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Article
Open AccessA Test Stand for Quantifying the Core Gas Release and the Gas Permeability of Inorganically-Bound Foundry Cores
Environmental and work safety aspects necessitate a radical change in the foundry industry. Organic binder systems for foundry sand cores create toxic combustion products and are, therefore, more and more ofte...
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Article
Open AccessData-Driven Process Analysis for Iron Foundries with Automatic Sand Molding Process
This paper proposes a methodological framework to develop a data-driven process control using pure industrial production data from a cast iron foundry, despite the limitation of complete casting traceability. ...
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Chapter and Conference Paper
Data-Based Global Control of the Part’s Geometry During Free-Form Bending
Freeform bending is a kinematically-controlled bending process that can be used to achieve complex 3D geometries. Geometry control of the bent part is particularly challenging because a geometric error that ha...
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Article
Open AccessBinder Content and Storing Conditions of Inorganically-Bound Foundry Cores Determine the Intensity and Onset Time of Gas Release in Metal Casting
Organically-bound foundry cores are substituted by inorganically-bound cores increasingly. This trend is due to regulatory efforts, workplace safety issues, and increasing costs for waste deposits. Changing th...
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Article
Open AccessDeviation compensation in LPBF series production via statistical predeformation and structural pattern analysis
This article proposes two approaches for a tailored geometrical deviation compensation for Laser-Powder-Bed-Fusion production. The deviation compensation is performed by a non-rigid deformation of the manufact...
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Article
Open AccessLocalization of cavities in cast components via impulse excitation and a finite element analysis
In this work, the acoustic resonance testing method has been extended by a finite element analysis of the examined component to localize cavities within die casting parts. This novel method aims at a fast and ...
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Chapter and Conference Paper
Effect of Equal-Channel Angular Pressing and Targeted Heat Treatment on Aluminum AA7075 Sheet Metal
In this was used to improve sheet metal. route C, involving either channel geometry, forming temperature, or post-treatment time. The specimens were evaluated by tensile testing and compared with refer...
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Article
Open AccessAnalysis of salts for use as support structure in metal material jetting
Material jetting (MJT) is a category of additive manufacturing processes where the build material is deposited in the form of individual droplets. MJT has recently been expanded into the field of metal process...
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Article
A Novel Method for Measuring Elastic Modulus of Foundry Silicate Binders
This article develops a novel method for measuring the elastic modulus of hardened silicate binders for foundry cores. We measured hardened silicate binder within the original dimensions of the binder bridges ...
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Chapter and Conference Paper
Detection of Core Fracture in Inorganically Bound Cast-in Sand Cores by Acoustic Microphony
This article suggests a new method to detect the fracture of cast-in sand cores. The goal of this approach is to reduce the time and efforts as well as increase the stability of the decoring process. A testin...
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Article
The relationship between enterprise risk management, value and firm characteristics based on the literature
In the wake of the increasing importance of comprehensive enterprise-wide risk management approaches (ERM) in the last years, e. g. due to stronger regulatory requirements, the field of research on ERM has att...
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Article
Effect of Whole-Body Vibration and Insulin-Like Growth Factor-I on Muscle Paralysis-Induced Bone Degeneration after Botulinum Toxin Injection in Mice
Botulinum toxin A (BTX)-induced muscle paralysis results in pronounced bone degradation with substantial bone loss. We hypothesized that whole-body vibration (WBV) and insulin-like growth factor-I (IGF-I) trea...
