scholarly journals Application of FMEA in the Quality Estimation of Metal Matrix Composite Castings Produced by Squeeze Infiltration

2017 ◽  
Vol 62 (4) ◽  
pp. 2171-2182 ◽  
Author(s):  
K. Gawdzińska ◽  
L. Chybowski ◽  
W. Przetakiewicz ◽  
R. Laskowski
Keyword(s):  
Metal Matrix Composite ◽  
Metal Matrix ◽  
Metal Composite ◽  
Matrix Composites ◽  
Quality Estimation ◽  
Effect Analysis ◽  
Squeeze Infiltration ◽  
Composite Casting ◽  
Fmea Method

AbstractMetal matrix composites (MMCs) are still scarcely described due to various combinations of used materials and a wide array of technologies. Applying the Failure Mode and Effect Analysis (FMEA) method to describe the quality of metal composite castings may contribute to eliminating specific (characteristic only to these materials) defects. This part of the analysis determines the criticality numbers, meaning the frequency of a given failure, detectability level and significance of a given failure to the group of specific composite casting failures. It contributes to establishing the priority number (P), which is a measure used to assess risk, a notion essential in discussing quality in a composite casting.

scholarly journals Tool wear and surface quality of metal matrix composites due to machining: A review

2016 ◽  
Vol 231 (5) ◽  
pp. 739-752 ◽  
Author(s):  
Ferial Hakami ◽  
Alokesh Pramanik ◽  
Animesh K Basak
Keyword(s):  
Tool Wear ◽  
Metal Matrix Composite ◽  
Metal Matrix Composites ◽  
Surface Quality ◽  
Tool Life ◽  
Metal Matrix ◽  
Cutting Tool ◽  
Matrix Composites ◽  
Machined Surface

Higher tool wear and inferior surface quality of the specimens during machining restrict metal matrix composites’ application in many areas in spite of their excellent properties. The researches in this field are not well organized, and knowledge is not properly linked to give a complete overview. Thus, it is hard to implement it in practical fields. To address this issue, this article reviews tool wear and surface generation and latest developments in machining of metal matrix composites. This will provide an insight and scientific overview in this field which will facilitate the implementation of the obtained knowledge in the practical fields. It was noted that the hard reinforcements initially start abrasive wear on the cutting tool. The abrasion exposes new cutting tool surface, which initiates adhesion of matrix material to the cutting tool and thus causes adhesion wear. Built-up edges also generate at lower cutting speeds. Although different types of coating improve tool life, only diamond cutting tools show considerably longer tool life. The application of the coolants improves tool life reasonably at higher cutting speed. Pits, voids, microcracks and fractured reinforcements are common in the machined metal matrix composite surface. These are due to ploughing, indentation and dislodgement of particles from the matrix due to tool–particle interactions. Furthermore, compressive residual stress is caused by the particles’ indentation in the machined surface. At high feeds, the feed rate controls the surface roughness of the metal matrix composite; although at low feeds, it was controlled by the particle fracture or pull out. The coarser reinforced particles and lower volume fraction enhance microhardness variations beneath the machined surface.

Effect of Material and Technological Conditions on Quality of Metal Matrix Composite Castings

2013 ◽  
Vol 197 ◽  
pp. 180-185 ◽  
Author(s):  
Katarzyna Gawdzińska ◽  
Dorota Nagolska ◽  
Leszek Wojnar
Keyword(s):  
Metal Matrix Composite ◽  
Human Impact ◽  
Technological Process ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Quality Characteristics ◽  
Metal Composite ◽  
Individual Quality ◽  
Ishikawa Diagram

The paper presents a proof, which has been made by analyzing technological process of tested materials, that a set of quality characteristics of metal composite castings has to be different from the set of quality characteristics of castings produced out of traditional materials. However, some characteristics are similar for both material groups. These characteristics (pertaining to a set of quality characteristics of composite castings) that have been named as specific, have not been determined before. The set of characteristics has been determined on the basis of material and technological conditions as well as on methodology of diagnosing the castings quality. Basing on the Ishikawa diagram, weights of individual quality characteristics have been set along with values for particular material and technological causal groups, i.e. management, human impact, methods of manufacturing and material of composite castings and manufacturing workstation.

TEM examination of 2014-SiC metal matrix composite

1988 ◽  
Vol 46 ◽  
pp. 726-727
Author(s):  
M. G. Burke ◽  
M. N. Gungor ◽  
P. K. Liaw
Keyword(s):  
Metal Matrix Composite ◽  
Metal Matrix Composites ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Tensile Deformation ◽  
Microstructural Characterization ◽  
Thin Foil ◽  
Matrix Alloy ◽  
Matrix Composites ◽  
Ion Milling

Aluminum-based metal matrix composites offer unique combinations of high specific strength and high stiffness. The improvement in strength and stiffness is related to the particulate reinforcement and the particular matrix alloy chosen. In this way, the metal matrix composite can be tailored for specific materials applications. The microstructural characterization of metal matrix composites is thus important in the development of these materials. In this study, the structure of a p/m 2014-SiC particulate metal matrix composite has been examined after extrusion and tensile deformation.Thin-foil specimens of the 2014-20 vol.% SiCp metal matrix composite were prepared by dimpling to approximately 35 μm prior to ion-milling using a Gatan Dual Ion Mill equipped with a cold stage. These samples were then examined in a Philips 400T TEM/STEM operated at 120 kV. Two material conditions were evaluated: after extrusion (80:1); and after tensile deformation at 250°C.

