Machining vibration and methods of their measurement

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00536111" target="_blank" >RIV/61389021:_____/19:00536111 - isvavai.cz</a>

Result on the web

<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11385/2542816/Machining-vibration-and-methods-of-their-measurement/10.1117/12.2542816.short?SSO=1" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11385/2542816/Machining-vibration-and-methods-of-their-measurement/10.1117/12.2542816.short?SSO=1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2542816" target="_blank" >10.1117/12.2542816</a>

Result language

angličtina

Original language name

Machining vibration and methods of their measurement

Original language description

Today, aspherical elements have become an indispensable part of modern high-precision optical assemblies. Several kinds of defects arise during their manufacture. As far as very precise aspherical surfaces are concerned, mid-spatial frequencies are probably the most important issue. This type of imperfection fills the gap between shape (low-spatial frequencies) and microroughness (high-spatial frequencies). A smaller part of these defects arise during polishing, however, more of them are generated during the grinding process. Due to the interference of different controlling frequencies in the machine and imperfections in the constructional solution of the grinding machine, defects occur on the optical surface, which deform it. The periods of these defects usually lie in an interval of 0.5 to 10 mm, depending on the parameters of the machining process. To prevent the generation of these structures, a comprehensive measurement of the sources and transmission of vibrations was realised using the measuring device VibXpert II. The measurement was made on the grinding machine Optotech MCG 100 CNC. Several simulations of different types of processes were realised and the measurement was also subsequently performed during a real grinding process of aspherical optical surfaces. The data acquired from the measurement of vibrations were mathematically processed in frequency space. The experiment revealed several reasons for these defects.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

SPIE: Optics and Measurement 2019 International Conference

ISBN

978-1-5106-3548-7

ISSN

—

e-ISSN

—

Number of pages

12

Pages from-to

"Roč. 11385 (2019)"

Publisher name

SPIE

Place of publication

Bellingham

Event location

Liberec

Event date

Oct 8, 2019

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000529302400018