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Title: :  EXPERIMENTAL INVESTIGATION OF MECHANICAL PROPERTIES OF LASER WELDED DUAL PHASE STEEL JOINTS
PaperId: :  12512
Published in:   International Journal Of Advance Research And Innovative Ideas In Education
Publisher:   IJARIIE
e-ISSN:   2395-4396
Volume/Issue:    Volume 6 Issue 4 2020
DUI:    16.0415/IJARIIE-12512
Licence: :   IJARIIE is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Author NameAuthor Institute
Jape A DS.N.D.COE&RC Yeola ,Maharashtra, India
Ghodake A PS.N.D.COE&RC Yeola ,Maharashtra, India

Abstract

mechanical engineering
Dual phase, Microstructure and property, laser, fusion zone etc.
Dual phase (DP) steels have been widely used in the automotive industry to reduce vehicle weight and improve car safety. In such applications welding and joining have to be involved, which would lead to a localized change of the microstructure and property, and create potential safety and reliable issues under dynamic loading. The aim of the present study is to find out optimised parameter for laser welding and examine the rate-dependent mechanical properties, deformation and fracture behaviour of DP600 & DP980 steel and its welded joint (WJ) produced by Nd:YAG laser welding over a wide range of strain rates. The lasers welding were performs using three variable parameter laser power, welding speed & pulse duration. Taguchi based optimization of laser welding parameter was done with the help of L9 orthogonal array to achieve the maximum ultimate tensile strength. Taguchi base optimization of laser welding parameter shows that for the given condition, 400 W of laser power, 0.6 mm/sec welding speed & 6 ms pulse duration have as the optimal parameter. From ANOVA, laser power has the most significant contribution with 91.2%, followed by pulse duration 5.8% & welding speed 1.7 %. Laser welding results in not only significant micro hardness increase in the fusion zone (FZ) and inner heat-affected zone (HAZ), but also the formation of a softened zone in the outer HAZ. The microstructure of laser welded joint shows the formation of mostly marten’s tic structure in the fusion zone as that area experiences very high cooling rate during solidification corresponding to the optical micrograph representing the FZ microstructure of laser welded joint. DP600 welded joints exhibited an obvious yield point phenomenon at all strain rate, while the smooth & plastic flow remained in the DP980 welded joints.

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IJARIIE Jape A D, and Ghodake A P. "EXPERIMENTAL INVESTIGATION OF MECHANICAL PROPERTIES OF LASER WELDED DUAL PHASE STEEL JOINTS" International Journal Of Advance Research And Innovative Ideas In Education Volume 6 Issue 4 2020 Page 1615-1625
MLA Jape A D, and Ghodake A P. "EXPERIMENTAL INVESTIGATION OF MECHANICAL PROPERTIES OF LASER WELDED DUAL PHASE STEEL JOINTS." International Journal Of Advance Research And Innovative Ideas In Education 6.4(2020) : 1615-1625.
APA Jape A D, & Ghodake A P. (2020). EXPERIMENTAL INVESTIGATION OF MECHANICAL PROPERTIES OF LASER WELDED DUAL PHASE STEEL JOINTS. International Journal Of Advance Research And Innovative Ideas In Education, 6(4), 1615-1625.
Chicago Jape A D, and Ghodake A P. "EXPERIMENTAL INVESTIGATION OF MECHANICAL PROPERTIES OF LASER WELDED DUAL PHASE STEEL JOINTS." International Journal Of Advance Research And Innovative Ideas In Education 6, no. 4 (2020) : 1615-1625.
Oxford Jape A D, and Ghodake A P. 'EXPERIMENTAL INVESTIGATION OF MECHANICAL PROPERTIES OF LASER WELDED DUAL PHASE STEEL JOINTS', International Journal Of Advance Research And Innovative Ideas In Education, vol. 6, no. 4, 2020, p. 1615-1625. Available from IJARIIE, https://ijariie.com/AdminUploadPdf/EXPERIMENTAL_INVESTIGATION_OF_MECHANICAL_PROPERTIES_OF_LASER_WELDED_DUAL_PHASE_STEEL_JOINTS_ijariie12512.pdf (Accessed : 18 February 2025).
Harvard Jape A D, and Ghodake A P. (2020) 'EXPERIMENTAL INVESTIGATION OF MECHANICAL PROPERTIES OF LASER WELDED DUAL PHASE STEEL JOINTS', International Journal Of Advance Research And Innovative Ideas In Education, 6(4), pp. 1615-1625IJARIIE [Online]. Available at: https://ijariie.com/AdminUploadPdf/EXPERIMENTAL_INVESTIGATION_OF_MECHANICAL_PROPERTIES_OF_LASER_WELDED_DUAL_PHASE_STEEL_JOINTS_ijariie12512.pdf (Accessed : 18 February 2025)
IEEE Jape A D, and Ghodake A P, "EXPERIMENTAL INVESTIGATION OF MECHANICAL PROPERTIES OF LASER WELDED DUAL PHASE STEEL JOINTS," International Journal Of Advance Research And Innovative Ideas In Education, vol. 6, no. 4, pp. 1615-1625, Jul-Aug 2020. [Online]. Available: https://ijariie.com/AdminUploadPdf/EXPERIMENTAL_INVESTIGATION_OF_MECHANICAL_PROPERTIES_OF_LASER_WELDED_DUAL_PHASE_STEEL_JOINTS_ijariie12512.pdf [Accessed : 18 February 2025].
Turabian Jape A D, and Ghodake A P. "EXPERIMENTAL INVESTIGATION OF MECHANICAL PROPERTIES OF LASER WELDED DUAL PHASE STEEL JOINTS." International Journal Of Advance Research And Innovative Ideas In Education [Online]. volume 6 number 4 (18 February 2025).
Vancouver Jape A D, and Ghodake A P. EXPERIMENTAL INVESTIGATION OF MECHANICAL PROPERTIES OF LASER WELDED DUAL PHASE STEEL JOINTS. International Journal Of Advance Research And Innovative Ideas In Education [Internet]. 2020 [Cited : 18 February 2025]; 6(4) : 1615-1625. Available from: https://ijariie.com/AdminUploadPdf/EXPERIMENTAL_INVESTIGATION_OF_MECHANICAL_PROPERTIES_OF_LASER_WELDED_DUAL_PHASE_STEEL_JOINTS_ijariie12512.pdf
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