Share Email Print
cover

Proceedings Paper

Dependency between removal characteristics and defined measurement categories of pellets
Author(s): C. Vogt; M. Rohrbacher; R. Rascher; S. Sinzinger
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Optical surfaces are usually machined by grinding and polishing. To achieve short polishing times it is necessary to grind with best possible form accuracy and with low sub surface damages. This is possible by using very fine grained grinding tools for the finishing process. These however often show time dependent properties regarding cutting ability in conjunction with tool wear. Fine grinding tools in the optics are often pellet-tools. For a successful grinding process the tools must show a constant self-sharpening performance. A constant, at least predictable wear and cutting behavior is crucial for a deterministic machining. This work describes a method to determine the characteristics of pellet grinding tools by tests conducted with a single pellet. We investigate the determination of the effective material removal rate and the derivation of the G-ratio. Especially the change from the newly dressed via the quasi-stationary to the worn status of the tool is described. By recording the achieved roughness with the single pellet it is possible to derive the roughness expect from a series pellet tool made of pellets with the same specification. From the results of these tests the usability of a pellet grinding tool for a specific grinding task can be determined without testing a comparably expensive serial tool. The results are verified by a production test with a serial tool under series conditions. The collected data can be stored and used in an appropriate data base for tool characteristics and be combined with useful applications.

Paper Details

Date Published: 2 September 2015
PDF: 8 pages
Proc. SPIE 9573, Optomechanical Engineering 2015, 95730N (2 September 2015); doi: 10.1117/12.2189987
Show Author Affiliations
C. Vogt, Technische Hochschule Deggendorf (Germany)
M. Rohrbacher, Technische Hochschule Deggendorf (Germany)
R. Rascher, Technische Hochschule Deggendorf (Germany)
S. Sinzinger, Technische Univ. Ilmenau (Germany)


Published in SPIE Proceedings Vol. 9573:
Optomechanical Engineering 2015
Alson E. Hatheway, Editor(s)

© SPIE. Terms of Use
Back to Top