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Projects / Programmes source: ARIS

IInnovative production systems

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Periods
January 1, 2009 - December 31, 2013
Research activity

Code Science Field Subfield
2.10.00  Engineering sciences and technologies  Manufacturing technologies and systems   
1.07.00  Natural sciences and mathematics  Computer intensive methods and applications   

Code Science Field
T130  Technological sciences  Production technology 

Code Science Field
2.11  Engineering and Technology  Other engineering and technologies 
Keywords
production processes, forming, assembly, metrology, process identification, process modelling, process simulation, logistics in production, tools, machines and devices, control of manufacturing processes and systems, adaptive control, technology knowledge base, decision algorithms
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (26)
no. Code Name and surname Research area Role Period No. of publications
1.  29052  Edo Adrović    Technical associate  2009 - 2013  0 
2.  26038  PhD Oki Blatnik  Manufacturing technologies and systems  Junior researcher  2009  0 
3.  29935  Mladen Cvjetičanin  Process engineering  Technical associate  2009 - 2012  0 
4.  21232  PhD Mihael Debevec  Manufacturing technologies and systems  Researcher  2010 - 2013  0 
5.  15695  PhD Gašper Gantar  Manufacturing technologies and systems  Researcher  2012 - 2013  0 
6.  10499  PhD Niko Herakovič  Mechanical design  Researcher  2009 - 2013  0 
7.  34809  Marko Ivanušič    Technical associate  2012  0 
8.  33239  PhD Marko Jerman  Manufacturing technologies and systems  Junior researcher  2010 - 2013  0 
9.  09006  PhD Mihael Junkar  Manufacturing technologies and systems  Head  2009 - 2013  0 
10.  05911  PhD Zlatko Kampuš  Manufacturing technologies and systems  Researcher  2009 - 2012  0 
11.  00807  PhD Karl Kuzman  Manufacturing technologies and systems  Researcher  2009 - 2012  11 
12.  12260  PhD Andrej Lebar  Manufacturing technologies and systems  Researcher  2009 - 2013  0 
13.  34022  Nejc Matjaž    Technical associate  2012 - 2013  0 
14.  07125  PhD Peter Metlikovič  Manufacturing technologies and systems  Researcher  2011 - 2013  0 
15.  16005  PhD Blaž Nardin  Manufacturing technologies and systems  Researcher  2009 - 2013  0 
16.  03553  PhD Dragica Noe  Manufacturing technologies and systems  Researcher  2009 - 2011  0 
17.  23469  PhD Henri Orbanić  Manufacturing technologies and systems  Researcher  2009 - 2013  0 
18.  12957  PhD Tomaž Pepelnjak  Manufacturing technologies and systems  Researcher  2009 - 2013  0 
19.  25464  PhD Aleš Petek  Manufacturing technologies and systems  Researcher  2009 - 2011  0 
20.  17999  Matjaž Rot    Technical associate  2009 - 2013  0 
21.  21774  PhD Darja Rupnik Poklukar  Mathematics  Researcher  2009  0 
22.  30912  PhD Izidor Sabotin  Manufacturing technologies and systems  Junior researcher  2009 - 2013  0 
23.  31322  PhD Marko Šimic  Manufacturing technologies and systems  Researcher  2009 - 2013  0 
24.  24906  PhD Gašper Šušteršič  Mechanical design  Researcher  2013  0 
25.  13182  PhD Francelj Trdič  Computer science and informatics  Researcher  2009 - 2012  0 
26.  18553  PhD Joško Valentinčič  Manufacturing technologies and systems  Researcher  2009 - 2013  0 
Organisations (2)
no. Code Research organisation City Registration number No. of publications
1.  0782  University of Ljubljana, Faculty of Mechanical Engineering  Ljubljana  1627031  0 
2.  7639  Gorenje Orodjarna, d.o.o. (Slovene)  Velenje  5735378  0 
Abstract
Global economy (and Slovenia as its part as well) creates also in the field of manufacturing processes new working conditions. These conditions are based mainly in linkage as well as intensive use of existing and development of new knowledge and fast adaptation in dynamically environment. The competitive position of production depend on use of new solutions based on existing systems and introduction of totally new and innovative products and services - INNOVATIVE PRODUCTION SYSTEMS - I2S. I2S have to be based on constant communications between real production system (MPx) and digital one which is mainly computer based (CAx). Both systems use knowledge and experiences from the knowledge base (CBS), which will be refined after the evaluation as well.
Significance for science
A high scientific contribution of the research work presents the development of the mathematical and simulation model of the digital piezo actuator inserted into the hydraulic valve. That kind of model cannot be found in the previous research works worldwide. All major influential parameters are considered in the mathematical and simulation model. The very deep mathematical approach included in all models, allows us to simulate similar piezo valves or other components concerning the hydraulic applications. Developed models and simulation performing provide a very useful tool for learning and training top professionals and researchers in the field of production planning and designing of production systems. For these researchers the models and simulations ensure a test environment in which the users test their acquired research results. On the field of microtechnologies two new concepts of electrode wear acquisition in micro EDM milling were established and verified. The wear compensation was demonstrated on the machine. Comparing with commercially available solutions both concepts enables more accurate compensation of tool wear with less interruptions of the machining process. It was proven that characterisation of discharge pulse population and counting of discharges is sufficient for electrode wear prediction. A new microreactor system unit has been developed. The most important functional unit of the microreactor is micromixer. Micromixer was designed using FEM numerical modelling that implements fluid dynamics with convection-diffusion physics. A new design of a micromixer was developed that is very efficient in mixing liquids in laminar flow and it is suitable for mass production. The newly designed microreactor unit was tested with the ionic liquids synthesis. The results show much better synthesis efficiency with respect to established synthesis routes. Furthermore, the final product is much cleaner as compared