Refine
Year of publication
Document Type
- Conference Proceeding (57)
- Article (reviewed) (9)
- Book (8)
- Patent (4)
- Article (unreviewed) (3)
- Part of a Book (1)
- Contribution to a Periodical (1)
- Letter to Editor (1)
Conference Type
- Konferenzartikel (55)
- Konferenz-Abstract (1)
- Konferenz-Poster (1)
Language
- English (59)
- German (24)
- Other language (1)
Has Fulltext
- no (84) (remove)
Is part of the Bibliography
- yes (84)
Keywords
- Additive Manufacturing (7)
- Ausbildung (6)
- Produktion (6)
- Additive Tooling (4)
- CAD (4)
- Design (4)
- Digitalisierung (3)
- 3D-Druck (2)
- CAAD (2)
- Druck (2)
Institute
- Fakultät Wirtschaft (W) (78)
- Fakultät Maschinenbau und Verfahrenstechnik (M+V) (9)
- Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) (4)
- Fakultät Elektrotechnik, Medizintechnik und Informatik (EMI) (ab 04/2019) (4)
- Fakultät Medien und Informationswesen (M+I) (bis 21.04.2021) (1)
- WLRI - Work-Life Robotics Institute (1)
Open Access
- Closed Access (32)
- Open Access (29)
- Closed (10)
- Diamond (3)
- Bronze (1)
- Gold (1)
- Hybrid (1)
Plastics are used today in many areas of the automotive, aerospace and mechanical engineering industries due to their lightweight potential and ease of processing. Additive manufacturing is applied more and more frequently, as it offers a high degree of design freedom and eliminates the need for complex tools. However, the application of additively manufactured components made of plastics have so far been limited due to their comparatively low strength. For this reason, processes that offer additional reinforcement of the plastic matrix using fibers made of high-strength materials have been developed. However, these components represent a composite of different materials produced on the basis of fossil raw materials, which are difficult to recycle and generally not biodegradable.
Therefore, this paper will explore the potential for new composite materials whose matrix consists of a bio-based plastic. In this investigation, it is assumed that the matrix is reinforced with a fibrous material made of natural fiber to significantly increase the strength. This potential material should offer a lightweight yet strong structure and be biodegradable after use under controlled conditions. Therefore, the state of the art in the use of bio-based materials in 3D printing is first presented. In order to determine the economic boundary conditions, the growth potentials for bio-based materials are analyzed. Also, the recycling prospects for bio-based plastics will also be highlighted. The greenhouse gas emissions and land use to be expected when using bio-based materials are also estimated. Finally, the degradability of the composites is discussed.
The Human-Robot-Collaboration (HRC) has developed rapidly in recent years with the help of collaborative lightweight robots. An important prerequisite for HRC is a safe gripper system. This results in a new field of application in robotics, which spreads mainly in supporting activities in the assembly and in the care. Currently, there are a variety of grippers that show recognizable weaknesses in terms of flexibility, weight, safety and price.
By means of Additive manufacturing (AM) gripper systems can be developed which can be used multifunctionally, manufactured quickly and customized. In addition, the subsequent assembly effort can be reduced due to the integration of several components to a complex component. An important advantage of AM is the new freedom in designing products. Thus, components using lightweight design can be produced. Another advantage is the use of 3D multi-material printing, wherein a component with different material properties and also functions can be realized.
This contribution presents the possibilities of AM considering HRC requirements. First of all, the topic of Human-Robot-Interaction with regard to additive manufacturing will be explained on the basis of a literature review. In addition, the development steps of the HRI gripper through to assembly are explained. The acquired knowledge regarding the AM are especially emphasized here. Furthermore, an application example of the HRC gripper is considered in detail and the gripper and its components are evaluated and optimized with respect to their function. Finally, a technical and economic evaluation is carried out. As a result, it is possible to additively manufacture a multifunctional and customized human-robot collaboration gripping system. Both the costs and the weight were significantly reduced. Due to the low weight of the gripping system only a small amount of about 13% of the load of the robot used is utilized.
PROBLEM TO BE SOLVED: To provide a method of producing a robot component, particularly a gripper, the method being capable of being applied multi-functionally and shortening a mounting time to a robot.
