scholarly journals Effect of abandonment of cooling and lubrication on surface roughness and cylindricity in turning of steel

2021 ◽  
Vol 11 (4) ◽  
pp. 395-407
Author(s):  
Antal Nagy ◽  
Gyula Varga
Keyword(s):  
Surface Roughness ◽  
Design Method ◽  
Average Roughness ◽  
Global Issues ◽  
3D Surface Roughness ◽  
Experimental Design Method ◽  
Full Factorial Experimental Design ◽  
2D And 3D ◽  
Cooling And Lubrication ◽  
Cutting Speeds

One of the defining global issues today is to reduce the load on the environment. Thus, in this paper, the effect, and consequences of the abandonment of cooling and lubrication were investigated when turning of non-alloyed steel. The 2D and 3D surface roughness parameters, cylindricity deviations and circularity errors were examined at different feeds and cutting speeds. The experiments were performed, using the full factorial experimental design method. It was found that with dry machining, the average roughness is slightly higher with increasing productivity, however, at lower feed and cutting speeds, the surface has better wear resistance and lubricant retention, and cylindricity deviation can be minimized.

Analysis of the effects of fabric reinforcement parameters on the mechanical properties of textile-based hybrid composites by full factorial experimental design method

2017 ◽  
Vol 48 (3) ◽  
pp. 580-598 ◽  
Author(s):  
Hande Sezgin ◽  
Omer B Berkalp
Keyword(s):  
Experimental Design ◽  
Hybrid Composites ◽  
Design Method ◽  
High Strength ◽  
Factorial Experimental Design ◽  
Fabric Reinforcement ◽  
Experimental Design Method ◽  
Glass Carbon ◽  
Full Factorial Experimental Design ◽  
Full Factorial

In this study, the effect of some fabric reinforcement parameters (fabric direction, yarn type and stacking sequence) on the mechanical properties of textile based hybrid composites are analysed by using full factorial experimental design method. The analysis of the results is achieved by using Minitab 17 software program. One factor (fabric reinforcement direction) with two levels (warp direction and weft direction) and two factors (yarn type and stacking sequence) with three levels (jute/glass, jute/carbon, glass/carbon and consecutive, low strength inside, high strength inside) are selected as the reinforcement design. Full factorial experimental design analysis results indicate that, the highest tensile and impact strength values among the experimental design are realised when samples are taken from the warp direction and E-glass/carbon combination is chosen as the yarn (material) type. Moreover, it is verified that while higher tensile strength is achieved by placing higher strength fabrics to the inner layers, higher impact strength is achieved by placing high strength fabrics to the outer layers of hybrid composite structures. Analysis of variance tables also show that at 95% confidence level, the effects of the factors are statistically significant ( p < 0.05).

Effects of Technological Parameters on Surface Characteristics in Face Milling

2017 ◽  
Vol 261 ◽  
pp. 285-292 ◽  
Author(s):  
Gyula Varga ◽  
János Kundrák
Keyword(s):  
Surface Roughness ◽  
Cutting Speed ◽  
Surface Characteristics ◽  
Face Milling ◽  
Roughness Parameters ◽  
Technological Parameters ◽  
3D Surface Roughness ◽  
High Level ◽  
2D And 3D ◽  
Further Development

The experimental and theoretic examination of conventional manufacturing procedures continue to be a topic of modern research. It is assisted, to a great extent, by the spread and the possibility of the application of high level software and more accurate measuring equipment. The research results obtained by the use of new equipment can open new ways for further development of conventional manufacturing procedures and their more intensive, more productive application. In this paper, an experimental method is used for examination of the surface features (e.g. flatness, 2D and 3D surface roughness parameters) of face milled aluminium parts. The aim of experiments was to determine the effect of change of the technological parameters (feed rate and cutting speed) on flatness and surface roughness features in of face milling of aluminium parts.

scholarly journals ANALYSIS OF GEOMETRIC FEATURES OF THE 316L STEEL SURFACE AFTER DIFFERENT SURFACE TREATMENT METHODS

2016 ◽  
Vol 2 (1) ◽  
pp. 73-79
Author(s):  
Mariusz Kłonica
Keyword(s):  
Surface Roughness ◽  
Steel Surface ◽  
Geometric Features ◽  
Roughness Parameters ◽  
Functional Attributes ◽  
3D Surface Roughness ◽  
Measuring Techniques ◽  
316L Steel ◽  
2D And 3D ◽  
Intensive Development

The paper presents the selected results of surface quality. The selected 2D and 3D surface roughness parameters are analyzed. An intensive development of various surface topography measuring techniques allows the prediction of the functional attributes of the surface and also evaluation of its quality. The measurement strategy highly influences the results of the evaluation of surface roughness. Finally, some general conclusions are given.

scholarly journals Study on Fabric Surface Roughness and its Influence on Worsted Fabric Abrasion Resistance

2015 ◽  
Vol 10 (4) ◽  
pp. 155892501501000
Author(s):  
Sara Asghari Mooneghi ◽  
S. Mohammad Hosseini Varkiyani ◽  
Siamak Saharkhiz
Keyword(s):  
Surface Roughness ◽  
Statistical Analysis ◽  
Abrasion Resistance ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Roughness Parameters ◽  
3D Surface Roughness ◽  
Strong Linear Correlation ◽  
Fabric Surface ◽  
2D And 3D

