Toolpath planning for CNC machining of hub surface of blisk. Issue 1 (1st August 2022)

• Record Type: Journal Article
• Authors: Zhu, Yu; Xiao, Shihong; Wang, Wenli
• Is Part Of: Journal of physics. Volume 2336:Issue 1(2022)
• Publication Date: 2022-08-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/2336/1/012024
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: This paper presented a toolpath planning and generating method for machining a hub surface of a blisk. This method can be used to generate smooth and gradually changing toolpaths and avoid an undercut on hub. In this paper, the hub surface has been defined with a u θ -parametric region. Then character curves, character points and extension curves have been solved in the u θ -parametric region. These curves have been employed to define boundaries of a machining region on the hub surface. The machining region parted by the boundaries has been mapped into a ws-parametric region which was applied to plan toolpaths. The method was employed to mill the hub surface of a blisk, and the results indicated that the profile error of the hub was within ±0.02mm after machining. This method has a significant value of practical applications, and the machining precision can satisfy the designing requirement of a blisk.