Projects / Programmes
Influence of surface texturing and topography on the dynamic properties of the coated tool steels
| Code |
Science |
Field |
Subfield |
| 2.11.00 |
Engineering sciences and technologies |
Mechanical design |
|
| Code |
Science |
Field |
| T210 |
Technological sciences |
Mechanical engineering, hydraulics, vacuum technology, vibration and acoustic engineering |
| Code |
Science |
Field |
| 2.03 |
Engineering and Technology |
Mechanical engineering |
precision punching, surface texturing, hard protective coatings, surface irregularities, dynamic fatigue, friction, wear, engineering of tribological surfaces, ecology
Researchers (1)
| no. |
Code |
Name and surname |
Research area |
Role |
Period |
No. of publicationsNo. of publications |
| 1. |
26237 |
PhD Marko Sedlaček |
Materials science and technology |
Head |
2014 - 2016 |
0 |
Organisations (1)
Abstract
The essence of this project is to investigate the influence of surface irregularities, surface texturing, roughness and surface topography on the dynamic characteristics of coated steel for precision punching tools. The proposed target of applicative product is a great market opportunity for the co-financer and its suppliers and the wider Slovenian economy in general. Based on the results of the research we will develop a new concept of surface engineering precision punching tools and optimize operation of coated tools for precision punching in the demanding conditions of dynamic impact loading with a focus on better quality of the punched surfaces, increased life expectancy of cutting elements and the use of environmentally less burdensome oils.
The aim of this project is to develop a quality, durable tools for precision punching of ensuring a better quality of cut surfaces, longer service life, allow processing of thicker and harder materials and manufacture more complex shapes while using environmentally less burdensome oils. This will be done iteratively using dynamic tests, where we will examine the impact of dynamic fatigue on textured coated surface, because the punching tools is exposed to high impact dynamic loads, which is a much more complex stress state, which modified surfaces must withstand without damage or collapse and modelling of stress and strain states predicting the durability of tools and optimization of key sliding surfaces with an emphasis on examining the influence of surface texturing and hard coatings on the stress-strain state and life expectancy.
The third part of the project will be intended to define the tribological properties of textured coatings which were in the first and second stage recognised as the most suitable from the point of dynamic fatigue. For this purpose, we will develop a simplified punching tool (cylindrical shape) with a coating and a certain surface texturing pattern. By monitoring the penetration and pull-out force of the tool through a sheet of high strength steels (AHSS) of different thicknesses and compared with forces of uncoated and untextured tools what will enable us the selection of optimal combinations in terms of tribological properties.
After selecting the most appropriate materials and texturing parameters we will make a final stamping tool, and in the last phase of the project test it in the industry (at co-financer) and compared the results with existing tools.
Summary: Using interdisciplinary approaches and innovative technologies, materials and expertise we will develop a new concept of surface engineering precision punching tools, which will be new to the market and promising business opportunity for co-financer, its suppliers and the Slovenian economy.
Significance for science
Project has an outstanding (i) scientific importance, since there are no comparable studies that would combine the knowledge of fatigue, tribology and surface engineering needed to resolve the contact problem and therefore the functionality of the fine blanking tools. At the same time, because of the support and cooperation of the company (cofinancier) the relevance is great (ii) since the company has acquired the technological advantage, which is not yet available on the market and by filling a niche this has potentially large economic impacts. At the same time the development of new fine blanking tools in a global sense is (iii) reduce the use of lubricants and extend the life of tools, thus contributing to the development of environmentally friendly technologies that are today, and even more so in the near future, essential.
Significance for the country
Goal of the project was to transfer scientific findings of the project and acquired knowledge into practice. Results of model tests and numerical simulations were verified on simplified fine blanking tool. The findings can be used in a real mechanical application in Slovenia. Introduction of surface texturing and hard coatings can result in possible energy saving, longer life expectancy and reduced consumption of lubricants. Knowledge is useful not only in the field of fine blanking but also in the field of electro sheet stamping, which is largely implemented in the industry. On the other hand, introduction of surface engineering technology represents one of the methods to increase competitiveness of small and middle sized companies, which prevail in the Slovene economy. Small and middle sized companies can’t compete with big corporations in the area of mass production of basic components. However, they can compete with the production, which is based on knowledge and innovatively of surface engineering. In addition, the project was aimed to use existing resources (hardware, technology, etc.), available at the cofinancer (Hidria Rotomatika). It is also an example of good practice, since the project integrates knowledge, experience and potentials of the Institute with the potential and the targets of the manufacturing company. It is expected that the project will have a positive impact on the higher added value and the greater visibility of Slovenia on the global market.
Most important scientific results
Annual report
2014,
2015,
final report
Most important socioeconomically and culturally relevant results
Annual report
2015,
final report
