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Projects / Programmes source: ARIS

Development and implementation of cryogenic machining into serial production industry for increasing productivity of drilling and milling processes

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Research activity

Code Science Field Subfield
2.10.00  Engineering sciences and technologies  Manufacturing technologies and systems   

Code Science Field
T130  Technological sciences  Production technology 

Code Science Field
2.03  Engineering and Technology  Mechanical engineering 
Keywords
Implementation, Cryogenic Machining, Drilling, Milling, Serial Production
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 (16)
no. Code Name and surname Research area Role Period No. of publications
1.  34843  Jana Čebašek  Economics  Researcher  2017  0 
2.  38903  Jaka Dugar  Manufacturing technologies and systems  Researcher  2017 - 2020  43 
3.  36195  PhD Pero Gatarić  Energy engineering  Researcher  2019  81 
4.  39528  PhD Jurij Gostiša  Process engineering  Researcher  2019  72 
5.  27923  Matjaž Hafner  Manufacturing technologies and systems  Researcher  2017 - 2020  0 
6.  35396  PhD David Homar  Manufacturing technologies and systems  Junior researcher  2017  54 
7.  30322  Marjan Hudoklin  Manufacturing technologies and systems  Researcher  2017 - 2020  0 
8.  50688  PhD Awais Ikram  Manufacturing technologies and systems  Researcher  2019 - 2020  30 
9.  37944  Marija Jeretina    Technical associate  2017 - 2020  0 
10.  50820  Matjaž Kern  Manufacturing technologies and systems  Junior researcher  2018 - 2020  37 
11.  05657  Ivan Kralj  Manufacturing technologies and systems  Researcher  2017 - 2020  0 
12.  17076  PhD Davorin Kramar  Manufacturing technologies and systems  Researcher  2017 - 2020  448 
13.  26559  PhD Franci Pušavec  Manufacturing technologies and systems  Head  2017 - 2020  610 
14.  18047  Vinko Rotar    Technical associate  2017  38 
15.  22942  Boštjan Šifrar  Manufacturing technologies and systems  Researcher  2017 - 2020  0 
16.  30110  Miha Štucin  Manufacturing technologies and systems  Researcher  2017 - 2020  0 
Organisations (3)
no. Code Research organisation City Registration number No. of publications
1.  0782  University of Ljubljana, Faculty of Mechanical Engineering  Ljubljana  1627031  29,223 
2.  1558  AREX, The Production of Implements, Appliances and Accomplishment  Šentjernej  5383510000  0 
3.  1713  SIBO GROUP Packaging development and Production LTD  Škofja Loka  5316804  0 
Abstract
EU support the researches and the implementation of various applications in the field of sustainable development and sustainable production and seeks to reduce environmental pollution. For this targets have been set, known as the "20-20-20" targets that set three key objectives for 2020: (1) a 20% reduction in EU greenhouse gas emissions from 1990 levels; (2) raising the share of EU energy consumption produced from renewable resources to 20%; (3) a 20% improvement in the EU's energy efficiency. One way to approach this goal is to apply sustainability principles into the manufacturing - machining processes and technologies, and overall enhance them via reduced energy consumption, lower environmental pollution, more efficient production, and better quality of final product respectively with implementation of the cryogenic machining.   Medical, pharmaceutical and military industrial innovations, from companies SIBO G - packaging development and production and AREX - production of tools, devices and services, are results of Slovenian knowledge and represent revolutionary innovations in each field. Currently are both companies, despite the different industrial orientation, confronted with similar problems caused by the conventional method of machining (in cases of process milling and drilling) with oil based emulsions. In conventional machining, wherein the oil based emulsions have cooling and lubricating effect and afterwards leave the surface of the workpiece covered with oil, the emulsion is used in a closed circuit/system. In this case the system must be able, despite feeding with emulsion, to clean, dry and protect against corrosion the workpiece after the process is done. General central supply system includes separators for the removal of chips and the unit for the fine cleaning (filters, etc.). In addition, such emulsions should be monitored and maintained, yet their stability is limited. The content of impurities is gradually increasing and may appear microbiological degradation of oil based emulsions, causing an unpleasant odor, sedimentation deposition in the pipeline, etc.   The companies want to avoid the above mentioned difficulties with the monitoring of oil based emulsions, and to achieve, with the implementation of LCO2 cryogenic machining, a clean and environmentally friendly nature and machining processes. In addition to dry and clean process, both companies want to take advantage of a number of other benefits. Increased tool life, improve the brittleness and evacuation of chip, improving the quality of the surface integrity, increasing cutting speeds and thus faster cutting, etc. are only a fraction of the advantages that cryogenic machining offers. So with the implementation of the cryogenic machining we get, not only pure machine process but also a cheaper manufacturing and increase in productivity.   Through the project we want to achieve, by both companies, with the implementation of the cryogenic LCO2 machining into the production our objectives and benefits of this type of technology. This will be achieved through the implementation of 6 consecutive work packages (WP), which will follow each other in time respectively. For easier planning and project management WP are divided into three successive phases: Phase 1: start of the project - preparation: preparation and purchase of equipment for cryogenic LCO2 milling and drilling: - WP1: Mechanical specifications for equipping/upgrading an existing machine technology - WP2: Manufacture and supply of the equipment for upgrading machinery Phase 2: the basic installation and optimization of the cryogenic LCO2 technology in the production of both companies: - WP3: Upgrading machines, commissioning and testing the cryogenic technology  -  WP4: Optimization and cutting parameters adjustment for achieving most efficient production Phase 3: final analysis - monitoring of economical, environmental and other benefits of implemented cryogenic technol