Quality Features of Metal Matrix Composite Castings

2013 ◽  
Vol 58 (3) ◽  
pp. 659-662 ◽  
Author(s):  
K. Gawdzińska
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Matrix Material ◽  
Quality Characteristics ◽  
Material Quality ◽  
Reinforcement Material ◽  
Composite Casting ◽  
Quality Features

Abstract In this paper it is stated, that a set of quality features of metal matrix composite castings differs from the same set for castings of classic materials, although some features are common for both of these material groups. These features (pertaining to a set of quality characteristics of composite castings) have been named as specific, they have not been determined yet and a description of material quality should be performed (according to the qualitology) on a principle of description of quality characteristics of this product. Therefore, this set of features has been determined. It was proposed to add the following characteristics to the set of specific features of composite castings quality: matrix material, reinforcement material, binding between components and porosity of the composite casting. In this set a sub-set of quality characteristics of composite castings was also determined.

scholarly journals Friction Stir Processing of Hybrid Al-Si Alloy Metal Matrix Composite

2021 ◽  
Author(s):  
Vipin Sharma ◽  
Yogesh Dewang ◽  
Pardeep Kumar Nagpal ◽  
Suresh Kumar
Keyword(s):  
Metal Matrix Composite ◽  
Metal Matrix Composites ◽  
Matrix Composite ◽  
Friction Stir Processing ◽  
Metal Matrix ◽  
Full Potential ◽  
Matrix Composites ◽  
Friction Stir ◽  
Zircon Sand ◽  
Sand Particles

Abstract Metal matrix composites are an important class of material that is developing rapidly to fulfil the diversified engineering requirements. The metal matrix composites are attractive owing to superior properties as compared to monolithic material. Their properties are dependent on various factors and fabrication techniques. The metal matrix composites are associated with several issues which hinder their full potential. In the present study friction stir processing is applied on the metal matrix composite as a post-processing operation. The friction stir processing offers many advantages owing to the solid-state nature of the processing. Stir cast metal matrix composites are prepared by using zircon sand particles of 50 µm in the matrix of LM13 aluminium alloy. The friction stir processing is applied on the metal matrix plates at a constant rotational speed and traverse speed of 1400 rpm and 63 mm/min, respectively. Multiple passes of friction stir processing are applied to elucidate the effect of the number of passes on microstructural modification. Microstructural examination showed a significant improvement in eutectic silicon morphology and distribution of zircon sand particles. A more than 5 times reduction as compared to the initial size was observed in the zircon sand particles after four passes of friction stir processing. The processed metal matrix composite also exhibits improvement in tensile strength and hardness.

scholarly journals Solidifying behavior and Characterization of Al (LM6) +SICP Metal Matrix Composites

2019 ◽  
Vol 8 (6) ◽  
pp. 2397-2403 ◽  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Cooling Rate ◽  
Metal Matrix Composite ◽  
Metal Matrix ◽  
Matrix Composites ◽  
Liquid Temperature ◽  
Step Size ◽  
Different Parts

This paper presents the investigation of moderate properties of solidified Al (LM6)+SiCp metal matrix composite (AMMC). These AMMC is fabricated by considering five different parts of casting and different weight of SiCp for reinforcement. The SiCp wt. % is varied from 5 wt. % to 15 wt. % with a step size 5 %. During casting, temperature is measured using K-thermocouple and temperature vs. solidification curve is traced. These results are compared with the solidification results of Al (LM6) alloy. It is observed that the solidifying duration of AMMC increased as well as decreased liquid temperature by adding SiCp to it. The trend of the curve is also presented that the cooling rate and the duration of solidification are different for different part of casting. Mechanical property of the each five parts of casting is tabulated. It is observed from the properties that the mechanical properties of AMMC increased by increasing the wt. % of the reinforced particles SiCp.

scholarly journals Contemporary Progresses in Ultrasonic Welding of Aluminum Metal Matrix Composites

2021 ◽  
Vol 8 ◽  
Author(s):  
Senthil Kumaran Selvaraj ◽  
Kathiravan Srinivasan ◽  
Utkarsh Chadha ◽  
Rajat Mishra ◽  
Kurane Arpit ◽  
...  
Keyword(s):  
Metal Matrix Composite ◽  
Metal Matrix Composites ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Welding Process ◽  
Ultrasonic Welding ◽  
Matrix Composites ◽  
Aluminum Metal ◽  
Aluminum Metal Matrix Composites ◽  
Aluminium Metal

Graphical AbstractA Brief Review of the Ultrasonic welding process flow and sequence for joining aluminium metal matrix composite.

scholarly journals Study on Vibration Tapping for SiCp/Al Particle-reinforced Metal Matrix Composite

2018 ◽  
Vol 228 ◽  
pp. 04005
Author(s):  
Yang Liu ◽  
Jing Zhao
Keyword(s):  
Service Life ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Torsional Vibration ◽  
Metal Matrix ◽  
Low Frequency ◽  
Cutting Fluid

Aiming at answering the question that low tap service life of ordinary tapping and bad thread quality on particle-reinforced metal matrix composite SiCp/Al, the reason of question and the mechanism of low-frequency torsional vibration tapping are analyzed. The experiments were carried out to compare the tap service life and the thread quality of vibration tapping with ordinary tapping without cutting fluid. It indicates that vibration tapping could make tapping torque reduce greatly, the tap service life could be prolonged twice comparing with continuous tapping without cutting fluid, and could ensure the good thread quality. Moreover, it promotes metal matrix composite’s further application.

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