Technical papers

Quantitative Surface Quality Assessment of Car Outer Panels with a Virtual Light Room
“Quantitative Surface Quality Assessment of Car Outer Panels with a Virtual Light Room” was published by ESI, Autaza & AEA for the International Body Congress in Liviona, in 2019. Abstract.…
Sheet Metal Forming Sheet Metal Forming, Quantitative Surface Quality
Low Transformation Temperature Welding Consumables for Residual Stress Management: A Numerical Model for the Prediction of Phase TransformationInduced Compressive Residual Stresses
Harmful tensile residual stresses are observed in structural steel weld joints as a result of the thermal strains between the solidified weld metal and surrounding base material. These harmful stresses, superimposed on …
Welding & Assembly Low Transformation Temperature Welding Consumables,Martensitic Transformation, PhaseInduced Volumetric Expansion, Residual Stress Management, Compressive Residual Stress, Numerical Analysis, Residual Stress Evolution with Time
Low Transformation Temperature Welding Consumables For Residual Stress Management: Consumables Development And Testing Qualification
Residual stresses induced during joining are major contributors to the overall stresses in the vicinity of structural weld joints. Undesirable tensile residual stress is observed in low-carbon structural steel weld…
Welding & Assembly Low-Transformation-Temperature Welding Consumables, Martensitic Transformation, Phase-Induced Volumetric Expansion, Residual Stress Management, Compressive Residual Stress, Fatigue Strength, Microstructures, Microhardness
Virtual Manufacturing versus Challenges in Lightweight Vehicle Programmes
The paper presents a brief summary of three different R&D projects carried out in collaboration between ESI Group and a number of academic and industrial partners. All projects are directly related to producing…
Sheet Metal Forming
From Part Design to Part Production - Virtual Hot Forming Engineering Illustrated – Focus Material Modelling
In a press hardening process, significant efforts are necessary to model material behavior and combinations of material in one part, patch work, and die spotting. In this paper, a focus will be put on accurate modeling…
Sheet Metal Forming
Advancements of Virtual Prototyping in the World of Demanding Regulations
Regulations in safety and fuel efficiency are putting more and more pressure on the Automotive Industry to move towards lightweight solutions. Consequently, innovative research and a 3G engineering approach (gage, grade…
Sheet Metal Forming, Virtual Performance, Virtual Reality Sheet Metal Forming, Material Cost Estimation, Die Face Design, Press Hardening, Welding Assembly, Lightweight, Virtual Prototyping
Advancements in tailored hot stamping simulations: cooling channel and distortion analyses
Hot stamped components have been widely used in the automotive industry in the last decade where ultra high strength is required. These parts, however, may not provide sufficient toughness to absorb crash energy.…
Sheet Metal Forming Hot Stamping, 22MnB5 Steel, Tailored Properties, Hardness Estimation, Distortion Analysis, Cooling Channel Analysis
Virtual prototyping of lightweight designs made with cold and hot formed tailored solutions
Tailored hot and cold formed solutions are one key to the lightweight construction challenges of the future. Only tailored solutions allow the combination of soft and hard zones for the best possible crash performance…
Sheet Metal Forming Hot forming, Tailored parts, Virtual prototyping
Numerical simulation of powder metal forming process using the SPH Method
The method of Smoothed Particle Hydrodynamics (SPH) is used for the numerical simulation of compaction of iron powder. The character of SPH allows for accurately tracking relevant material properties within a Lagrangian…
Sheet Metal Forming, Virtual Performance Metal forming, Iron powder, Compaction, Sintering, Numerical simulation, Smoothed Particle Hydrodynamics
Welding characteristics and modeling of lithium-polymer battery for electric vehicle
The fatigue life is a major issue of weld joints due to a severe thermal exposure during the welding process. Welded joints experience highly localized heating and cooling from welding processes. As a result, the…
Welding & Assembly