Processing and tooling considerations in joining by forming technologies; part A—mechanical joining

Salamati, Masoud; Soltanpour, Mahdi; Fazli, Ali; Zajkani, Asghar

doi:10.1007/s00170-018-2823-y

Cited by 39 publications

(16 citation statements)

References 177 publications

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“…Based on this technology, hole-clinching [7][8][9], shear-clinching [10][11][12][13][14][15][16], friction-stir clinching [17][18][19][20][21], clinching-welding technology [22][23][24], and clinch-bond composite technology [25,26] have been developed and applied. The materials have been extended from carbon steel and aluminum alloy to new types of refractory materials such as high-strength steel [27][28][29][30][31][32][33], titanium alloy, and magnesium alloy, which present special advantages in the connection between a metal and a non-metal (carbon fiber and polymer [34][35][36][37][38][39][40][41][42][43][44][45][46]). The technology of connecting the double layers of the same or different materials has become mature, and the research on three layers and above is making progress.…”

Section: They Installed Industrial Robots With Clinching Devices Tomentioning

confidence: 99%

The State of the Art of Finite Element Analysis in Mechanical Clinching

Zhang

Peng

et al. 2021

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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Clinching technology is a mechanical connection technology that is applied to connect metal or non-metal sheet materials. It is widely used in different applications, such as automobile, aircraft, household appliances and other industries. In order to reduce weight, save energy, reduce fuel consumption, reduce pollution and curb global warming, lightweight structures with clinched joint are increasingly used in transportation. The finite element technology is popularized in engineering, so that it can get similar results with the test after investing less time, manpower, energy and material resources, which is conducive to the prediction and smooth progress of the test. A review of the finite element analysis of clinching technology is provided in the present paper. The article's work also discusses the strength of the clinched joint, the factors influencing the clinched joint's strength, the failure mechanism of the clinched joint, etc. Furthermore, the novel technologies of clinching as well as the finite element models and methods used in clinching, are introduced. The present paper's main objective was to review the recent developments in the finite element analysis of clinching and provide a basis for further investigation in this area of research.

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Section: They Installed Industrial Robots With Clinching Devices Tomentioning

confidence: 99%

The State of the Art of Finite Element Analysis in Mechanical Clinching

Zhang

Peng

et al. 2021

Int. J. of Precis. Eng. and Manuf.-Green Tech.

View full text Add to dashboard Cite

show abstract

“…This indicates a reduction in the force-closure component associated with the lower torsional torque. When the more thermally sensitive aluminum material is arranged on the punch side, the maximum deformation occurring in the neck area leads to a reduced the recrystallization temperature [15]. During precipitation hardening, the expansion of aluminum is restrained by the die side steel due to the lower thermal expansion coefficient of steel.…”

Section: Mechanical Testmentioning

confidence: 99%

“…According to the state of the art, the force-closure component has not yet been taken into account for the design. Salamati summarized in [15] that, at clinched joints, the form-closure component is utilized but the force closure component is only partially utilized. Therefore, if it is possible to quantify these components, an improvement of the joint properties can be achieved depending on the type of loading.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Production Process on the Binding Mechanism of Clinched Aluminum Steel Mixed Compounds

Kalich

Füssel

2021

JMMP

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The multi-material design and the adaptability of a modern process chain require joining connections with specifically adjustable mechanical, thermal, chemical, or electrical properties. Previous considerations primarily focused on the mechanical properties. The multitude of possible combinations of requirements, materials, and component- and joining-geometry makes an empirical determination of these joining properties for the clinching process impossible. Based on the established and empirical procedure, there is currently no model that takes into account all questions of joinability—i.e., the materials (suitability for joining), design (security of joining), and production (joining possibility)—that allows a calculation of the properties that can be achieved. It is therefore necessary to describe the physical properties of the joint as a function of the three binding mechanisms—form closure, force closure, and material closure—in relation to the application. This approach illustrates the relationships along the causal chain “joint requirement-binding mechanism-joining parameters” and improves the adaptability of the mechanical joining technology. Geometrical properties of clinch connections of the combination of aluminum and steel are compared in a metallographic cross-section. The mechanical stress state of the rotationally symmetrical clinch points is qualified with a torsion test and by measuring the electrical resistance in the base material, in the clinch joint, and during the production cycle (after clinching, before precipitation hardening and after precipitation hardening).

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“…Several studies have shown that using interference fit fasteners increases the fatigue life of structures. 4…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have shown that using interference fit fasteners increases the fatigue life of structures. 4 Zhang et al 5 researched the design of interference fits using finite element method. Gear-wheel interference fit studies exposed the traditional design method as having limitations.…”

Section: Introductionmentioning

confidence: 99%

Investigation of insert-hole interference fit influence on downhole drilling bit failure

Saeedi

Sadeghi

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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Down-the-hole drilling is a reliable method for drilling in medium-to-hard geological structures. The insert-hole fitting interference value emerges as one of the most important factors of down-the-hole drilling bit life. In this study, fatigue tests were conducted using a tungsten carbide pin press-fitted into a hole in the specimens of DIN 1.6580 steel (which is used for manufacturing the bit body) to quantify the effect of interference value on the bit body failure. Then, the process of bit-rock collision was simulated using three-dimensional finite element method taking into account the residual stresses in the insert and bit body to determine the optimal interference value. Simulations were performed considering the rotary motion of the bit in addition to impact for a single-insert as well as a commercial 3.5 inch bit. Results showed that the interference value influences fatigue life significantly. Also, the velocity and angle of impact have considerable influence on body stresses. Results of this study can greatly assist the design of insert-hole manufacturing tolerances in down-the-hole bits.

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Processing and tooling considerations in joining by forming technologies; part A—mechanical joining

Cited by 39 publications

References 177 publications

The State of the Art of Finite Element Analysis in Mechanical Clinching

The State of the Art of Finite Element Analysis in Mechanical Clinching

Influence of the Production Process on the Binding Mechanism of Clinched Aluminum Steel Mixed Compounds

Investigation of insert-hole interference fit influence on downhole drilling bit failure

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