Effect of zinc coatings on joint properties and interfacial reactions in aluminum to steel ultrasonic spot welding

Farid Haddadi; D Strong; PB Prangnell

doi:10.1007/s11837-012-0265-9

Effect of zinc coatings on joint properties and interfacial reactions in aluminum to steel ultrasonic spot welding

Farid Haddadi, D Strong, PB Prangnell

Research output: Contribution to journal › Article › peer-review

Abstract

Dissimilar joining of aluminum to steel sheet in multimaterial automotive structures is an important potential application of ultrasonic spot welding (USW). Here, the weldability of different zinc-coated steels with aluminum is discussed, using a 2.5-kW USW welder. Results show that soft hot-dipped zinc (DX56-Z)-coated steel results in better weld performance than hard (galv-annealed) zinc coatings (DX53-ZF). For Al to hard galv-annealed-coated steel welds, lap shear strengths reached a maximum of ~80% of the strength of an Al-Al joint after a 1.0 s welding time. In comparison, welds between Al6111-T4 and hot dipped soft zinc-coated steel took longer to achieve the same maximum strength, but nearly matched the Al-Al joint properties. The reasons for these different behaviors are discussed in terms of the interfacial reactions between the weld members

Original language	English
Pages (from-to)	407-413
Number of pages	6
Journal	Journal of Materials
Volume	64
Issue number	3
DOIs	https://doi.org/10.1007/s11837-012-0265-9
Publication status	Published - 1 Mar 2012

Keywords

Dissimilar welding
galvanised steel
ultrasonic welding

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10.1007/s11837-012-0265-9

Light Alloys towards environmentally sustainable transport: 2nd generation solutions for Advanced Metallic Systems ( LATEST 2 )
Thompson, G. (PI), Bate, P. (CoI), Prangnell, P. (CoI), Preuss, M. (CoI), Quinta Da Fonseca, J. (CoI), Robson, J. (CoI), Skeldon, P. (CoI) & Zhou, X. (CoI)
1/02/10 → 31/07/15
Project: Research

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title = "Effect of zinc coatings on joint properties and interfacial reactions in aluminum to steel ultrasonic spot welding",

abstract = "Dissimilar joining of aluminum to steel sheet in multimaterial automotive structures is an important potential application of ultrasonic spot welding (USW). Here, the weldability of different zinc-coated steels with aluminum is discussed, using a 2.5-kW USW welder. Results show that soft hot-dipped zinc (DX56-Z)-coated steel results in better weld performance than hard (galv-annealed) zinc coatings (DX53-ZF). For Al to hard galv-annealed-coated steel welds, lap shear strengths reached a maximum of ~80% of the strength of an Al-Al joint after a 1.0 s welding time. In comparison, welds between Al6111-T4 and hot dipped soft zinc-coated steel took longer to achieve the same maximum strength, but nearly matched the Al-Al joint properties. The reasons for these different behaviors are discussed in terms of the interfacial reactions between the weld members",

keywords = "Dissimilar welding, galvanised steel, ultrasonic welding",

author = "Farid Haddadi and D Strong and PB Prangnell",

year = "2012",

month = mar,

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doi = "10.1007/s11837-012-0265-9",

language = "English",

volume = "64",

pages = "407--413",

journal = "Journal of Materials",

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TY - JOUR

T1 - Effect of zinc coatings on joint properties and interfacial reactions in aluminum to steel ultrasonic spot welding

AU - Haddadi, Farid

AU - Strong, D

AU - Prangnell, PB

PY - 2012/3/1

Y1 - 2012/3/1

N2 - Dissimilar joining of aluminum to steel sheet in multimaterial automotive structures is an important potential application of ultrasonic spot welding (USW). Here, the weldability of different zinc-coated steels with aluminum is discussed, using a 2.5-kW USW welder. Results show that soft hot-dipped zinc (DX56-Z)-coated steel results in better weld performance than hard (galv-annealed) zinc coatings (DX53-ZF). For Al to hard galv-annealed-coated steel welds, lap shear strengths reached a maximum of ~80% of the strength of an Al-Al joint after a 1.0 s welding time. In comparison, welds between Al6111-T4 and hot dipped soft zinc-coated steel took longer to achieve the same maximum strength, but nearly matched the Al-Al joint properties. The reasons for these different behaviors are discussed in terms of the interfacial reactions between the weld members

AB - Dissimilar joining of aluminum to steel sheet in multimaterial automotive structures is an important potential application of ultrasonic spot welding (USW). Here, the weldability of different zinc-coated steels with aluminum is discussed, using a 2.5-kW USW welder. Results show that soft hot-dipped zinc (DX56-Z)-coated steel results in better weld performance than hard (galv-annealed) zinc coatings (DX53-ZF). For Al to hard galv-annealed-coated steel welds, lap shear strengths reached a maximum of ~80% of the strength of an Al-Al joint after a 1.0 s welding time. In comparison, welds between Al6111-T4 and hot dipped soft zinc-coated steel took longer to achieve the same maximum strength, but nearly matched the Al-Al joint properties. The reasons for these different behaviors are discussed in terms of the interfacial reactions between the weld members

KW - Dissimilar welding

KW - galvanised steel

KW - ultrasonic welding

U2 - 10.1007/s11837-012-0265-9

DO - 10.1007/s11837-012-0265-9

M3 - Article

SN - 2314-4866

VL - 64

SP - 407

EP - 413

JO - Journal of Materials

JF - Journal of Materials

IS - 3

ER -

Effect of zinc coatings on joint properties and interfacial reactions in aluminum to steel ultrasonic spot welding

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Light Alloys towards environmentally sustainable transport: 2nd generation solutions for Advanced Metallic Systems ( LATEST 2 )

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