Open AccessTool Path Generation for Five-Axis Controlled Machining of Free-Form Surfaces Using a Barrel Tool Considering Continuity of Tool Postures
Author(s) -
Tomonobu Suzuki,
Ken Okamoto,
Koichi Morishige
Publication year - 2021
Publication title -
international journal of automation technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.513
H-Index - 18
eISSN - 1883-8022
pISSN - 1881-7629
DOI - 10.20965/ijat.2021.p0885
Subject(s) - machining , machine tool , ball (mathematics) , mechanical engineering , tool path , numerical control , interference (communication) , barrel (horology) , end mill , engineering , radius , computer science , cutting tool , engineering drawing , geometry , mathematics , channel (broadcasting) , electrical engineering , computer security
This study aims to improve the efficiency of free-form surface machining using a five-axis controlled machine tool and a barrel tool. The barrel tool has cutting edges with curvatures smaller than its radius; thus, its pick feed width is larger than that of a conventional ball end mill with the same tool radius. Therefore, the machining efficiency can be improved. Barrel tools can be effectively utilized in a five-axis controlled machine tool. When five-axis controlled machining, tool interference may occur, which should be avoided during actual machine operation. Additionally, a sudden change in tool posture adversely affects the quality of the machined surface. This paper proposes a method to obtain the cutting points that render cusp heights below the target value. A method for generating an interference-free tool path, in which the tool posture changes continuously, is also proposed. The usefulness of the developed methods was confirmed through machining simulations.