Related Experiment Video
Updated: Jan 3, 2026
11:05
Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes
Published on: December 13, 2016
12.6K
Deformation-Assisted Joining of Sheets to Tubes by Annular Sheet Squeezing
Luis M Alves1, Rafael M Afonso1, Frederico L R Silva1
1Instituto de Engenharia Mecânica, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
Materials (Basel, Switzerland)
|November 30, 2019
Summary
A novel room-temperature joining process creates form-fit sheet-to-tube connections using annular squeezing. This sustainable method offers material and energy savings, with optimal parameters balancing joint geometry and pull-out strength.
Area of Science:
- Manufacturing Engineering
- Materials Science
Background:
- Existing sheet-to-tube joining methods often involve direct loading on tubes.
- Current solutions may not be optimal for sustainable manufacturing practices.
Purpose of the Study:
- To introduce and analyze a new deformation-assisted joining process for sheets to tubes.
- To investigate the influence of key process parameters on joint performance.
Main Methods:
- Development of a novel annular squeezing process for mechanical joining.
- Experimental validation and finite element modeling (FEM) of the joining process.
Main Results:
- The new process achieves form-fit joints at room temperature.
- Key parameters include sheet thickness, squeezing depth, and punch recess length.
- Optimal parameters are crucial for balancing interlocking geometry and pull-out strength.
Conclusions:
- The developed process offers a sustainable alternative to traditional joining methods.
- Careful control of process parameters is essential for robust sheet-to-tube connections.
- This technique contributes to eco-friendly manufacturing with potential for material and energy savings.
Related Concept Videos
01:17Steel Fastening Techniques
1.2K
Steel sections can be joined together through various fastening techniques including riveting, bolting, and welding, each suitable for different structural requirements and conditions.
Rivets are cylindrical steel fasteners with a specially designed head. During application, rivets are heated until white-hot and then inserted through pre-drilled holes in the steel sections. A pneumatic hammer is used to shape the exposed end into a second head, securing the sections together.
Bolting is another...
Rivets are cylindrical steel fasteners with a specially designed head. During application, rivets are heated until white-hot and then inserted through pre-drilled holes in the steel sections. A pneumatic hammer is used to shape the exposed end into a second head, securing the sections together.
Bolting is another...
1.2K
01:10Deformation in a Circular Shaft
792
One of the distinctive characteristics of circular shafts is their ability to maintain their cross-sectional integrity under torsion. In other words, each cross-section continues to exist as a flat, unaltered entity, simply rotating like a solid, rigid slab. To understand the distribution of shearing stress within such a shaft, consider a cylindrical section inside this circular shaft. This section has a length of L and a radius of R, with one end fixed. The radius of the cylindrical section is...
792
01:11Deformation of Member under Multiple Loadings
409
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
409
01:24Structural Steel Products
590
Structural steel products are created within a structural mill. The process begins with a beam blank that is reheated and then fed through a series of rollers. These rollers progressively shape the metal into its final form. Adjusting the spacings between the rollers allows for the production of different sections with the same nominal dimensions.
Once shaped, the steel's final form emerges as a continuous length, which is then segmented by a hot saw into manageable pieces. These segments...
Once shaped, the steel's final form emerges as a continuous length, which is then segmented by a hot saw into manageable pieces. These segments...
590
01:20Plastic Deformation in Circular Shafts
409
When materials are subjected to forces that surpass their yield strength, they undergo a process known as plastic deformation. This results in a permanent alteration or strain in their structure. This concept can be specifically applied to circular shafts, where the deformation leads to a change in its shape. The precise evaluation of this plastic deformation requires understanding the stress distribution within the circular shaft, which is achieved by calculating the maximum shearing stress in...
409
01:12Temperature Dependent Deformation
337
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
337