Parameters in selective laser melting for processing metallic powders

Tomasz Kurzynowski; Edward Chlebus; Bogumiła Kuźnicka; Jacek Reiner

doi:10.1117/12.907292

6 February 2012 Parameters in selective laser melting for processing metallic powders

Tomasz Kurzynowski, Edward Chlebus, Bogumiła Kuźnicka, Jacek Reiner

Proceedings Volume 8239, High Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications; 823914 (2012) https://doi.org/10.1117/12.907292
Event: SPIE LASE, 2012, San Francisco, California, United States

Abstract

The paper presents results of studies on Selective Laser Melting. SLM is an additive manufacturing technology which may be used to process almost all metallic materials in the form of powder. Types of energy emission sources, mainly fiber lasers and/or Nd:YAG laser with similar characteristics and the wavelength of 1,06 - 1,08 microns, are provided primarily for processing metallic powder materials with high absorption of laser radiation. The paper presents results of selected variable parameters (laser power, scanning time, scanning strategy) and fixed parameters such as the protective atmosphere (argon, nitrogen, helium), temperature, type and shape of the powder material. The thematic scope is very broad, so the work was focused on optimizing the process of selective laser micrometallurgy for producing fully dense parts. The density is closely linked with other two conditions: discontinuity of the microstructure (microcracks) and stability (repeatability) of the process. Materials used for the research were stainless steel 316L (AISI), tool steel H13 (AISI), and titanium alloy Ti6Al7Nb (ISO 5832-11). Studies were performed with a scanning electron microscope, a light microscopes, a confocal microscope and a μCT scanner.

Citation Download Citation

Tomasz Kurzynowski, Edward Chlebus, Bogumiła Kuźnicka, and Jacek Reiner "Parameters in selective laser melting for processing metallic powders", Proc. SPIE 8239, High Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications, 823914 (6 February 2012); https://doi.org/10.1117/12.907292

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