Roman Kameník’s research while affiliated with University of Žilina and other places

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Publications (4)


Table 1 Chemical properties TiGr5 (ASTM F67)
Table 2 . Factors and levels used in the experiment
Table 3 . Achievement attributes from experiments Tc
Identification of Tool Wear Intensity During Miniature Machining of Austenitic Steels and Titanium
  • Article
  • Full-text available

December 2017

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376 Reads

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7 Citations

Procedia Engineering

Roman Kameník

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Jozef Pilc

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Daniel Varga

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Implementation and contribution of miniature machining is currently rapidly increasing in biomedical industry, machining of austenitic steels and titanium particularly. Machinability of materials with increased level of toughness depends on factors that are important in the final state of surface integrity. There are requirements for high precision in miniature machining with measures varying in microns. If we want to guarantee machining precision, it is necessarry to identify tool wear intensity in interaction with given materials. During long-term cutting process, different cutting wedge deformations occur, leading in most cases to a rapid wear and destruction of the cutting wedge. The article deald with experimental monitoring of tool wear intensity during miniature machining.

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Identification of Surface Characteristics Created by Miniature Machining of Dental Implants Made of Titanium Based Materials

December 2017

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906 Reads

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15 Citations

Procedia Engineering

One of the most important characteristic of dental implant made of biomaterials is ability to create correct interaction between implant and bone tissue. Since most of the implant surface is in direct contact with bone tissue, shape and integrity of said surface has great influence on successful osseointegration. The most implemented material in manufacturing of dental implants is titanium of different grades of pureness. Among other characteristics that predetermine titanium as ideal biomaterial, titanium shows high mechanical strength making precise miniature machining increasingly difficult. The article deals with resulting quality, integrity and characteristics of dental implants surface after machining.


Figure 2. Cutting tool DCMT 11 T3 04-PM 4315
Figure 4. One of manufactured samples of experimental dental implant Subsequent measurement of the crestal module surface roughness was performed on roughness tester SJ400.
Non-Destructive Analysis of Basic Surface Characteristics of Titanium Dental Implants Made by Miniature Machining

December 2016

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86 Reads

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3 Citations

Technological Engineering

One of the most best-known characteristic and important requirement of dental implant is made of biomaterials ability to create correct interaction between implant and human body. The most implemented material in manufacturing of dental implants is titanium of different grades of pureness. Since most of the implant surface is in direct contact with bone tissue, shape and integrity of said surface has great influence on the successful osseointegration. Among other characteristics of titanium that predetermine ideal biomaterial, it shows a high mechanical strength making precise machining miniature Increasingly difficult. The article is focused on evaluation of the resulting quality, integrity and characteristics of dental implants surface after machining.


Identification of Tool Wear when Machining of Austenitic Steels and Titatium by Miniature Machining

December 2016

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29 Reads

Technological Engineering

Application of miniature machining is currently rapidly increasing mainly in biomedical industry and machining of hard-to-machine materials. Machinability of materials with increased level of toughness depends on factors that are important in the final state of surface integrity. Because of this, it is necessary to achieve high precision (varying in microns) in miniature machining. If we want to guarantee machining high precision, it is necessary to analyse tool wear intensity in direct interaction with given machined materials. During long-term cutting process, different cutting wedge deformations occur, leading in most cases to a rapid wear and destruction of the cutting wedge. This article deal with experimental monitoring of tool wear intensity during miniature machining.

Citations (3)


... Pimenov et al. adequately assessed and designed mathematical models of elastic displacements of the technological system under face milling processes (workpiece material, cutting speed, cutting depth, the main cutting-edge angle, the cutter overhang to its diameter ratio, feed per tooth) for different values of tool flank wear on the flank surface. They used GF2171S5 milling machine's compliances of the Angular compliances of the spindle assembly technological system [67]. ...

Reference:

A Review on Cutting Tool Optimization Approaches
Identification of Tool Wear Intensity During Miniature Machining of Austenitic Steels and Titanium

Procedia Engineering

... A large number of surface treatment processes are available to alter surface topography of Ti implants. In this study, we used industrial machining (milling) for creating different range of roughness [32]. Implant dentistry has for many years focused on studying the bone-implant interface, looking for the most suitable contact to prevent the development and progression of periimplant disease [33]. ...

Identification of Surface Characteristics Created by Miniature Machining of Dental Implants Made of Titanium Based Materials

Procedia Engineering

... Surface treatment improves the direct contact between human bone and implant, which results in better osseointegration. Implant surface plays a vital role in the success of implantation; hence, the control of surface characteristics during manufacturing needs research attention [11,12]. Biocompatibility test with Ti-6Al-7Nb alloy in the presence and absence of hydroxyapatite coating reveals that Ti-6Al-7Nb alloy provides proper integration with tissues even without coating [13]. ...

Non-Destructive Analysis of Basic Surface Characteristics of Titanium Dental Implants Made by Miniature Machining

Technological Engineering