Exceeding the limits in laser materials processing by bridging additive and subtractive manufacturing with continuous wave and ultrashort pulsed lasers: manufacturing of parts with undercuts

Manuel Henn; Matthias Buser; Daniel Holder; Christian Hagenlocher; Thomas Graf

doi:10.1117/12.3003688

12 March 2024 Exceeding the limits in laser materials processing by bridging additive and subtractive manufacturing with continuous wave and ultrashort pulsed lasers: manufacturing of parts with undercuts

Manuel Henn, Matthias Buser, Daniel Holder, Christian Hagenlocher, Thomas Graf

Author Affiliations +

Proceedings Volume 12876, Laser 3D Manufacturing XI; 128760D (2024) https://doi.org/10.1117/12.3003688
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

Laser-based powder bed fusion of metals faces limitations in accuracy, surface quality, and minimal structure size resulting from the inherent melting process. To address these challenges, a novel approach integrating additive and subtractive laser processes at the layer level has been developed. This quasi-simultaneous manufacturing process enables the fabrication of small structures with high aspect ratios, including narrow slits below 50 μm in width. The implications of this advancement are promising, particularly in the fields of electric drives and fuel cells, where accuracy and freedom of design are crucial. In this work, the latest results of the production of narrow, inclined slits in components made of pure iron will be shown. Characteristics like groove-to-groove distance and groove width were analyzed, achieving successful production of continuous slits with varying inclination angles of up to 30° within the manufactured components.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Manuel Henn, Matthias Buser, Daniel Holder, Christian Hagenlocher, and Thomas Graf "Exceeding the limits in laser materials processing by bridging additive and subtractive manufacturing with continuous wave and ultrashort pulsed lasers: manufacturing of parts with undercuts", Proc. SPIE 12876, Laser 3D Manufacturing XI, 128760D (12 March 2024); https://doi.org/10.1117/12.3003688

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available