A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Biswas, D. K.
- An Approach to the Design Analysis for Continuous Drive Friction Welding Machine
Authors
1 National Metallurgical Laboratory, Jamshedpur, IN
Source
Indian Welding Journal, Vol 26, No 1 (1993), Pagination: 27-32Abstract
Friction welding (F.W) is a process to successfully join a wide variety of similar and dissimilar metal rods with high energy efficiency. Various ranges of the F. W. machines are now in use in various parts of the world. In India, some automobile manufacturing industries use imported Friction Welding machines. The indegenous machines are yet to be developed, this article deals with the design analysis and scope of indegenous development of Continuous Drive F. W. machines.
- Reclamation of Machinery Components using Plasma Weld Surfacing
Authors
1 Naval Chemical and Metallurgical Laboratory, Naval Dockyard, Bombay - 400 023, IN
Source
Indian Welding Journal, Vol 20, No 1 (1988), Pagination: 300-305Abstract
Reclamation techniques are gaining moment um due to the cost and downtime involved in the replacement cost of worn out components One of the latest techniques for rejuvenating worn out critical machinery components is to combine the plasma spraying and plasma welding techniques in a semi-transferred arc mode. Arc is controlled independently and precisely so that optimum deposition and welding currents can be used to melt and spray the metal powders of interest and then weld it to the base metal. Thus the process provides a good metallurgical bonding with minimum heat input and avoids warpage which is a vital parameter in case of critical components where dimensional stability to close tolerance are important.
Many important machinery components have been reported to be reclaimed using this technique. However, the success of the process depends on many important parameters like choice of powder metal, joint fit-up, machine settings, control of gas flows, powder feed rate, arc length, etc. The paper describes in detail the process used for reclamation of a critical aircraft component using programmable plasma weld surfacing machine and also mentions evaluation technigues used for assessment of quality standard of weld surfacing.
- An Experience in Fabrication and Welding of a Large Aluminium Alloy Storage Tank
Authors
1 Fibres of India, IN
2 Mehar Industries, IN
Source
Indian Welding Journal, Vol 7, No 1 (1975), Pagination: 14-26Abstract
With the high cost of stainless steel in India, the designers of chemical plants are increasingly on the look out for alternative materials of construction. In many applications, aluminium and its alloys can replace the use of stainless steel. This is particularly true for storage tanks where contamination is the criterion of material selection.