In this work we demonstrate how absolute length measurements by interferometry, as used for regular gauge block
calibration, can be applied to measure the dimensional drift behavior of connections joined by gluing or screwing and
how these joining techniques are influenced by thermal treatment. While it is common to investigate the intrinsic
stability of material samples by repeated length measurements, there exist growing demands in precision engineering to
characterize the stability of assemblies, i.e. of joined material pieces. In order to enable investigation of joining
techniques representative joints were fabricated by a number of methods as wringing, screwing and gluing. By using
gauge block shaped samples as joining parts parallelism and flatness could be achieved which is needed for
interferometric length measurements. The stability of the joints has been investigated longitudinally and laterally to the
connection interface, and also mutual tilting of the parts was detected by analysis of the phase topographies. With the use
of sample joints, the behavior of connection elements used in ultrahigh-precision instruments can now be examined on
an accuracy level of about one nanometer. Results of approximately one year of observation show that screwed joints do
not exhibit a significant change of length or orientation. They also did not show response to temperature variations of
±10°C, which is different for adhesive joints where dimensional changes of up to 100 nm were observed.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.