Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25874
Title: An integrated form characterization method for measuring ultra-precision freeform surfaces
Authors: Cheung, CF 
Li, HF
Lee, WB 
To, S 
Kong, LB
Keywords: Advanced optics
B-spline
Form characterization
Freeform surface
Ultra-precision machining
Issue Date: 2007
Publisher: Elsevier
Source: International journal of machine tools and manufacture, 2007, v. 47, no. 1, p. 81-91 How to cite?
Journal: International journal of machine tools and manufacture 
Abstract: Ultra-precision freeform surfaces are complex surfaces that possess non-rotational symmetry. Currently, there is a lack of definitive international standards and techniques for the characterization of form accuracy and surface quality of ultra-precision freeform surfaces. This paper presents an integrated form characterization method (IFCM) to measure the form accuracy of ultra-precision freeform surfaces. The IFCM is developed based on the five-point pre-fixture, dual cubic B-spline and an iterative precision adjustment algorithm with coordinate transfer. To verify the capability of the proposed method, a series of computer simulation and measurement experiments were undertaken. The results indicate that the IFCM can realize the precise alignment of measured and normal surfaces with accuracy in nanometer range which provides adequate base for good form characterization of ultra-precision freeform surfaces with form accuracy down to below sub-micrometer range.
URI: http://hdl.handle.net/10397/25874
ISSN: 0890-6955
EISSN: 0890-6955
DOI: 10.1016/j.ijmachtools.2006.02.013
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

30
Last Week
0
Last month
1
Citations as of Oct 11, 2017

WEB OF SCIENCETM
Citations

22
Last Week
0
Last month
1
Citations as of Oct 16, 2017

Page view(s)

48
Last Week
1
Last month
Checked on Oct 16, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.