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Electro-Spark deposition of composite TiB2-TiC on electrodes’ surface Fenfang Tan1,a, Ping Luo2,b, Zhixiong Xie2,c 1School of Mechanical Engineering,Wuhan Polytechnic University,Wuhan 430023, PR China 2School of Mechanical Engineering, Hubei University Of Technology, Hubei, 430068 PR China aTanyi8447@126.com, bblueknight_0930@163.com, cshebu@126.com Keyword: Electro-Spark; Coated electrodes; TiB2-TiC; Resistance spot welding Abstract.
These coatings have their unique set of properties, for example only TiB2 and TiC coating layer have bad wetting with the substrate of Cr-Zr-Cu, Ni/(TiCP/Ni)/Ni multi-layer has bad stability in high temperature conditions, these defects of coating will badly limit the prolong of life of coating electrodes.TiB2-TiC composite coating can resolve these problems.
In the system, there are two important factors will affect quality of the coating layer, the first is voltage, the second is the value of capacitance.
Fig.5 shown capacitances also will affect quality of coating layer, but it is not primary.
This paper first discussed coating parameters affected for the quality of coating layer, and first using secure voltage (<36v) during ESD process.

Introduction It’s very important to evaluate the mechanical properties of the subgrade of pavement while the load-pavement-subgrade system is an interaction system.
The depth of subgrade affects the subgrade frequency greatly according to the laboratory model analysis.
Calculation method of influence depth Aircraft load and gravity affect the subgrade.
Through calculation, the dowels between the pavement plates have less affected to frequency of overall pavement.
Wei etc: Research on influential depth of vehicle loads and its influencing factors.

Regarding to the mechanical characteristics of natural fibers, due to the characteristics of polymeric fibers, their mechanical properties are determined by the resistance of inter and intramolecular bonds and the polymer chains formation [18].
Fibers insertion is an important factor, as they lead to the improvement of mechanical properties that inhibit cracking.
The use of natural fibers as reinforcement depends, among others, of their mechanical properties, thus, an improved mechanical behavior of these fibers is necessary for the development of new composite materials.
Hale, A study of the potential of acetylation to improve the properties of plant fibres.
Physical properties of edible films based on cassava starch as affected by the plasticizer concentration.

The paper make the service life of relieving formed milling cutter as the optimization objective, proceed the simulation study on the mechanical degree of cutter, cutting data.
The results indicate that the finite element simulation of the metal cutting processing can analyze quantitatively some physical properties, such as the cutting force, stress, strain and so on, the traditional way of qualitative analysis is changed.
The finite element simulation object of metal cutting processing is the reaearch that the relevant factors of cutting influence the working life of tool.
Mechanical model of the forming milling cutter In the paper, the research tool is the shovel teeth forming cutter which milling circular trough, the local cutting processing of forming cutter is showen the figure 1. ap is the width of the cutting layer which is ready to cut, ae is the depth of the cutting layer which is ready to cut, af is the feed per tooth. v is the feeding speed of workpiece.
The extremum problems in the milling process is discussed, the cutting layer thickness in the actual milling is a variable, the maximum is af, we should build the orthogonal cutting model, which is shown as figure 4, the setting of the cutting layer thickness chip extreme value af, it won't affect the results of problem.

Flexural testing (three point bending) were conducted to investigate the effect of electrospun CNT/PU neat with different weight fractions toward the mechanical properties of composites.
Result and discussion Mechanical properties The resulting typical flexural test stress-strain curves are presented in Fig. 2.
The presence of beads can affect the mechanical properties of the mats as these beads will serve as stress points.
We also noticed many voids that indicated the non-uniform laminates on some parts and leading to decreased mechanical properties.
The mechanical properties increased when the CNT contents in the PU nanofibers also increased.

The main factors affecting the stress and strain fields are the shape and the size of the buildup, the process parameters, the thermomechanical and the thermophysical properties of the deposited material and the interlayer dwell time [8, 15, 16].
The temperature-dependent thermomechanical and thermophysical properties for IN625 and AISI 316 were taken from [8, 19, 20].
Sklyar, Influence of the roughness on the mechanical properties of ti-6al-4v products prepared by direct laser deposition technology, Solid State Phenomena 284 (2018), 312-318
Zhang, Additive manufacturing of metallic components – process, structure and properties, Progress in Materials Science, 92 (2018) 112-224
Mills, Recommended Values of Thermophysical Properties for Selected Commercial Alloys, Woodhead Publishing, Cambridge, 2002

Effect of liner laser irradiation on bending properties of thin high carbon steel plate was investigated in this study.
Most of steel parts are made from steel with uniform mechanical properties generally.
Bending properties by three points bending test were evaluated by the comparison with as-receive state.
Flexural load-deflection curve. 3 point bending test was carried out in order to evaluate bending properties of linear laser irradiated thin high carbon steel plate.
Ratio of depth of laser-transformed zone and thickness of steel plate d/h affected bending property.

Zhou4 1,2,3,4 Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, No.17923, Jingshi Road, Ji’nan, Shandong Prov.
For example, the efficiency of Monte Carlo method is low and the growth factor of simulation is lower than the growth factor of theory [19].
Grain growth rate of the ceramic materials is mainly affected by the impact of material properties, the initial diameter of grain, sintering temperature and sintering pressure.
It is assumed that the requirement of heat for grain growth in the total heat is R1, heat causes the growth of grain, the conversion factor is r.
In the future work, the factors in actual sintering process should be considered, and it can be combined with existing computer models.

Vehicle collision avoidance radar should have good anti-interference ability.Since the road conditions of freeway are complicated, anti-collision radar is exposed to ambient reflections, other vehicle electromagnetic interferences and many other factors.
In fact, because of the laser ranging is easy to be influenced by the weather, a laser transmitting and receiving mirror cleanliness, is a measure of the vehicle and the obstacle itself surface roughness, pollution and vehicle vibration and other factors, so that the laser radar detection range precision and the degree of accuracy are difficult to guarantee .
Ultrasonic ranging.Ultrasonic (of a frequency above 20kHz mechanical wave) as a special acoustic, acoustic transmission has the same basic physical properties -- reflection, refraction, interference and so on.
But affected by weather condition influence of ultrasonic ranging, short detection range, mainly used for reversing anti-collision system.
In this respect, comparing to the laser, ultrasound, infrared distance measurement has obvious advantages, not because of the weather factors influencing the stability range. 2) Strong ability to adapt to the environment Millimeter wave radar penetrating ability is very strong, its location accuracy affected by rain, snow, fog, and the sun and other weather conditions and the noise, pollution and other environmental factors is small, it can ensure the vehicle in any weather under normal operation.

Song Huijun et al [1] studied the mapping relationship of the process, function, behavior, hybrid on conceptual design; DARLINGTON MJ analyzed and explained the main factors which affected the design requirements for the formation process and the content of design [2]; Zou HuiJun et al [3] described the characteristics of the design requirements and its relationship with product features, pointed out that the design process is an important part of the Enterprise development strategic planning.
This layer is critical to part layer and parameters layer and is affected by their feedback to further improve its own structure.
Parameter layer: Describing the overall properties of the process model, the parameters which can show the advantages and disadvantages of the product is the Main modeling object.
The output properties of the product model are which this level wants to get, according to these parameters, we can judge, choose and optimization the process models of a product, and finally decide which process model is the best fit for the product.
Chinese Journal of Mechanical Engineering Vol.42 (2006) No.10 [10] W.