The paper aims to study the surface quality dependency on selected parameters of cuts made in Hardox™ by abrasive water jet (AWJ). regression process was applied measured data and equations were prepared for both Ra Rz roughness parameters. One set relationship cutting parameters—pumping pressure, traverse speed, mass flow rate. second describes relationships between declination angle kerf as independent variable either or dependent variables. models can be used predict variables

In these days in foundry branch there is a rapid development of sectors special casting technology with the aim to increase quality and efficiency pressure production.. Internal homogeneity casting, characterized by extent porosity can be affected setup technological parameters last but not least vacuuming molds, that means exhaust air gases from mold cavity. Contribution specifically aimed on analyzing impact degassing molds casting.

Production of components, necessary for the construction machine resp. or device is a demanding manufacturing process. One possibilities increasing efficiency and production quality introduction unconventional technologies to Knowing dependence impact non-conventional on mechanical properties products their subsequent verification an important aspect when designing them. The article deals with used technology, that means laser, plasma water jet roughness cutting edge microhardness material S...

This paper deals with the coefficient of determination screw connection friction between thread and matrix. The was measured using a laboratory device an M20 without any grease and, subsequently, plastic added (CX80 silicone, lithium, copper grease). When is added, in threads heads limited consistently retained. tightening by torque, which represents prevailing assembly method standard screwing practice, only part torque effectively used to create axial force pre-stress. rest employed...

The paper also says about practical measuring geometrical deviations by commonly used tools. Also deals with an analysis of geometric deviations, reasons their generation and provides brief description. It points at ways abilities shape means contact contactless methods errors which can affect results measuring. evaluates analyses ability various devices. shows a review individual measured values thus view efficiency, simplicity accuracy devices methods.

The submitted paper deals with an analysis of geometric deviations, reasons their generation and provides brief description. It points at ways abilities measuring shape deviations by means contact contactless methods errors which can affect results measuring. papers also says about practical geometrical commonly used tools. evaluates analyses ability various devices. shows a review individual measured values thus view efficiency, simplicity accuracy

This paper describes of the principle differential on basis two-stage gear with one main input shaft and secondary two output shaft.

The mechanical properties of die castings correlate with the inner structure a casting, distribution eutectic phases, and content porous cavities in casting volume. This submitted paper deals issue possibility to influence basic parameters affecting quality through structural modifications gating system. parameter under assessment is gate height. In case diverse height gate, five sets were produced. individual subjected examination selected properties, i.e., permanent deformation surface...

Surface treatment technologies are pivotal across diverse industrial sectors such as mechanical engineering, electrical and the automotive industry. Continuous advancements in manufacturing processes geared towards bolstering efficiency attaining superior product quality. This study aimed to empirically compare practical outcomes with theoretical insights. Employing galvanic zinc plating under constant voltage varying durations unveiled a correlation between coating thickness electrolyte...

The submitted paper deals with laser welding of aluminium alloys the application computer support in process.Currently, represents one most common processes as it allows accepting high quality welds minimal thermal zone case diverse materials such steel, high-strength or titanium.The use for company is also very important process.To produce a successful product every modern must new methods production control and monitoring modelling, simulations, information processing [Mascenik 2014].This...

The article describes an automated production of process documentation in environment PTC Creo 3.0.Process is a simplified form technological documentation, which directly generated the comprehensive CAD-CAM-CAE system.Creation based on design templates that contain all necessary information to ensure smooth by operators.Generating takes place inputs received from proposal NC machining program.The main advantage creation its fast processing, possibility additional editing, archiving,...

The submitted paper deals with analyses of impact water jet technology head vibrations due to variations kinds and granularity abrasive during steel cutting manufacturing process using AWJ technology. points at necessity diagnose subsequently eliminate possible sources adversed vibrations. They can influence lifetime wear head, they lower reliability as well edge quality.

The aim of this study is to investigate and optimize the dynamic properties an entire structural unit. Using modal analysis experimental measurements propulsion system, natural frequencies with close agreement were identified. drive was able work within frequency range during start-up normal operation, but due various influences, including inherent oscillations elements, complex phenomena occurred. presence a conveyor rubber plastic wheels also affected results. Important information on...

The presented paper deals with the design proposal and application of program for calculation check chain gears.The computing has been created as a spreadsheet in working environment Microsoft Office by Excel through defined sequences individual commands.The serves drive means inserted databases, graphs tables.In process designing checking input values are entered such performance, rotations, number wheels.Through software generates speed chain, circumferential speed, tensile force, links,...

In the frame of injection moulding production process not all raw material creates final products and a waste is generated (defective rejected products, cold runners, etc.).This technological very often reused in production, which reduces costs, however, this regrind or regranulated affects properties part.The negative impact recycled presence depends on degree chain cleavage polymer macromolecules caused by high temperature load.The deterioration product end-use does have to be demonstrated...

Abstract The article presents the results of literature research in field Technology Assessment (TA). In particular, attention was focused on searching for trends determining directions development this area. Research gaps constituting basis undertaking new cognitive challenges were identified. As a method, systematic review adopted, methodology which described first part article. analysis includes total 1788 TA-related scientific articles available Google Scholar and BazTech databases....

The influence of high doses beta radiation on the changes in structure and selected properties (mechanical thermal) polymers were proved.Using for polybutylene terephthalate (PBT) its mechanical ultra nanohardness has not been studied detail so far.The specimens made by injection moulding technology irradiated (0, 33, 66 99 kGy).The microstructure micromechanical surface layer evaluated using FTIR, WAXS instrumented test.The results measurements showed considerable increase (indentation...

The influence of high doses beta radiation on the changes in structure and selected properties (mechanical thermal) polymers were proved.Using for polybutylene terephthalate (PBT) its mechanical ultra nanohardness has not been studied detail so far.The specimens made by injection moulding technology irradiated (0, 33, 66 99 kGy).The microstructure micromechanical surface layer evaluated using FTIR, WAXS instrumented test.The results measurements showed considerable increase (indentation...

The article describes modifications to the effector of a manipulator arm proposed in order increase accuracy jaw force measurements.Gripping measurement is performed using strain gauges.Their proper positioning and connection minimize not only influence position centre gravity manipulation object on jaws but also effect temperature changes around measuring area.The possibility altering magnitude gripping was incorporated into robot control application.This greatly increases security handling...

The present paper deals with the efficient use of new technologies boreholes will thermal drilling Flowdrill. Analyze state and qualities material before after using drilling. Evaluate recommend their potential customers in order to decide on basis results obtained, productivity quality requirements. In conclusion, determination possible applications technology practice changing properties around hole.

The present paper deals with the efficient use of new technologies boreholes will thermal drilling Flowdrill. Analyze state and qualities material before after using drilling. Evaluate recommend their potential customers in order to decide on basis results obtained, productivity quality requirements. In conclusion, determination possible applications technology practice changing properties around hole.