Frank Vollertsen – författare

This open access book contains the research report of the Collaborative Research Center “Micro Cold Forming” (SFB 747) of the University of Bremen, Germany. The topical research focus lies on new methods and processes for a mastered mass production of micro parts which are smaller than 1mm (by forming in batch size higher than one million). The target audience primarily comprises research experts and practitioners in production engineering, but the book may also be of interest to graduate students alike.

Micro Metal Forming, i. e. forming of parts and features with dimensions below 1 mm, is a young area of research in the wide field of metal forming technologies, expanding the limits for applying metal forming towards micro technology. The essential challenges arise from the reduced geometrical size and the increased lot size. In order to enable potential users to apply micro metal forming in production, information about the following topics are given:tribological behavior: friction between tool and work piece as well as tool wearmechanical behavior: strength and formability of the work piece material, durability of the work pieces size effects: basic description of effects occurring due to the fact, that the quantitative relation between different features changes with decreasing size process windows and limits for forming processestool making methodsnumerical modeling of processes and process chainsquality assurance and metrologyAll topics are discussed with respect to the questions relevant to micro metal forming. The description comprises information from actual research and the young history of this technology branch to be used by students, scientists and engineers in industry who already have a background in metal forming and like to expand their knowledge towards miniaturization. tribological behavior: friction between tool and work piece as well as tool wearmechanical behavior: strength and formability of the work piece material, durability of the work pieces size effects: basic description of effects occurring due to the fact, that the quantitative relation between different features changes with decreasing size process windows and limits for forming processestool making methodsnumerical modeling of processes and process chainsquality assurance and metrologyAll topics are discussed with respect tothe questions relevant to micro metal forming. The description comprises information from actual research and the young history of this technology branch to be used by students, scientists and engineers in industry who already have a background in metal forming and like to expand their knowledge towards miniaturization.

Micro Metal Forming, i. e. forming of parts and features with dimensions below 1 mm, is a young area of research in the wide field of metal forming technologies, expanding the limits for applying metal forming towards micro technology. The essential challenges arise from the reduced geometrical size and the increased lot size. In order to enable potential users to apply micro metal forming in production, information about the following topics are given:

tribological behavior: friction between tool and work piece as well as tool wearmechanical behavior: strength and formability of the work piece material, durability of the work pieces size effects: basic description of effects occurring due to the fact, that the quantitative relation between different features changes with decreasing size process windows and limits for forming processestool making methodsnumerical modeling of processes and process chainsquality assurance and metrology

All topics are discussed with respect to the questions relevant to micro metal forming. The description comprises information from actual research and the young history of this technology branch to be used by students, scientists and engineers in industry who already have a background in metal forming and like to expand their knowledge towards miniaturization.

tribological behavior: friction between tool and work piece as well as tool wearmechanical behavior: strength and formability of the work piece material, durability of the work pieces size effects: basic description of effects occurring due to the fact, that the quantitative relation between different features changes with decreasing size process windows and limits for forming processestool making methodsnumerical modeling of processes and process chainsquality assurance and metrology

All topics are discussed with respect tothe questions relevant to micro metal forming. The description comprises information from actual research and the young history of this technology branch to be used by students, scientists and engineers in industry who already have a background in metal forming and like to expand their knowledge towards miniaturization.

Micro Metal Forming, i. e. forming of parts and features with dimensions below 1 mm, is a young area of research in the wide field of metal forming technologies, expanding the limits for applying metal forming towards micro technology. The essential challenges arise from the reduced geometrical size and the increased lot size. In order to enable potential users to apply micro metal forming in production, information about the following topics are given:tribological behavior: friction between tool and work piece as well as tool wearmechanical behavior: strength and formability of the work piece material, durability of the work pieces size effects: basic description of effects occurring due to the fact, that the quantitative relation between different features changes with decreasing size process windows and limits for forming processestool making methodsnumerical modeling of processes and process chainsquality assurance and metrologyAll topics are discussed with respect to the questions relevant to micro metal forming. The description comprises information from actual research and the young history of this technology branch to be used by students, scientists and engineers in industry who already have a background in metal forming and like to expand their knowledge towards miniaturization. tribological behavior: friction between tool and work piece as well as tool wearmechanical behavior: strength and formability of the work piece material, durability of the work pieces size effects: basic description of effects occurring due to the fact, that the quantitative relation between different features changes with decreasing size process windows and limits for forming processestool making methodsnumerical modeling of processes and process chainsquality assurance and metrologyAll topics are discussed with respect tothe questions relevant to micro metal forming. The description comprises information from actual research and the young history of this technology branch to be used by students, scientists and engineers in industry who already have a background in metal forming and like to expand their knowledge towards miniaturization.

Dieses Buch befasst sich mit Fragen, die das Erleben unserer Lebenszeit berühren. Warum vergeht die Zeit manchmal schnell und manchmal langsam? Warum erscheint ein Rückweg kürzer als ein Hinweg? Warum scheint die Zeit immer schneller zu vergehen, je älter man wird? Kann man Zeit haben, so, wie man ein Buch besitzen kann? Die in diesem Werk beschriebenen Phänomene im Zusammenhang mit dem Erleben von Zeit werden beobachtet und kritisch hinterfragt. Die Antworten auf die Fragen werden mit wissenschaftlichen Methoden konstruiert und die Vorgänge und Ergebnisse mit Beispielen aus dem Leben illustriert. Für das Verständnis wird keinerlei Vorwissen vorausgesetzt. Es werden Interpretationen und Lösungen angeboten, wie man die teils widersprüchlichen Dinge verstehen kann. Es wird auch aufgezeigt, wie man das tun kann, was man gerne möchte, auch wenn man meint, keine Zeit zu haben.