Hybrid Incremental Forming:
Investigation on Localized Thinning
and Thickness Distribution in Formed
Parts
Rahul Jagtap, Vikas Sisodia, Kiran More, and Shailendra Kumar
Abstract In the present experimental work, hybrid incremental sheet forming
(HISF) process comprising stretch forming followed by single point incremental
sheet forming (SPIF) is developed for forming conical frustum. Experimental investigation is done to find the influence of process parameters on thickness distribution
and localized thinning in the formed parts. Experimental result reveals that stretching
has a substantial effect on localized thinning in formed parts. Small improvement
in the thickness distribution and localized thinning is found in formed parts. Experimental investigation on the influence of preform tool shape is also done to further
improve thickness distribution. It is observed that the geometry of preform tool and
amount of stretching has a great influence on thinning and thickness distribution. It is
found that intermediate preform tool size and small amount of preforming results in
forming conical frustum having uniform thickness distribution. Also, a considerable
reduction in forming time using developed HISF process is observed as compared
to SPIF process alone.
Keywords Hybrid incremental sheet forming · Stretch forming · Single point
incremental forming · Thickness distribution · Localized thinning
R. Jagtap (B)
School of Mechanical Engineering, MIT World Peace University, Pune 411038, India
e-mail: rkjagtap20@gmail.com
V. Sisodia · K. More · S. Kumar
Department of Mechanical Engineering, Sardar Vallabhbhai National Institute of Technology,
Surat, Gujarat 395007, India
e-mail: vikas.singh619@gmail.com
S. Kumar
e-mail: skbudhwar@med.svnit.ac.in
© The Editor(s) (if applicable) and The Author(s), under exclusive license
to Springer Nature Singapore Pte Ltd. 2021
N. Gascoin and E. Balasubramanian (eds.), Innovative Design, Analysis
and Development Practices in Aerospace and Automotive Engineering, Lecture Notes
in Mechanical Engineering, https://doi.org/10.1007/978-981-15-6619-6_16
151
Investigation on Localized Thinning
and Thickness Distribution in Formed
Parts
Rahul Jagtap, Vikas Sisodia, Kiran More, and Shailendra Kumar
Abstract In the present experimental work, hybrid incremental sheet forming
(HISF) process comprising stretch forming followed by single point incremental
sheet forming (SPIF) is developed for forming conical frustum. Experimental investigation is done to find the influence of process parameters on thickness distribution
and localized thinning in the formed parts. Experimental result reveals that stretching
has a substantial effect on localized thinning in formed parts. Small improvement
in the thickness distribution and localized thinning is found in formed parts. Experimental investigation on the influence of preform tool shape is also done to further
improve thickness distribution. It is observed that the geometry of preform tool and
amount of stretching has a great influence on thinning and thickness distribution. It is
found that intermediate preform tool size and small amount of preforming results in
forming conical frustum having uniform thickness distribution. Also, a considerable
reduction in forming time using developed HISF process is observed as compared
to SPIF process alone.
Keywords Hybrid incremental sheet forming · Stretch forming · Single point
incremental forming · Thickness distribution · Localized thinning
R. Jagtap (B)
School of Mechanical Engineering, MIT World Peace University, Pune 411038, India
e-mail: rkjagtap20@gmail.com
V. Sisodia · K. More · S. Kumar
Department of Mechanical Engineering, Sardar Vallabhbhai National Institute of Technology,
Surat, Gujarat 395007, India
e-mail: vikas.singh619@gmail.com
S. Kumar
e-mail: skbudhwar@med.svnit.ac.in
© The Editor(s) (if applicable) and The Author(s), under exclusive license
to Springer Nature Singapore Pte Ltd. 2021
N. Gascoin and E. Balasubramanian (eds.), Innovative Design, Analysis
and Development Practices in Aerospace and Automotive Engineering, Lecture Notes
in Mechanical Engineering, https://doi.org/10.1007/978-981-15-6619-6_16
151