TY  - JOUR
A1  - Wollert, Jörg
T1  - Wireless in industriellen Anwendungen
JF  - Elektronik : Fachmedium für industrielle Anwender und Entwickler ; Sonderh. Scout : Leitfaden für Elektronik-Entwickler
Y1  - 2007
SN  - 1863-3420
SP  - 40
EP  - 46
ER  - 
TY  - JOUR
A1  - Barth, Heiko
A1  - Wollert, Jörg
T1  - SMARTes Konzept - von Produkt zur Fabrik
JF  - Facility-Management : Integration, Planung, Gebäudemanagement
Y1  - 1998
SN  - 0948-0048
VL  - Bd. 4
IS  - H. August
SP  - 30
EP  - 35
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Wieviel Echtzeit kann Windows?
JF  - IEE : elektrische Automatisierung und Antriebstechnik
Y1  - 1997
SN  - 1434-2898
VL  - Jg. 42
IS  - Nr. 9
SP  - 30
EP  - 37
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Zeitgemäß : Echtzeit-Zusatz für Windows 3.11 und Windows 95
JF  - ELRAD : Magazin für Elektronik und technische Rechneranwendungen
Y1  - 1996
SN  - 0170-1827
IS  - H. 9
SP  - 96
EP  - 99
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Bluetooth in der Klemme
JF  - Computer & Automation : Fachmedium der Automatisierungstechnik
Y1  - 2008
SN  - 1615-8512
IS  - H. 10
SP  - 62
EP  - 67
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Bluetooth: Funk für alle(s)? : 10 Jahre Bluetooth: ein Technologie-Über- und -Ausblick
JF  - Elektronik : Fachmedium für industrielle Anwender und Entwickler ; Sonderh. Wireless : Fachmedium für Entwicklungen funkbasierter Systeme
Y1  - 2008
IS  - Okt.
SP  - 36
EP  - 43
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Echtzeit-Ethernet : Protokoll-Reigen
JF  - elektroniknet.de
Y1  - 2015
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - 3D-Druck ist überall. Modische Accessoires, Kleidung, Medikamente, Nahrungsmittel, Autos, Häuser, Waffen, Büsten, Musikinstrumente - alles geht
JF  - Kunststoffe
Y1  - 2015
SN  - 0023-5563
VL  - 105
IS  - 10
SP  - 62
EP  - 70
PB  - Hanser
CY  - München
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Industrial Internet of Things : Seifenblase oder Revolution
JF  - Elektronik
Y1  - 2016
SN  - 0013-5658
N1  - gedruckt in der Bereichsbibliothek Eupener Str. unter der Signatur Z 263
IS  - 7
SP  - 39
EP  - 45
PB  - WEKA-Fachmedien
CY  - München
ER  - 
TY  - JOUR
A1  - Abbas, Karim
A1  - Balc, Nicolae
A1  - Bremen, Sebastian
A1  - Skupin, Marco
T1  - Crystallization and aging behavior of polyetheretherketone PEEK within rapid tooling and rubber molding
JF  - Journal of Manufacturing and Materials Processing
N2  - In times of short product life cycles, additive manufacturing and rapid tooling are important methods to make tool development and manufacturing more efficient. High-performance polymers are the key to mold production for prototypes and small series. However, the high temperatures during vulcanization injection molding cause thermal aging and can impair service life. The extent to which the thermal stress over the entire process chain stresses the material and whether it leads to irreversible material aging is evaluated. To this end, a mold made of PEEK is fabricated using fused filament fabrication and examined for its potential application. The mold is heated to 200 ◦C, filled with rubber, and cured. A differential scanning calorimetry analysis of each process step illustrates the crystallization behavior and first indicates the material resistance. It shows distinct cold crystallization regions at a build chamber temperature of 90 ◦C. At an ambient temperature above Tg, crystallization of 30% is achieved, and cold crystallization no longer occurs. Additional tensile tests show a decrease in tensile strength after ten days of thermal aging. The steady decrease in recrystallization temperature indicates degradation of the additives. However, the tensile tests reveal steady embrittlement of the material due to increasing crosslinking.
KW  - additive manufacturing
KW  - fused filament fabrication
KW  - crystallization
KW  - polyetheretherketone
KW  - rapid tooling
Y1  - 2022
U6  - https://doi.org/10.3390/jmmp6050093
SN  - 2504-4494
N1  - The article belongs to the Special Issue Advances in Injection Molding: Process, Materials and Applications
VL  - 6
IS  - 5
SP  - 1
EP  - 12
PB  - MDPI
CY  - Basel
ER  -