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  • 1
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    Intensive and extensive nitrogen loss from intertidal permeable sediments of the Wadden Sea (2012)
    In:  EPIC3Limnology and Oceanography, 57(1), pp. 185-198, ISSN: 00243590
    Details
    Publication Date: 2018-02-12
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 2
    Electronic Resource
    Electronic Resource
    Surface Damage Analyse of KDP Crystal Grinding (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 24-25 (Sept. 2007), p. 349-354 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The functional crystal material Potassium dihydrogen phosphate KH2PO4 (KDP for short)is widely used in navigate, spaceflight, national defenses, energy sources and informationtechnology fields because of its excellent non-linear optical property. However, KDP crystal hassome disadvantages such as soft, fragile, hygroscopic, anisotropy, thermally sensitive and lowrigidity, which make it a most difficult processing material. In this paper, KDP crystal wasmachined by the wheel grinding. Some equipment, such as Optic microscope, SEM, ZYGO andRaman spectroscope were used to observe and analysis the KDP crystal surface which wasdamaged during grinding. The results shows that serious nicks, crashes and the press stressappeared on the surface of the KDP crystal after grinding
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.24-25.349.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Influence of Grinding to the Surface and Subsurface Quality of KDP Crystal (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 53-54 (July 2008), p. 203-208 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Potassium dihydrogen phosphate (KDP) crystal is widely used in navigates spaceflight,national defenses, energy sources and information technology fields based on its excellent nonlinearoptical property. Surface quality of KDP crystal influences the property and life time of the devicedirectly. So detection and analysis of the damage induced during machining process, especially onsubsurface, should be solved. In this paper, surface damage of the KDP crystal, which machinedfrom #600 grinding wheel with different feed rate, was detected by optical microscope. Crosssection and selective etching were used to analyzing the subsurface damage. Because #600 grindingwheel mainly used in coarse grinding and the removal rate is high, the results shown that there wasobvious scratch, crack and crushing on the machining surface. When the feed rate is 10+m and40+m, the subsurface damage depth is 7.41+m and 8.96+m corresponding. This study is a kind ofguide for following precision grinding, polishing machining time and removal amount
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.53-54.203.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Development of Electroplated CBN Wheel with Cemented Carbide Base for Precision Grinding of Compressor Cylinder Vane Slot (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 329 (Jan. 2007), p. 495-500 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: It is experimentally found that existing micro-holes or micro-concaves on the cementedcarbide base surface of electroplated CBN wheel is one of important reasons to worsen thecombining intensity of the electroplated abrasives layer with the grinding wheel base. It is wellsolved by sealing the holes or concaves with steam sealing method. Further more the electroplatedCBN wheel with cemented carbide base for precision grinding of compressor cylinder vane slot isdeveloped by optimizing the electroplating prescription and process. Productive grinding resultsshow that the ground surface roughness, size precision and the wheel life have reached theadvanced index of the same type of wheel imported
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.329.495.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Product Numbering System Design for Single Piece or Small Batch Customization Manufacture and its Process Organization (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Applied mechanics and materials Vol. 10-12 (Dec. 2007), p. 23-27 
    Details
    ISSN: 1662-7482
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In this paper, a kind of product numbering system for single piece/small batchcustomization manufacturing and its process organization is put forward based on the current statusof Shenyang Heavy Machine Manufacture Group Co. Ltd. and the trends of advancedmanufacturing technology such as PDM/ERP etc. The numbering system developed includes allof relative public information data such as product order, design, process plan, manufacturing,marketing, consumer servicing and so on. A more favorable condition is created to realize theshare of relative information in the different departments of the company and to improve theresponse to the market
