Effects of melt spinning process parameters and wheel surface quality on production of 6060 aluminum alloy powders and ribbons

2020 ◽  
Vol 30 (5) ◽  
pp. 1169-1182 ◽  
Author(s):  
Sultan ÖZTÜRK ◽  
Sefa Emre SÜNBÜL ◽  
Kürşat İCİN
Keyword(s):  
Aluminum Alloy ◽  
Surface Quality ◽  
Process Parameters ◽  
Melt Spinning ◽  
Wheel Surface ◽  
Spinning Process

Fabrication of Carbon Nanotubes Reinforced Polyethylene Fibers by Melt Spinning: Process Optimization and Mechanical Strength Characterization

2007 ◽  
Vol 26-28 ◽  
pp. 289-292
Author(s):  
Abu Bakar Sulong ◽  
Joo Hyuk Park
Keyword(s):  
Carbon Nanotubes ◽  
Process Parameters ◽  
Melt Spinning ◽  
Polymer Fibers ◽  
Test Machine ◽  
Taguchi’S Method ◽  
Spinning Process ◽  
Strength Characterization ◽  
Surface Modified ◽  
Polyethylene Fibers

Optimization process for fabrication of Carbon nanotubes (CNTs) reinforced Polyethylene (PE) fibers by melt spinning has been studied. Three main melt spinning process parameters (spinning temperature, spinning distance, and spinning revolution) are evaluated by the Taguchi’s method to decrease the diameter of fibers. Decreasing diameter of fibers is greater influenced by spinning revolution and distance than spinning temperature. Moreover, fibers in diameter 22 μm (average) are successfully fabricated. Mechanical properties are measured by tensile test machine based on ASTM D3822 for single fibers which were fabricated at optimized melt spinning process parameters. Pure PE polymer fibers and chemically surface modified CNTs reinforced fibers also fabricated for comparison purpose. The interfacial bonding of CNTs with PE matrix is investigated through fracture surfaces image analysis by Scanning Electron Microscopy (SEM).

Influence of Angle of Inclination of the Crucible on Puddle Formation and Ribbon Thickness during Planar Flow Melt Spinning Process

2018 ◽  
Vol 1 (1) ◽  
pp. 279-285 ◽  
Author(s):  
Sowjanya Madireddi
Keyword(s):  
Melt Spinning ◽  
Ribbon Thickness ◽  
Wheel Surface ◽  
Planar Flow ◽  
Ideal Position ◽  
Quality Product ◽  
Spinning Process ◽  
Transformer Core ◽  
The Ideal

Planar flow melt spinning process is widely used to manufacture amorphous ribbons for transformer core applications. The position of the crucible above cooling wheel for melt ejection in the realistic production conditions is crucial to producing the higher quality product. The quality of the product depends on the thickness and defect-free state of the ribbon. Puddle formation plays a significant role in the quality of the ribbon. As the experimental investigation is expensive and time consuming a numerical model is used to investigate the effect of clockwise and counter-clockwise inclination of the crucible on puddle formation and ribbon thickness. The thickness increases by 62.8 % and 111.5% with an augment in inclination angle from 0o to 5.4o in counter-clockwise and clockwise directions respectively. Limiting angle of inclination to avoid non-contact zone or cavity in the puddle at the nozzle wall is around 2o to 3o to obtain a higher quality ribbon. This limit can increase up to 3o to 4o for higher wheel speeds. The ideal position of the crucible is perpendicular to the wheel surface. Otherwise, the limiting angle of inclination to produce higher quality ribbon is, counter-clockwise with an optimum inclination of not more than 2 degrees.

Heat Spinning Deformation Technology of 7A04 Loading-Wheel

2013 ◽  
Vol 652-654 ◽  
pp. 1988-1993
Author(s):  
Heng Qiu Xu ◽  
Ming Zhe Li ◽  
Lin Lin Li ◽  
Rui Zhang ◽  
Da Li Wang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Process Parameters ◽  
Performance Test ◽  
Mechanical Performance ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet ◽  
Internal Organization ◽  
Forming Technology ◽  
Spinning Process ◽  
Conventional Spinning

The program 7A04 aluminum alloy loading-wheels spinning process is described briefly. It formulates the process parameters of aluminum alloy loading-wheels spinning. It uses the aluminum alloy sheet heat spinning process. It analyzes conventional spinning preformed and spinning flanging forming technology regulation. It studies the lubricating technology in the spinning process. The cracking problem is analyzed and solved in the spinning process. The mechanical performance test and the internal organization of the inspection are detected. The finished product meets the requirements. The small batch loading-wheels are produced, which lay the foundation for large quantities loading-wheel spinning production for future.

scholarly journals Influence of friction stir process parameters on surface quality of aluminum alloy A2017

2017 ◽  
Vol 94 ◽  
pp. 02006 ◽  
Author(s):  
Cecile Langlade ◽  
Adriana Roman ◽  
Daniel Schlegel ◽  
Eric Gete ◽  
Patrice Noel ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Surface Quality ◽  
Process Parameters ◽  
Friction Stir Process ◽  
Friction Stir

The effect of melt spinning process parameters on the spinnability of polyetheretherketone