to established synthesis procedures. By this the advantages of microstructured reactor systems were demonstrated in chemical process industry. Important research work was done on the technology of Ice Abrasive Water Jet (IAWJ) cutting. In this technology mineral abrasive is replaced with ice grains that melt away after the machining, leaving the work-piece uncontaminated. Several different approaches to this technology were studied and applied during the development of a prototype for ice jet machining. Water can be a) frozen either at ambient pressure to generate the ice, or b) cooled far below 0 oC at very high pressure and frozen due to Joule-Thompson effect when exposed to the ambient pressure. By FEM and validated by experiments it was found, that due to the friction and work done upon the water the latter approach b) is not fruitful. It was also found that insertion of ice grains approach a) in synergy with elements of b) approach can derive functional device. In the field of metal forming a new incremental forming concept was developed which enables hauls of necks and side extracts on geometric complex products in the production of prototypes and small series. All influential technologic parameters affecting the applicability of the presented technology were considered during the process evaluation. Implementation of this technology is combined also with determination of forming limit curves (FLC). Improvements of existing methodology of Marciniak test used for determination FLC of thin sheet metals and foils were performed. Considering determination of forming properties of materials it was required to identify the shear stress-strain states in hot forging of Mg-alloy. The shear "hat test" was improved. In contrast to other authors the shear stress on the actual cross-section of a load was analysed. This enabled enhanced description of actual shear stress in the cross-section of analysed model test. Analyses were performed first in the digital environment and then verified by the experiments.
Significance for the country
We have developed a prototype for cutting with ice abrasive water jet (IAWJ) which is the latest research trend of abrasive water jet (AWJ) technology. The substitution of mineral abrasives with ice particles means cleaner technology, thus opening new windows of application such as food industry and medical applications. The developed prototype has already attracted the attention from some of European biggest food processing companies. However, it is necessary to overcome the high running costs of this technology as well as stabilize the process itself. Thus we are hoping to successfully apply for a bigger project inside Horizon 2020 scheme. The systems for on-line compensation of electrode tool wear in micro EDM milling were developed. Two new methods were developed that compensate electrode length wear on-line and thus enable higher machining accuracy. The system is ready to be implemented on the machine. In the second part, the research on microfluidic platform (microreactor) were conducted, which enables chemical synthesis processes in highly controlled environment. Cost effective microreactor units have been successfully tested in a laboratory environment. Higher productivity and more clean products were achieved compared to classical (batch) systems. We have designed and built a system for measuring the properties of whipped cream during the mixing process which stops the machine when the cream is done. We have also set up a non-destructive methodology for measuring sharpness of blades. Both systems are already in use by the Slovenian branch of BSH company in Nazarje. Furthermore, we have developed and implemented new measuring methods as well as an intelligent automated monitoring system for household appliances. New digital hydraulic valve DPVL-20 has much better dynamic characteristics comparing the other high-response valves existing on the world market. Therefore the new valve can be used in high-response hydraulic applications (positioners, assembly and handling systems, vibrating systems, etc…) where the fast response and precise positioning needs to be assured. The new piezo actuator, as standalone unit, can be used in mechanical position systems where the resolution under the micron can be achieved. The digital piezo valve can also be used as system for controlling the high frequency harmonic pressure force in the field of metal forming processes. The research work related in this field will be done in the next two years. Developed models and simulations provide a very useful tool for learning and training top professionals and researchers in the field of production planning and designing of production systems. For these researchers the models and simulations ensure a test environment in which the users test their acquired research results. For Slovenian industry the use of simulation means lower costs, less dead time and increased efficiency of production. At the same time through the simulations it is easier to evaluate planned production systems without interventions in the real production system and thus we avoid of potential damage causing on the real production systems. And the developed system for display the product structure on manual assembly workplace together with the introduction of lean production enable shortening the time of manual assembly in the Slovenian company for 50%. The new incremental forming technology has been successfully implemented in a number of Slovenian companies. With the development of technology and the definition of stable production conditions it is possible to develop applications in the field of building facade panels in order to increase the added value of the product and improving its strength by entering a pre-calculated structures in the sheet metal surface. Together with the company Trimo Forming Laboratory received the prestigious RedDot Industrial Design. With it, the recognition of the implemented technology and the Slovenian products was further increased.
Most important scientific results Annual report 2009, 2010, 2011, 2012, final report, complete report on dLib.si
Most important socioeconomically and culturally relevant results Annual report 2009, 2010, 2011, 2012, final report, complete report on dLib.si
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