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/38/transtech_doi~10.4028%252Fwww.scientific.net%252FAMM.10-12.23.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Study on Removal and Embedding Mechanism of CdZnTeUsing Loose Abrasive (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 24-25 (Sept. 2007), p. 201-210 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Cd1−xZnxTe (CZT) is an excellent ternary compound semiconductor. CZT is the mostsuitable substrate material for Hg1−yCdyTe epitaxial growth and can make the detector itself. Theresearchers have done a lot of works on the hard and brittle material removal mechanism in lappingprocess. however, no published articles are available regarding the removal mechanism and theabrasives embedding mechanism of the soft and brittle material in lapping progress .and there is itsown characteristic if the hard abrasives machining the soft and brittle material in lapping progress,the objective of this paper is to build the physical model ,and divide the abrasive into four kinds ofabrasives , they are two-body abrasive ,three-body abrasive ,embedded abrasive and small abrasive,and the authors analyze the effects on the material surface of the above abrasives. At last, designseries of experiments, through analyzing the results and observe the surface morphology, theauthors prove that the physical model is correct
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.24-25.201.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    Fracture Analysis of Side-Gusset Plate of Combined-Roller Based on Finite Element Method (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 324-325 (Nov. 2006), p. 137-140 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The side-gusset plate is connector of the combined-roller, which is the key component ofthe High-pressure Grinding Roller equipment that is applied in crushing raw iron ore, Fractureoccurred at the bottom of the side-gusset plate while the roller’s operation. For exploring the reasonof fracture, the stress distribution and corresponding critical location of the side-gusset plate werecomputed and analyzed according to two working situations based on finite element method. Theanalysis result illustrates that it is the failure of infant mortality because of overloading, not belongsto fatigue behavior, with the presence of the component operating time and the fracturecross-section’s granular feature as well. This result is a reliable foundation for succeeding redesignand manufacturing of side-gusset plate and other component, the feasible plan was brought forwardto improve the component operation’s stability
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.324-325.137.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    The Study on Data Exchange of Huge 3D Model (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Applied mechanics and materials Vol. 10-12 (Dec. 2007), p. 150-154 
    Details
    ISSN: 1662-7482
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: On the basis of analysis and summary of the research of the others, we choose thenotepad as the carrier of the data file and a code as the expression of the feature information of theproducts, embedding them in the 3D CAD system like a plug-in unit. In this way, the products’ dataaccurate transmission between distributed and isomeric CAD systems over the internet is realized.This method can also be used in the real-time collaborative design system
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/38/transtech_doi~10.4028%252Fwww.scientific.net%252FAMM.10-12.150.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Studies on Disfigurement-Fee Technology of Drilling Carbon Fiber Reinforced Plastics (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 24-25 (Sept. 2007), p. 125-132 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Based on the analysis of various disfigurements of carbon fiber reinforced plasticsformed in drilling process, the formation model of disfigurement is built up, and analysis resultsshows that the main reason of disfigurement is the exceeding cutting force. By focusing on theseproblems, new-type drill—super-hard electroplated abrasive drill is developed, and someexperiments were carried out. Compared with the traditional sintered-carbide drill in drilling, thesuper-hard electroplated abrasive drill has lower drilling force, better drilling quality, highermachining efficiency, and longer life-span. A conclusion that super-hard electroplated drill is moresuitable for drilling CFRP is gained
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.24-25.125.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    The Centerline Position Measuring and Online Machining Compensation of the Rail Base for High-Speed MAGLEV (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 532-533 (Dec. 2006), p. 592-595 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The precision machining of the rail base for high-speed Magnetically Levitated Trains(MAGLEV) is the precondition for laying the high-quality whole rail and accomplishing theintegrative performance test of the train. A new method is advanced to improving the machiningprecision in this paper. The X and Y coordinates of the cross centers on the rail base for MAGLEV willbe obtained through two raster displacement sensors which are perpendicular to each other. So themachining datum position of the rail will be determined. According to the spatial position relationshipbetween the straight movement error of the guideway on the numerical control machine tools and thecentral line of the rail base for MAGLEV, error compensation will be made to improve the machiningprecision in the process of the numerical control machining. The mechanism design theory of themeasuring system is presented in this paper. On basis of both the design theory and the softwareplatform of LabWindows/CVI, the virtual measurement system for measuring straight movementerror of the rail on the numerical control machine tool, which is used to machining the rail base forMAGLEV will be established
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.532-533.592.pdf
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