Work

In Situ Machine Tool Walking on Large Workpieces: Improvement of Machining Accuracy by Compensating Orientation Dependent Position Error

Year: 2025

Type: article

Abstract: For manufacturing and repair operations involving large parts, such as aircraft components and wind turbines, in situ machine tools have been recognized as an effective solution. This study introduces a new design concept for a machine tool capable of walking on large workpieces, along with a geometrical error model that independently accounts for the effects of gravitational load. Its distinctive serial kinematic mechanism provides both high flexibility for walking and a large work envelope for machining. The feasibility of this design concept is validated through evaluation tests on mobility and cutting, demonstrating the accuracy typically required in aerospace manufacturing.

Source: International Journal of Precision Engineering and Manufacturing-Smart Technology

DOI: 10.57062/ijpem-st.2024.00192

Authors: Chang-Ju Kim, Dae-Hyun Kim, Seung-Kook Ro

Institution: Korea Institute of Machinery & Materials

Language: English

Topic: Advanced Measurement and Metrology Techniques

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: bronze

Funder: Korea Institute of Machinery and Materials