Suche nach „[J.] [Slabeycius]“ hat 11 Publikationen gefunden

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Zeitschriftenartikel

Andreas Geiss, Rolf Rascher, J. Slabeycius, Markus Schinhärl, Peter Sperber, K. Fathima

Material removal study at silicon nitride molds for the precision glass molding using MRF process

Current Developments in Lens Design and Optical Engineering IX, vol. 7060, no. August

2008

DOI: 10.1117/12.794583

Abstract anzeigen

High-technology applications which are using high precision optic components in high and medium quantities have increased during recent years. One possibility to mass-produce e.g. such lenses is the precision glass molding (PGM) process. Especially for aspheric and free-form elements the PGM process has certain advantages. Premise is to manufacture accurate press molds, which have to feature smaller figure errors as the required lenses and may be made of materials, which are difficult to machine, like silicon nitride ceramics. These work pieces have to be machined in economical and steady process chains. However, due to the complex shapes and the corresponding accuracy an error dependent polishing is required. The Magnetorheological Finishing (MRF) as a high precision computer controlled polishing (CCP) technique is used and will further be presented in this work. To achieve the postulated demands a previous study of the material removal at selected machining parameters is needed. Changing machining parameters modify the removal, which is presented through values like the peak and volume removal rate. The value changes during the controlled variation of process parameters are described and discussed. Magnetorheological Finishing (MRF) provides one of the best methods to finish PGM molds that are relatively inaccurate to high precision in an economical, steady and efficient way. This work indicates the MRF removal selection and removal interference for the correction and finishing of precise silicon nitride molds for the precision glass molding.

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Beitrag (Sammelband oder Tagungsband)

Andreas Geiss, J. Slabeycius, Rolf Rascher, Markus Schinhärl, Peter Sperber, K. Fathima

Material influence of silicon nitride at Magnetorheological Finishing (MRF)

Proceedings of the 12th International Research/Expert Conference ”Trends in the Development of Machinery and Associated Technology” TMT 2008, Istanbul, Türkei, 26.-30.08.2008

2008

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Beitrag (Sammelband oder Tagungsband)

Andreas Geiss, K. Fathima, J. Slabeycius, L. Hajduchova, Rolf Rascher, Peter Sperber, Markus Schinhärl

Examination of surface and subsurface damages on silicon wafers using dimple polishing

Proceedings of the 13th International Conference on Problems of Material Engineering, Mechanics and Design, Rajeke, Slowakei, 26.-29.08.2008

2008

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Beitrag (Sammelband oder Tagungsband)

Andreas Geiss, Markus Schinhärl, Rolf Rascher, Peter Sperber, J. Slabeycius, K. Fathima, Christian Vogt

Magnetorheological Finishing of silicon nitride moulds

Proceedings of the 10th Anniversary International Conference of the European Society of Precision Engineering and Nanotechnology, Zürich, Schweiz, Volume 2

2008

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Elektrotechnik und MedientechnikF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Vortrag

Andreas Geiss, Markus Schinhärl, Elmar Pitschke, Rolf Rascher, Peter Sperber, K. Fathima, J. Slabeycius

Subsurface damages detecting on standard optical glass by dimple method

The 12th International Conference on Problems of Material Engineering, Mechanics and Design, Jasna, Slowakei

2007

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Elektrotechnik und MedientechnikF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Beitrag (Sammelband oder Tagungsband)

Andreas Geiss, Markus Schinhärl, Elmar Pitschke, Rolf Rascher, Peter Sperber, K. Fathima, J. Slabeycius

Subsurface damages detecting on standard optical glass by dimple method

Proceedings of the 12th International Conference on Problems of Material Engineering, Mechanics and Design, Jasna, Slowakei

2007

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Elektrotechnik und MedientechnikF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Beitrag (Sammelband oder Tagungsband)

Andreas Geiss, Markus Schinhärl, Elmar Pitschke, K. Fathima, Rolf Rascher, Peter Sperber, J. Slabeycius

Correcting silicon carbide and silicon nitride moulds by Magnetorheological Finishing

Proceedings of the 7th euspen International Conference, Bremen, Vol. 2

2007

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Elektrotechnik und MedientechnikF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Vortrag

Andreas Geiss, Markus Schinhärl, Elmar Pitschke, Rolf Rascher, Peter Sperber, J. Slabeycius

Sedimentations on high-precision surfaces of advanced materials by magnetorheological finishing

Current Developments in Lens Design and Optical Engineering VII, San Diego, CA, USA

2006

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Elektrotechnik und MedientechnikF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Vortrag

Andreas Geiss, Markus Schinhärl, Elmar Pitschke, Rolf Rascher, Peter Sperber, J. Slabeycius

Deposits and damages on high precision surfaces of advanced materials

5th Youth Symposium on Experimental Solid Mechanics, Puchov, Slowakei

2006

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Elektrotechnik und MedientechnikF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Zeitschriftenartikel

Andreas Geiss, Markus Schinhärl, Elmar Pitschke, Rolf Rascher, Peter Sperber, J. Slabeycius

Sedimentations on high-precision surfaces of advanced materials by magnetorheological finishing

Current Developments in Lens Design and Optical Engineering VII, vol. 6288

2006

Abstract anzeigen

Magnetorheological finishing (MRF) is a computer controlled polishing (CCP) technique for high precision surfaces. The process uses a magnetorheological fluid which stiffens in a magnetic field and thus acts as the polishing tool. A standard MR fluid consists of magnetic carbonyl iron (CI) particles, nonmagnetic polishing abrasives and liquid. To delaying oxidation of the iron particles and avoiding agglomeration the liquid consists of water completed with stabilizers. For the material removal and smoothing of the surface mostly cerium oxide or diamond is used. The materials to be polished may tend toward to different sedimentations of the MR fluid on the machined surface. These sedimentations result from the machining and may develop a polishing layer with MR fluid components. At the University of Applied Sciences Deggendorf analysis of the machined surface are made by the scanning electronic microscope (SEM) to determine the sedimentations of the finishing. The results of the research display the influence for the surface properties due to developing polishing layer by magnetorheological finishing.

F: Angewandte Naturwissenschaften und WirtschaftsingenieurwesenF: Elektrotechnik und MedientechnikF: Maschinenbau und MechatronikI: Hochschulleitung und -einrichtungen

Beitrag (Sammelband oder Tagungsband)

Andreas Geiss, Markus Schinhärl, Elmar Pitschke, Rolf Rascher, Peter Sperber, J. Slabeycius

Deposits and damages on high precision surfaces of advanced materials

Proceedings of the 5th Youth Symposium on Experimental Solid Mechanics, Puchov, Slowakei

2006