Effect of Welding Current and Electrodes on Impact Strength of Weld in Shielded Metal Arc Welding Process

Authors

  • Deepak Raghuvanshi, Rudra Pratap Singh

Abstract

In several operations in our industries the joining of materials is the need. The shielded metal arc welding process is one of the most popular and commonly used arc welding processes. The impact strength of any structural member becomes important in several cases where the shock loading is involved. In the present work the investigation of the effect of three different types of electrodes at three different welding currents in shielded metal arc welding process utilizing Low Carbon Steel plate of API 5L Grade X 52, was done for impact strength. The three different electrodes as E 6013, E 7016 and E 7018 and the varying currents as 90 A, 100 A and 110 A. Total 18 pieces were used to obtain 9 different welds which were used to analyze the effect of current and the electrode on impact strength. The dimensions of the work pieces were taken as 150 mm x 50 mm x 10 mm. The values of impact strength in each weld were written in a table and respective diagrams were drawn to make clear the effect of welding current on impact strength for the three different electrodes. It was found that impact strength of weld decreased with increase of current for all the three types of electrodes.

Downloads

Published

2020-05-17

Issue

Section

Articles