08.11.2018

Success in micro nozzle mass production made of difficult-to-machine material


Quelle: Taisei Kogyo Co., Ltd.
08.11.2018
In general, high dimensional accuracy of a taper, curve design and smooth surface are required in small nozzles, especially the ones used in gasoline or diesel engines. Those nozzles directly inject fuel into the cylinder thus, the spray characteristics affect the fuel consumption or other performance directly. The optimum flow path design obtained from numerical calculations or other simulation is generally introduced, however, it is very difficult to realise the design in mass production. Moreover, if the nozzle diameter is less than 1 mm, it is difficult to mass produce even the simple straight hollow design due to the very shortcutting tool lifetime.
 
Realising the world's first 0.03 mm hole nozzle 17-4PH in MIM industry
Taisei Kogyo Co., Ltd. has realized mass production of micro nozzle, φ 0.03 mm with an aspect ratio of five. 0.03 mm is actually smaller than a standard hair diameter. It is said φ 0.05 mm is the smallest limit by machining at this moment. Their moulding and sintering technology using super fine metal powder, which cultivated as μ-MIM technology, realizes a dense smooth surface, the roughness of Ra = 0.3 without post-processing. In microfabrication like this nozzle, it is difficult to achieve this surface quality even with the latest laser processing technology due to the problem of dross deposits or residual thermal stress etc.

Contact: Izumi Nakamura, Taisei Kogyo Co.,Ltd
izumi_nakamura@taisei-kogyo-net.co.jp 

Empfohlene Artikel

11.03.2024

Wissenschaftler:innen des Laser Zentrum Hannover e.V. (LZH) haben einen automatisierten Prozess zum Laserbohren entwickelt, der die Bearbeitung von kohlenstofffaserverstärkten Kunststoffen …

06.09.2023

Gemeinsam mit EPIC und der W3+ Fair organisiert der IVAM Fachverband für Mikrotechnik einen Gemeinschaftsstand auf der neuen Asia Photonics …

24.05.2023

Das Fraunhofer-Instituts für Lasertechnik ILT hat jetzt ein neues, besonders kompaktes Scannermodul entwickelt, das erhebliche Effizienzsteigerungen zum Beispiel im 3D-Druck, …

Empfohlene Veranstaltungen

11.11. - 14.11.2024
Produktmarkt "High-tech for Medical Devices" und "COMPAMED HIGH-TECH FORUM" in Halle 8a, F29 (IVAM Lounge)
05.03. - 07.03.2025
Entdecken Sie die Zukunft der Photonik mit IVAM
04.02. - 06.02.2025
Medical Design & Manufacturing - IVAM präsentiert Sonderbereich Micro Nanotech in Halle C