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by Jan T.

MEX-P durchmesser reduktion formel

MEX-P reduzierung einer Länge fomrel

What is the Track Width Compensation and why is it needed?

Why is a Hatch Angle for block support necessary? In which range should the Angle be?

The hatch angle is the angle between hatch and recoating direction. To avoid sharp edges parallel to the recoater a hatch angle between 10°an 80°is needed (chessboard pattern).

Give an example of each of the three types of design automation and explain their application in the context of additive manufacturing.

Parametric Design
Algorithmic Design
Generative Design

Describe how the role of the designer is changing as a result of design automation

1. Definition of boundary conditions: Designers define the constraints and input data instead of designing the product from scratch.

2. Algorithmic control: Selection and control of algorithms that generate designs.

3. Evaluation and selection: Analyzing and evaluating the automatically generated designs to select the best variant.

Discuss the advantages and disadvantages of using design configurators in product development

Advantages:

▪ Time saving: Faster generation of designs.

▪ Consistency: Compliance with defined boundary conditions and standards.

▪ Flexibility: Easy adaptation to different requirements and conditions.

▪ Solution space: Generation of further solutions that cannot be conceived by the designer through the use of generative algorithms

Disadvantages:

▪ Training time: Requires knowledge of how to use the configurators and the underlying algorithms.

▪ Costs: High initial investment in software and training.

▪ Limited creativity: Possibly less creative freedom for the designer, as the designs are algorithmically predefined.

Why is the representation of a circle with explicit (direct) mathematical representation not possible?

Explicit functions are represented as 𝑦=𝑓(𝑥) There is only one value of y for each value of x. Curves can´t loop.

STL geometry representation of objects are typically considered to be hollow. The objects are modelled by a surface composed of polygons. How is defined which side of the polygon surface is inwards or outwards?

Each polygon (triangle) is characterized by the three corner points and corresponding surface normal. The normal vector of the triangle is always directed in a positive direction outwards the volume.

What is the difference between geometrical representation and data format?

Descripes the (mathematical) way, how a geometrie is defined
Data formats: Is the technical implementation of a geomatric representation method Different data formats represent the same geometric representation

Which methods c be used i the “desi co ce t fu ctio i te r tio ” ste withi the di it l de elo me t process?

Methods such as

▪ monolithic design

▪ lattice structures

▪ topology optimization

▪ function integration

MEX-P reduzierung eines durchmessers

👉 DED-LB → effektive Energiedichte schwer exakt vorherzusagen → Pulverausnutzung (powder efficiency) ist nicht genau bekannt.

Which types of cost models are best suited for the use case "Prediction of cost benefits of an L-PBF machine parameter optimization"?

Simulative cost models

. What functions does a PLM system include?

PLM = Produktdaten + Versionen + Änderungen + Workflows

Definition Einheitszelle?

Handelt es sich um eine Gruppe von Streben, die als Ganzes angeordnet ist und sich über den Konstruktionsraum

eines Bauteils wiederholt?

Name the 3 main tasks of part identification!

Ermittlung der Teile, die technisch mittels additiver Fertigung hergestellt werden können.
Ermittlung der Teile, die einen wirtschaftlichen Mehrwert schaffen
Ermittlung der Teile, die (beim Kunden) als Endprodukt verwendet werden können. Preis-Leistungs-Vorteile in Verbindung mit einer ausreichenden Qualitätssicherung.