TY - CHAP

T1 - Flexible Manufacturing of Concave–Convex Parts by Incremental Sheet Forming with Active Medium

AU - Thiery, Sebastian

AU - Ben Khalifa, Noomane

N1 - Conference code: 13

PY - 2021

Y1 - 2021

N2 - Incremental sheet formingwith activemedium (IFAM) is a flexible manufacturing process that creates concave–convex sheet metal parts in one clamping without needing a counter tool or a die. In the first study of this new process (Ben Khalifa and Thiery in CIRP Ann 68(1):313–316, 2019, [1]), a conventional hemispherical tool has been used in interaction with pressurised air to manufacture concave–convex parts. Since the geometric accuracy was not satisfying, within the present study, a conical tool with a dedicated angle is introduced to IFAM. The idea behind this tool concept is to restrict the inclined part wall to a target angle. At first, results from the numerical investigation show an improvement of the accuracy when a conical tool is used to manufacture a truncated convex pyramid. Subsequently, experiments validate the numerical model and reveal increased process reliability. The experimental investigations of truncated convex cones and concave–convex parts close the paper and underline the feasibility of the tool concept.

AB - Incremental sheet formingwith activemedium (IFAM) is a flexible manufacturing process that creates concave–convex sheet metal parts in one clamping without needing a counter tool or a die. In the first study of this new process (Ben Khalifa and Thiery in CIRP Ann 68(1):313–316, 2019, [1]), a conventional hemispherical tool has been used in interaction with pressurised air to manufacture concave–convex parts. Since the geometric accuracy was not satisfying, within the present study, a conical tool with a dedicated angle is introduced to IFAM. The idea behind this tool concept is to restrict the inclined part wall to a target angle. At first, results from the numerical investigation show an improvement of the accuracy when a conical tool is used to manufacture a truncated convex pyramid. Subsequently, experiments validate the numerical model and reveal increased process reliability. The experimental investigations of truncated convex cones and concave–convex parts close the paper and underline the feasibility of the tool concept.

KW - Engineering

KW - incremental forming

KW - Active medium

KW - tool geometry

KW - concave-convex

KW - geometric accuracy

UR - http://www.scopus.com/inward/record.url?scp=85112561186&partnerID=8YFLogxK

UR - https://link.springer.com/content/pdf/bfm%3A978-3-030-75381-8%2F1.pdf

U2 - 10.1007/978-3-030-75381-8_45

DO - 10.1007/978-3-030-75381-8_45

M3 - Article in conference proceedings

SN - 978-3-030-75380-1

T3 - The Minerals, Metals and Materials Series

SP - 549

EP - 561

BT - Forming the Future

A2 - Daehn, Glenn

A2 - Cao, Jian

A2 - Kinsey, Brad

A2 - Tekkaya, Erman

A2 - Vivek, Anupam

A2 - Yoshida, Yoshinori

PB - Springer

CY - Cham

T2 - International Conference on the Technology of Plasticity

Y2 - 25 July 2021 through 30 July 2021

ER -