B. Narayana Reddy

Sri Venkateswara University

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P. Hema

Sri Venkateswara University

G. Padmanabhan

Sri Venkateswara University

G. Bhanodaya Reddy

Sri Venkateswara University

M. Reddeiah

S.M. Basha

Indian Institute of Technology Tirupati

Iosr Journals

Christ University

G. Vishnu Vardhan

Aditya Birla (India)

Y. Prasanth Reddy

SRM Institute of Science and Technology

T. Bhargava Ramu

R. Venkata Ramana

Vignan's Foundation for Science, Technology & Research

Cooperative Institutions

Sri Venkateswara University

Sri Chandrasekharendra Saraswathi Viswa Mahavidyalaya

Indian Institute of Technology Tirupati

Sardar Vallabhbhai National Institute of Technology Surat

Jawaharlal Nehru Technological University Anantapur

Christ University

Al Baha University

Babcock University

University of Dhaka

Great Zimbabwe University

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Influence of CO2 Laser Beam Welding Process Parameters on Mechanical Properties of Alloy AISI 4130 Steel Welded Joints

Lecture notes on multidisciplinary industrial engineering (2019)

B. Narayana Reddy P. Hema G. Padmanabhan

10.1007/978-981-13-7643-6_6

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Citations (3)

Mechanical and Metallurgical Characterisation of CO₂ Laser Beam Welding AISI 4130 and AISI 310 Sheets of Steel

Strojnícky časopis/Journal of Mechanical Engineering (2021)

B. Narayana Reddy P. Hema Chevireddy Eswara Reddy

Abstract Laser Beam Welding (LBW) is the fusion welding technique in which coalescence is produced by heating the work piece by impingement of concentrated beam of laser light. In this paper a full depth butt welding of alloy steel AISI 4130 and stainless steel AISI 310 of 2 mm thickness by using CO 2 Laser Beam Welding machine has been performed. Design of experiment is done by using Taguchi method L 25 i.e. level 5 by considering process parameters i.e. power, welding speed, beam angle, focal point position and focal length. The experimental output results that are measured for the mechanical properties of welds (Ultimate Tensile Strength and Hardness). The analysis was carried out to explain the influence of the LBW processing parameters values on the mechanical and microstructural aspects. The weld Joint is analysed by Optical Microstructure and Scanning Electron Microscopy (SEM). The Energy Dispersive X-Ray Analysis (EDAX) was carried out to determinate the chemical composition of the weld zone.

Fusion welding

Butt joint

Coalescence (physics)

Butt welding

10.2478/scjme-2021-0014

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Citations (1)

Experimental Investigation on Laser Beam Welded Joints of Dissimilar Metals and Optimization of Process Parameters Using Firefly Algorithm

Lecture notes in mechanical engineering (2020)

B. Narayana Reddy P. Hema Y. Prasanth Reddy G. Padmanabhan

Firefly Algorithm

10.1007/978-981-15-1201-8_88

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Experimental Investigations of CO2 Laser Beam Welded Joints of AISI 304 and AISI 4130 Steels

Lecture notes in mechanical engineering (2023)

B. Narayana Reddy P. Hema

Coalescence (physics)

Fusion welding

Design of experiments

10.1007/978-981-19-7612-4_28

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Scanning electron microscopic study of precipitation during aging of cast aluminium alloy-354

Figshare (2014)

Iosr Journals B. Narayana Reddy

10.6084/m9.figshare.1222634

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Experimental investigation on similar and dissimilar alloys of stainless steel joints by laser beam welding

Advances in Materials and Processing Technologies (2021)