Significance for science
In Slovenia, there are many companies whose products or semi-finished products represent the result of Slovenian knowledge and a high level of innovation. Among such companies definitely falling also companies SIBO and AREX. In both companies, their main focus, besides development of new products, is thus also directed to the setup of production technologies and start-up of the mass production. Thus, the main objective is to find and develop, for their key products, more optimal/efficient production technology for improving productivity, quality, environmental and worker safety. The solution to upgrade existing technologies, in both cases, is expected through the implementation of cryogenic technology based on liquefied carbon dioxide LCO2 into a strategic Slovenian industry. In the processing/machining industry in Slovenia and elsewhere in Europe (and world), it is currently still the most commonly used conventional supply of the oil based emulsion, which in terms of impact on nature and health is more than problematic, and thus does not represent the future in the light of sustainable development. The development trend is oriented in a dry and clean machining with increased productivity and the quality of the treated surfaces. As a result, at this stage, the proposed cryogenic LCO2 technology with effective cooling, has a lot of relevance and potential to achieve these objectives. Through behavioural analysis and the possibility of technology implementation into a serial production, the results of this project contribute to a better understanding of the cryogenic LCO2 machining, which would enable the realization of the technology implementation into a serial production. This would help, not only to SIBO and AREX, but also to other Slovenian companies (including SME's), which are engaged in machining, to have the potential to raise productivity and ultimately competitiveness in the global market. It is evident and expected that the potential impact of the results is very large and that, in the long term, the results can be of great importance for the Slovenian economy.
Significance for the country
For the most accurate production there is still in most cases used conventional machining with oil based emulsion which has many negative effects on the environment, as well as to humans.   In conventional machining, wherein the oil based emulsions have cooling and lubricating effect and afterwards leave the surface of the workpiece covered with oil, the emulsion is used in a closed circuit/system. In this case the system must be able, despite feeding with emulsion, to clean, dry and protect against corrosion the workpiece after the process is done. General central supply system includes separators for the removal of chips and the unit for the fine cleaning (filters, etc.). In addition, such emulsions should be monitored and maintained, yet their stability is limited. The content of impurities is gradually increasing and may appear microbiological degradation of oil based emulsions, causing an unpleasant odor, sedimentation deposition in the pipeline, health harmfulness (dermatitis, etc.), etc.   The companies want to avoid the above mentioned difficulties with the monitoring of oil based emulsions, and to achieve, with the implementation of LCO2 cryogenic machining, a clean and environmentally friendly nature and machining processes. And all that having also an increased performance of these processes.   The main economical and social contribution of this project is to implement cryogenic LCO2 machining into a Slovenian industry. So with this we will achieve a clean and environmentally friendly and sustainable cutting processes and also take advantages of this kind type of machining in terms of increasing productivity and hence competitiveness in the demanding global market. All this will be able to achieve over planned specific objectives: -  implementation of the cryogenic LCO2 machining which represent sustainable development and thus successful replacement of current conventional machining with oil based emulsions and so: + reduce the ecological footprint of machining processes, + increase productivity by increasing cutting speeds, as a result of reduced tool wear and longer tool life, + reduce costs in regular production, due to the extension of tool life, dry and clean process, and thus without the need for additional machine, workpiece and working environment cleaning and unnecessary recycling emulsions, -   after successful transition into a serial production, an additional objective of the process is to make it flexible for use in a wide range of machining centres, which would allow the application to a wider range of SME industry in future and also for processing less demanding products, while ensuring increased productivity.
Most important scientific results Interim report, final report
Most important socioeconomically and culturally relevant results Interim report, final report
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