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1348 articles for “Metallic”
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Evaluation of Epoxy Granite as an Alternate Material for Lathe Bed
Abstract: Machine Tool is a machine that gives the desired shape to the work with required accuracy of removing metal from the work in the form of chip. Beds, columns, bases, head stock are known as ‘structure’ in a machine tool. The Lathe Bed should be sufficiently rigid to prevent deflection under tremendous cutting pressure transmitted through the tool-post and carriage to the Lathe Bed. It must be massive with sufficient …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 59–68 Read article
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Analysis and Characterization of Tensile Property of Mg MMC using ANSYS
Abstract: The objective of the this research paper is to predict the stress and strain values of magnesium metal matrix composites using finite element analysis (FEA) and compare with the universal testing machine (UTM) results through the tensile load. The composites were prepared by semi solid stir casting process. Tensile specimens with ASTM B557 standard dimensions were prepared from the composites. These specimens were subjected to uni-axial tension under the 10 …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 1–5 Read article
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A Review: Effect of Different Shielding Gas on Weld Penetration in Stainless Steel in GTAW Process
Abstract: Gas tungsten arc welding (GTAW) is high quality and high precision welding process which is suitable for welding thin metals. Inert gases as helium and argon, carbon dioxide and nitrogen are used as a shielding gas to prevent the weld bead from air, dust and other contaminations in welding. There are so many welding process parameters which affect the weld quality in GTAW. Important process parameters which mainly affect the …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 13–18 Read article
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Investigating the Effect of Inoculation on Microstructure of IS: 210 in Casting of Bracket: A Review
Abstract: The objective of present investigation is to review the effect of the inoculants on the microstructure of grey cast iron. Effects of the inoculants were investigated through metallurgical analysis of the matrix microstructure and the mechanical properties of the castbracket. Effect of silicon carbide and ferro-silicon at different temperature and at different weight percentage on grey cast iron is investigated. The results show that both, the SiC and the conventional …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 47–51 Read article
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Modification of Gating System in Casting Process Using Simulation Tool to Reduce Defects
Abstract: We all know that sand casting is one of the oldest methods used for accurate and precise manufacturing of parts and components. Foundry industry in our country is suffering from poor quality and productivity in sand casting due to involvement of number of process parameters. In past years, trial and error method was used to reduce defects in solidification. To find and eliminate defect and problem is very difficult task. …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 7–10 Read article
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An Investigation of Shrinkage Defect in Investment Casting of SS304 Ball Valve: A Review
Abstract: In the manufacturing of ball valve, which requires corrosion resistance and long service life enabling the production with high efficiency, there have been some studies to achieve its forming method for high durability and designated smooth surface. The process of investment casting also known as “lost wax casting”, is one of casting methods to fabricate metal part with a complex shape. Flow behavior of stainless steel grade 304 at the …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 22–25 Read article
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Ultrasonic Pulse Echo Inspection in Resistance Spot Welding for Stainless Steel SS304
Abstract: Resistance spot welding is a popular metal joining process which is widely used in automobile industry, household and domestic appliances manufacturing industry, and fabrication industry like air craft manufacturing industries [10]. Experimental investigation carried is out on inner and outer sleeve which is used in stove manufacturing industry. Material taken is stainless steel SS304 for experiment having thickness 0.5 mm. Experimental investigation is based on two defects which are interfacial …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 40–43 Read article
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Temperature-Programmed Reduction Studies on Fe-promoted Pt/Al2O3 Bimetallic Catalysts
Abstract: Pt/Al2O3-based bimetallic catalysts were prepared using surface organometallic method (SOMC) to obtain catalysts with a nominal promoter to platinum surface atomic ratio of 1:2 and 1:1 (corresponding to typically 0.2–0.4 mass% of the promoting metals; here Fe). Temperature-programmed reduction (TPR) studies showed two distinct temperature regions of hydrogen uptake during reduction by the parent Pt/Al2O3 (5 mass%) and the Fe-promoted catalysts. The shift in peak maxima in the case of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 2, Issue 2, 2011 · pp. 24–31 Read article
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Synthesis and Characterization of Composites of Beryllia and Lithium-titanate Produced by Solid State Route
Abstract: Beryllium oxide (BeO) is proposed to be used as a constituent for lithium titanate (Li2TiO3) based composite material for neutron multiplication and breeding in International Thermonuclear Experimental Reactor (ITER) for its high thermal conductivity, low neutron absorption cross-section and high neutron reflection cross section. In the present investigation, we report the synthesis of single phase BeO-Li2TiO3 composites with BeO to Li2TiO3 (produced through solid state route) in volume ratios of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 5, Issue 1, 2014 · pp. 17–27 Read article
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Synthesis and Characterization of Schiff Bases Derivatives of Heterotrimetallic [Al(III); Sn(II); Ti(IV)]-µ-oxoisopropoxide-µ-oxon-propoxide [SnO2TiAl(OPri )2(OPrn )3]
Abstract: Tin diacetate and aluminium isopropoxide in equimolar proportion in xylene affords the complex [(OAc)SnOAl(OPri )2] which on reaction with Ti(OPrn )4 in 1:1 molar ratio yielded a new organoheterotrimetallic-μ-oxoisopropoxide-μ-oxon-propoxide [SnO2TiAl(OPri )2(OPrn )3] with continuous liberation of isopropyl acetate and propyl acetate formed during the course of reaction. The preparation of Schiff base complexes of the compound [SnO2TiAl(OPri )2(OPrn )3] was carried out in refluxing benzene by the reaction of µ- …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 2, 2016 · pp. 27–37 Read article
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Structural Investigations of NiFe2O4 Synthesised by the Pyrolysis of Single Source Precursor
