Statistical Analysis on Weld Bead Geometry of Pulsed Current Micro-plasma Arc Welded AISI 316Ti Austenitic Stainless Steel Sheets

Authors

  • Ch. Swetha Sai Ganapathi Engineering College, Visakhapatnam, Andhra Pradesh, India
  • G. Siva Karuna Sai Ganapathi Engineering College, Visakhapatnam, Andhra Pradesh, India

Keywords:

Pulsed current, micro-plasma arc welding, austenitic stainless steel, weld bead geometry, AISI 316Ti

Abstract

Micro-plasma arc welding (MPAW) uses low amperage to join sheets, where the thickness is low, such that they can be used for manufacturing metal bellows, metal diaphragms etc. In the present work, pulsed current MPAW is used for joining 0.3 mm thick AISI 316Ti austenitic stainless steel sheets. Peak current, base current, pulse rate and pulse width are considered as input parameters and weld bead geometry parameters namely front width, back width, front height, back height are considered as output responses. Total 27 experiments are performed as per Box-Benhken design of response surface method. Weld bead geometry parameters are measured using metallurgical microscope. Empirical mathematical models are developed using statistical software (MINITAB). Analysis of variance (ANOVA) is carried out at 95% confidence level. Main and interaction effects are studied. Scatter plots are drawn to understand the variation of actual and predicted values of weld bead parameters.

Author Biographies

  • Ch. Swetha, Sai Ganapathi Engineering College, Visakhapatnam, Andhra Pradesh, India
    Department of Mechanical Engineering
  • G. Siva Karuna, Sai Ganapathi Engineering College, Visakhapatnam, Andhra Pradesh, India
    Department of Mechanical Engineering

Downloads

Published

2019-04-10

Issue

Vol. 6 No. 2 (2016)

Section

Articles

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.