Research of the Technological Parameters Influencing on the Surface Quality of Micro Complex Surface

2005 ◽  
pp. 513-518
Author(s):  
Ming Jun Chen ◽  
Ying Chun Liang ◽  
Y.Z. Sun ◽  
W.X. Guo ◽  
Wen Jun Zong
Keyword(s):  
Surface Quality ◽  
Complex Surface ◽  
Technological Parameters

Quality Assessment of Machined Surfaces by an Optical Profilometer

2015 ◽  
Vol 669 ◽  
pp. 443-450
Author(s):  
Jana Gerková ◽  
Ľuboslav Straka
Keyword(s):  
Quality Assessment ◽  
Surface Quality ◽  
Production System ◽  
Head Movement ◽  
Movement Speed ◽  
Technological Parameters ◽  
Cutting Head ◽  
Optical Profilometer ◽  
Machined Surfaces

Technological parameters affecting the surface quality of cutting edges in production system with the AWJ technology include cutting head movement speed. The article examines and evaluates the quality of processed surface by the AWJ technology on selected materials as related to the change of cutting head movement speed. It was discovered that the movement speed for the AWJ technology has a significant effect on the surface quality

scholarly journals Experimental Research into Technology of Abrasive Flow Machining Nonlinear Tube Runner

2014 ◽  
Vol 6 ◽  
pp. 752353 ◽  
Author(s):  
Junye Li ◽  
Lifeng Yang ◽  
Weina Liu ◽  
Xuechen Zhang ◽  
Fengyu Sun
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Surface Quality ◽  
Experimental Research ◽  
The Self ◽  
Technological Parameters ◽  
Abrasive Flow Machining ◽  
Overall Performance ◽  
Scanning Electron

In the fields of military and civil uses, some special passages exist in many major parts, such as non-linear tubes. The overall performance is usually decided by the surface quality. Abrasive flow machining (AFM) technology can effectively improve the surface quality of the parts. In order to discuss the mechanism and technology of abrasive flow machining nonlinear tube, the nozzle is picked up as the researching object, and the self-designed polishing liquid is employed to make research on the key technological parameters of abrasive flow machining linear tube. Technological parameters’ impact on surface quality of the parts through the nozzle surface topography and scanning electron microscopy (SEM) map is explored. It is experimentally confirmed that abrasive flow machining can significantly improve surface quality of nonlinear runner, and experimental results can provide technical reference to optimizing study of abrasive flow machining theory.

Experimental study on the accuracy and surface quality of printed versus machined holes in PEI Ultem 9085 FDM specimens

2021 ◽  
Vol 27 (11) ◽  
pp. 1-12
Author(s):  
Giovanni Gómez-Gras ◽  
Marco A. Pérez ◽  
Jorge Fábregas-Moreno ◽  
Guillermo Reyes-Pozo
Keyword(s):  
Surface Quality ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Dimensional Accuracy ◽  
Technological Parameters ◽  
Content Type ◽  
Fused Deposition ◽  
Comparison Of The Results ◽  
Through Hole

Purpose This paper aims to investigate the quality of printed surfaces and manufacturing tolerances by comparing the cylindrical cavities machined in parts obtained by fused deposition modeling (FDM) with the holes manufactured during the printing process itself. The comparison focuses on the results of roughness and tolerances, intending to obtain practical references when making assemblies. Design/methodology/approach The experimental approach focuses on the comparison of the results of roughness and tolerances of two manufacturing strategies: geometric volumes with a through-hole and the through-hole machined in volumes that were initially printed without the hole. Throughout the study, both alternates are explained to make appropriate recommendations. Findings The study shows the best combinations of technological parameters, both machining and three-dimensional printing, which have been decisive for obtaining successful results. These conclusive results allow enunciating recommendations for use in the industrial environment. Originality/value This paper fulfills an identified need to study the dimensional accuracy of the geometries obtained by additive manufacturing, as no experimental evidence has been found of studies that directly address the problem of the FDM-printed part with geometric and dimensional tolerances and desirable surface quality for assembly.

