A5040387847- Advanced machining processes and optimization
- Engineering Technology and Methodologies
- Metal Alloys Wear and Properties
- Advanced Machining and Optimization Techniques
- Manufacturing Process and Optimization
- Surface Treatment and Coatings
- Mechanical and Thermal Properties Analysis
- High-Temperature Coating Behaviors
- Advanced Surface Polishing Techniques
- Education, Psychology, and Social Research
- Tunneling and Rock Mechanics
- Erosion and Abrasive Machining
- Advanced materials and composites
- Surface Treatment and Residual Stress
- Tribology and Lubrication Engineering
- Metallurgy and Material Forming
- Augmented Reality Applications
- Operations Management Techniques
- Metal and Thin Film Mechanics
- Modeling, Simulation, and Optimization
- Additive Manufacturing Materials and Processes
- Mechanical Systems and Engineering
- Assembly Line Balancing Optimization
- High Entropy Alloys Studies
University of West Bohemia
2014-2024
This article deals with the influence of cutting edge preparation and radius on tool life, forces roughness machined surface. The was done inserts wiper geometry which are used during machining dividing plane at a steam turbine casing. were prepared by technology grinding, drag finishing laser technology. for finished tools 5, 10 15 μm treated 5 μm. workpiece material ferrite – martensite steel content 9%Mo 1%Cr submicron sintered carbide. There only one insert in milling cutter.
The article is focused on the influence of cutting edge form factor, which usually marked as K, tool life and roughness machined surface during finishing milling. K factors were 0.55, 0.6, 1.6 2.5 made by drag method. rounding was 15 μm. There used a cutter head with just one indexable insert for machining. can answer to question, if factor help increase performance, because asymmetrical will be compared symmetric it means = 1. Tool prepared technology finishing.
Abstract The presented publication is focused on increasing the productivity and efficiency of machine production precision holes. Considerable attention was paid to influence pre-preparation drilling technology quality reamed hole. material selected for machining chromium-molybdenum steel 42CrMo4 QT. cluster analysis implemented evaluate experimental results obtained by measuring cylindricity surface roughness drilled factor hole in two levels, four levels. constant factors were carefully...
The aim of the paper was to examine influence cutting conditions on roughness surfaces machined by longitudinal turning, namely coated with Stellite 6 prepared high-velocity oxygen fuel (HVOF) technology and applied onto a standard structural steel substrate. From results measurements parameters, prediction model parameters created using mathematical statistical methods. Based more detailed analysis data comparison, new method for turning obtained. main identify mutual discrete relationships...
In this research, the authors set out to propose a new method of predicting and adjusting main cutting parameters chip machining, namely spraying on substrate. experiments, total 28 turning cuts Stellite 6 coating layer were realized. The base materials layers EN S235JRG1 carbide WC-Co. This work aimed find optimize influence different combinations parameters. Due solution, is focused evaluation roughness Ra (μm) turned substrate, grain size Dgr spraying, normal stress σrz (MPa), residual...
Nowadays, one of the motive trend in engineering industry is transportation and manipulating technology. The hydrostatic mechanisms belong to most important components are created by hydraulic engines, pumps, switchgears etc. Inseparable part engine a servo-valve which coordinates fluid flow microscopic movement piston. casting, usually made ductile cast-iron that necessary machine. functionality circuits influenced significantly precise pistons.Therefore it provide dimension accuracy,...
High-speed cutting (HSC) or high-speed machining (HSM) is an issue that the scientists deals with in long-term. To demonstrate explicitness, a full HSC process considered, it necessary to monitor series of factors. In particular, chip formation, forces, temperature, vibration, tool life and surface finish quality relation method machining, machined material its properties. The article detailed analysis evaluation formation order determine hard area, transition area veritable machining. based...
Current research studies devoted to cutting forces in drilling are oriented toward predictive model development, however, the case of mechanistic models, material effect on process itself is mostly not considered. This study aims experimentally analyze how machined affects feed force (Ff) during drilling, alongside developing mathematical-statistical models understand main effects and interactions considered technological tool factors Ff. By conducting experiments involving six (feed, speed,...
The high-velocity oxy-fuel spraying process was used to investigate and improve the surface properties of a workpiece. research focused on spherical workpiece made high-strength steel, ball socket assembly. After with nickel alloy, machined by milling. coating carried out as in which very thin layer required thickness specific properties, i.e., high Vickers hardness, adhesion surface, wear resistance other important characteristics, must be respected machining methods, applied already...
The objective of this paper is to present a new way identifying and predicting the relationship between thermodynamic physical-mechanical parameters in formation layer after spraying on substrate with NiCrBSi alloy its subsequent processing by milling. milling spherical surface EN 10060 material was performed DMU 40 eVolinear linear centre. experimental part article focused investigating influence cutting when machining selected combination materials (substrate-coating: steel-NiCrBSi alloy)....
This article describes an efficiency increasing of the monitoring activities in manufacturing workshop laboratory at university, where is required operational capacity planning machines management and ensuring necessary number a human resources according to ISO 9001 requirements. There analyzed possibility software integration for improvement laboratories, production resources. The documented application selected as well. In conclusion mentioned evaluation benefits.
Abstract The topic of producing accurate holes (IT6 and better) has been often discussed these days. Many research projects have started under the Department Technology Machining, Faculty Engineering at University West Bohemia in Pilsen. These are focused on measuring influence defined factors machining required quality, i.e. integrity hole surface. first phase was issues parameters drilling technology, which almost always comes before reaming technology. This text explores this study,...
Abstract The presented paper is devoted to the basic influences of cutting conditions on parameters roughness surface machined by longitudinal turning; investigated was before machining modified technology thermal spraying. High-speed Oxy-Fuel (HVOF) sprays, in particular, Stellite 6 sprays based Cobalt and Chromium alloy, are widely used industry thanks their excellent mechanical properties, wear resistance, corrosion resistance good temperature stability comparison with steel for example....