Flexibility improvement in two-point incremental forming by implementing multi-point die

Nourmohammadi, Amir Ali; Elyasi, Majid; Mirnia, Mohammad Javad

doi:10.1007/s00170-019-03307-y

Cited by 14 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of a rubber die for the TPIF process is described by [10]. In this publication, the rubber material is used as a geometry-dependent positive die to support a multi-point die system.…”

Section: Incremental Sheet Formingmentioning

confidence: 99%

Adjusting residual stresses by flexible stress superposition in incremental sheet metal forming

2021

View full text Add to dashboard Cite

Process-induced residual stresses significantly influence the mechanical properties of a formed component. A polymer pad is used as a flexible die in two-point incremental forming to induce compressive residual stresses in the component during the forming process. Experimental and numerical results illustrate the influence of compressive stress superposition on the component properties. It is shown that the active support, using a geometry-independent polyurethane die, causes beneficial compressive residual stresses on the tool side compared to the tensile residual stresses induced by the single-point incremental forming process without such a supporting die.

show abstract

Section: Incremental Sheet Formingmentioning

confidence: 99%

Adjusting residual stresses by flexible stress superposition in incremental sheet metal forming

2021

View full text Add to dashboard Cite

show abstract

“…TPIF with partial die involves the utilisation of a partial die on one side of the sheet and a moving forming tool on the opposite side, [17][18][19]. On the other hand, two-point incremental forming with full die entails the application of a complete die on one side of the sheet, while the forming tool rotates on the other side, [20][21][22]. A comprehensive understanding of the process factors is essential for effectively controlling the incremental forming process.…”

Section: Introductionmentioning

confidence: 99%

Influence of Technological Parameters on Machining Accuracy in Incremental Forming

Coman,

Mazurchevici,

Carausu

et al. 2023

IJMMT

View full text Add to dashboard Cite

The practise of single-point incremental forming (SPIF) is an advanced flexible manufacturing process initiated during the early 2000s, and since then, extensive research has been conducted in this area. Sheets can be formed incrementally, which not only reduces the amount of energy needed and raw materials, but also allows for multiple products types to be made using the same set of resources. Investigations existed have helped provide a thorough understanding of the macro SPIF deformation mechanism. In the present paper the following aspects have been highlighted: the execution accuracy of the incrementally formed part; determining the part surface roughness; ANOVA analysis of the factors influence on precision and surface roughness. The observed deformations in the shape of the part, can be attributed to the kinematics of the forming process. These deviations are evident in the curvature radius of the part side wall, the presence of a radius of connection between the wall and the bottom of the part, and the dimensional variations indicated by the forming depth. With regards to the surface smoothness, it was noticed that the TiN coated tool yielded the most favourable roughness outcomes. Key words: SPIF, Al 3003 sheet, ANOVA analysis, influence of tehnological parameters, TiN-coated tool.

show abstract

“…-Single-point incremental forming-one shaping or deforming tool passes on a sheet through a series of tiny progressive deformations until the desired shape is obtained [1][2][3][4][5][6]; -Two-point incremental forming-two forming tools are used: one deforms the sheet into the appropriate geometry, while the other one supports the sheet from the rear [7][8][9]; -Multi-point incremental forming (flexible 3D manufacturing process)-used for big sheets and has two opposed hard dice (lower and upper) with systems consisting of multiple punches with the highly precise movements that are necessary to obtain the desired shape being carried out with linear actuators [10][11][12]; -Single-point incremental forming with hydraulic fluid-the forming tool is on one side, and the hydraulic fluid pumped to a high pressure is on the opposite side [13][14][15]; -Two-point incremental forming with partial die-the sheet is formed using a partial die on one side and a moving forming tool on the other [16][17][18]; -Two-point incremental forming with full die-a complete die is applied to one side of the sheet, while the forming tool rotates on the other side [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Incremental Sheet Forming of Aluminum Alloy

Coman,

Mazurchevici,

Carausu

et al. 2023

Materials

View full text Add to dashboard Cite

Recent developments in incremental sheet forming have resulted in the creation of novel manufacturing processes that are highly adaptable and could bring significant economic benefits for advanced technologies and low-volume production. In this manuscript, the following variables were examined: the variation in the deformation forces for a part with a pyramidal trunk shape; the variation in the deformations and thinning of the Al 3003 material during the incremental forming process; and the variation in the accuracy of the incrementally formed part and the quality of the surfaces (surface roughness). The components of the forces in the incremental forming have increasing values from the beginning of the process to the maximum value due to the hardening process. The TiN-coated tool ensures lower values of the forming components. Due to the kinematics of the forming process, deviations, especially in shape, from the part in the drawing are observed, which are shown by the radius of curvature of the side wall of the part, the appearance of a radius of connection between the wall and the bottom of the part, as well as dimensional deviations that are expressed by the variation in the forming depth. Concerning the smoothness of the surfaces, it was observed that the best roughness results were obtained in the case of the TiN-coated tool.

show abstract

Flexibility improvement in two-point incremental forming by implementing multi-point die

Cited by 14 publications

References 20 publications

Adjusting residual stresses by flexible stress superposition in incremental sheet metal forming

Adjusting residual stresses by flexible stress superposition in incremental sheet metal forming

Influence of Technological Parameters on Machining Accuracy in Incremental Forming

Analysis of Incremental Sheet Forming of Aluminum Alloy

Contact Info

Product

Resources

About