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Each of these parameters affects density, microstructure, residual stresses and consequently, the final mechanical properties of the parts.
Among these parameters, laser power stands out as the most influential factor on fusion quality, interface formation and the mechanical properties of bimetallic parts.
The mechanical properties of 316L stainless steel-copper.
Mechanical properties of 316L steel + percentage of Cu.
This evolution is strongly influenced by two key factors: the gradual distribution of materials in the transition zone and the nature of the variation in laser power.

The finite element analysis: transfer car frame 3D modeling into SolidWorks COSMOS Works environment, setting Material properties: Q235, Elastic modulus: E = 206, Poisson's ratio: µ = 0.3, Material density: ρ = 7850[3].Exert constraint conditions: at each end of machine beam's 200place set constraints to be fixed.
Safety factor result is shown in Fig. 7.
Fig. 7 Drive device's safety coefficient cloud Safety factor's finite element analysis results as follows: Observe safety factor cloud in the Fig. 7.
Minimum safety factor reach at 5.3, the safety factor of main rope hitch plate is 10.2, maximum the straightness of vice-rope hitch plate is 6.8.
Safety factor meet enterprise standards of safety coefficient requirements.

Then, it focuses on experimental investigation on new and old concrete bonding shear performance, and verification of bonding properties of interface agent.
Such damages of bridge deck pavement as overall exfoliation, decrustation, crack and spallation are closely related to poorer binding material properties.
Cleaning and leveling principle for these parts is rather deep than shallow and rather square than round. 4.2 Beam Top Cleanness Before conducting deck pavement, deck slab surface cleanliness is an important factor affecting the bonding strength between lower surface of bridge deck pavement and deck slab surface.
(2) New and old concrete interfacial bond shear strength all are much lower than the strength of overall shaping concrete, greatly affecting shear performance of the structure.
Experimental Investigation on Mechanical Properties of Concrete Bridge Deck Pavement System [J].

The detection and reinforcement of a flyover by fire Zhengjian Li1,a, Yan He1,b 1School of Civil Engineering & Architecture, Jiaozuo University, Jiaozuo, Henan, 454003,China a jzdxlzj@163.com, b anyihe@163.com Keywords: concrete bridge; fire; injury-testing; reinforcement; assessment Absract: Against the characteristic of the concrete bridge suffered from the fire, with an engineering example, some methods of detecting and estimating the damaged bridges are introduced in the paper, and the treatment plans for reinforcement are put forward, a useful reference for dealing with the concrete bridge with similar diseases. 0 Foreword The concrete bridge by fire, with a big change in mechanical features of the materials and different degrees of destruction in its structure, will not be reused until it is reinforced.
So it is a feasible way to restore the strength by reinforcement. 4 Einforcement design 4.1 The recommended plan of Preliminary strengthening Comprehending the site factors and after the various contrast demonstrates, we decide to choose the composite materials -- Fang Ren Glass Cloth to reinforce the structure【4】.
So we can get that it has good flexibility restore ability. 6 Conclusion After reinforced concrete bridge suffered the fire, the mechanical properties of materials will in great change, from the view of static force, it mainly includes: strength dropping causes to the decrease of the bearing capacity; Stiffness changes causes to the larger deformation, and then affect the normal use of the bridge.
"The buildings diagnosis and treatment after fire" [M], nanjing, jiangsu science and technology press 1994· [3] Wu Bo, "The mechanical properties of the reinforced concrete structures after fire" [M], Beijing: science press 2003 [4] Song Zhiyuan.

Blanking clearance is one of the key factors affecting the quality of fine blanking.
Such can highlight theme, and it doesn't affect the results.
Material property parameters were shown in Table 2 Table1 45 steel components material composition C Si Mn P S mass percent % 0.48 0.31 0.62 0.01 0.02 Table2 The main performance parameters of material material tensile strength/Mpa Yield limit/Mpa Elongation % C45 650 350 38 FEM numerical simulation has been adopted to simulate the blanking process under the different relative clearance and comparing hydrostatic stress field distribution.
To improve the quality of punching, other factors must be considered, not only by reducing the relative clearance.
[4] Yihong Huang: The Chinese mechanical engineering. (1994) p. 5.

Current analytical techniques for simulating the generation of residual stresses within welded structures make approximations and simplifications relating to the mechanical properties of the weld metal.
Anisotropy becomes an important factor when the thickness of the plates increases.
Designers usually make approximations about weld metal properties such as the elastic modulus.
We have tried to investigate the anisotropic properties of the weld metal by subjecting the weld specimen to in-situ tensile loading in the neutron beam.
A 50kN Instron hydraulic stress rig available on ENGIN-X for in situ mechanical loading was used for this experiment.

This robot adopts four tracks composite drive mechanism with front and rear machine hinged, and has good climbing, obstacle capability, the ground adaptability, mechanical properties, waterproof, fireproof, explosion-proof and other functions.
It carries oxygen, food, lighting, water, self-help equipment and first-aid medicines to achieve effective relief. 1 Introduction Due to many factors, the coal mine accidents are frequently occurred in our country.
With high transmission efficiency and better technology in mechanical transmission, the robot should have small section size (1000 * 280 * 250).
So it is highly flexible and not affected by resistance in the front or the side of the machine.

Some of them focused on material properties [3, 4].
Therefore, the dies will undergo a complex thermo-mechanical load during the forming process.
The high temperature or the uneven temperature distribution on dies will result in decrease of dies mechanical properties and reduce the die lifetime greatly, and even cause the part quenched incompletely.
One is to control the maximum temperature to maintain a relatively low level, in order to ensure the quenching effect and die’s mechanical properties.
In hot stamping process, the change of the die temperature is mainly affected by two factors: One is the heat flux from high temperature blank to die; another is that from dies to cooling systems.

Steady Heat Transfer Analysis of Leaf Spring Rotary Engine Dongjie Wang1, a, Zhengxing Zuo2, b 1School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China, 100081 2School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China, 100081 awangdongjie@bit.edu.cn, bzxzuo@bit.edu.cn Keywords: leaf spring; rotary engine; heat transfer; thermodynamics; performance Abstract.
Fig. 9 p-V diagram of different ignition position Fig. 10 Output power of different ignition position Summary Heat transfer is one of the important factors that affect the performance of the small-scale leaf spring rotary engine.
The ratio of surface area to the volume of the engine increases when the engine is scaled down and the heat loss will affect the combustion reaction.
The ignition position will also affect the performance of the engine.
So we can consider the properties analyzed and take necessary measures for the realization of the design objective of the leaf spring rotary engine.

The barriers include the dispersion of nanoparticle, the effect of nanoparticle concentration and interface on the overall properties of materials.
The results also showed that crystallization was enhanced because of existence of nanoparticles, which should have increased the mechanical properties of the composite and decreased its resistivity because of the interfacial action between CB particles and polymer matrix.
From the view of industrial application of the materials, it is a crucial to control the properties of parts through adjusting processing parameters.
But it is not clear whether the change-like affects the conductivity of composites and how it does.
The objective of this study was to systematically investigate the relation between microstructure and conductivity of the parts to improve the application of injection molding process, and find out the factors to increase the conductivity of the composites through controlling the processing techniques.