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With the advancement of science and technology, the precision of processing mechanical parts is increasingly high demand, the increasing number of small diameter deep hole parts, which puts forward higher requirements of deep hole processing equipment and Gun-Drill sharpening devices.
With the wearing and tearing of gun drill in the process of machining, especially the processing of stainless steel and heat resistant alloy material products, the consumption is high, processing quality is poor, cutting tool is worn,when the wear reaches the dulling standard, the tool should be grinded immediately.But due to the grinding device production haven't been widely used in current domestic market,the relevant process is still not known, and the gun drill price relatively expensive,one gun drill is in two thousand yuan of above, if the problem of good tool resharpening cannot be solved,the processing costs would be an inevitable impact.Therefore, the design of gun drill grinding device is imminent.
Journal of heilongjiang science and technology information, 2007, 18:075
Journal of gansu science and technology, 2012, 28 (15)
Journal of equipment maintenance technology, 2009 (1) :31-34.

Damage detection in composite materials can be divided into active and passive approaches.
Next Generation Structural Health Monitoring and its Integration into Aircraft Design, International Journal of Systems Science, 31(11):1333-1349
Tuned Lamb Wave Excitation and Detection with Piezoelectric Wafer Active Sensors for Structural Health Monitoring，Journal of Intelligent Material Systems and Structures, 16:291-30
Lamb Wave Interaction with Impact-induced Damage in Aircraft Composite: Use of the A0 Mode Excited by Air-coupled Transducer, Journal of Composite Materials, 37(3)
Piezoelectric-Based In-Situ Damage Detection of Composite Materials for Structural Health Monitoring Systems，PhD thesis at Massachusetts Institute of Technology

Introduction Non-destructive testing (NDT) of materials are commonly performed to identify, characterize, assess voids, defects and damage in materials [1].
The amount of energy lost through absorption depends upon the elastic properties of the material being tested [16] while loss due to scattering in materials also depends on the ratio of grain size and wavelength [6].
Moreover, it is possible due to the close association of the ultrasonic waves with the elastic and inelastic properties of the materials [17].
Hussain, Structural Studies of Lithium Boro Tellurite Glasses doped with Praseodymium and Samarium Oxides, Materials Research Bulletin 47 (2012) 3489-3494
Dongri, Ultrasonic NDE Techniques for Impact Damage Inspection on CFRP Laminates, Journal of Materials Science Research 1(1) (2012) 2-16

Oliveira: Materials Science Forum Vols. 775-776 (2014), p. 729
Garcia:Materials Science and Engineering: A Vol. 402 (2005), p.22
Garcia: Journal of Materials Processing Technology Vol. 144 (2003), p. 703
Prasad: Materials Science and Engineering A Vol. 367 (2004), p. 63
Purçek: Journal of Materials Processing Technology Vol. 169 (2005), p.242

The paper is about synthesizing the 2-ethylhexyl nitrate(2-EHN) with nitric acid and 2-Ethyl hexanol as raw materials and sulfuric acid as catalyst in a micro-channel reactor.
The paper is based on advanced micro-channel response technology, combining with the actual situation of Nanjing refinery. 2-ethyl hexanol and HNO3(98%) are used as raw materials, and H2SO4 is used as the catalyst.
Materials and methods Reagent and instrument.
The materials in advection pump can be expelled from the bottom of the pump with the controlled speed.
Pritchard: submitted to Journal of Combust.

Experimental Materials.
Trends in Food Science & Technology.
Plastics Science and Technology.
Journal of Polymer Science Part B: Polymer Letters.
Journal of Biomedical Materials Research Part B: Applied Biomaterials.

Miheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, 18 S.
These materials have unique physical, mechanical and chemical properties which open a range of new applications of these materials in high technologies [1–3].
It should be noted that the grain structure is the most important factor responsible for the special properties of such materials, which differ them from ordinary polycrystalline materials.
Gleiter, Nanostructured materials: Basic concepts and microstructure, Acta Mater. 48 (2000) 1-29
Pilyugin, Thermal stability of nanocrystalline structure in niobium processed by high pressure torsion at cryogenic temperatures, Materials Science and Engineering A. 528 (2011) 1491-1496

The materials used in the journal are lean duplex stainless steel of grade EN 1.4162.
International journals of innovative research in science 2013; Vol.4, Issue 4
Material properties of cold-formed lean duplex stainless steel sections.
International journals of innovative research in science 2014; Vol.4, Issue 2
International journals of innovative research in science 2015;96:105-119

Meng, Materials Science and Engineering: A, 532 (2012) 331-338
Suzuki, Journal of materials science, 33 (1998) 1333-1341
Atrens, Journal of materials science, 36 (2001) 4763-4777
Sun, Materials Science and Engineering: A, 421 (2006) 254-259
Deping, School of Materials Science and Engineering, Shanghai Jiao Tong University, 2007

Abstract The quest for the lighter materials have motivated the researchers worldwide to develop a newer composites. with the discovery of carbon nanotubes, a class of novel material it has been possible to fabricate the components for the field of automotive and aircraft industries where the strength to weight ratio becomes prominent.
Comparison of stress and deformation of different materials Material Maximum stress [Mpa] Maximum deformation [mm] cast iron 237.74 0.17112 Al7075 182.02 0.13101 Al7075-MWCNT 172.74 0.12433 The FE analysis for Maximum stress and deformation was conducted for three materials namely cast iron, Al7075 alloy (unreinforced) and Al7075-MWCNT composites.
Vieira “Aluminum and Nickel Matrix Composites Reinforced by CNTs: Dispersion/Mixture by Ultrasonication” Metals 2017, 7, 279; doi:10.3390/met7070279 [7] Pham Quang,Young Gi Jeong,Seung Chae Yoon, Sun Hong, Soon Hyung Hong and Hyoung Seop Kim “Carbon Nanotube Reinforced Metal Matrix Nanocomposites Via Equal Channel Angular Pressing” Materials Science Forum Vols. 534-536 (2007) pp. 245-248 [8] Shadakshari R, Dr.Mahesha K, Dr.Niranjan H B “Carbon Nanotube Reinforced Aluminium Matrix Composites” International Journal of Innovative Research in Science, Engineering and Technology Vol. 1, Issue 2,December 2012 pp.206-213 [9] M.
Vieira “CNT-Aluminum Metal Matrix Nanocomposites” ECCM15 - 15TH EUROPEAN CONFERENCE ON COMPOSITE MATERIALS, Venice, Italy, 24-28 June 2012[10] P.
Indian Journal of Engineering, 2014, 10(21), 33-39