OPTIMIZATION OF PROCESS PARAMETERS AND STUDY OF HARDNESS DURING HARD FACING OF MILD STEEL USING TAGUCHI METHOD
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 4, Issue 6
Abstract
Hard facing is an important tool in tribology in which a layer of wear resistant material deposited over base metal or substrate to improve surface characteristics. There are numerous processes and consumables available in the market to improve the surface characteristics of components. This technique has potential to deposit hard - faced layer o n substrate. The properties usually sought are greater resistance to wear from abrasion, impact, adhesion (metal - to - metal), heat, corrosion or any combination of these factors. Hard facing is applied only to specific areas of metal parts that are exposed t o wear. There is often no need to protect the entire surface of a component from wear. Hard facing can be applied selectively and in different thickness to suit the exact requirements of a piece of equipment, thereby proving a most economical way of combat ing wear. Shielded metal arc welding is most commonly used process for hard facing due to its easy availability and versatility of operation. Low carbon steel is selected for the present work as substrate material due to its low cost, easy availability an d variety of applications. In the present work a detailed study was done to study the effect of current, types of hard facing electrode and number of layers on substrate on micro - hardness and wear behavior of low carbon mild steel 1020 deposit by SMAW.
Authors and Affiliations
Mr. Vikas Kamboj , Er. Brij Bhushan , Dr. Abhishek Kamboj
Keywords
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