Release Time:2019-03-13  Hits:

Indexed by:Journal Article

Date of Publication:2016-10-02

Journal:MATERIALS AND MANUFACTURING PROCESSES

Included Journals:Scopus、EI、SCIE

Volume:31

Issue:13

Page Number:1692-1699

ISSN:1042-6914

Key Words:Alloys; Chips; Curve; Inconel; Machining; Milling; Parameters; Roughness; Surface

Summary:Machining technology for nickel-based alloy Inconel 718 is a hotspot and difficult problem in industrial fields and the high-speed milling (HSM) shows obvious superiority in difficult-to-process material machining. As the machining parameters are crucial in processing of Inconel 718 and the study of chip is important in metal cutting, there is an urgent need for deep research into the machining parameter optimization based on chip variation in HSM for Inconel 718 curved surface, so as to further increase the productivity of Inconel 718 in aerospace field. Regarding Inconel 718 curved surface, an experimental study about the machining parameter optimization based on chip variation in HSM is conducted. The relationship between chip shape and machining parameters is studied, and the roughness is measured and discussed for the machined curved surface. Results indicate that the chip area relates to geometric feature of curved surface, the optimal range for spindle speed is from 9000 to 11000rpm based on chip variation, the feed per tooth should be large in case that condition permitted, and the cutting depth can be selected according to other constraint conditions. This study is significant for improving the machining quality and efficiency of Inconel 718 curved surface.