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Table 1 Fiber laser welding conditions Laser power 10 kW Welding speed 2.5m/min Shielding gas Ar High speed camera Frame rate 1000f/s, Pixel´pixel=512´500 High speed camera filter wave length l 960-990nm Mount angle of camera 150 Image resolution 11.4 pixel/0.1mm Welding materials Stainless steel(Type304) Welding material dimensions (L´W´D mm) 150´49´10 Welding types Butt welding Seam gap 0-0.1mm Image Smoothing.
Acknowledgements This work was partly supported by the National Natural Science Foundation of China (51175095), the Natural Science Foundation of Guangdong Province of China (10251009001000001, 9151009001000020) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (20104420110001).
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But the actual shop scheduling problem is even more complicated with a large number of scheduling related issues such as materials arrival, equipments breakdown and urgent orders and etc, and they all occur randomly.
Mansour, Dynamic flexible job shop scheduling with alternative process plans: An agent-based approach, International Journal Of Advanced Manufacturing Technology Vol. 54 (2011), p. 1091-1107
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The material of magnet is NdFe35.
Table 1 lists the dimension and material property parameters of the system.
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The model adopts Coulomb Mohr yield criterion, namely, （5） 　　　　　　　　　　　　　　　　　　　　（6） Where, , is respectively maximum and minimum principal stress; is cohesive force of the materials; is friction Angle; is tensile strength; When = 0, the material will occur shear failure; when , then the material produce tensile failure.
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Optimization of processing conditions on the yield of nano SiC powder from rice husk *N.Kavitha1,2,a, M.Balasubramanian2,b and Y.Deval Vashistha3,c 1 Carborundum universal limited, P.Box.No. 2272, Thiruvotriyur, Chennai,Tamilnadu, India-600019 2 Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, Tamilnadu, India-600036 3 Carborundum universal limited, P.Box.No. 2272, Thiruvotriyur, Chennai,Tamilnadu, India-600019 Kavithan@cumi.murugappa.coma, mbala@iitm.ac.inb, Vashisthady@cumi.murugappa.comc Corresponding author: N.Kavitha, kavithan@cumi.murugappa.com, 09003239241 Key words: Silicon carbide (SiC), rice husk, Taguchi design, nanoparticles Abstract: Nanoparticles of silicon carbide were produced through direct pyrolysis of stoichiometerically balanced rice husk.
In terms of hardness, SiC has morhs hardness of 9, which compares favorably with values for other hard materials, such as diamond (10) and topaz (8).
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In the paper, firstly self-consistent model (SCM) is used for establishing the predicted formula which can predict the effective permittivity of the composite materials with core-shell type inclusions.
Introduction There are two kinds of typical absorbing wave materials: One is the metal iron particle [1] which has strong ability to absorb high frequency electromagnetic wave, but it has higher density and it is easier to oxidize than other materials.
How can we make use of two materials' merits to synthesize a new absorbing wave material which has excellent absorbing wave capacity in all bands, better oxidation resistant and appropriate density?
Giordano: Journal of Electrostatics Vol. 58 (2003), p. 59
Cheng: Journal of Dalian University of Technology (in Chinese), Vol. 34 (1994), p.138

Therefore, the foregoing model can be used for determining the tool life of various materials, and at the same time, both the creep resistance and strength property should be taken into account when selecting the tool materials.
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Introduction The cellular materials are efficient in energy absorption due to its high stiffness to weight ratio.
These materials are used in the form of voids to reduce the overall weight.
Honeycomb cores are categorized as the two dimensional cellular materials due to the variation in only two directions.
Mirza, Experimental investigation of in-plane and out-of-plane crushing of aluminum honeycomb, Materials Science and Engineering A 539 (2012) pp 135–142
Qiao, Quasi-static crushing behavior of aluminum honeycomb materials, Journal of Sandwich Structures and Materials 10 (2008) pp 133–160