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Is the study of drilling pressure, rotating speed, hydraulic parameters, drilling combination drilling parameters and mechanical drilling rate, and so on.
However, In the drilling operation, affect the rate of penetration is very complex, factors affecting is very various.
And deep retrieval method based on knowledge is according to the characteristics of attribute importance in question given properties of different weights, usually combined with the nearest neighbor method is used.
The average rate of penetration is 15.32 m/h in 2011, the average rate of penetration after optimization is 21.35 m/h in 2012, after optimizing the mechanical drilling rate increased by 39.36% than before optimization.
(2) The characteristics of case base organization, sample selection and retrieval, similarity measure method and the correction of sample characteristics directly affect the quality and quantity of drilling parameters, and directly affect the credibility and fidelity of drilling parameter optimization

The second part is to print several sets of samples under the optimal parameter configuration conditions, and determine whether the mechanical properties of the tablets meet the use indexes.
The four factors are single layer thickness d, filling rate p, filling speed v, filling pattern s.
And the physical properties and chemical properties of the printing tablets were explored.
And the release properties of acetaminophen tablets were basically consistent with the release performance.
Common Influencing Factors and Control Measures of Dissolution in Tablet Production [J].

The service condition of pipeline is mostly moist soil and in desert environment, and transport medium contains more H2S and other acidic substances, and corrosion is the key factor of affecting the reliability of piping system and the service life [2], because in the high-pressure pipeline welded parts, especially the laying of pipeline welded part which is the accident-prone location of failure.
Residual stress caused by welding has a significant impact on the mechanical properties, high residual tensile stress can lead to cracks within the structure, reduce tensile strength and fatigue strength [3].
Micro-hardness is a widely used mechanical property, that is token of plastic deforming resistance of materials and the capacity of strain hardening.
The results shown that the surface micro-hardness of the sample by laser shock processing had increased from 220~235HV to 250~265HV, the strengthened layer is formed in the surface of welded joint, so that the hardness of welded zone, fusion zone and heat-affected zone has risen markedly, which would help to improve the mechanical properties of welded joint.
Ji and et al: Chinese Journal of Mechanical Engineering Vol. 43 (2007), p. 154 [6] D.P.

R China azzmlxy888@yahoo.cn, bchinalndlzzm@163.com Keywords: Diamond Tools; Tool Wear; Titanium Alloys; Precision Machining; Ultrasonic Vibration Turning Abstract: Titanium alloys, as difficult-to-cut materials, have poor machinability due to their superior mechanical properties, heat resistance and corrosion resistance.
Introduction Titanium alloys are used widely in the aerospace, chemical and ship building industry because of their superior mechanical properties, heat resistance and corrosion resistance [1].Titanium alloys, however, are materials that are extremely difficult to machine [2].
Low thermal conductivity of titanium alloys retard the dissipation of heat generated, creating, instead a very high temperature at the tool–work piece interface and adversely affecting the tool life[3-4].To get a lower cutting temperature, various cooling methods were employed, such as steam/vapor cooling [5,6], cold air cooling [7–10], liquid nitrogen cooling [11], high pressure coolant jet [12], minimum quantity lubricant /near dry machining, etc [13].In order to maintain reasonable tool life, a high efficiency diamond tool ultrasonic vibration strategy was employed.Through titanium alloy turning experiments in this paper, we can draw the conclusion that effects of cutting parameters on tool wear in diamond tool ultrasonic vibration turning. 2.
However, there are many factors impact on the machining quality.

In this work, optical microscopy data are analysed in support of flexural properties of kaolin coated lumber woods.
Correlating mechanical and thermal properties of sodium silicate-fly ash geopolymers.
Factor affecting early compressive strength of alkali activated fly ash (OPC-free) concrete.
[8] Wang, Li and Yan (2005).Synthesis and mechanical properties of metakaolinite-based geopolymer.
Development and properties of low-calcium fly ash based geopolymer concrete.Research report GCI.

In joining process the interference amount is an important factor, which affects ultimate strength and fatigue life of the mechanical structure.
Especially interference amount is an important factor, undersized interference amount may be difficult to form interference-fit for compressing not enough, that may lead loosening and dropping in service.
（3） So we can see when the hole wall come into the state of the plastic deformation, the radial displacement is an value changing with the initial radius and the material property.
Mechanical Science and Technology for Aerospace Engineering,2009,28(4): 514-516

It is found that the average power factor of Cu2.995Co0.005SbSe4 was increased by 30% compared with the pure sample, indicating that Co doping had a great effect on the electrical properties of Cu3SbSe4.
Since the factors are not independent of each other, it is almost impossible to increase PF without increasing κe [8].
The power factor is shown in Fig. 3c.
Zhao, Synthesis and Thermoelectric Properties of ZnO/Cu2SnSe3 Composites, Mater.
Kurosaki, Thermoelectric properties of Ag1-xGaTe2 with chalcopyrite structure, Appl.

State-of-the-art mechanical blade dicing Mechanical blade dicing is the state-of-the-art dicing technology in semiconductor industry not only for SiC.
These characteristics are dependent to the mechanical properties of the material.
The laser heats up the material to some hundred degrees Celsius without affecting the temperature sensitive polyimide coating near dicing street.
Although, TLS is a two-step process the throughput can be increased by a factor of 10 compared with mechanical blade dicing.
Goldberg et al.: “Properties of Advanced Semiconductor Materials GaN, AlN, SiC, BN, SiC, SiGe”; John Wiley & Sons; New York, pp. 93-148, 2001 [3] H.

The plastic injection molding process is a very complex multi-factor coupling, non-linear and dynamic process, any factor in the process has an important influence on part’s quality, such as injection machine, mold design, properties of molding materials, molding parameters and so on, which may lead to product quality defects [1].
It affects not only the products’ appearance, but also the mechanical property.
There are many factors influence the strength of weld line intricately.
Selection of Factors and Levels.
Levels table of factors is shown as table 1.

Effect of Multi-forging Condition on Deformed Structure and Mechanical Properties of A 99.995 Percent High Purity Aluminum Qingfeng Zhua, Wenjing Wangb, Zhihao Zhaoc, Yubo Zuod and Jianzhong Cuie Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, China, 110004 azhuqingfeng@epm.neu.edu.cn, bwj9026@163.com, czzh@epm.neu.edu.cn, dzuoyubo@epm.neu.edu.cn, ejzcui@epm.neu.edu.cn Keywords: High purity aluminum, Multi-forging, Deforming structure, Hardness, Recrystallization.
The effect of multi-forging on macrostructure and mechanical property of the high purity aluminum was investigated.
The results show that the deformation heat during the MDF process can obviously affect the recrystallization of the high purity aluminum.
Mechanical properties of Ti-6Al-4V titanium alloy with submicrocrystalline structure produced by severe plastic deformation [J].
Effect of Multiple Forging Process on the Microstructure and Properties of Magnesium Alloy [J].