Experimental Assessment of Roughness Changes in the Cutting Surface and Microhardness Changes of the Material S 355 J2 G3 after Being Cut by Non-Conventional Technologies

Maščeník, Jozef; Gašpár, Štefan

doi:10.4028/www.scientific.net/amr.314-316.1944

Cited by 23 publications

(10 citation statements)

References 3 publications

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“…To study the dependencies of parameters, a 3-level full 3-factor experiment was designed with a total number of combinations of technological parameter values of 27 ( Table 2). These combinations were applied to 4 different sample thicknesses (6,10,15, and 40 mm). It follows that 9 samples with 3 cut surfaces were cut from each sheet thickness.…”

Section: Characteristics Of the Samplesmentioning

confidence: 99%

“…These characteristics are Ra, the mean arithmetic deviation of the profile, and Rz, the height of the profile unevenness. These two quantities can be measured by contact profilometers or by non-contact profilometers [14][15][16]. Nevertheless, the values depend not only on cut material or depth in the kerf but also on abrasive material quality and grain size [17].…”

Section: Introductionmentioning

confidence: 99%

“…An interesting multi-parametric phenomenological description of the cutting process has also been presented by the Ostrava group [21][22][23]. The group of TU Kosice researchers entered this research area as a part of systematic studies of the operational states of manufacturing processes using progressive technologies [14,15,24] and influence of the process parameters on the surface quality [25,26] a few years ago.…”

Section: Introductionmentioning

confidence: 99%

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Abrasive Water Jet Cutting of Hardox Steels—Quality Investigation

Krenický

Servátka²,

Gašpár

et al. 2020

Processes

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

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Section: Characteristics Of the Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Abrasive Water Jet Cutting of Hardox Steels—Quality Investigation

Krenický

Servátka²,

Gašpár

et al. 2020

Processes

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“…Required data for model design can be obtained by studied process quantities observing. [17], [18], [19] and [20].…”

Section: Experimental Partmentioning

confidence: 99%

Statistical Eloxal Coating Microhardness Analysis

Badida¹,

Vagaská²,

Kmec³

et al. 2012

Proceedings of the 23rd International DAAAM Symposium 2012

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In order to improvethe mechanical properties ofthe excludedlayer by anodic oxidationof aluminum on material EN AW-1050 H24, there wasinvestigated the micro-hardness ofexcludedlayeras a function ofphysical and chemical factorsinvolved inthe anodicoxidationprocess. The constantcurrent density wasJA= 3A.dm -2 in the electrolyte,constituted bysulfuric acidandoxalic acid. The emphasis was put on the impact of allconsideredactive factors and theirinteractions in this process. The model of studied dependence was designedbasedonmathematical andstatistical analysis ofmatrix with experimentalobtained data of compositerotation plan of experimentwith fiveindependentvariablesfactors (amount of sulfuric acid in the electrolyte, amountof oxalic acidin the electrolyte, temperature of electrolyte, anodizingtimeand appliedvoltage). Theexperimentwascarried out on 44 separateattempts withcurrent change of values of individualfactors underdefined levels in eachimplementation.

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“…The principle of generating high pressures using a multiplier is based on the difference of the surfaces of two pistons firmly connected to each other [ 9 , 10 ]. Flexibility and cold cutting are some of the most advantageous properties of abrasive water jets, as well as the fact that this is an effective tool for cutting various materials including extremely hard or soft materials and composites and sandwich materials that are difficult to machine using traditional technologies [ 11 , 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Water Jet Technology: Experimental Verification of the Input Factors Variation Influence on the Generated Vibration Levels and Frequency Spectra

Olejárová

Krenický

2021

Materials

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Vibration measurement belongs amongst the most important activities for the correct and stable operation of machines in terms of quality, economy, and safety. Monitoring the condition of the machine provides the key data for the detection of machine parts damage, thus preventing unexpected failure states and production drop-outs. Therefore, special attention is paid in the paper to the measurement and evaluation of basic parameters of vibration, particularly the frequency of vibrations and the amplitude of vibration acceleration. Experimental measurements were performed while machining the material HARDOX 500/10 on a production system using the abrasive water jet technology (AWJ) with the varied abrasive mass flow and the feed rate. By evaluating the results of measurements, recommendations of suitable and inappropriate combinations of operating parameters were formulated, widening current knowledge in the field of the abrasive parameters and the speed of movement of the technological head influence the amplitudes of vibration acceleration in the operation of production systems with AWJ technology.

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Experimental Assessment of Roughness Changes in the Cutting Surface and Microhardness Changes of the Material S 355 J2 G3 after Being Cut by Non-Conventional Technologies

Cited by 23 publications

References 3 publications

Abrasive Water Jet Cutting of Hardox Steels—Quality Investigation

Abrasive Water Jet Cutting of Hardox Steels—Quality Investigation

Statistical Eloxal Coating Microhardness Analysis

Water Jet Technology: Experimental Verification of the Input Factors Variation Influence on the Generated Vibration Levels and Frequency Spectra

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