Investigation of the Effects of Technological Parameters on Surface Roughness in Extrusion Bars of Aluminum Alloy

2019 ◽  
Vol 889 ◽  
pp. 155-160
Author(s):  
Trong Mai Nguyen ◽  
Đuc Quy Tran ◽  
Van Nghe Pham ◽  
Van Canh Nguyen
Keyword(s):  
Surface Roughness ◽  
Aluminum Alloy ◽  
Surface Quality ◽  
Research Work ◽  
Extrusion Process ◽  
Optimal Parameters ◽  
Technological Parameters

In this research work, the result of the effects of technological parameters on surface roughness in extrusion bars of aluminum alloy were pesented. The results of this study may be used for choosing optimal parameters of extrusion process so that surface quality of extruded bar was improved.

scholarly journals The influence of brushing on the surface quality of aluminium

2018 ◽  
Vol 178 ◽  
pp. 01015 ◽  
Author(s):  
Uwe Teicher ◽  
Richard Schulze ◽  
Alexander Brosius ◽  
Andreas Nestler
Keyword(s):  
Surface Quality ◽  
Force Measurement ◽  
Experimental Studies ◽  
Cutting Speed ◽  
Technological Parameters ◽  
Milling Operation ◽  
Metal Machining ◽  
Modelling Methods ◽  
Main Influence

The extension of technical capabilities of machine centres for complete machining of components can improve their performance. In the field of sheet metal machining, the objective beside the classic milling operation was a generation of functional surfaces by face brushing. The experimental studies have probed the influence of tools and technological parameters on the surface quality. In addition to an analysis of the relevant roughness parameters the formation of the surface topography was analysed by several measurement methods. By the application of force measurement, the results of the surface quality can be interpreted additionally. It could be shown that the feed rate in contrast to the cutting speed has the main influence on the surface roughness. A peculiarity is given by the parameter-based width of cut that should be known for reliable process control. The acquired data can be applied in the form of process characteristic fields for further processing with simulation and modelling methods.

Preparation and Experimental Study of the Complex Shape Carbide Diamond Coated Tools

2013 ◽  
Vol 579-580 ◽  
pp. 153-157
Author(s):  
You Yi Zheng ◽  
Chun Lin Zhang ◽  
Xing Xin Xu
Keyword(s):  
Surface Quality ◽  
Cutting Tools ◽  
Diamond Films ◽  
Complex Surface ◽  
End Mill ◽  
Laser Raman ◽  
Coated Tools ◽  
Wide Range ◽  
Hot Filament

The CVD diamond films have a series of excellent performances, so it has a wide range of applications in the cutting tools, wearable devices, electrochemical electrodes and other fields, and it has a very substantial market prospects. In this study, The diamond films with a layer of uniform and smooth were deposited on the surface of the complex surface YG6 carbide end mill by using the hot filament CVD method, the quality of diamond films was detected by using the scanning electron microscopy and the laser Raman spectrometer. The cutting performances of diamond coated end mill were evaluated from the workpiece surface quality and tool life two aspects by cutting silicon carbide aluminum reinforced composites, and compared with the uncoated carbide tools. The experimental results show that because of the cutting tool was pretreated that make tool surface coarsening, leading the surface quality was machined by diamond coated tools is lower than the carbide cutting tools. However, the coating can protect the tools, increase the wear resistance of the coated tools and make the life of the diamond coated tools increase 3-5 times than the carbide cutting tools.

scholarly journals Identification of Technological Parameters of Ni-Alloys When Machining by Monolithic Ceramic Milling Tool

2017 ◽  
Vol 14 (2) ◽  
pp. 14-18
Author(s):  
Andrej Czán ◽  
Ondrej Kubala ◽  
Igor Danis ◽  
Tatiana Czánová ◽  
Jozef Holubják ◽  
...  
Keyword(s):  
Surface Quality ◽  
Nickel Alloys ◽  
Cutting Conditions ◽  
Technological Parameters ◽  
Machined Surface ◽  
Analysis And Evaluation ◽  
Ni Alloys ◽  
Milling Tool ◽  
Conventional Coating