2012 ◽  
Vol 126 (5) ◽  
pp. 1564-1571 ◽  
Author(s):  
Ville Mylläri ◽  
Mikael Skrifvars ◽  
Seppo Syrjälä ◽  
Pentti Järvelä
Keyword(s):  
Process Parameters ◽  
Melt Spinning ◽  
Spinning Process

scholarly journals Influence of High-Productivity Process Parameters on the Surface Quality and Residual Stress State of AISI 316L Components Produced by Directed Energy Deposition

2021 ◽  
Author(s):  
Gabriele Piscopo ◽  
Alessandro Salmi ◽  
Eleonora Atzeni
Keyword(s):  
Surface Roughness ◽  
Residual Stresses ◽  
Surface Quality ◽  
Process Parameters ◽  
Energy Deposition ◽  
Industrial Applications ◽  
High Productivity ◽  
Directed Energy Deposition ◽  
Productivity Process ◽  
Directed Energy

AbstractThe production of large components is one of the most powerful applications of laser powder-directed energy deposition (LP-DED) processes. High productivity could be achieved, when focusing on industrial applications, by selecting the proper process parameters. However, it is of crucial importance to understand the strategies that are necessary to increase productivity while maintaining the overall part quality and minimizing the need for post-processing. In this paper, an analysis of the dimensional deviations, surface roughness and subsurface residual stresses of samples produced by LP-DED is described as a function of the applied energy input. The aim of this work is to analyze the effects of high-productivity process parameters on the surface quality and the mechanical characteristics of the samples. The obtained results show that the analyzed process parameters affect the dimensional deviations and the residual stresses, but have a very little influence on surface roughness, which is instead dominated by the presence of unmelted particles.

scholarly journals Investigation on the Surface Quality Obtained during Trochoidal Milling of 6082 Aluminum Alloy

Machines ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 75
Author(s):  
Nikolaos E. Karkalos ◽  
Panagiotis Karmiris-Obratański ◽  
Szymon Kurpiel ◽  
Krzysztof Zagórski ◽  
Angelos P. Markopoulos
Keyword(s):  
Surface Roughness ◽  
Surface Quality ◽  
Process Parameters ◽  
Manufacturing Industry ◽  
High Surface ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Depth Of Cut ◽  
High Surface Quality ◽  
Trochoidal Milling

Surface quality has always been an important goal in the manufacturing industry, as it is not only related to the achievement of appropriate geometrical tolerances but also plays an important role in the tribological behavior of the surface as well as its resistance to fatigue and corrosion. Usually, in order to achieve sufficiently high surface quality, process parameters, such as cutting speed and feed, are regulated or special types of cutting tools are used. In the present work, an alternative strategy for slot milling is adopted, namely, trochoidal milling, which employs a more complex trajectory for the cutting tool. Two series of experiments were initially conducted with traditional and trochoidal milling under various feed and cutting speed values in order to evaluate the capabilities of trochoidal milling. The findings showed a clear difference between the two milling strategies, and it was shown that the trochoidal milling strategy is able to provide superior surface quality when the appropriate process parameters are also chosen. Finally, the effect of the depth of cut, coolant and trochoidal stepover on surface roughness during trochoidal milling was also investigated, and it was found that lower depths of cut, the use of coolant and low values of trochoidal stepover can lead to a considerable decrease in surface roughness.

scholarly journals Study on the Influence of Surface Temperature Field of Aluminum Alloy Etched by Laser Water Jet Composite Machining

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3206
Author(s):  
Xuehui Chen ◽  
Xin Xu ◽  
Wei Liu ◽  
Lei Huang ◽  
Hao Li ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Temperature Field ◽  
Surface Temperature ◽  
Process Parameters ◽  
Water Jet ◽  
Laser Machining ◽  
Material Surface ◽  
Laser Etching ◽  
Surface Temperature Field

This paper studies the compound effect of liquid medium and laser on the workpiece and analyses the law of material surface temperature change during the processing. Taking 7075-T6 aluminum alloy as the research object, the surface temperature field of aluminum alloy processed using water-jet-assisted laser machining under different process parameters was simulated using finite element software. In addition, the temperature field of the material surface was detected in real-time using the self-built water-jet-assisted laser machining temperature field detection system, and the processing results were observed and verified using an optical microscope, scanning electron microscope, and energy spectrum analyzer. The results show that when the water jet inflow angle is 45°, the heat-affected area of the material surface is the smallest, and the cooling effect of the temperature field of the material surface is better. Considering the liquidus melting point of 7075 aluminum alloys, it is concluded that the processing effect is better when the water jet velocity is 14 m·s−1, the laser power is 100 W, and the laser scanning speed is 1.2 mm·s−1. At this time, the quality of the tank is relatively good, there are no cracks in the bottom of the tank, and there is less slag accumulation. Compared with anhydrous laser etching, water-jet-assisted laser etching can reduce the problems of micro-cracks, molten slag, and the formation of a recast layer in laser etching and improve the quality of the workpiece, and the composition of the bottom slag does not change. This study provides theoretical guidance and application support for the selection and optimization of process parameters for water-jet-assisted laser etching of aluminum alloy and further enriches the heat transfer mechanism of multi-field coupling in the process of water-jet-assisted laser machining.

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