scholarly journals The influence of changing the parameters of water-abrasive cutting on the quality of cutting composite cross-section structures

Mechanik ◽  
2018 ◽  
Vol 91 (7) ◽  
pp. 476-478
Author(s):  
Elżbieta Doluk ◽  
Józef Kuczmaszewski ◽  
Paweł Pieśko
Keyword(s):  
Aluminum Alloy ◽  
Surface Quality ◽  
Cross Section ◽  
Water Mass ◽  
Abrasive Water Jet ◽  
Flow Rates ◽  
Composite Layers ◽  
Mass Flow Rates ◽  
Abrasive Cutting

Presented are results of the surface quality sandwich composites (aluminum alloy EN AW-2024 and CFRP) by using an abrasive water-jet. The experiments were conducted with different speed of cutting, pressure of the abrasive water, mass flow rates, entry side of the stream and quantity of composite layers. The analysis has been studied based on received bevel angle values.

Experimental Study on the Surface Roughness of 1060 Aluminum Alloy Cut by Abrasive Water Jet

2019 ◽  
Vol 950 ◽  
pp. 32-37 ◽  
Author(s):  
Qi Wen Xu ◽  
Chi Heng Qiang ◽  
Chu Wen Guo
Keyword(s):  
Surface Roughness ◽  
Aluminum Alloy ◽  
Surface Quality ◽  
Dominant Role ◽  
Traverse Speed ◽  
Water Jet ◽  
Abrasive Water Jet ◽  
Work Pressure ◽  
Cutting Surface

Through the experiment of cutting 1060 Aluminum Alloy by Abrasive Water Jet (AWJ), the surface roughness of material which is cut by AWJ is controlled by the cutting work pressure, cutting stand-off distance, cutting traverse speed and the abrasive diameter which used in AWJ. Measuring the cutting surface roughness of 1060 Aluminum Alloy by stereomicroscope and surfagauge, among the factor which can affect the surface roughness, the cutting traverse speed play a dominant role to control the surface roughness in the process of cutting. As the result of the surface roughness of 1060 Aluminum Alloy at different cutting depth is different, which can be separated in two different zones (Smooth area and Rough zone). As the result of experiment, the abrasive diameter has little effect to change the surface roughness between two different zones. The surface quality of rough zone can be improved when change the diameter of abrasive: with the diameter of abrasive increase, the surface quality of rough zone become better. A higher cutting pressure can improve the surface quality of the cutting surface of 1060 Aluminum Alloy. While increase the cutting traverse speed in the process of cutting can decrease the surface quality of 1060 Aluminum Alloy cutting surface. In a certain range, increase the cutting stand-off distance of AWJ can decrease the surface roughness of the cutting surface, and the roughness of cutting surface will change little when the stand-off distance increases to a certain extent.

scholarly journals Effect of tool shoulder diameters on surface quality of friction stir welded joints of aluminum alloy 6061

2020 ◽  
Vol 932 ◽  
pp. 012114
Author(s):  
N C Maideen ◽  
S Budin ◽  
Dzullijah Ibrahim ◽  
A Shahrol Azlan
Keyword(s):  
Aluminum Alloy ◽  
Surface Quality ◽  
Welded Joints ◽  
Friction Stir ◽  
Aluminum Alloy 6061 ◽  
Tool Shoulder ◽  
Alloy 6061

Effects of low-frequency electromagnetic field on the surface quality of 7050 aluminum alloy ingots during the hot-top casting process

2011 ◽  
Vol 18 (2) ◽  
pp. 165-168 ◽  
Author(s):  
Xiang-jie Wang ◽  
Jian-zhong Cui ◽  
Yu-bo Zuo ◽  
Zhi-hao Zhao ◽  
Hai-tao Zhang
Keyword(s):  
Electromagnetic Field ◽  
Aluminum Alloy ◽  
Surface Quality ◽  
Low Frequency ◽  
Casting Process ◽  
Hot Top ◽  
7050 Aluminum Alloy

Ultraschallüberlagertes Trennschleifen von Faserverbundwerkstoffen*/Ultrasound abrasive cutting of fiber composites - Survey on the potential and mode of action

2016 ◽  
Vol 106 (01-02) ◽  
pp. 39-43
Author(s):  
Y. Babenko ◽  
T. Mayer ◽  
A. Gebhardt
Keyword(s):  
Surface Quality ◽  
Process Parameters ◽  
Mode Of Action ◽  
Fiber Composites ◽  
Cutting Process ◽  
Force Analysis ◽  
Abrasive Cutting

