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Open AccessImplementation of an intelligent process monitoring system for screw presses using the CRISP-DM standard
Increasing the service life and process reliability of systems plays an important role in terms of sustainable and economical production. Especially in the field of energy-intensive bulk forming, low scrap rat...
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Article
Open AccessSensitivity of process signals to deviations in material distribution and material properties of hybrid workpieces
Hybrid components, made of multiple materials, can meet the increasing demands for lightweight construction and functional integration in the automotive and aircraft industry. Hybrid semi-finished components a...
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Article
Open AccessInvestigation of the altered influence of physical stress by the use of ergonomically optimized forging tongs
Work-related illnesses and the resulting employee absences can have a major impact on productivity and competitiveness, especially in small and medium-sized enterprises. Particularly in the forging industry, t...
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Open AccessAutomated design of multi-stage forging sequences for die forging
Forgings are produced in several process steps, the so-called forging sequence. The design of efficient forging sequences is a very complex and iterative development process. In order to automate this process ...
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Article
Open AccessNon-destructive Evaluation of Workpiece Properties along the Hybrid Bearing Bushing Process Chain
To combine the advantages of two materials, hybrid bulk metal workpieces are attractive for subsequent processes such as metal forming. However, hybrid materials rely on the initial bond strength for the effec...
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Article
Open AccessFeasibility study for the manufacturing of hybrid pinion shafts with the cross-wedge rolling process
The Collaborative Research Center 1153 is investigating an innovative process chain for the production of hybrid components. The hybrid workpieces are first joined and then formed by cross-wedge rolling. Pinio...
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Open AccessProcess analyses of friction drilling using the Smoothed Particle Galerkin method
As a cost-effective hole production technique, friction drilling is widely used in industrial and automotive manufacturing. Compared with the traditional bolted connection, it enables the fastening of thin met...
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Open AccessMaterial dependent surface and subsurface properties of hybrid components
Tailored forming is used to produce hybrid components in which the materials used are locally adapted to the different types of physical, chemical and tribological requirements. In this paper, a Tailored Formi...
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Open AccessInvestigation of the material combination 20MnCr5 and X45CrSi9-3 in the Tailored Forming of shafts with bearing seats
The Tailored Forming process chain is used to manufacture hybrid components and consists of a joining process or Additive Manufacturing for various materials (e.g. deposition welding), subsequent hot forming, ...
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Article
Open AccessPerspectives on data-driven models and its potentials in metal forming and blanking technologies
Today, design and operation of manufacturing processes heavily rely on the use of models, some analytical, empirical or numerical i.e. finite element simulations. Models do reflect reality as best as their des...
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Open AccessTailored Forming of hybrid bulk metal components
Multi-material bulk metal components allow for a resource efficient and functionally structured component design, with a load adaptation achieved in certain functional areas by using similar and dissimilar mat...
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Article
Open AccessClinching of inductively heated aluminum die casting
The aim of the investigations described in this article is to improve the clinching of aluminum die casting. The focus is on clinching an aluminum die casting alloy by local heat treatment and hence to join th...
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Article
Open AccessInvestigation of the influence of the forming process and finishing processes on the properties of the surface and subsurface of hybrid components
Due to the increased integration of functions, many components have to meet high and sometimes contradictory requirements. One way to solve this problem is Tailored Forming. Here, hybrid semi-finished products...
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Open AccessMaterial Characterization and Modeling for Finite Element Simulation of Press Hardening with AISI 420C
The process of press hardening is gaining importance in view of the increasing demand for weight reduction combined with higher crash safety in cars. An alternative to the established manganese-boron steel 22M...
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Article
Open AccessNumerische Prozessauslegung zur gezielten Eigenspannungseinstellung in warmmassivumgeformten Bauteilen unter Berücksichtigung von Makro- und Mikroskala
Ziel dieser Arbeit ist die Einstellung eines vorteilhaften Druckeigenspannungsprofils in warmumgeformten Bauteilen durch intelligente Prozessführung mit angepasster Abkühlung aus der Schmiedewärme. Die Machbar...
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Open AccessDevelopment of a numerical compensation framework for geometrical deviations in bulk metal forming exploiting a surrogate model and computed compatible stresses
The optimal design of the tools in bulk metal forming is a crucial task in the early design phase and greatly affects the final accuracy of the parts. The process of tool geometry assessment is resource- and t...
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Open AccessInfluence of degree of deformation on welding pore reduction in high-carbon steels
Locally adapted properties within a machine component offer opportunities to increase the performance of a component by using high strenght materials where they are needed. The economic production of such hybr...
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Article
Open AccessEnhancement of the interface of friction welded steel-aluminium joints
Lightweight multi-material components are of great importance for the transport industry. Not only the component’s weight can be decreased, but also its local properties can be adapted to different loading pro...
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Article
Open AccessA design concept of active cooling for tailored forming workpieces during induction heating
The demand for lightweight construction is constantly increasing. One approach to meet this challenge is the development of hybrid components made of dissimilar materials. The use of the hybrid construction me...
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Open AccessProcess chain for the manufacture of hybrid bearing bushings
The current study presents a novel Tailored Forming process chain developed for the production of hybrid bearing bushings. In a first step, semi-finished products in the form of locally reinforced hollow profi...