Since 1963
ARTICLE
A tool orientation smoothing method for five-axis machining to avoid singularity problems
1
School of Mechanical Engineering and Automation, Beihang University, Beijing, China
2
Collaborative Innovation Center for Advanced Aero-Engine, Beihang University, Beijing, China
3
Dongchang College of Liaocheng University, Liaocheng
4
AECC South Industry Company Limited, ZhuZhou, China
Submission date: 2022-05-29
Final revision date: 2022-10-16
Acceptance date: 2022-10-17
Online publication date: 2023-01-03
Publication date: 2023-01-30
Corresponding author
Journal of Theoretical and Applied Mechanics 2023;61(1):89-102
KEYWORDS
TOPICS
ABSTRACT
In numerically controlled grinding of aeroengine blades, a sharp change in a rotating shaft
caused by a singular zone greatly reduces grinding precision and quality. This paper proposes
an algorithm to optimize the tool-path that combines optimization of the C-axis rotation
angle, a modification to the tool orientation and adjustments to the tool position by taking
a four-array machine tool with two rotational axes (B-axis and C-axis) as an example. The
algorithm was verified using VERICUT software, furthermore, in machining experiments,
the rotation amplitudes of the rotary axis in singular areas was effectively reduced, which
ensured grinding quality of blades.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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