Laser surface conditioning of semimetallic friction materials
Abstract
Surface conditioning is one way of reducing the duration and magnitude of the initial transients occurring in friction materials. In developing a laser searing system for semimetallic materials the changes occurring on the surface were characterized as a function of the power density. Excessive power melted the surface of the lining and produced an undesirable microstructure, while too little power did not produce the changes desired. The changes produced by laser searing were found to be similar to the changes produced by other types of surface conditioning. The friction and wear performance was studied for linings seared with different power densities. Laser searing primarily increased the low speed, low temperature, pre-burnish friction level. The amount of increase was proportional to the amount of searing. After burnishing the searing did not effect the friction level of the lining. Excessive power densities produced undesirable surface microstructures and persistent rotor scoring.
- Authors:
- Publication Date:
- OSTI Identifier:
- 5499401
- Report Number(s):
- CONF-860263-
- Resource Type:
- Conference
- Resource Relation:
- Conference: Society of Automotive Engineers international congress and exposition, Detroit, MI, USA, 24 Feb 1986
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; SEMIMETALS; FRICTION; LASER-RADIATION HEATING; MICROSTRUCTURE; SURFACE TREATMENTS; WEAR; COMPARATIVE EVALUATIONS; LEADING ABSTRACT; LINERS; LINING PROCESSES; MATERIALS TESTING; MEETINGS; POWER DENSITY; ROTORS; SURFACE PROPERTIES; TEMPERATURE EFFECTS; ABSTRACTS; CRYSTAL STRUCTURE; DOCUMENT TYPES; ELEMENTS; HEATING; PLASMA HEATING; TESTING; 360601* - Other Materials- Preparation & Manufacture; 360603 - Materials- Properties; 360602 - Other Materials- Structure & Phase Studies
Citation Formats
Patten, D T. Laser surface conditioning of semimetallic friction materials. United States: N. p., 1986.
Web.
Patten, D T. Laser surface conditioning of semimetallic friction materials. United States.
Patten, D T. 1986.
"Laser surface conditioning of semimetallic friction materials". United States.
@article{osti_5499401,
title = {Laser surface conditioning of semimetallic friction materials},
author = {Patten, D T},
abstractNote = {Surface conditioning is one way of reducing the duration and magnitude of the initial transients occurring in friction materials. In developing a laser searing system for semimetallic materials the changes occurring on the surface were characterized as a function of the power density. Excessive power melted the surface of the lining and produced an undesirable microstructure, while too little power did not produce the changes desired. The changes produced by laser searing were found to be similar to the changes produced by other types of surface conditioning. The friction and wear performance was studied for linings seared with different power densities. Laser searing primarily increased the low speed, low temperature, pre-burnish friction level. The amount of increase was proportional to the amount of searing. After burnishing the searing did not effect the friction level of the lining. Excessive power densities produced undesirable surface microstructures and persistent rotor scoring.},
doi = {},
url = {https://www.osti.gov/biblio/5499401},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1986},
month = {Wed Jan 01 00:00:00 EST 1986}
}