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The material of trial parts is 7075 A-alloy, and the tool is the f10mm hard alloy. 0 10 2 0 30 40 50 - 40 - 35 - 30 - 25 - 20 - 15 - 10 - 5 0 error(micron) pa rts N o.
Ertekin: International Journal of Machine Tools & Manufacture, Vol.40 (2000), pp.1199-1213
Jun: Journal of Manufacturing Science and Engineering, Vol.119 (1997), pp.717-725
Hsu: International Journal of Machine Tools & Manufacture, Vol.42 (2002), pp.1153-1162
Spence: International Journal of Machine Tools & Manufacture, Vol.40 (2000), pp.833-850

General solutions of the equations of elasticity and consolidation for a porous material.
Journal of Applied Mechanics , 1956, 27(3):91 -96 [2] Biot MA.
Journal of Applied Physics, 1956, 27(7):459-467 [3] Biot MA, Willis DG.
Journal of Applied Mechanics , 1957, 28 (12):594-601 [4] Biot MA.
Journal of Applied Physics , 1962,33(4):1482-1498 [5] Plona J.

Finite element analysis of crankshaft Modal analysis of crankshaft Crankshaft built by solidworks is imported into ansys, which in order to make up the weakness for modeling capacity of ansys, and the parameters of elastic modulus, poisson ration and density of material will be input into ansys.The elastic modulus is 200Gpa, the poisson ration is 0.3, and the density is 7800kg/m3.
In addition, according to the analysis, the joints between the crankshaft main journal and the crank arm, the connecting rod shaft neck and the crank arm that are susceptible to be damaged, and the mesh refinement technique is adopted at these locations.
The seventh mode shape of crankshaft Stress analysis of crankshaft Firstly, a three direction constraint is applied in the crankshaft main journal.
The results indicated that, the joints between the connecting rod journal and the crank arm is weak links on the first crank.
Therefore, measures of improving the stress state of the joints between the connecting rod journal and the crank arm should be considered in the process of design and improvement.

References [1] YUAN Feng, NIE Hui-juan, “The structural improvement design of a displacement sensor with pulling tread,” Journal of Henan Mechanical and Electrical Engineering College, Vol.15, NO.5, 2007, pp.26-27.
(in Chinese) [2] LI Wei, LI Chuan, “Fiber Bragg grating displacement sensor with double cantilever beam,” Journal of Microcomputer Information, Vol.27, NO.3, 2011, pp.52-53+67.
Claus writes, “Smart material, instrument, structure and application,” Wuhan University of technology press.
(in Chinese) [4] LI Chuan, ZHANG Yi-mo, ZHAO Yong-gui, LI Li-jing writes, “Optical fiber grating: principle, technology and sensing application,” Science press.
(in Chinese) [6] WANG Jun-jie, FU Xiao-hong, JIANG De-sheng and ZHANG Feng-tao, “Research of differential optical fiber displacement cell and its temperature characteristic,” Journal of Wuhan University of Technology, Vol.29, NO.12, 2007, pp.112-115.

Experimental material is 1mm thick GH3536; the JK702H pulsed Nd: YAG laser is used, the power is 350W, laser beam is TEM00 mode; the exit diameter conical coaxial nozzle is 1mm; the relative distance between lower surface of the nozzle and plate surface is 1mm; the auxiliary gas is argon; the collection of pulse-induced acoustic sound is the same as the reference [11].
Journal of NorthWestern Polytechnical University, 2001, 19( 4) : 625- 628
Journal of Vibration, Measurement & Diagnosis, 2011,31(1):74-77,130
Journal of Jilin University ( Engineering and Technology Edition),2009,39(S1):219-221
The study of Quality Monitoring and Control for Laser Cutting based on pulse-induced acoustic sound[J].American Journal of Engineering and Technology Research,2011,11(12):291-294.

（11） Where is the relative sliding velocity (m/s), constant a, b, c, d is decided by the material and load.
Larsson: Journal of Engineering Tribology, Vol. 221 (2007) No 5, pp545-551
[4] AMIR Ibrahim A, D.T.Qin, Z.J.Liu: Information Technology Journal, Vol 4 (2005) No 2, pp140-145
[5] D.Y.Sun and D.T.Qin: Journal of Mechanical Engineering, Vol. 11(2003) No 11, pp 108-112
[6] C.S.Sun and J.W.Zhang: Chinese Journal of Mechanical Engineering, Vol. 17(2004) No 2 pp280-283

The measured specimen material properties are shown in table 1.
Journal of southwest jiaotong university, 2008,43 (2):206-212
Journal of central south university, 2011,42(2):449-455
Journal of Harbin Institute of Technology,2010,42(2):193-199
Journal of Jiangxi science, 2008, 26 (4):614-617.

Experimental Materials Machining Tool.
The Part and Material.
Tool Material.
Materials Science and Engineering A379(2004), pp. 366-371 [3] Andrzej werner, malgorzata poniatowska: Determining errors in complex surfaces machining with the use of cnc machine tools.
Journal of Scientific and Industrial Research Vol. 68 (2009), pp.686-695.

In the elastic-plastic calculations of geo-materials, the stress-strain relationship of material is related to the loading path.
It is simplified four kinds of materials based on the actual ground situation, and material parameters are shown in Table 1.
Table 1 Material parameters table elastic modulus(MPa)) E（Mpa） Poisson's ratio friction angle(。)
Acknowledgements: The authors deeply appreciate support from Fundamental Research Funds for the Central Universities(2009QN050),Liaoning Province Education Department Fund(L2010063) and the National Natural Science Foundation(51079010).
Differential Evolution-A Simple and Efficient Heuristic for Global Optimization over Continuous Spaces [J].Journal of Global Optimization, 1997 (11):341-369

Lee1 1 Materials Evaluation Group, Korea Institute of Machinery and Materials, 66 Sangnam-dong, Changwon, Kyungnam, 641-010, Korea 2 Department of Metallurgy and Materials Science, Changwon National University, 9 Sarim-dong, Changwon, Kyumgnam, 641-773, Korea Keywords: Thermal Fatigue, Thermal Stress, Heat Checking, Nitriding, Residual Stress Abstract.
In the case of heating method, induction heating, direct contact with hot material, burner heating and furnace heating are used while the most popular cooling method is water spraying.
Furthermore, it is well known that the thermal fatigue characteristic of die materials is largely affected by surface condition such as residual stress, roughness and machining method etc.
Inspection area Unit : mm 43 60 d Journal Title and Volume Number (to be inserted by the publisher) Table 3.
Journal Title and Volume Number (to be inserted by the publisher) References [1] M.Pelizzari, A.