Process development for self-pierce riveting with solid formable rivet of boron steel in multi-material design

Grimm, Thomas; Drossel, Welf‐Guntram

doi:10.1016/j.promfg.2019.02.138

Cited by 9 publications

(3 citation statements)

References 1 publication

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“…The joining of a composite and a metal using a punching rivet and heating to 180 Automotive manufacturers are increasingly using pressed-joining technologies. This group of connecting technologies includes, among others, self-piercing riveting ("SPR") [8][9][10][11], clinching ("CL") [12][13][14][15][16][17], solid self-piercing riveting ("SSPR") [18][19][20][21][22][23], and clinch riveting ("CR") [24][25][26][27][28][29]. Companies see more and more potential for this group of pressed joints.…”

Section: Introductionmentioning

confidence: 99%

Steel Sheet Deformation in Clinch-Riveting Joining Process

Witkowski,

Mucha,

Boda

2024

Metals

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This paper presents the deformation of a joined sheet after the clinch riveting process. The DX51D steel sheet with zinc coating was used. The samples to be joined with clinch riveting technology had a thickness of 1 ± 0.05 mm and 1.5 ± 0.1 mm. The sheet deformation was measured before and after the joining process. The rivet was pressed in the sheets with the same dimension between the rivet axis and three sheet edges: 20, 30, and 40 mm. For fixed segments of the die, from the rivet side close to the rivet, the sheet deformation was greater than that of the area with movable segments. The movement of the die’s sliding element caused more sheet material to flow in the space between the fixed part of the die and movable segments. Hence, the sheet deformation in these places was smaller than for the die’s fixed element—the sheet material was less compressed. For sheet thickness values of 1.5 mm and a width value of 20 mm, the bulk of the sheet was observed. For a sheet width of 20 mm, it was observed that the deformation of the upper and lower sheets in the area of the rivet was greater than for sheet width values of 30 or 40 mm.

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Section: Introductionmentioning

confidence: 99%

Steel Sheet Deformation in Clinch-Riveting Joining Process

Witkowski,

Mucha,

Boda

2024

Metals

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“…Traditional interlock measurements are the only cross-sectional measurement techniques that have been applied to mechanical point joining methods such as SPR, clinching or Friction-SPR [ 6 , 7 , 8 , 9 , 10 , 11 ]. The state of the art tends to focus on using existing metrics to predict joint strength, with some success.…”

Section: Introductionmentioning

confidence: 99%

Investigation into the Effect of Interlock Volume on SPR Strength

et al. 2023

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During the design of automotive structures assembled using Self-Piercing Rivets (SPRs), a rivet and die combination is selected for each joint stack. To conduct extensive physical tensile testing on every joint combination to determine the range of strength achieved by each rivet–die combination, a great deal of lab technician time and substrate material are required. It is much simpler and less material-consuming to select the rivet and die solution by examining the cross sections of joints. However, the current methods of measuring cross sections by measuring the amount of mechanical interlock in a linear X–Y direction, achieved with the flared rivet tail, do not give an accurate prediction of joint strength, because they do not measure the full amount of material that must be defeated to pull the rivet tail out of the bottom sheet. The X–Y linear interlock measurement approach also makes it difficult to rapidly rank joint solutions, as it creates two values for each cross section rather than a single value. This study investigates an innovative new measurement method developed by the authors called Volumelock. The approach measures the volume of material that must be defeated to pull out the rivet. Creating a single measurement value for each rivet–die combination makes it much easier to compare different rivet and die solutions; to identify solutions that work well across a number of different stacks; to aid the grouping of stacks on one setter for low-volume line; and to select the strongest solutions for a high-volume line where only one or two different stacks are made by each setter. The joint stack results in this paper indicate that there is a good predictive relationship between the new Volumelock method and peel strength, measured by physical cross-tension testing. In this study, the Volumelock approach predicted the peel strength within a 5% error margin.

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“…In cases of joined components made of the same material (e.g., from steel), the most often used components are joined together using electrofusion welding, arc welding or laser welding [ 21 , 22 , 23 , 24 ]. In cases of the components made of various types of materials (steel–aluminum, steel–composite), different joining methods are used: clinching, self-pierce riveting or bonding [ 25 , 26 ]. All described manufacturing processes belong to very advanced ones and are accomplished on automated, flexible and robotic production lines.…”

Section: Introductionmentioning

confidence: 99%

Design Study for Automatic Production Line of a Sub-Assemblies of New Generation Car Body Structures Compliant with the “Industry 4.0” Concept

Wróbel

Sidzina

2021

Sensors

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A design study of automatic line-to-production of a new generation of car body structures compliant with the Industry 4.0 concept is described in this paper. The line is based on the hot-stamping technology of components of a car body structure from 22MnB5 steel sheets. Additional modules of the designed production line are: laser-trimming station, station to completion (kitting-up), and spot-welding station of the subassemblies. Technical requirements to be complied with by such line and scheme of exchange of information between modules of the line were defined. The conclusions were formulated.

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Process development for self-pierce riveting with solid formable rivet of boron steel in multi-material design

Cited by 9 publications

References 1 publication

Steel Sheet Deformation in Clinch-Riveting Joining Process

Steel Sheet Deformation in Clinch-Riveting Joining Process

Investigation into the Effect of Interlock Volume on SPR Strength

Design Study for Automatic Production Line of a Sub-Assemblies of New Generation Car Body Structures Compliant with the “Industry 4.0” Concept

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