Effect of heat input on joint performance in 6061 aluminum alloy friction welding.

Sawai, Takeshi; Ogawa, Kōichi; Yamaguchi, H.; Ochi, Hiizu; Yamamoto, Yoshiaki; Suga, Yasuo

doi:10.2464/jilm.50.505

Cited by 18 publications

(8 citation statements)

References 3 publications

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“…[2][3][4] In the present study, the relationship between joint strength and deformation heat input at the upset stage was examined. The cycle of the brake-type friction welding process is shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…The heat input consists of friction heat input (by friction) 1) and deformation heat input (by deformation of the weld material). 2,3) In similar friction-welded joints of 5056 aluminum alloy, 2) 6061 aluminum alloy, 3) and SUS304 stainless steel, 4) the authors previously examined the relationship between joint strength (tensile strength and fatigue strength) and heat input (friction heat input, deformation heat input and total heat input); each relationship was evaluated at the friction stage, the upset stage and the total stage. The results revealed that the deformation heat input at the upset stage was closely related to joint strength.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Tensile Strength and Fatigue Strength of Commercial Pure Aluminum/Tough Pitch Copper Friction-Welded Joints by Deformation Heat Input

et al. 2008

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The relationship between joint strength and deformation heat input at the upset stage and the relationship between joint strength and upset burn-off length were examined on friction welded joints of 1050 pure aluminum to C1100 tough pitch copper. Joint quality was evaluated from the tensile strength and fatigue strength. It was found that both the deformation heat input at the upset stage and the upset burn-off length correlated well with joint strength. Additionally, when the deformation heat input at the upset stage or upset burn-off length exceeded a certain value, stable tensile strength was obtained. The mixing layer, intermetallic compounds of Al-Cu were interpolated into A1050, formed at the weld interface, and joints having a thick mixing layer fractured at the weld interface. Joint efficiencies of sound joints for the fatigue limit of the A1050 base metal were 88-100%. Judging from the fatigue limit, sound joints could be produced when either the deformation heat input at the upset stage or the upset burn-off length exceeded a certain value.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of Tensile Strength and Fatigue Strength of Commercial Pure Aluminum/Tough Pitch Copper Friction-Welded Joints by Deformation Heat Input

et al. 2008

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“…Recently, the authors began research to examine the evaluation of joint strength by analyzing heat input [3]. In friction welding, the state of the friction surface varies with welding time [4], and the deformation of the friction surface ceases almost simultaneously when rotation of workpiece stops.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Tensile Strength and Fatigue Strength of 6061 Aluminum Alloy Friction Welded Joint

Ochi

Sawai

Yamamoto

et al. 2002

Journal of the Society of Materials Science, Japan

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Friction welding of 6061 aluminum alloy was carried out in order to examine the relationship among deformation heat input at the upset stage, upset burn-off length and joint performance. The joint performance was evaluated by tensile testing and fatigue testing. Stabilized tensile strength was obtained when the deformation heat input at the upset stage and the upset burn-off length exceeded 200J/s and 4mm, respectively. Weld condition at the weld interface and the width of softened area affected fatigue strength more than tensile strength. That is, when the weld condition at the weld interface is good and the softened area is wide, fatigue strength increases because the stress disperses in the softened area. On the other hand, when the weld condition at the weld interface is good and the softened area is narrow, and when the weld condition at the weld interface is somewhat poor in spite of the wide softened area, fatigue strength decreases because the stress concentrates at the weld interface. The fatigue limit obtained by the fatigue testing reveals that, when the deformation heat input at the upset stage and the upset burn-off length exceed a certain value, sound joints can be produced.

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“…deformation heat input during friction stage q id (J/s)11 Relationship between tensile strength and unit deformation heat input during friction stage on upset pressure 0 MPa.…”

mentioning

confidence: 99%

Evaluation of joint performance of 5056 aluminium alloy friction welded joints by heat input. On the tensile strength of welded joints (1st report)

Sawai

Ogawa

Ochi

et al. 2000

Welding International

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Effect of heat input on joint performance in 6061 aluminum alloy friction welding.

Cited by 18 publications

References 3 publications

Evaluation of Tensile Strength and Fatigue Strength of Commercial Pure Aluminum/Tough Pitch Copper Friction-Welded Joints by Deformation Heat Input

Evaluation of Tensile Strength and Fatigue Strength of Commercial Pure Aluminum/Tough Pitch Copper Friction-Welded Joints by Deformation Heat Input

Evaluation of Tensile Strength and Fatigue Strength of 6061 Aluminum Alloy Friction Welded Joint

Evaluation of joint performance of 5056 aluminium alloy friction welded joints by heat input. On the tensile strength of welded joints (1st report)

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