Early success for attempt to model robot milling dynamics

28 August 2015

Omer Faruk Sapmaz

Attempts to find a low cost, rapid method for optimising the operation of robots used for milling are achieving some early successes, researchers attending a technology update at the AMRC's Knowledge Transfer Centre heard.

Research into robot milling as an alternative to large scale CNC machines is becoming increasingly important as demand increases for flexible and reconfigurable manufacturing systems.

However, the static and dynamic deflections affecting robot systems can lead to form errors and poor surface finish, resulting in low productivity.

Omer Faruk Sapmaz, a student from the Mechanical Engineering Department at Gazi University, in the Turkish capital of Ankara, has been working on modelling the dynamics of a hexapod robot, retrofitted with a milling head at the Nuclear AMRC as part of the European Union's Erasmus Internship Mobility Programme.

He outlined how he had used Finite Element Modelling (FEM) to create a series of models of the structural dynamics of the hexapod robot used for mobile machining.

Comparing frequencies predicted by FEM with experimental results showed close correlation with one model scenario in particular.

Future research could include developing the model so that the data is produces could be used to avoid chatter, determine the safest machining position for the robot and predict tool tip Frequency Response Function (FRF).

Related News

Digital twin achieves UK-first for machine tool feedback control
27/10/2022
A UK-first in digital twin technology research to develop autonomous, self-optimising …
Award-winning Bethany a role model for young engineers
30/07/2021
Judges at the Made in Yorkshire Awards marked out AMRC project engineer Bethany Cousi …
Rolls-Royce SMR will build Britain’s next generation of nuclear power plants
10/06/2025
The University of Sheffield AMRC has welcomed news that Rolls-Royce SMR has been sele …
Access to world-class facilities at AMRC Factory 2050 made easier for SMEs with opening of new ‘reconfigurable factory’ research cell
30/08/2017
Ease of access to the world-class research and development facilities on offer at the …