fig.9 illustrates the effect of liquid nitrogen cooling on Vickers hardness distribution around the weld bead.