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Article Details

  • Article Code : FIRAT-AKADEMI-9234-5654
  • Article Type : Araştırma Makalesi
  • Publication Number : 2A0196
  • Page Number : 1-15
  • Doi : 10.12739/NWSA.2024.19.1.2A0196
  • Abstract Reading : 96
  • Download : 23
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Issue Details

  • Year : 2024
  • Volume : 19
  • Issue : 1
  • Number of Articles Published : 1
  • Published Date : 1.01.2024

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Technological Applied Sciences

Serial Number : 2A
ISSN No. : 1308-7223
Release Interval (in a Year) : 4 Issues

EFFECT OF TOOL ROTATIONAL SPEED IN FRICTION STIR LAP WELDING OF 7075-T651 Al ALLOY TO AISI 304 STAINLESS STEEL

Ömer Ekinci1 , ANIL İMAK2

7075-T651 Al alloy was successfully lap-joined to AISI 304 stainless steel by friction stir lap welding (FSLW) employing four different tool rotational speeds (388, 535, 720, and 980 rpm). Cross-sectional areas, tensile shear strength, and microhardness of the joints were investigated. When the rotational speed was increased, the hook size formed on the advancing sides of the joint increased, which caused the tensile shear strength of the joint to decrease. The joint made at 388 rpm had a tensile shear load of 9442 N while at 980 rpm possessed 4176 N. All the joints fractured from the top 7075-T651 base sheet as a tensile mode on the advancing side. Therefore, the joined areas are stronger. At low rotation speed, the joint broke vertically from the HAZ of the 7075-T651 sheet. Otherwise, it broke from the region next to the hook and along the hook direction. Intermetallic compounds caused hardness to increase.

Keywords
Friction Stir Lap Welding, 7075-T651 Al Alloy, AISI 304 Stainless Steel, Tool Rotation Speed, Mechanical Properties,

Details
   

Authors

Ömer Ekinci (1)

sivas bilim ve teknoloji üniversitesi
omerekinci@sivas.edu.tr | 0000-0002-0179-6456

ANIL İMAK (2) (Corresponding Author)

Bingöl Üniversitesi
aimak@bingol.edu.tr | 0000-0001-6091-1584

Supporting Institution

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Project Number

:

Thanks

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References
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