Precision cutting of glassy polymers: influence of aging on the cutting process

G.P.H. Gubbels, F.L.M. Delbressine, L.E. Govaert, P.H. Schellekens

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)

Abstract

This paper presents the results of an experimental study on the influence of aging on the cutting mechanics of glassy polymers. Polystyrene (PS), a glassy polymer, typically behaves brittle when subjected to a stress, it can be made ductile by rejuvenation. It was expected that PS would show a different cutting behaviour when it would be aged or rejuvenated. To investigate this two different molecular weight PS grades were used. Both aged and (mechanically) rejuvenated samples were made from each grade and cut. Cutting forces, chip morphology and surface quality were investigated. Although the chips showed no differences in brittleness and ductility, the measured cutting forces indicated that there is a difference between aged and rejuvenated PS. Also an interesting difference in cutting forces between the two PS grades was found. Investigation of the surface quality of the PS samples showed that the aged samples have smoother surfaces than the rejuvenated samples.It can be concluded that aging does have effect on the cutting mechanics and the obtained surface roughness.
Original languageEnglish
Title of host publicationOptical fabrication, testing, and metrology : 30 September - 3 October 2003, St. Etienne, France
EditorsR. Geyl
Place of PublicationBellingham
PublisherSPIE
Pages111-121
ISBN (Print)0-8194-5136-3
DOIs
Publication statusPublished - 2004
Eventconference; Optical fabrication, testing and metrology; 2003-09-30; 2003-10-03 -
Duration: 30 Sep 20033 Oct 2003

Publication series

NameProceedings of SPIE
Volume5252
ISSN (Print)0277-786X

Conference

Conferenceconference; Optical fabrication, testing and metrology; 2003-09-30; 2003-10-03
Period30/09/033/10/03
OtherOptical fabrication, testing and metrology

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