In ultra-precision machining, the accuracy of a workpiece can be generally improved by
surface measurement and compensation machining. Since on-machine surface …

On-machine measurement (OMM) involves the interruption of the machining process and
the subsequent measurement of the workpiece without its removal from the machining tool …

Ultra-precision grinding of large-scale free-form optics made of hard brittle material is faced
with several thorny problems, such as the grinding process is complex, hard to estimate the …

The continuing evolution of ultraprecision machining places an increasing need to perform
surface measurement in the manufacturing environment. Development of on-machine …

The aspheric parabolic mirror is used extensively; however, its surface measuring requires
high speed, high precision, and online detection. Non-contact laser displacement sensor …

A main-push propeller blade (MPPB) with a free-form surface has great volume and weight,
severe casting deformation and pore shrinkage, and loading and unloading difficulties. It is …

This paper describes a comparison of the mechanical structures (a double-sided beam and
a cantilever beam) of a probe in a tool edge profiler for the measurement of a micro-cutting …

Aspheric lens is widely used in many fields of industry. Aspheric lens can be fabricated by
lens molding method such as plastic injection molding and hotcompression molding …

Large aspheric mirrors with diameter over 200 mm are widely used in space communication
system, large-scale astronomical telescope and X-ray facilities. However the measurement …