Microstructures and failure mechanisms of spot friction welds in lap-shear specimens of aluminum 5754 sheets

S. G. Arul; T. Pan; P. C. Lin; J. Pan; Z. Feng; M. L. Santella

doi:10.4271/2005-01-1256

Microstructures and failure mechanisms of spot friction welds in lap-shear specimens of aluminum 5754 sheets

S. G. Arul, T. Pan, P. C. Lin, J. Pan, Z. Feng, M. L. Santella

Materials Joining

Research output: Contribution to journal › Conference article › peer-review

16 Scopus citations

Abstract

Microstructures and failure mechanisms of spot friction welds (SFW) in aluminum 5754 lap-shear specimens were investigated. In order to study the effect of tool geometry on the joint strength of spot friction welds, a concave tool and a flat tool were used. In order to understand the effect of tool penetration depth on the joint strength, spot friction welds were prepared with two different penetration depths for each tool. The results indicated that the concave tool produced slightly higher joint strength than the flat tool. The joint strength did not change for the two depths for the flat tool whereas the joint strength slightly increases as the penetration depth increases for the concave tool. The experimental results show that the failure mechanism is necking and shearing for the spot friction welds made by both tools. The failure was initiated and fractured through the upper sheet under the shoulder indentation near the crack tip.

Original language	English
Journal	SAE Technical Papers
DOIs	https://doi.org/10.4271/2005-01-1256
State	Published - 2005
Event	2005 SAE World Congress - Detroit, MI, United States Duration: Apr 11 2005 → Apr 14 2005

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title = "Microstructures and failure mechanisms of spot friction welds in lap-shear specimens of aluminum 5754 sheets",

abstract = "Microstructures and failure mechanisms of spot friction welds (SFW) in aluminum 5754 lap-shear specimens were investigated. In order to study the effect of tool geometry on the joint strength of spot friction welds, a concave tool and a flat tool were used. In order to understand the effect of tool penetration depth on the joint strength, spot friction welds were prepared with two different penetration depths for each tool. The results indicated that the concave tool produced slightly higher joint strength than the flat tool. The joint strength did not change for the two depths for the flat tool whereas the joint strength slightly increases as the penetration depth increases for the concave tool. The experimental results show that the failure mechanism is necking and shearing for the spot friction welds made by both tools. The failure was initiated and fractured through the upper sheet under the shoulder indentation near the crack tip.",

author = "Arul, {S. G.} and T. Pan and Lin, {P. C.} and J. Pan and Z. Feng and Santella, {M. L.}",

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language = "English",

journal = "SAE Technical Papers",

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note = "2005 SAE World Congress ; Conference date: 11-04-2005 Through 14-04-2005",

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TY - JOUR

T1 - Microstructures and failure mechanisms of spot friction welds in lap-shear specimens of aluminum 5754 sheets

AU - Arul, S. G.

AU - Pan, T.

AU - Lin, P. C.

AU - Pan, J.

AU - Feng, Z.

AU - Santella, M. L.

PY - 2005

Y1 - 2005

N2 - Microstructures and failure mechanisms of spot friction welds (SFW) in aluminum 5754 lap-shear specimens were investigated. In order to study the effect of tool geometry on the joint strength of spot friction welds, a concave tool and a flat tool were used. In order to understand the effect of tool penetration depth on the joint strength, spot friction welds were prepared with two different penetration depths for each tool. The results indicated that the concave tool produced slightly higher joint strength than the flat tool. The joint strength did not change for the two depths for the flat tool whereas the joint strength slightly increases as the penetration depth increases for the concave tool. The experimental results show that the failure mechanism is necking and shearing for the spot friction welds made by both tools. The failure was initiated and fractured through the upper sheet under the shoulder indentation near the crack tip.

AB - Microstructures and failure mechanisms of spot friction welds (SFW) in aluminum 5754 lap-shear specimens were investigated. In order to study the effect of tool geometry on the joint strength of spot friction welds, a concave tool and a flat tool were used. In order to understand the effect of tool penetration depth on the joint strength, spot friction welds were prepared with two different penetration depths for each tool. The results indicated that the concave tool produced slightly higher joint strength than the flat tool. The joint strength did not change for the two depths for the flat tool whereas the joint strength slightly increases as the penetration depth increases for the concave tool. The experimental results show that the failure mechanism is necking and shearing for the spot friction welds made by both tools. The failure was initiated and fractured through the upper sheet under the shoulder indentation near the crack tip.

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U2 - 10.4271/2005-01-1256

DO - 10.4271/2005-01-1256

M3 - Conference article

AN - SCOPUS:85072481978

SN - 0148-7191

JO - SAE Technical Papers

JF - SAE Technical Papers

T2 - 2005 SAE World Congress

Y2 - 11 April 2005 through 14 April 2005

ER -

Microstructures and failure mechanisms of spot friction welds in lap-shear specimens of aluminum 5754 sheets

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