TY - GEN

T1 - Shearing of Aluminium Rods for the Production of Billets for Bulk Metal Forming Operations

AU - Behrens, Bernd-Arno

AU - Brunotte, Kai

AU - Lippold, Lennard

N1 - Funding information: The presented investigations are results of the project “Investigations of the shear behaviour of aluminium alloys” (15868206)‚ sponsored by the German Research Foundation (DFG). We are grateful for the assistance provided.

PY - 2019/9/18

Y1 - 2019/9/18

N2 - Shearing of bulk material is a cost efficient method of producing billets for subsequent forging operations. The procedure of rod shearing is characterised by high billet output quantities without metal removal. This technique is widely used in industrial processing of steel materials. Aluminium billets however, are mostly produced by sawing, causing higher manufacturing costs due to comparably low output. The aim of this paper is an enhancement of sheared aluminium billet quality in order to fulfil industrial standards required for further forging operations. To enhance the quality of sheared aluminium billets, the shearing process parameter clearance (distance between the blades) was varied to create billets of four different aluminium alloys, as EN AW 5754 (UNS A95754), EN AW 5083 (UNS A95083), EN AW 6082 (UNS A96082) and EN AW 7075 (UNS A97075) in different conditions. The quality of sheared billets is assessed by analysing inclination angle, waviness and surface defects of the sheared parts with 3D-measurement. In the investigation, it can be shown that the tensile strength of the investigated alloys influences the billet surfaces. High tensile strength results in positive billet quality. Further, small clearances show best results concerning inclination angles, while higher clearances result in decreased waviness.

AB - Shearing of bulk material is a cost efficient method of producing billets for subsequent forging operations. The procedure of rod shearing is characterised by high billet output quantities without metal removal. This technique is widely used in industrial processing of steel materials. Aluminium billets however, are mostly produced by sawing, causing higher manufacturing costs due to comparably low output. The aim of this paper is an enhancement of sheared aluminium billet quality in order to fulfil industrial standards required for further forging operations. To enhance the quality of sheared aluminium billets, the shearing process parameter clearance (distance between the blades) was varied to create billets of four different aluminium alloys, as EN AW 5754 (UNS A95754), EN AW 5083 (UNS A95083), EN AW 6082 (UNS A96082) and EN AW 7075 (UNS A97075) in different conditions. The quality of sheared billets is assessed by analysing inclination angle, waviness and surface defects of the sheared parts with 3D-measurement. In the investigation, it can be shown that the tensile strength of the investigated alloys influences the billet surfaces. High tensile strength results in positive billet quality. Further, small clearances show best results concerning inclination angles, while higher clearances result in decreased waviness.

KW - Aluminium

KW - Billet production

KW - Forging

KW - Shear stress

KW - Shearing

UR - http://www.scopus.com/inward/record.url?scp=85083013538&partnerID=8YFLogxK

U2 - 10.1007/978-3-030-24247-3_15

DO - 10.1007/978-3-030-24247-3_15

M3 - Conference contribution

AN - SCOPUS:85083013538

SN - 978-3-030-24246-6

T3 - Lecture Notes in Mechanical Engineering (LNME)

SP - 133

EP - 141

BT - Advances in Materials, Mechanics and Manufacturing

A2 - Chaari, Fakher

A2 - Barkallah, Maher

A2 - Zouari, Bassem

A2 - Haddar, Mohamed

A2 - Khabou, Mohamed Taoufik

A2 - Bouguecha, Anas

A2 - Kchaou, Mounir

PB - Springer Nature

T2 - 2nd International Conference on Advanced Materials, Mechanics and Manufacturing, A3M 2018

Y2 - 17 December 2018 through 19 December 2018

ER -