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Tool life of ADMX inserts for milling of the S-grade materials
Tejkl, Jakub ; Kouřil, Miroslav (referee) ; Píška, Miroslav (advisor)
This diploma thesis studies the machining of group S materials. In the theoretical part of this thesis these materials were divided into groups and subsequently analyzed. These materials were also analyzed in terms of their impaired machinability. In the practical part of this thesis experimental tests were conducted to determine tool life, tool wear and in the case of testing titanium alloy surface roughness too.
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Machining of difficult machinable materials
Perončík, Martin ; Novák, Zdeněk (referee) ; Humár, Anton (advisor)
Diploma thesis is specialized to solving of problems machining of diffi-cult machinable materials. There is carried out the analysis of difficult machinable materials in term of chemical composition, physical and mechanical properties. In the following it deals with analysis of machining, specification of geometry, material of cutting tools and cutting conditions.
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Machining of hard-to-machine materials
Tejkl, Jakub ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
This bachelor thesis studies the machining of hard-to-machine materials. The first part of the thesis considers hard-to-machine materials and analyses them. The next part of the study focuses on individual alloy machinability issues. The final section of the thesis is devoted to experiment, statistical analysis and subsequently to its evaluation.
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Mechanical properties of plasma sprayed layers of NiAl10 and NiAl40 on AZ91 alloy
Kubatík, Tomáš František ; Brodil, R. ; Ctibor, Pavel ; Průša, F. ; Brožek, Vlastimil
In this work, plasma coatings of NiAl10 and NiAl40 on magnesium alloy AZ91 substrate were prepared by the hybrid plasma spraying system WSP®-H 500. The both plasma sprayed coatings of NiAl10 and NiAl40 have metallurgical bond. The thicknesses of microstructures in the cross-section of NiAl10 and NiAl40 plasma sprayed coatings prepared by 9 passes were 374 and 440 μm respectively. Adhesion test of plasma sprayed layers was performed using a modified ASTM C 633 standard. The tensile adhesion strength values are 24.7 MPa for NiAl10 coatings and 12.3 MPa for NiAl40 coatings. Abrasion resistance according to Slurry Abrasion Response (SAR) test of NiAl40 layers had similar values (0.12 g/cm2)in a comparison with the uncoated AZ91 (0.126 g/cm2). Layers NiAl10 had greater weight losses (0.175 g/cm2) than uncoated AZ91. Microhardness of plasma coating of NiAl40 is several times greater than microhardnesses of plasma coating of NiAl10 and uncoated substrate AZ91
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Tool life of ADMX inserts for milling of the S-grade materials
Tejkl, Jakub ; Kouřil, Miroslav (referee) ; Píška, Miroslav (advisor)
This diploma thesis studies the machining of group S materials. In the theoretical part of this thesis these materials were divided into groups and subsequently analyzed. These materials were also analyzed in terms of their impaired machinability. In the practical part of this thesis experimental tests were conducted to determine tool life, tool wear and in the case of testing titanium alloy surface roughness too.
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Machining of difficult machinable materials
Perončík, Martin ; Novák, Zdeněk (referee) ; Humár, Anton (advisor)
Diploma thesis is specialized to solving of problems machining of diffi-cult machinable materials. There is carried out the analysis of difficult machinable materials in term of chemical composition, physical and mechanical properties. In the following it deals with analysis of machining, specification of geometry, material of cutting tools and cutting conditions.
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