Abstract: NiFe2O4 nanoparticles have been synthesized using the single source precursor [NiFe2(cin)3(N2H4)3] via pyrolysis thermal decomposition route. The single source precursor prepared by a simple precipitation method, was characterised by hydrazine and metal analyses, infrared spectral analysis and thermo-gravimetric analysis. Using appropriate annealing conditions, NiFe2O4 nanoparticles were synthesised by the thermal treatment of the precursor. From XRD and HRTEM studies, the particle size of the sample was found to be around …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 3, 2016 · pp. 12–16 Read article
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Effect of Notch on Low Cycle Fatigue of AA 2024-T351
Abstract: Notch effect on low cycle fatigue of AA 2024-T351 was investigated. Decreasing notch curvature leads to less cyclic hardening. Values of fatigue strength exponent (b) and fatigue ductility (c) for notch specimens were out of range of metallic materials. The SEM examination showed multi-crack origins with secondary cracks and a large final-fracture zone for unnotched specimens, while there was small final fracture zone close to the center of the specimen …
Published in Journal of Experimental & Applied Mechanics · Vol. 4, Issue 3, 2013 · pp. 15–21 Read article
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Analysis of Mechanical Properties of EN 24 Steel After Austempering and Martempering
Abstract: :- The mechanical properties of steel decide its applicability for a particular condition. Heat treatment processes are commonly used to enhance the required properties of steel. The present work aims at experimentally investigating the effects of normalizing, Austempering and timed quenching on AISI 4340 steel. The material was machined to ASTM standards and then different tests like microstructure analysis, hardness test, impact test, and were carried out after the heat …
Published in Journal of Experimental & Applied Mechanics · Vol. 5, Issue 3, 2014 · pp. 29–36 Read article
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Computational and Experimental Analysis of Nitride Coated Cutting Tools
Abstract: 800x600 Utilization of harder and tougher cutting tool materials is essential in cutting tool industry.Nitride coated cutting tools are becoming alternative materials for machining various materials due to its high mechanical and tribological properties. Demand for coated cutting tools is increasing because of reduced cutting force, increased hardness and wear resistance.In this research article, the TiAlN and CrN coated cutting tool materials for metal removal are studied and compared with …
Published in Journal of Experimental & Applied Mechanics · Vol. 6, Issue 3, 2015 · pp. 65–72 Read article
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Green Productivity Indexing: A Practical Approach for Incorporating Environmental Shield into Sand Casting Foundry
Abstract: The goal of this research is to describe an example for developing frame work of environmental indicators for incorporating environmental shield into sand casting foundry. This research also describes continuous improvement (CI) with green productivity index (GPI) experimented in a sand casting industry, which includes environmental and economic performances. The data were collected for this described research from a sand casting foundry, Krislur Castomech Pvt. Ltd., Bhavnagar, Gujarat, India; and …
Published in Journal of Experimental & Applied Mechanics · Vol. 7, Issue 1, 2016 · pp. 7–17 Read article
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Experimental Investigations of Mechanical Properties of Friction Stir Welded Joints of Aluminium Alloys AA6063 and AA6082
Abstract: One of the advantages of friction stir welding process is its ability to join dissimilar metals and alloys. The objective of this study was to study the possibility of joining two dissimilar Al alloys, typically A6082 and A6083 using in FSW. In this experiment, joint properties of A6082 and 6063 were studied. Three parameters considered were tool rotation speed, welding speed, depth of cut with three levels; and nine runs …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 2, 2017 · pp. 45–52 Read article
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Isolation and Characterization of Protease Producing Organism Bacillus Species from Slaughter House Waste
Abstract: The purpose of this investigation was to isolate protease producing bacteria from slaughter house waste collected in local area of Kaliakkavilai. The Bacillus sp. was identified by several biochemical and physiological tests. The effect of different production parameters such as pH, temperature, metal ions concentration and substrate concentration for protease production by the isolated bacterial strain were studied. The enzyme production was assayed in submerged fermentation with optimized parameters to …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 3, Issue 3, 2013 · pp. 8–14 Read article
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Microorganism Communities Response of Ecological Changes in Post Tin Mining Ponds
Abstract: The ecological changes are the main problem of post tin mining activities, such as post tin mining ponds and it has occurred for a long time chronosequence. The understanding of how post tin mining activities bring ecological changes and how the microorganism communities respond to these environment changes becomes an important part to explore the potential of bioremediator to accelerate the recovery of water quality as water sources for secondary …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 6, Issue 1, 2016 · pp. 17–26 Read article
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Eddy Current Imaging Technique for Quantitative Analysis of Defects in Aircraft Components
Abstract: Aircraft industry’s concern is primarily in the area of safety of components and structures and it is extremely important to constantly evaluate and monitor the structures and systems for defects and anomalies noninvasively, thereby preventing unplanned outages and shutdowns as also catastrophes. To accomplish this, different nondestructive testing techniques have been in use since decades. Each technique is unique by itself and has its associated advantages and limitations; a suitable …
Published in Journal of Aerospace Engineering & Technology · Vol. 2, Issue 1, 2012 · pp. 1–5 Read article
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Innovative Approaches to Improve Electrochemical Machining Performance
Abstract: New developments in material science have invented high-strength temperature-resistant (HSTR) materials with many extraordinary qualities. Now a day's these advanced and smart materials such as nickel-based super alloys, stainless steel and tool steel are the demands of automotive, aerospace, electronics, medical devices and communication industries for production of more durable and reliable products. Machining of these materials is a challenge and traditional manufacturing techniques are often found unfit for the …
Published in Journal of Aerospace Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 9–16 Read article