New laser surface treatments: cleaning, derusting, deoiling, depainting, deoxidizing, and degreasing

Giuseppe Daurelio; Giuseppe Chita; Massimo Cinquepalmi

doi:10.1117/12.281099

18 August 1997 New laser surface treatments: cleaning, derusting, deoiling, depainting, deoxidizing, and degreasing

Giuseppe Daurelio, Giuseppe Chita, Massimo Cinquepalmi

Proceedings Volume 3097, Lasers in Material Processing; (1997) https://doi.org/10.1117/12.281099
Event: Lasers and Optics in Manufacturing III, 1997, Munich, Germany

Abstract

Many materials as substrates and surface products have been tested. Typically ferrous (Carbon Steels and Stainless Steels) and non ferrous (Al and Cu metals and its alloys) ones have been employed. Some epoxy, polyurethane, polyester and acrylic paints in different thickness and color have been tested. Many types of the surface rust and oxide on different bulk material have been undertaken to test. Similarly some different types of oils and greases, usually used in industry against the oxidation, have been studied. Anyway many types of dirt, grit, calcareous one and so on, present on industrial components, have been laser cleaned without using solvents, acid baths and other ones. Different types of laser sources have been employed: an axial fast flow, 1.5 KW CO₂ c.w. and pulsed laser source, emitting a 10.6 micrometers beam; a portable CO₂ laser, c.w. (1 to 25 W) and pulsed (1 to 100 Hz and 400 ms max pulse duration) source, emitting a 10.6 micrometers beam with a multi-articulated seven mirrors guiding device and focussing head; a portable Nd-YAG laser, Q-switched and normal-mode source. 1st harmonic 1.06 micrometers (6 ns pulse duration), 2nd harmonic 532 nm (120 microsecond(s) duration pulse- 1J max per-pulse) wavelengths, multi-articulated seven mirrors beam guiding device, 20 Hz repetition rate. This lets shots with 600 mJ max energy per pulse and 100 MW peak power per-pulse with a very low beam divergence, 0.5 mrad at full angle; a transverse fast flow 2.5 kW CO₂ laser.

Citation Download Citation

Giuseppe Daurelio, Giuseppe Chita, and Massimo Cinquepalmi "New laser surface treatments: cleaning, derusting, deoiling, depainting, deoxidizing, and degreasing", Proc. SPIE 3097, Lasers in Material Processing, (18 August 1997); https://doi.org/10.1117/12.281099

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