AN INVESTIGATION OF TENSILE STRENGTH, HARDNESS AND HAZ OF DISSIMILLAR MATERIALS SS3041 & KOVAR ALLOY BY LASER WELDING
| Author(s) | : | Mr. Jay N. Bhamare, Mr. Amit Thakkar |
| Institution | : | Department of Mechanical Engineering (CAD/CAM), LJIET, Ahmedabad |
| Published In | : | Vol. 2, Issue 5 — May 2015 |
| Page No. | : | 1168-1174 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
Very less work has been done on laser welding of dissimilar material. Laser welding of KOVAR Alloy wasstudied in butt welding in SS304L. In order to decrease formation of intermetallic components during laser welding,effect of peak power, pulse duration and welding speed and was investigated. Tensile test, Hardness test and heataffected zone test was performed to identify the effect of each parameter on the weld. Results showed that increasingpeak power (in constant pulse energy), pulse duration (in constant peak power) and welding speed (in constant pulseenergy and peak power) will decrease tensile strength. On the other hand, decreasing the mentioned parameters willcause destructive effects such as inadequate penetration depth, spattering and cavity formation. Improvement in thetensile strength and decrement in hardness and Heat Affected Zone was attributed to low values of intermetalliccomponents in weld metal.
Mr. Jay N. Bhamare, Mr. Amit Thakkar, “AN INVESTIGATION OF TENSILE STRENGTH, HARDNESS AND HAZ OF DISSIMILLAR MATERIALS SS3041 & KOVAR ALLOY BY LASER WELDING”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 2, Issue 5, pp. 1168-1174, May 2015.
