Page 30 - AMTDC Annual Report 2019-20flipbook

UPMMC: Venturing into Advanced 5-axis Ultra-precision Micro-machining

Capabilities

Scope/ Objective:

1. To design and develop ultra-precision 5 axes machining
centre to meet the need of micro-machining for medical
components like dental and bone implants, watch and
jewellery manufacturing industry and precision aerospace Achieving Highest Precision
industry components, electronics component manufacturing of 0-1 micron
and institute R&D purposes.

2. To enhance the accuracy level from the current 5-10 Ultra-Precision Micro-machining Centre
microns to the next higher precision level of 0-1 microns of is a CNC-controlled 5-axes machining centre
the precision micro-machining centre built by our industry that is specially developed for the demands
partner MTAB to cater to the market needs and demands of of micro-machining in numerous industries.
high level of precision besides competing with technologically While most Machine shops offer 3 or 4-axis
advanced countries.
milling services, AMTDC-CoE is confident
about advanced 5-axes micro-machining

Project Overview: capabilities. In combination with the rotary
and swiveling unit, the efficient computer
numerical control (CNC) enables the
The precision of the machine is controlled by the
following factors and has been accounted for through machining of 2.5D, 3D and freeform surfaces
different approaches. In the first phase of geometric & by the use of up to 5 simultaneous axes of
kinematic error mapping, volumetric error model has been motion. According to the selection of ‘tools’
developed and geometric & kinematic error parameter have and the process parameters, a wide variety of
been derived to minimize propagation of error. The error materials can be machined to the highest
limits as obtained are used in assembly of machine. precision of 0-1 micron.
Next, finite element analysis (FEA) and experimental
modal analysis have been performed to check the static &
dynamic characteristics of the system. The experimental
analysis with casting filled with polymer concrete showed
improvement in dynamic performance with improved
stiffness & damping.

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AMTDC Annual Report | 2019-20