Influence of Material Delivery Condition on Residual Stresses and Part Properties During Forward Rod Extrusion

Jobst A, Merklein M (2021)

Publication Type: Conference contribution, Original article

Publication year: 2021

Original Authors: Andreas Jobst, Marion Merklein

Publisher: Springer

City/Town: Cham, Switzerland

Pages Range: 2277-2288

Event location: Grignano IT

ISBN: 9783030753801

DOI: 10.1007/978-3-030-75381-8_191

Abstract

During the manufacturing of semi-finished products, the material is subjected to various forming steps to achieve the final geometry. In order to reduce the work hardening introduced and to ensure a good formability, it is annealed before component manufacturing. Forming technologies like forward rod extrusion are well-established methods for the efficient production of resilient components. In this process, however, an inhomogeneous pre-strengthening of the material influences the stress distribution during forming and therefore the mechanical properties and the residual stresses in the component. Since they affect the parts’ operating behaviour, knowledge of the influence of the delivery condition of the material is necessary. The aim of this paper is to derive dependencies between material properties and the resulting residual stresses and work hardening in the component. Due to the increasing application, ferritic stainless steel X6Cr17 in the skin passed (+LC) and soft annealed (+A) states are used. Residual stresses, microstructure, and microhardness distribution of both material states are compared regarding the rods and extruded parts. The effects of the delivery condition are evaluated by comparing process and component properties.

Authors with CRIS profile

Andreas Jobst Institute of Manufacturing Technology (LFT) Marion Merklein Institute of Manufacturing Technology (LFT)

Related research project(s)

Investigation of residual stress related elementary processes in cold forged components in the manufacturing and operating phase Gezielte Nutzung umformtechnisch induzierter Eigenspannungen in metallischen Bauteilen Jan. 1, 2018 - March 31, 2024

How to cite

APA:

Jobst, A., & Merklein, M. (2021). Influence of Material Delivery Condition on Residual Stresses and Part Properties During Forward Rod Extrusion. In Proceedings of the 13th International Conference on the Technology of Plasticity (pp. 2277-2288). Grignano, IT: Cham, Switzerland: Springer.

MLA:

Jobst, Andreas, and Marion Merklein. "Influence of Material Delivery Condition on Residual Stresses and Part Properties During Forward Rod Extrusion." Proceedings of the 13th International Conference on the Technology of Plasticity, Grignano Cham, Switzerland: Springer, 2021. 2277-2288.

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