Effect of post weld impact treatment (PWIT) on mechanical properties of spot-welded joint

This paper focuses on the study of improvement for spot welding on the tensile shear and hardness by applying post weld impact treatment (PWIT) on the welded joint. The main objective of the research is to characterize and improve the mechanical properties of the joint. The method of PWIT used on th...

Full description

Saved in:
Bibliographic Details
Main Authors: Ghazali, F. A., Salleh, Z., Hyie, K. M., Rozlin, N. M. Nik, Hamidi, S. H. Ahmad, Padzi, M. M.
Format: Conference Proceeding
Language:English
Subjects:
Diamond pyramid hardness
Hardness
Hardness tests
Low carbon steels
Mechanical properties
Resistance spot welding
Shear properties
Shear tests
Steel plates
Welded joints
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper focuses on the study of improvement for spot welding on the tensile shear and hardness by applying post weld impact treatment (PWIT) on the welded joint. The main objective of the research is to characterize and improve the mechanical properties of the joint. The method of PWIT used on the welded joint was Pneumatic Impact Treatment (PIT). The concept of PIT on spot welding is that it improves the mechanical properties of the welded zone. The working sample was undergoing a resistance spot welding of joining two similar in dimension and material of a steel plate before treated. The dimension of both plate are 110 mm × 45 mm × 1.2 mm and the material used were low carbon steel (LCS). All the welded samples were tested for its mechanical properties by performing the tensile-shear and hardness test. Tensile-shear test was conducted on the spot welded, both treated and as-welded samples using crosshead speed of 2 mm/min, while hardness test was performed using 1kgf load via Vickers hardness indenter. The effects of PIT on tensile-shear properties and hardness were evaluated and found that the implementation of PIT has increased tensile shear and hardness significantly.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5010500