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Chakravarty, S.
- Effect of Welding Parameters on the Weldability of ASTM 517 Gr.F Steels
Abstract Views :215 |
PDF Views:6
Authors
Affiliations
1 Central Marketing Office, Advani-Oerlikon Limited, L.B.S. Marg, Mumbai 400078, IN
1 Central Marketing Office, Advani-Oerlikon Limited, L.B.S. Marg, Mumbai 400078, IN
Source
Indian Welding Journal, Vol 34, No 4 (2001), Pagination: 19-23Abstract
Weldability of 30mm thick ASTM 517 Gr.F steel is studied and welding parameters with submerged arc welding process are established. It is seen that heat input for welding such joints is very critical and should be controlled in close tolerances. Maintaining high interpass temperature is also detrimental. It causes to form a brittle heat affected zone.
- Design of Stainless Steel Welding Consumables for Cryogenic Service
Abstract Views :231 |
PDF Views:5
Authors
Affiliations
1 Materials Development Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, IN
2 Kemtrode Pvt. Ltd,, Bangalore 560 001, IN
1 Materials Development Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, IN
2 Kemtrode Pvt. Ltd,, Bangalore 560 001, IN
Source
Indian Welding Journal, Vol 30, No 2 (1997), Pagination: 15-34Abstract
Austenitic stainless steels are commonly used as structural materials for cryogenic temperature application. The components fabricated using welding require that the welds should have desirable properties at cryogenic temperatures. This necessitates' the selection of right type of electrodes to provide a weld metal with beneficial properties such as tensile strength and impact properties. The various factors which characterize the weld metal such as solidification mechanism, optimum control of delta ferrite, resistance to hot cracking, minimum inclusion content, type of coating, heat input and the addition of rare earths are discussed with a view to elucidating the effect of these m improving the weld metal pertormance.- Study of Effect of Process Parameters on Cutting a Gear Profile on an Acrylic Plate Using Laser Beam Machining
Abstract Views :126 |
PDF Views:0
Authors
Affiliations
1 Mechanical Engineering Department, Brainware University, Kolkata-700124, IN
2 School of Laser Science and Engineering, Jadavpur University, Kolkata-700032, IN
3 Mechanical Engineering Department, IIEST, Shibpur-711103, IN
4 WMG, The University of Warwick, Coventry CV4 7 AL, GB
5 Mechanical Engineering Department, Jadavpur University Kolkata -700032, IN
1 Mechanical Engineering Department, Brainware University, Kolkata-700124, IN
2 School of Laser Science and Engineering, Jadavpur University, Kolkata-700032, IN
3 Mechanical Engineering Department, IIEST, Shibpur-711103, IN
4 WMG, The University of Warwick, Coventry CV4 7 AL, GB
5 Mechanical Engineering Department, Jadavpur University Kolkata -700032, IN
Source
Journal of the Association of Engineers, India, Vol 90, No 3-4 (2020), Pagination: 15-23Abstract
Laser beam machining (LBM) process deals with material removal with high precision using localized heating characteristics of lasers. Polymers used in different electrical, electronic and Micro-electromechanical systems need to be machined to get desired shape. Machining of these polymers is difficult using conventional machining process. With its large range of process parameters and precise localized heating, LBM provides solution to machining problems of polymers. In the present research, CAD is used to design gear profiles which can be used in electronic systems. These gears are cut from Acrylic film using LBM. The influence of different input parameters namely laser Power, weld Speed and Frequency of laser on profile geometry are studied. Response Surface Methodology (RSM) is used, with the responses chosen as Addendum Diameter (ADD) and Dedendum Diameter (DD). Results are further analyzed and correlations are made using ANOVA approach.Keywords
LBM, CAD, Addendum, Dedendum, RSM, ANOVA, Acrylic.References
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