Dieser Fachartikel befasst sich mit der Untersuchung des Potentials der Ultraschallüberlagerung beim Trennschleifen moderner Faserverbundwerkstoffe. Es wurde eine Zerspankraftanalyse des Trennschleifprozesses am CFK-Werkstück mit variierenden Prozessparametern durchgeführt. Zudem wurden die Oberflächenqualitäten der Schnittkanten betrachtet.   The presented study describes the investigation of the potential of ultrasound abrasive cutting of modern fiber composites. A force analysis of the abrasive cutting process of CFRP was conducted, while the process parameters were varied. In addition, the surface quality of the machined workpieces was observed.

scholarly journals Effect of powder lubricants on surface quality of aluminum alloy die-castings.

2002 ◽  
Vol 52 (7) ◽  
pp. 303-307 ◽  
Author(s):  
Hitoshi YAE ◽  
Ryosuke KIMURA ◽  
Makoto YOSIDA ◽  
Gen SASAKI ◽  
Jin PAN ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Surface Quality ◽  
Die Castings

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 Modeling the machined surface quality of an aluminum alloy using the active experiment type

2019 ◽  
Vol 572 ◽  
pp. 012043
Author(s):  
A B Pop ◽  
M A Ţîţu ◽  
G I Pop ◽  
Ş Ţîţu
Keyword(s):  
Aluminum Alloy ◽  
Surface Quality ◽  
Machined Surface ◽  
Active Experiment ◽  
Machined Surface Quality

Study of the surface quality of carbon fiber–reinforced thermoplastic matrix composite (CFRTP) machined by abrasive water jet (AWJM)

2020 ◽  
Vol 107 (7-8) ◽  
pp. 3299-3313 ◽  
Author(s):  
Fermin Bañon ◽  
Alejandro Sambruno ◽  
Moises Batista ◽  
Bartolome Simonet ◽  
Jorge Salguero
Keyword(s):  
Carbon Fiber ◽  
Surface Quality ◽  
Matrix Composite ◽  
Water Jet ◽  
Abrasive Water Jet ◽  
Fiber Reinforced ◽  
Thermoplastic Matrix ◽  
Carbon Fiber Reinforced

Experimental Studies of Rotation Efficiency of Packing on Characteristics of Counter Flow Wet Cooling Tower

2014 ◽  
Author(s):  
Khashayar Teimoori ◽  
Ali M. Sadegh
Keyword(s):  
Mass Flow ◽  
Flow Rate ◽  
Rotational Speed ◽  
Water Mass ◽  
Water Flow Rate ◽  
Experimental Studies ◽  
Counter Flow ◽  
Flow Rates ◽  
Mass Flow Rates ◽  
Water Mass Flow Rate

Packing in cooling towers is commonly used in nuclear power plants and air conditioning systems. However their efficiency with respect to the inlet air flow rate and the temperature of the water has not been fully investigated. In this research, the efficiency of packing rotational speed with respect to the wet counter flow of a cooling tower is experimentally investigated. In our experimental studies, six elliptical wooden plates that are equally spaced are used as a packing tower. The packing area of 0.85 m2 is considered with the following rotor speed ranges: 0.5, 3.5, 10, 15 and 17 rpm. It is assumed that the water mass flow rate is proportional to the inlet air to the tower. Six mass flow rates starting from 0.2 to 2.8 kg/h and the inlet air and water temperatures of 27°C and 45°C, respectively, are considered. The results illustrate that for the range of 0 to 5 rpm of the packing rotational speed the cooling rate of water is increased 3% for the water flow rate of 2.8 kg/h, and 24% for the water flow rate of 0.4 kg/h. Additionally, as a result of the increased rotational speed from 5 to over 17 rpm the cooling rate at both maximum and minimum water mass flow rates are increased from 13.9 to 34.4 percent, respectively. Furthermore, the water outlet temperature is reduced from 8.6°C to 3.3°C in the least and the most mass flow rates leading to the increased speed from 5 to 17 rpm, respectively. The experimental relationship between the inlet air temperature and the rotational speed of the packing has been determined. Also, the inlet water temperature at the maximum flow rate has been decreased to 3.4 and at the least water mass flow rate it has been decreased to 29 percent for the range of rotational speed from 5 to over 17 rpm of the packing rotation. All the results are depicted in several curves to show the actual variations of the variables.

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