Force Prediction for Correction of Robot Tool Path in Single Point Incremental Forming

Gulati

J Braz. Soc. Mech. Sci. Eng.

et al. 2019

Incremental sheet forming (ISF) significantly exempts use of expensive dies and reduces tooling cost for manufacturing complex parts in the field of sheet metal forming which makes it suitable for manufacturing prototypes and low volume production as compared to other traditional sheet metal forming processes. ISF also finds suitability for producing components of old machinery, which are otherwise very difficult to form due to the unavailability of forming dies. Moreover, the incremental nature of the process and local deformation of the sheet ensures higher formability and lower required forming force. To take advantages of lower required forming force, it is important to minimize and estimate forming force through the manipulation of the parameters for the safe utilization of hardware. In this review article, a literature survey was carried out quantitatively to study different aspects of ISF, especially to show different process parameters and techniques that affect the forming forces significantly. The current state of the art of the ISF process has been discussed with detailed analysis of process capabilities and limitations in terms of forming forces. Influences of different process parameters and forming techniques have also been studied on forming forces. Some parameters have shown their significance to control the forming force in order to preserve forming machinery. A lack of focus was found on effects of some important forming process parameters and methods, which could have been crucial for safe utilization of forming hardware. A number of guidelines have been recommended for future research work. Appropriate guidelines have also been suggested regarding the relationship between process parameters and forming forces developed during the process in order to ensure the applicability of the ISF process on the industrial scale.

Section: Forming Machinery and Forming Forcementioning

confidence: 99%

Section: Forming Machinery and Forming Forcementioning

confidence: 99%

Section: Influence Of Sheet Thicknessmentioning

confidence: 99%

See 1 more Smart Citation

Forming force in incremental sheet forming: a comparative analysis of the state of the art

Gulati

J Braz. Soc. Mech. Sci. Eng.

et al. 2019

“…The limitation of lower stiffness and accuracy for robotic structures can be eliminated by parallel robotic structures. Also, the industrial robots proved to be effective in forming a part with the same standard parameters, because require lower values of the forming forces, compared to CNC milling machines [17].…”

Section: Fig 1 Spif Process Principlementioning

confidence: 99%

Incremental forming using KUKA KR210-2 industrial robot - research regarding design rules and process modelling

2021

Incremental sheet forming (ISF) process show a great potential in the manufacturing of small series production or prototype development parts. One of the sheet metal forming process, where the contact between punch and metal sheet is in a single point, is known as single point incremental forming (SPIF). The part is manufacture with a simple tool, known as punch, that performs a series of combined movements on the vertically and horizontally directions. The paper introduces a study regarding the design rules and process modelling of this unconventional process, by means of a KUKA KR210-2 industrial robot as technological equipment able to control the correlated movement of the punch. Supplementary, the design of the experimental layout, the process simulations and the singularity problems are considered.

“…Knowing the values of the maximum forces that can occur during this process help researchers to prevent material degradation and at the same time to choose the suitable equipment that can perform the incremental deformation process on the material used. Furthermore, according to a study done in the paper [6], force prediction helps correcting the trajectories made by the punch so that the final shape and precision of the desired piece will be improved, which is extremely important for the cranial implants.…”

Section: Force and Thickness Prediction With Finite Element Analysismentioning

confidence: 99%

Force and thickness prediction with FEA of the cranial implants manufactured through SPIF

et al. 2019

Single point incremental forming is a process which is primarily used for prototyping, small series production and unique parts. This procedure shows a high potential in the development of complex shape parts where the time of the execution does not play an important role. Among the applications of this process are the execution of various medical prostheses, such as: knee prostheses and cranial implants. The aim of this paper is to determine the forces which take place during the manufacture process of an cranial implant, as well as the thinning of the material through the help of finite element analysis. After the numerical simulation, from the results obtained it is possible to observe the behaviour of the material at different forces which appear during the deformation process. In addition, in this paper will be presented considerations about the thinning of the material used for the cranial implant.