Joining of high strength steel and aluminium alloy sheets by mechanical clinching with dies for control of metal flow

Abe, Yohei; Mori, Ken-ichiro; Kato, Toru

doi:10.1016/j.jmatprotec.2011.11.015

Cited by 173 publications

(94 citation statements)

References 12 publications

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“…Varis [260] studies the suitability of clinching in joining high strength steels in construction. Abe et al [1] studied the clinch joining of high strength steel and aluminium alloy sheets. It was found that the relatively low ductility of the high strength steel may lead to fracture of the steel sheet.…”

Section: Clinchingmentioning

confidence: 99%

Joining of dissimilar materials

2015

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Section: Clinchingmentioning

confidence: 99%

Joining of dissimilar materials

2015

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“…Quality and strength of mechanical clinched joints are defined by the material properties of the joining partners (Lee, 2010). How to control the joining process of die-sided UHSS with tensile strength at 980 MPa and ductile aluminium by using adapted die-sided toolsets is documented in (Abe et al, 2012). Special solutions for symmetrical round-points were developed to join UHSS with more than 1000 MPa.…”

Section: Challenges For Mechanical Clinching Technologiesmentioning

confidence: 99%

Specimen's Geometry Related Influences on Load-Bearing Capacity of Joining Aluminium and UHSS by Innovative Shear-Clinching

Hörhold¹,

Mûller²,

Merklein³

et al. 2017

JMSR

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Economic conditions as well as comfort and safety-related requirements lead to lightweight design especially in automotive body-in-white production processes. The consequential multi-material mix limits the reliability of conventional thermal joining technologies. Innovative mechanical joining technologies need to be established. Following the lightweight-design requirements, next step for weight-reduction would be the renunciation of additional elements. Clinching technologies support this idea by creating a form-and force-fitting joint, but are limited to the formability of the joining partners. Joining by forming without additional elements even of hot formed ultra-high-strength manganese steels and ductile aluminium can be realised by shear-clinching. A precisely coordinated tool setup initialises a crack in the die-sided material with limited formability without harming the punch-sided ductile aluminium. This paper presents current and detailed investigations of the influences of mechanical loads on strength capacity of multi-material joints using shear-clinching technologies. The results clearly show the promising potential and challenges of this innovative single-step joining technology for multi-material mixes.

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“…700 MPa and a sufficient ductility of at least 8% can be clinched, clinch-bonded, and clinch-riveted with satisfying results regarding load capacity, as many recently published investigations on joining mild and high-strength steels show . With increasing tensile strengths and decreasing ductility, the formation of acceptable neck thicknesses and interlocks becomes more and more difficult (Ref 16,17). The relatively high forming grades, which occur during the clinching process, can lead to local defects in the joint.…”

Section: Extending the Application Range Of Established Mechanical Jomentioning

confidence: 99%

Innovative and Highly Productive Joining Technologies for Multi-Material Lightweight Car Body Structures

Meschut

Janzen

Olfermann

2014

J. of Materi Eng and Perform

277

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Driven by increasing costs for energy and raw material and especially by the European CO 2 -emission laws, automotive industry faces the challenge to develop more lightweight and at the same time still rigid and crash-stable car bodies, that are affordable for large-scale production. The implementation of weightreduced constructions depends not only on the availability of lightweight materials and related forming technologies, but also on cost-efficient and reliable joining technologies suitable for multi-material design. This article discusses the challenges and requirements for these technologies, based on the example of joining aluminium with press-hardened boron steels, what is considered as a very important material combination for affordable future lightweight mobility. Besides a presentation of recent developments for extending the process limits of conventional mechanical joining methods, new promising technologies such as resistance element welding are introduced. In addition, the performance, advantages, and disadvantages of the presented technologies are compared and discussed.

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Joining of high strength steel and aluminium alloy sheets by mechanical clinching with dies for control of metal flow

Cited by 173 publications

References 12 publications

Joining of dissimilar materials

Joining of dissimilar materials

Specimen's Geometry Related Influences on Load-Bearing Capacity of Joining Aluminium and UHSS by Innovative Shear-Clinching

Innovative and Highly Productive Joining Technologies for Multi-Material Lightweight Car Body Structures

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