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The recovery heat treatment after the hot isostatic pressing can further improve the microstructure and mechanical properties of the material.
Among them, laser cladding technology is used to stack powder or wire layer by layer in the area to be repaired, and the geometric dimension and mechanical properties of the parts can be restored without damaging the performance of the parts.
Wang et al. [6] of the plasma Dynamics Laboratory of Air Force Engineering University studied the effects of laser repair and plasma arc repair on the microstructure and mechanical properties.
Fig. 5 Heating stage of plasma spraying process Although the superalloy has good thermal stability and high thermal strength, it often has defects such as crack, burn and tissue degradation due to the influence of many factors in the application process.
High-throughput fabrication of nickel-based alloys with different Nb contents via a dual-feed additive manufacturing system: Effect of Nb content on microstructural and mechanical properties[J].

The performance of spindle system of machine tools directly affects the characters of machine tools.
The static and dynamic stiffness of spindle system is one of the main factors that affect the machining precision of machine tools and the performance analysis of spindle system occupies an important position in the design of machine tools.
Since the products of NC machine tools are developing toward high precision, high rigidity and high speed and the demand on the dynamics properties of spindle system is becoming high increasingly, the research on statics and dynamics properties and structure optimization for the spindle system becomes more and more important.
In this study, SSCK63-400-typed NC machine lathe developed by Shenyang machine tools co., ltd is selected as the research object, the finite element method is used to analyze the statics and dynamics properties of spindle system, the weaknesses of existing design is investigated and the optimization design method is used to optimize the structures of spindle component so as to improve the properties and design level of NC machine tools.
Before solving, data check should be taken including unification of units, unit types and options, parameters of material properties.

Investigation of synchronization properties of PM machines with fractional slot concentrated windings Georgy B.
The present work investigates the effect of three parameters (load torque, the total moment of inertia of the motor loaded and the moment (phase) of power-up) on the synchronization properties of the machine.
The key factors for self-start of the machine are the moment of inertia of the system "motor- load", the moment of mechanical resistance and the moment of power-up.
In other words, the mechanical torque on the motor shaft is described by the function Mω=β∙ω2 (2) The coefficient β ranged from 4·10-4 to 3·10-3 Nм·s2, that corresponds to the parameters of commercial fan wheels designed for ventilation.
The design of the motor has a potential for reducing the moment of inertia that can positively affect the self-starting possibilities.

Introduction Laser cladding is rapid physical metallurgy process which the different compositions and properties of the alloy are melted on the surface of substrate by the high-energy laser beams.
Fig.1 Finite element mesh model Fig.2 Variation of coatings material properties with temperature 2.2 Assumptions The molten pool with flow and heat transfer process is greatly complex, and it has many influence factors.
（3） Where P is power, η is Material absorption to laser energy, q (x, y, z, t) is heat flow for t time of (x, y, z) position, r is source concentration coefficient, ν is scanning speed, τ is lag time factors of power position.
Table 1 Process parameter of laser cladding Power [W] Scanning Velocity [mm/s] Spot Size [mm] 2000 3,4,5 5 2.4 Thermal properties of Co-based alloy Co base alloy material thermo-physical parameter is reference to similar composition alloy, and according to influence of elements, Co base alloy material thermal physical properties versus temperature curve are obtained by fitting.
Thermal-mechanical Coupling Finite Element Analysis of Temperature Field in Laser Cladding Process[J].

In contrast, stainless steel screens have many advantages such as precise punching size, excellent mechanical properties, and good corrosion resistance.
(3) Determination of mechanical properties.
Analysis and Discussion of Experimental Results Effect of Solution Treatment on Mechanical Properties of 20LH5 Stainless Steel.
Table 3 shows the effect of solution treatment under water cooling conditions on the mechanical properties of 20LH5 stainless steel sheets.
Thus, the precipitates will damage the bonding between grains, which has adverse effects on the mechanical properties of the material.

However, keep in mind that the oxidation stability of biodiesel is affected by various factors, such as alkyl ester composition, the presence of antioxidants, and storage conditions [28].
However, there are other factors such as unsaturated fatty acid content that also need to be considered.
Rahill, “Alternative Fuels Data Center Fuel Properties Comparison.”
Kumaresan, “Effects of the properties and the structural configurations of fatty acid methyl esters on the properties of biodiesel fuel: A review,” Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, vol. 229, no. 3.
Yunus, “Factors Affecting the Cold Flow Behaviour of Biodiesel and Methods for Improvement-A Review Dielectrophoretic Separation and Sensor View project Development of technology for producing slow release urea View project.”

Exit burr strongly affect product quality during assembly and it is difficult to remove them easily.
Materials and Methods In the present work Al6061 alloy is used as the matrix material for the fabrication of Al6061/SiCp composite, which. possesses superior mechanical properties and low cost.
Physical and mechanical properties of the developed Al6061/SiCp composite depend on the microstructure, distribution of SiCp and its bonding with the matrix material.
Ø Increase in feed increases Fz and Bh in drilling Al6061 and Al6061/SiCp composite due to the hardness and ductility properties.
References [1] Gillespie, L.K. and Blotter, P.T., The formation and properties of machining burrs, Transactions of ASME, Journal of Engineering for Industry, Vol. 98, 1976,pp.66–74

The result indicated that the thermal expansion coefficient was the primary factor which could affect the tensile stress of ceramic extrusion die.
The ceramics especially the high-performance nano-ceramic[1,2] have high hardness, good abrasion resistance, high chemical stability and high temperature mechanical properties[3] etc and have already widely applied in the die material manufacture now.
As the flexural strength of ZrO2/TiB2/Al2O3 ceramic mould materail is 1055Mpa, its admissible stress is only 300Mpa while the safty factor is 3.5[6].
References [1] Lian Gao, Wei Li, Nano Ceramics, Beijing: Chemical Industry Press, 2002(In Chinese) [2] Dongtao Jiang, Omer Van der Biest, and Jef Vleugels, ZrO2-WC Nanocomposites with Superior Properties.
Rare Metal Materials And Engineering, Vol 36, p.770-773, 2007(In Chinese) [4] Richerson D W, Modern Ceramic Engineering, Properties, Processing and Use in Design, New York: Marcel dekker publication Inc, 1992 [5] Zuoqian Cai, Lian Wang, and Gen Yang, Ceramic Material.

Investigation Of Acicular Ferrite Structure And Properties Of C-Mn-Al-Ti-N Steels O.
This can be harmful to mechanical properties for cleavage cracks can propagate readily across the packets [1].
Compare properties of acicular ferrite obtained in a C-Mn-Al-Ti-N steel with properties of other steels with similar alloying system.
Formation of thin layer of inert allotriomorphic ferrite on the austenite grain surfaces leads to decreasing of mechanical properties since cracks can propagate easily through allotriomorphic ferrite network.
b) Mechanical properties The results of the tensile tests are given in Table 2.

The results of the experiment show that: in the warm tension tests of the dual-phase steel, both the dynamic recovery and dynamic recrystallization affect the grain size, and the influence of dynamic recrystallization is stronger.
So the grain size is one of the important factors which can affect deformation.
Conclusion The following conclusions may be drawn: (1) In the dual-phase steel warm tension tests, both dynamic recovery and dynamic recrystallization affect the grain size, and the influence of dynamic recrystallization is stronger
The physical and mechanical metallurgy properties of dual-phase steel (Version 2) [M].
Journal of Mechanical Engineering, 2009, 45 (4): 183-186