Robot-Assisted Cold and Warm Incremental Sheet Forming of Aluminum Alloy 6061: A Comparative Study

Incremental sheet forming (ISF) requires no or partial dies for sheet metal fabrication and is widely used for small batch production. In this process, necking is either suppressed or delayed due to the localized nature of tool–sheet contact; hence, more strains than conventional stamping and deep d...

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Main Authors: Ravi Prakash Singh, Santosh Kumar, Sarang Pande, Sachin Salunkhe, Adham E. Ragab, Pankaj Kumar Singh, Md Meraz, J. Paulo Davim
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/13/3/568
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author Ravi Prakash Singh
Santosh Kumar
Sarang Pande
Sachin Salunkhe
Adham E. Ragab
Pankaj Kumar Singh
Md Meraz
J. Paulo Davim
author_facet Ravi Prakash Singh
Santosh Kumar
Sarang Pande
Sachin Salunkhe
Adham E. Ragab
Pankaj Kumar Singh
Md Meraz
J. Paulo Davim
author_sort Ravi Prakash Singh
collection DOAJ
description Incremental sheet forming (ISF) requires no or partial dies for sheet metal fabrication and is widely used for small batch production. In this process, necking is either suppressed or delayed due to the localized nature of tool–sheet contact; hence, more strains than conventional stamping and deep drawing are obtained. In the present study, two variations of ISF, namely cold ISF (CISF) and warm ISF (WISF), are compared. First, FEA modeling is carried out on ABAQUS to reach the forming forces involved in the process. It is found that WISF reduces the forming forces. The temperature for WISF is maintained at 180 °C. Following the simulation analysis, tests are carried out. The forming force in WISF is 55.77% less than that in CISF. The part fabricated by CISF is slightly more substantial than that by WISF; however, more forming depth can be achieved by WISF. There is a more uniform thickness distribution in the case of CISF than in WISF. However, the surface quality of the CISF product is inferior to that of WISF. It is observed that there is reduced forming force, increased formability, and better strain distribution in WISF compared to CISF. However, post-processing heat treatment and surface polishing of the formed parts is required to restore their mechanical properties.
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spelling doaj.art-5ab6758afbac449b9969dff5d62cbd122023-11-17T12:39:34ZengMDPI AGMetals2075-47012023-03-0113356810.3390/met13030568Robot-Assisted Cold and Warm Incremental Sheet Forming of Aluminum Alloy 6061: A Comparative StudyRavi Prakash Singh0Santosh Kumar1Sarang Pande2Sachin Salunkhe3Adham E. Ragab4Pankaj Kumar Singh5Md Meraz6J. Paulo Davim7Department of Mechanical Engineering, IIT (BHU), Varanasi 221005, IndiaDepartment of Mechanical Engineering, IIT (BHU), Varanasi 221005, IndiaDepartment of Mechanical Engineering, Marwadi University, Rajkot 360003, IndiaDepartment of Mechanical Engineering, Vel-Tech Rangarajan Dr Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600062, IndiaDepartment of Industrial Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi ArabiaDepartment of Mechanical Engineering, IIT (BHU), Varanasi 221005, IndiaDepartment of Mechanical Engineering, IIT (BHU), Varanasi 221005, IndiaDepartment of Mechanical Engineering, Campus Santiago, University of Aveiro, 3810-193 Aveiro, PortugalIncremental sheet forming (ISF) requires no or partial dies for sheet metal fabrication and is widely used for small batch production. In this process, necking is either suppressed or delayed due to the localized nature of tool–sheet contact; hence, more strains than conventional stamping and deep drawing are obtained. In the present study, two variations of ISF, namely cold ISF (CISF) and warm ISF (WISF), are compared. First, FEA modeling is carried out on ABAQUS to reach the forming forces involved in the process. It is found that WISF reduces the forming forces. The temperature for WISF is maintained at 180 °C. Following the simulation analysis, tests are carried out. The forming force in WISF is 55.77% less than that in CISF. The part fabricated by CISF is slightly more substantial than that by WISF; however, more forming depth can be achieved by WISF. There is a more uniform thickness distribution in the case of CISF than in WISF. However, the surface quality of the CISF product is inferior to that of WISF. It is observed that there is reduced forming force, increased formability, and better strain distribution in WISF compared to CISF. However, post-processing heat treatment and surface polishing of the formed parts is required to restore their mechanical properties.https://www.mdpi.com/2075-4701/13/3/568incremental formingwarm formingstraight groove testErichsen cup test
spellingShingle Ravi Prakash Singh
Santosh Kumar
Sarang Pande
Sachin Salunkhe
Adham E. Ragab
Pankaj Kumar Singh
Md Meraz
J. Paulo Davim
Robot-Assisted Cold and Warm Incremental Sheet Forming of Aluminum Alloy 6061: A Comparative Study
Metals
incremental forming
warm forming
straight groove test
Erichsen cup test
title Robot-Assisted Cold and Warm Incremental Sheet Forming of Aluminum Alloy 6061: A Comparative Study
title_full Robot-Assisted Cold and Warm Incremental Sheet Forming of Aluminum Alloy 6061: A Comparative Study
title_fullStr Robot-Assisted Cold and Warm Incremental Sheet Forming of Aluminum Alloy 6061: A Comparative Study
title_full_unstemmed Robot-Assisted Cold and Warm Incremental Sheet Forming of Aluminum Alloy 6061: A Comparative Study
title_short Robot-Assisted Cold and Warm Incremental Sheet Forming of Aluminum Alloy 6061: A Comparative Study
title_sort robot assisted cold and warm incremental sheet forming of aluminum alloy 6061 a comparative study
topic incremental forming
warm forming
straight groove test
Erichsen cup test
url https://www.mdpi.com/2075-4701/13/3/568
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