Dr SENTHIL KUMARAN SELVARAJ - RESEARCH PROJECT

RESEARCH PROJECT-On Going

Title of Project : "Investigation of Characteristic Performance of Armour Weldments under Sub-Zero Temperature "

Amount : 9.77 Lakhs

Period : 2 YEARS(2022-2024)

Funding Agency : Combat Vehicles Res. Dev. Estt (CVRDE)-DRDO -CVRDE/MMG/SPC/02/22-23

RESEARCH PROJECT-Completed

Title of Project : "Development and Characterization of Carbon Fiber reinforced Ceremet Brake Pad (CBP) containing Nano Encapsulated Lubricant for Achieving better Tribological and Braking Performance "

Amount : 41.95 Lakhs

Period : 3 YEARS(2020-2023)

Funding Agency : Armament Research Board (ARB)-DRDO -ARMREB/MAA/2020/226

OBJECTIVES

1.To formulate a Cermet brake pad composite composed of carbon fiber reinforcement, bio ceramic (Hydroxyapatite derived from cow bone) and nano encapsulated GaSe by LaF3 along with some matrix materials.

2.To analysis the frictional behavior and wear of the composite at wide range of temperature (100 C-500 C) with Carbon fiber and nano encapsulated material.

3.To study the influence of Nano encapsulated friction modifier and its contribution in forming friction film and wear reduction

4.To evaluate physical, mechanical, thermal and Tribological properties as per ECE R90 standards.

5.To study the performance by varying the parameters such as speed, load, temperature and study the lubrication mechanism at microscopic level at the wear surface.

6.To develop a numerical model which will be capable predicting the composite behaviour at different loading conditions.

RESEARCH PROJECT-Completed

Title of Project : "An Investigation on Friction welding of SA 213 Tube To SA 387 Tube Plate Using an External Tool"

Amount : 25.70 Lakhs

Period : 3 YEARS(2014-2017)

Funding Agency : Department of Science and Technology, Science and Engineering Research Board, New Delhi-SERB-SB/FTP/ETA-0282/2013

OBJECTIVES

•To explore the feasibility of deploying friction welding process for joining SA 213 tube to SA 387 tube plate using an external tool.

•To optimize the process parameters of FWTPET using different techniques such as Taguchi, statistical Analysis of Variance (ANOVA) and Genetic Algorithm.

•To study the effect of backing block for improving the joint integrity of FWTPET process.

•To improve FWTPET process using with hole and without hole on tube preparations and to study the suitability of FWTPET process.

•To study the effect of metal flow during welding of tube to tube plate using different methods such as brass sheet insertion technique, steel ball insertion technique and filler plate addition technique.

•To investigate the effect of microstructure, mechanical properties and analyze the weld integrity of SA 213 tube to SA 387 tube plate using FWTPET process.

PROBLEM IDENTIFICATION

•Actually, conventional friction welding process has been used to join symmetrical shapes and in general friction welding is not suitable to weld tube to tube plate joints.

•The axial force may either bend the tube or push the tube out of the tube plate and hence it is difficult to achieve required temperature and pressure at the bond interface.

•conventional arc welding consumes more energy, pollute atmosphere and absolute joints.

•To achieve a high quality solid state bonding between tube and tube plate, FWTPET process was discovered.

•This process is capable of welding tube to tube plate of similar or dissimilar metals.

•Health hazards can be reduced, productivity can be increased and cost saving can be achieved in industries for joining FWTPET Process.

•The process variables considered in this research study are tool rotational speed, tube projection, depth of cut, tube diameter, with hole and without hole on the tube, thread pitch on the tube and plate thickness.

•The suitability of this process for different materials have also been studied.

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