Manufacturing Division
Research Facilities - Advanced Manufacturing
Laboratory
High Speed CNC Machining Centres
High speed machining which is gaining popularity in the industry because of
its ability to machine hard material with high accuracy and excellent surface finish.
The lead time for machining is also reduced, and tool life can potentially be extended
as pick feed is small. The high speed machining centres in the laboratory are used
extensiviely for research into the process improvement of high speed machining. The
high speed machining centres in the laboratory are list below:
- Makino V55 – This machine has a spindle speed of 30,000 rpm and feedrate of up
to 50 m/min. Its motion is controlled by the FANUC 16MB controller with Super
Geometric Intelligence for high speed contour control which is necessary for
excellent accuracy and finish. Spindle life for the machine is maintained by using
core cooling with refrigerated oil.
- Mori Seiki SV-500 – The machine has a spindle speed of 20,000 rpm and a
feedrate of up to 16 m/min. Its motion is controlled by the FANUC 18I controller
with intelligent contour control function which is necessary for excellent accuracy
and finish. The cooling for the spindle is by means of refrigerated oil circulating
through an oil jacket around the spindle. ( Note : This machine is made available by
the courtesy of Mori Seiki of Japan in a special arrangement with the National
University of Singapore).
5-Axis Machining Centre
The 5-axis machining centre is used for studies into generation of 5-axis
CNC codes, process studies, machineability studies and effects of cooling media
during cutting. The 5-axis machining centre in the laboratory is listed below:
Deckel Maho DMU 50V- This machine has a spindle speed of 8000 rpm (can be upgraded
to 15,000 rpm) and feedrate of up to 10 m/min. The machine has an open-architecture
PC-based control with a DMG MillPlus controller. It has three linear axes, a rotary
axis and a swivelling axis (inclined at 45 degree to the horizontal).
CNC Lathe
The lathe is used for machining studies in turning operations. The lathe in
the laboratory is listed below:
- Mori Seiki SL-35 slant bed lathe – The machine is of the slant bed type which can
cater for a maximum turning diameter of 420mm This spindle which is powered by a 30
HP motor has a maximum speed of 2500 rpm and feedrate of up to 12m/min. ( Note : This
machine is made available by the courtesy of Mori Seiki of Japan in a special arrangement with the National University of
Singapore).
Other Supporting Equipment
Some important equipment to support the research activities in the laboratory
would include the following:
- Unigraphics NT Workstation – this is for developmental projects and also for
generation of CNC codes for high speed machining and the 5-axis machining.
- A HP laser interferometer – this is for machine diagnostics and performance
study.
- A high speed data acquisition system - for high acquisition of data for tool
condition monitoring.
- Tool-maker microscope – for measurement of tool wear in machineability studies
and tool condition monitoring.
- Dynamometers – a wide range of dynamometers for cutting force measurement for
tool condition monitoring.
The Advanced Manufacturing Laboratory
MAKINO V55 High Speed Machining
Centre
Deckel Maho DMU 50V 5-Axis Machining Centre
Mori Seiki SV-500 High Speed
Machining Centre (LEFT) and Mori Seiki SL-35 Slant Bed Lathe (RIGHT)
NT Workstation With Unigraphics
CAD/CAM Software
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Last date of modification: 30 July 2001
Maintained by: Dr S K Ong