A physics-based constitutive model for machining simulation of Ti-6Al-4V titanium alloy
Paper i proceeding, 2023

Today, simulation of cutting processes still relies, in most cases, on the phenomenological representation of flow stress properties of workpiece materials. This investigation presents a physics-based (dislocation-based) constitutive model to simulate the flow stress properties of Ti6Al4V titanium alloy at elevated temperatures and a large range of strain rates. The Split Hopkinson Pressure Bar (SHPB) data and inverse modelling of orthogonal cutting tests are combined using a novel approach to obtain flow stress properties and to calibrate the damage and friction models. The applicability of the presented model for cutting simulation is critically discussed.

FEM

Dislocaiton-based

Ti6Al4V

Inverse identification

SHPB

Författare

Amir Malakizadi

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Jannis Saelzer

Technische Universität Dortmund

Sebastian Berger

Technische Universität Dortmund

Youssef Alammari

Technische Universität Dortmund

Dirk Biermann

Technische Universität Dortmund

Publicerad i

Procedia CIRP

22128271 (eISSN)

Vol. 117 s. 335-340

Konferens

19th CIRP Conference on Modeling of Machining Operations, CMMO 2023
Karlsruhe, Germany, 2023-05-30 - 2023-06-01

Forskningsprojekt

Ett ramverk för fysikbaserad uppskattning av verktygsförslitning i skärande bearbetning

VINNOVA (2020-05179), 2021-03-22 -- 2024-11-20.

Kategorisering

Ämneskategorier (SSIF 2011)

Teknisk mekanik

Metallurgi och metalliska material

Identifikatorer

DOI

10.1016/j.procir.2023.03.057

Mer information

Senast uppdaterat

2023-07-21