Die Blechumformung beginnt mit der Simulation

Bei den in Kapitel 4 behandelten Grundlagen für die Verfahren der Blechumformung konnten mit Gesetzen der elementaren Plastizitätstheorie das Spannungs- und Formänderungsverhalten modellhaft, teilweise vereinfacht, aber in der Praxis für symmetrische Teileformen bewährt, abgeleitet werden.

When seizureSeizure on the die surface occurs in the production of automobile parts in sheet metal formingSheet metal forming,Seizure it is rarely evaluated using an actual sheet metal formingSheet metal forming machine unlike the rolling, the forging and so on. 

Fusion 360 bietet auch die Möglichkeit, Bauteile aus Blech zu entwerfen, die anschließend aus einer flachen Blechtafel ausgeschnitten und mithilfe einer CNC-Biegemaschine in eine dreidimensionale Form gebracht werden. 

In this study, an efficient numerical approach for automotive sheet forming simulation is proposed in consideration of deformation of tools. The proposed algorithm is based on sequential update of local contact state and pressure at the sheet metal-tool interfaces, which determines the deformation of tools.

Am Beispiel einer Gehäuseabdeckung sollen wesentliche Funktionen der Blechteilmodellierung gezeigt werden.

Dieses Kapitel ist der Modellierung von Blechteilen gewidmet. Nach einer kurzen Erläuterung der spezifischen Buttons und Besonderheiten erfolgt die Modellierung mehrerer Einzelteile und anschließend deren Zusammenbau.

New rapid gas-based hot sheet metal forming processes are being invented to manufacture geometrically complex automotive components from lightweight high-strength aluminum alloys. The complexity of the forming processes necessitates a computationally economic yet sufficiently accurate modelling and simulation methodology.

Deformation of die tools caused by high pressing force has been concerned in a practical sheet metal forming process. The deformations introduce changes in the contact condition between the die faces and the work-piece, affecting product quality such as formability, springback, and surface deflection. 

Complex forming parts that include functional elements can be produced by means of sheet-bulk metal forming within one process step. Adding functional elements to a workpiece design can lead to design asymmetry.  As a result, horizontal forces appear during the forming process.

Dieses Kapitel ist der Modellierung von Blechteilen gewidmet. Basis der Modellierung ist hier das Feature BASIS-BLECH. Danach erfolgt die Modellierung mit dem Feature KANTE-LASCHE. Dies wird an zwei Blechteilen geübt.

Onshape bietet auch die Möglichkeit, Bauteile aus Blech zu entwerfen, die anschließend aus einer flachen Blechtafel ausgeschnitten und mithilfe einer CNC-Biegemaschine in eine dreidimensionale Form gebracht werden. 

In industrial sheet forming of high strength steel sheets, shear fracture has been reported to occur in narrow die shoulders where the sheet is subject to excessive bending and stretching. For high strength steel plates, which generally show low ductility, the die curvature becomes relatively large for thin sheets, increasing the risk of fracture.

Minimizing manufacturing time is a major advancement that decreases the entire cost of production and reduces the time for a commodity to be sold. One of the main titles of the sheet metal industry is the convergence of sheet metal product design, simplification, and fabrication applications. 

Structural car body components made of advanced-high-strength steels (AHSS) offer a high potential for lightweight design, while meeting increased requirements regarding crash performance simultaneously. However, manufacturing the dedicated parts using conventional deep-drawing processes often results in a high amount of shape deviation after removing the part from the tool. 

Predicting defects is a challenge in many processing steps during manufacturing because there is a great number of variables involved in the process. In this paper, we take a machine learning perspective to choose the best model for defects prediction of sheet metal forming processes.