SOLUTION: A method of producing a robot component, particularly a finger 5, applied to robotics by a three-dimensional printing method of this invention comes not to require other production processes such as attachment of a cover, etc. with a separate sensor or a material (soft, in many cases), etc., by simultaneously printing at least one sensor 7 by multi-material printing while printing the robot component.
Die Erfindung betrifft ein Verfahren zum 3D-Druck eines Roboterelements, insbesondere eines Fingers 5, zum Einsatz in der Robotik, bei dem mittels Multimaterialdruck wenigstens ein Sensor 7 während des Drucks des Roboterelements mitgedruckt wird. Weiterhin betrifft die Erfindung ein Betätigungs- oder Greifelement, insbesondere Finger 5 für einen Roboter, das durch ein derartiges Verfahren hergestellt wurde.
A method for 3D printing of a robot element, more particularly a finger for use in robotics. At least one sensor is concomitantly printed by means of multi-material printing during the printing of the robot element. A gripping element produced by a method of this kind includes a number of printed layers of robot element material and a concomitantly printed sensor.
Fusion 360 – kurz und bündig
(2020)
Dieses Lehrbuch ermöglicht dem Anfänger in der 3D-Modellierung einen schnellen Einstieg in die Arbeit mit dem cloudbasierten CAD-System Autodesk® Fusion 360TM. Der Schwerpunkt liegt dabei auf den grundlegenden Funktionen zur Modellierung von Einzelteilen und dem Zusammenbau von Produkten, sowie in der Erstellung von einfachen technischen Zeichnungen. Dabei werden bei jedem Schritt die besonderen Anforderungen an eine 3D-Druck-gerechte Gestaltung erläutert und umgesetzt. Somit ist das Ergebnis dieser „Schritt für Schritt“-Anleitung die vollständige Modellierung eines Miniatur-Automobils, das am 3D-Drucker in ein reales Modell umgesetzt werden kann. Das didaktische Konzept ist so ausgelegt, dass alle Schritte für ein Selbststudium geeignet sind. Die vorliegende Auflage wurde komplett überarbeitet, sie basiert auf der neuen Benutzeroberfläche User Interface (UI) und enthält ein neues Kapitel zum CNC-Blechbiegen.
Additive manufacturing (AM) or 3D printing (3DP) has become a widespread new technology in recent years and is now used in many areas of industry. At the same time, there is an increasing need for training courses that impart the knowledge required for product development in 3D printing. In this article, a workshop on “Rapid Prototyping” is presented, which is intended to provide students with the technical and creative knowledge for product development in the field of AM. Today, additive manufacturing is an important part of teaching for the training of future engineers. In a detailed literature review, the advantages and disadvantages of previous approaches to training students are examined and analyzed. On this basis, a new approach is developed in which the students analyze and optimize a given product in terms of additivie manufacturing. The students use two different 3D printers to complete this task. In this way, the students acquire the skills to work independently with different processes and materials. With this new approach, the students learn to adapt the design to different manufacturing processes and to observe the restrictions of different materials. The results of these courses are evaluated through feedback in a presentation and a questionnaire.
Dieses Lehrbuch ermöglicht dem Anfänger in der 3D-Modellierung einen schnellen Einstieg in die Arbeit mit dem cloudbasierten praxisorientierten CAD-System Onshape. Dabei werden bei jedem Schritt die besonderen Anforderungen an eine 3D-Druck-gerechte Gestaltung erläutert und umgesetzt. Somit ist das Ergebnis dieser „Schritt für Schritt“-Anleitung die vollständige Modellierung eines Miniatur-Automobils, das am 3D-Drucker in ein reales Modell umgesetzt werden kann. Die aktuelle Auflage wurde zugunsten besserer Lesbarkeit in ein größeres Format gebracht, die Inhalte wurden neu gegliedert und aktualisiert und um das Kapitel „Blechbauteile für CNC-Biegen" erweitert.
In addition to traditional methods in product development, the increasing availability of additive manufacturing AM technologies offer new opportunities in product development processes today. This contribution explores several ways in which AM can productively be used in education. New to this approach is amongst others that the students assemble and install the 3D-printers themselves. In two case studies is demonstrated how students in design education are able to autonomously research and realize technical possibilities and limitations of AM technologies, as well as economic constraints.