Abstract The ever-increasing production and the usage of hard-to-machine progressive materials are the main cause of continual finding of new ways and methods of machining. One of these ways is the ceramic milling tool, which combines the pros of conventional ceramic cutting materials and pros of conventional coating steel-based insert. These properties allow to improve cutting conditions and so increase the productivity with preserved quality known from conventional tools usage. In this paper, there is made the identification of properties and possibilities of this tool when machining of hard-to-machine materials such as nickel alloys using in airplanes engines. This article is focused on the analysis and evaluation ordinary technological parameters and surface quality, mainly roughness of surface and quality of machined surface and tool wearing.

scholarly journals Topography of material made by the application of abrasive water jet technology

2014 ◽  
Vol 60 (No. 8) ◽  
pp. 318-323
Author(s):  
M. Kvietková
Keyword(s):  
Surface Quality ◽  
Feed Rate ◽  
Water Jet ◽  
Mean Deviation ◽  
Technological Parameters ◽  
Dimensional Precision ◽  
Water Jet Cutting ◽  
Roughness Assessment ◽  
Rough Milling

Water jet cutting technology is widely applicable in all industrial areas in areas where the need for high dimensional precision machined material. Quality of surface corresponds to the scale from middle smooth milling to rough milling. It shows the results of undulation in dependence on technical and technological parameters ‒ feed rate and abrasive mass flow. The paper also contains the methodology for assessment of the effect of these parameters on surface finished undulation. Our paper presents significant results of experiments made by this methodology applied to MDF, OSB boards and to technical beech plywood. We can see from the above-mentioned results that the fundamental indicator for roughness assessment is the arithmetical mean deviation of roughness profile R<sub>a</sub>. MDF boards have the most homogeneous structure in the entire cut among the monitored materials, which affects the insignificance of parameter R<sub>a. </sub>For OSB boards, we can see the worse surface quality with higher feed rate and vice versa for plywood, higher feed rate improves the surface quality. A higher amount of abrasive flow causes the worse surface quality. &nbsp; &nbsp;

Improvement of Surface Quality of Casting Produced by Casting under Pressure

2017 ◽  
Vol 265 ◽  
pp. 988-993 ◽  
Author(s):  
R.V. Gavariev ◽  
I.A. Savin
Keyword(s):  
Surface Roughness ◽  
Surface Quality ◽  
Technological Process ◽  
Vapour Deposition ◽  
Entire Period ◽  
Deposition Method ◽  
Technological Parameters ◽  
Pilot Studies ◽  
Compression Mold

The article considers the surface roughness of compression molds castings received by casting under pressure depending on the condition of the form-building surface. The technological process of casting under pressure is presented for the "Strike plate" product, concrete technological parameters values are specified. The pilot studies of the roughness of the castings throughout the entire period of operation of a compression mold are conducted. Based on the received values the recommendations about improvement of quality of a surface of castings by drawing sheetings are submitted by phisical vapour deposition method.

scholarly journals Construction of Nonsinusoidal Oscillation Waveform Function and Technological Parameters for Continuous Casting Mold

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Chao Zhou ◽  
Xingzhong Zhang ◽  
Fang Wang ◽  
Subo Ren
Keyword(s):  
Continuous Casting ◽  
Surface Quality ◽  
Sinusoidal Oscillation ◽  
Technological Parameters ◽  
Continuous Casting Mold ◽  
Synchronous Control ◽  
Limit Value ◽  
Steel Continuous Casting ◽  
The Impact

Nonsinusoidal oscillation techniques can shorten the negative strip time and improve the slab surface quality in the process of steel continuous casting. But the acceleration of nonsinusoidal oscillation is higher than that of the sinusoidal oscillation. So it is easy to result in the impact for the mold movement. To solve this problem, a nonsinusoidal oscillation waveform function of mold was constructed, which had good dynamic characteristics. And the smaller acceleration can reduce the impact of the oscillator. By analyzing the parameters of oscillation technology, the calculation method of each oscillation technological parameter for seven section functions was presented and the multitechnological parameter curves were given. Based on the technological parameters of sinusoidal oscillation, a synchronous control model of nonsinusoidal oscillation was determined. The results show that the parameters can satisfy the limit value in theory, which can enhance the casting speed, surface quality of slab, and provide reference for further practice in industry.

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