Surface roughness is of paramount importance in predicting tactile properties of fabrics. This study aimed at investigating surface roughness and the effect of this property on the abrasion resistance of worsted fabrics. Nine different groups of worsted fabrics were produced. The fabrics had three weave types and three areal densities. A non-contact laser based system was developed to scan the surface of the fabrics. In order to extract the surface roughness profile, a new method of data analysis was presented. Several two dimensional (2D) and three dimensional (3D) roughness parameters were introduced and calculated. Statistical analysis proved that the effect of weave type and weft density was significant on all of the 2D and 3D surface roughness parameters at a confidence range of 95%. However, the 3D parameters provided the surface roughness with just one number in comparison with the 2D ones (warp and weft directions). Therefore, the 3D parameters provided a better indication for the surface roughness which had the effect of both warp and weft directions. Results showed that there was a strong linear correlation between the abrasion resistance and the 3D roughness parameters.

scholarly journals Analysis of the factors affecting the dimensional stability of socks using full-factorial experimental design method

2020 ◽  
Vol 15 ◽  
pp. 155892502094821
Author(s):  
Sikander Abbas Basra ◽  
Norina Asfand ◽  
Zeeshan Azam ◽  
Khurram Iftikhar ◽  
Muhammad Awais Irshad
Keyword(s):  
Experimental Design ◽  
Dimensional Stability ◽  
Design Method ◽  
Factorial Experimental Design ◽  
Contributing Factors ◽  
Statistical Tool ◽  
Factors Affecting ◽  
Experimental Design Method ◽  
Full Factorial Experimental Design ◽  
Full Factorial

Socks, which are a necessary item of clothing, need to be comfortable, affordable, and retain their quality throughout their life. Dimensional stability is one of the basic requirements of socks. The purpose of this study is to investigate the contributing factors, that is, elastane percentage, main yarn material, and process type on dimensional stability of socks. Four different percentages of elastane in plaiting yarn (4%, 6%, 8%, and 10%), two main yarns materials (100% cotton and polyester/cotton 52/48), and two process types (wash and bleach) were taken as level of input variables to study the effect on dimensional stability of socks using full-factorial experimental design method. Statistical tool (analysis of variance) was used to check the significant effect of different factors. It was found that with the increase in elastane percentage, shrinkage was decreased. Cotton was found to have more shrinkage percentage as compared to polyester/cotton. In addition, it was observed that washing treatment produced significantly lesser shrinkage than bleaching. These data present a great interest to sock manufacturers who can make better choices to manufacture, dimensionally stable socks.

Experimental Research on the Surface Roughness of Metal Kerf by Abrasive Waterjet Cutting

2011 ◽  
Vol 325 ◽  
pp. 627-632
Author(s):  
Hong Tao Zhu ◽  
Chuan Zhen Huang ◽  
Shu Guang Zhang ◽  
Jun Wang ◽  
Cui Lian Che
Keyword(s):  
Surface Roughness ◽  
Design Method ◽  
Cutting Speed ◽  
Processing Parameters ◽  
Abrasive Waterjet ◽  
Orthogonal Experimental Design ◽  
Cutting Condition ◽  
Waterjet Cutting ◽  
Abrasive Waterjet Cutting ◽  
Experimental Design Method

In this paper, a comprehensive experimental investigation on the surface roughness of metal kerf in abrasive waterjet cutting metal material is presented. Orthogonal experimental design method and analysis of variance are utilized in researching the effects of processing parameters on the roughness of smooth zone. By analyzing, it could be concluded that lower waterjet pressure, smaller cutting speed and abrasive grit, larger abrasive flow rate and appropriate standoff are favorable to generate smooth metal kerf. A verification experiment was conducted using an optimizing cutting condition. The result indicates that the surface roughness of metal kerf has been improved effectively.

Determination of Parameters for Accurate Dimension in Wire Electrical Discharge Machining

2014 ◽  
Vol 905 ◽  
pp. 171-175
Author(s):  
Apiwat Muttamara ◽  
Pichai Janmanee
Keyword(s):  
Surface Roughness ◽  
Electrical Discharge ◽  
Manufacturing Industry ◽  
Electrical Discharge Machining ◽  
Wire Electrical Discharge Machining ◽  
Average Roughness ◽  
Good Surface ◽  
Effective Factor ◽  
Full Factorial Experimental Design ◽  
Determination Of Parameters

Abstract. Wire electrical discharge machining (WEDM) is a widespread technique used in manufacturing industry for high precision machining of all types of conductive materials such as metals and its alloys of any hardness which are difficult to machine with traditional techniques. In order to get a precise workpiece with good surface quality, some extra repetitive finish cuts along the rough cutting contour are necessary. The selected parameters are servo voltage (SV) and voltage (V). The goal of the research was to obtain accurate dimension (10 + 0.005 mm and surface roughness < 0.46 microns). The experiment material is SKD-11 steel. The experiments are designed by 3k full factorial experimental design at 3 level 2 factors and 9 experiments with 2 replicates. The experiment determines the significant effective factor at confidential interval 95%. The SV factor is the significant effective factor and voltages parameter affects to the average roughness surface. Experimental results show that a surface roughness under 0.46 micron and accurate dimension value + 5 micron of 10 x 10 millimeters can be obtained.

Sign in / Sign up

Export Citation Format

Share Document