B. Narayana Reddy P. Hema G. Padmanabhan

Alloy and Stainless steel plates have to be welded to meet the present generation of smart manufacturing by Laser Beam Welding. Laser Beam Welding (LBW) plays an important role in joining of metals or welding the parts of similar/dissimilar metals. Due to its high-speed weldability with high laser beam power result in high strength and low heat affected zones with better appearance and quality. AISI Stainless steels which are widely used in various industries due to their resistance to corrosion. There is often a need to study the effect of process parameters, while fabricating stainless steel structures and/or when weld stainless steel to low-alloy steels. A solemn attempt is made in the present research work to join similar and dissimilar AISI 4130 Alloy and AISI 309 Stainless Steel joints by CO2 Laser Beam Welding with an objective to investigate the effects of process parameters. The weld joints are studied based on their Bead Width and Micro Hardness. The performance characteristic curves are drawn and analysed the influence of the process parameters on the weld joints. The Whale Optimisation Algorithm is used to identify the optimal combination of process parameters based on the experimental output results of Bead Width and Micro Hardness.

Weldability

Plastic welding

10.1080/2374068x.2020.1865125

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Citations (5)

Experimental Study of Laser Beam Welding Process Parameters on AISI 4130-309 Joint Strength

Materials Today Proceedings (2020)

B. Narayana Reddy P. Hema G. Vishnu Vardhan G. Padmanabhan

Fusion welding

10.1016/j.matpr.2020.03.405

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Studies on effect of wire EDM process parameters on machining characteristics of Inconel 825 plate

Materials Today Proceedings (2023)

B. Narayana Reddy R. Venkata Ramana S.M. Basha T. Bhargava Ramu

Inconel

Electrical Discharge Machining

10.1016/j.matpr.2023.04.469

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Citations (2)

Influence of Cotton Seed Oil over The Ignition Delay, Emissions and Performance of A Ci Engine

Journal of University of Shanghai for Science and Technology (2021)

G. Bhanodaya Reddy B. Narayana Reddy

Rising petroleum derivative costs and ecological contamination with their utilization have brought expanded worldwide interest in biodiesel creation and use. The journey for bio-energy in this manner has been supported all through the world to care for the climate and substitute bio-diesel with petroleum products. The goal is to assess the seed oil of cotton and to utilize it as an elective fuel. Cottonseed oil has diesel-like fuel properties. Cottonseed oil is blended in with diesel in various extents viz 5%, 10%, 15%, 20%, and 25% experimented in a compression ignition engine. Bio-diesel is generated from cottonseed through a compound interaction called transesterification. With the petrol energizes right now known and their expanding interest for utilization, it is expected that they won't keep going long. By examination, the exhibition w known and their expanding interest for utilization, it is expected that they won't keep going long. By examination, the exhibition attributes give off an impression of being improved with the utilization of cottonseed oil for brake power, CO, HC, NO and NOx emissions.

Cottonseed

Cottonseed oil

10.51201/jusst/21/04218

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Optimization of Process Parameters for the Machining of Microslot on Copper Workpiece Using LBM by Grey Relational Analysis and Anova

International Journal of Research (2020)

P. Hema M. Reddeiah B. Narayana Reddy

Laser-beam machining is a non-conventional machining process. Laser-beam machining is a thermal material-removal process that utilizes a high-energy, coherent light beam to melt and vaporize particles on the surface of metallic and non-metallic workpieces. LBM is newer thermal technique also widely accepted in industry today. Laser beam machining is based on the conversion of electrical energy into light energy and then to thermal energy. The main purpose of this paper is to analyse the impact of the parameters associated with the CO2 laser cutting of the micro slot having a width of 0.3 mm and a length of 20 mm on a copper plate of 4 mm thickness. Micro-slots or micro-channels are one such type of feature which has more applications in the fabrication of miniature devices, micro-fluidic devices or heat exchangers. The experiments are planned and conducted on the basis of the typical L27 Taguchi orthogonal array with three laser cutting parameters viz. Laser power, gas pressure, cutting speed and organised at three stages. The result showed that the parameter like power has greater influence on MRR and cutting Speed has greater influence on Kerf Width and gas pressure has less significance compare to both.

Grey relational analysis

Orthogonal array

Laser beam machining

Specific energy

Source

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Citations (1)