Experimental investigation to study the effects of processing parameters on developed novel AM(Al-Mn) series alloy

2020 ◽  
Vol 35 (16) ◽  
pp. 1842-1851 ◽  
Author(s):  
Sunil Dutta ◽  
Suresh Kumar Reddy Narala
Keyword(s):  
Experimental Investigation ◽  
Processing Parameters ◽  
Series Alloy

The Optimization of Processing Parameters and Experimental Investigation on Ni-Based Components Fabricated by Laser Cladding

2009 ◽  
Vol 407-408 ◽  
pp. 676-679
Author(s):  
Xia Ji ◽  
Jian Zhong Zhou ◽  
Feng Qiu ◽  
Su Qing Jiang
Keyword(s):  
Experimental Investigation ◽  
Surface Quality ◽  
Laser Cladding ◽  
Primary Dendrite ◽  
Processing Parameters ◽  
Reheat Cracking ◽  
Statistical Analysis System ◽  
Laser Cladding Process ◽  
Superior Surface ◽  
Analysis System

The optimization of processing parameters for laser cladding process based on Statistical Analysis System (SAS) software was investigated and the experimental investigation on Ni-based alloy components fabricated by laser cladding was carried out. The influences of the main processing parameters on the surface quality were analyzed, and the Ni-based components with superior surface quality were obtained by employing the optimum set of parameters. The surface morphology and microstructure of the components were analyzed. Results indicate that the surface of the cladding is rather smooth and the claddings have a unique microstructure consisting of primary dendrite. The laser cladding layer with integrated melt interface and without reheat cracking can be obtained by optimizing the process variables. The investigations show that the components fabricated by laser cladding process have better mechanical properties than that of the conventional manufacturing technology.

Experimental Investigation on the Nickel-Based Metal Components Fabricated by Laser Cladding

2008 ◽  
Vol 375-376 ◽  
pp. 338-342 ◽  
Author(s):  
Xia Ji ◽  
Jian Zhong Zhou ◽  
Hua Feng Guo ◽  
Da Peng Xu
Keyword(s):  
Experimental Investigation ◽  
Laser Cladding ◽  
Orthogonal Design ◽  
Hardness Measurement ◽  
Processing Parameters ◽  
Process Conditions ◽  
Micro Hardness ◽  
Hardness Tester ◽  
Cladding Layer ◽  
Powder Feed

This paper presents an experimental investigation on the metal components fabricated by laser cladding. In the present study, two process of laser cladding were conducted, that is pre-placed powder cladding and coaxial powder-feed cladding. The effect of processing parameters was studied and optimum set of parameters for the superior surface quality was established by employing the orthogonal design. The fabricated components were subjected to metallographic examinations and micro-hardness measurement. Results indicated that the microstructure of coaxial cladding components was finer than pre-placed powder cladding components. The micro-hardness of the fabricated specimen along and vertical the scanning direction were measured using a HVS-1000 micro-hardness tester with a 200 g applied load. Analysis of the physical properties provided further evidence of differences in micro-hardness produced by different process conditions, and the average micro-hardness value of pre-placed power cladding layer was lower than the coaxial powder-feed cladding layer.

Filament winding of aramid/PA6 commingled yarns with in situ consolidation

2017 ◽  
Vol 31 (4) ◽  
pp. 465-482 ◽  
Author(s):  
Joanna CH Wong ◽  
Javier Molina Blanco ◽  
Paolo Ermanni
Keyword(s):  
Experimental Investigation ◽  
Polyamide 6 ◽  
Processing Parameters ◽  
Filament Winding ◽  
Void Content ◽  
Compression Moulding ◽  
Compaction Force ◽  
Commingled Yarns ◽  
Filament Winding Process

The in situ consolidation of commingled yarns during filament winding is demonstrated on an aramid fibre-reinforced polyamide 6 material. This article is a systematic experimental investigation of the filament winding processing parameters, namely, the heat gun temperature, line speed, fibre tension, compaction force and preheater temperature. Optimizing the processing parameters in this filament winding process produced a fully consolidated material with a void content of ∼0.25% which is comparable to the material quality achieved by means of compression moulding using the same intermediate materials.

scholarly journals Formation of Carded Webs from Microfibers

2001 ◽  
Vol os-10 (1) ◽  
pp. 1558925001os-10
Author(s):  
Yoon J. Hwang ◽  
William Oxenham ◽  
Abdelfattah M. Seyam
Keyword(s):  
Experimental Investigation ◽  
Strong Correlation ◽  
Processing Parameters ◽  
Short Fiber ◽  
Fiber Content ◽  
Statistical Analyses ◽  
Fiber Breakage ◽  
Machine Direction ◽  
Web Quality ◽  
The Web

The paper is reporting an extensive experimental investigation to optimize the processing of microfibers on a flat top card. Carding parameters, type of fiber finish and their interactions were studied in terms of their impact on web quality. The web quality was determined by assessing the nep content and fiber breakage due to carding. Statistical analyses of the data indicate that fiber finish and processing parameters can be selected to minimize neps and fiber breakage during carding. Furthermore the investigation showed that there is a strong correlation between the incidents of neps and the increase in short fiber content during carding. An additional finding of this study is that the generation of neps was not uniform across the width of the carded web and is influenced by fiber load measured on the doffer in the cross machine direction.

An Experimental Investigation of a Micro Injection Molded Mechanical Device

2005 ◽  
Author(s):  
Alan M. Tom ◽  
Aleksandar K. Angelov ◽  
John P. Coulter
Keyword(s):  
Mechanical Properties ◽  
Experimental Investigation ◽  
Injection Molding ◽  
Processing Parameters ◽  
Primary Objective ◽  
Crystalline Materials ◽  
Reduced Modulus ◽  
Molded Parts ◽  
Secondary Objective ◽  
Injection Molded

The primary objective of this study, through a scientific experimental investigation, was to determine optimum injection molding processing parameters on semi-crystalline materials HDPE and POM focusing on mechanical properties, obtained thru the use of a nano-indenter, of micro gears being manufactured on non-heated and heated mold bases. A secondary objective was to initiate a similar experimental study using amorphous COC material. Taguchi’s method utilizing an L-9 orthogonal array was used to determine the effects of Tnoz, Tmold, Pinj, Vinj, Ppack, and tpack injection molding processing parameters. A nano-indenter was used to determine investigated mechanical properties on final injection molded parts that included stiffness (S), reduced modulus (Er), and hardness (H). Results showed HDPE, POM and COC, heated mold experiments exhibiting increases in mechanical properties S, Er, and H, on the order of 1.2–4.0 times those of non-heated molding trials. Decreases in optimum molding conditions for Tnoz, Pinj, and Ppack was also observed for heated molding trials. The highest mold temperatures and injection pressures tested did not produce greatest optimum molding conditions. However, largest packing times tested produced optimum molding conditions.

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