Forces and Chip Morphology of Nickel-Based Superalloy Inconel 718 during High Speed Grinding with Single Grain

Single-grain grinding test plays an important part in studying the high speed grinding mechanism of materials. In this paper, a new experimental system for high speed grinding test with single diamond grain is presented. The differences of surface topography and chip morphology of Inconel 718 machin...

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Bibliographic Details
Published in:Key engineering materials 2013-10, Vol.589-590, p.209-214
Main Authors: Xu, Jiu Hua, Zhao, Jia Yan, Yang, Lu, Fu, Yu Can, Tian, Lin
Format: Article
Language:English
Subjects:
Chips
Diamond machining
Grains
High speed
Morphology
Nickel base alloys
Superalloys
Topography
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Summary:Single-grain grinding test plays an important part in studying the high speed grinding mechanism of materials. In this paper, a new experimental system for high speed grinding test with single diamond grain is presented. The differences of surface topography and chip morphology of Inconel 718 machined by single diamond grain and single CBN grain were evaluated. The grinding forces and corresponding maximum undeformed chip thickness were measured under different grinding speeds. The chips, characterized by crack and segment band feature like the cutting segmented chips, were collected to study the high speed grinding mechanism of nickel-based superalloy. The results show that the grinding speed has an important effect on the forces and chip formation, partly due to the temperature variation. As the speed increases, the groove surface becomes smoother.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.589-590.209