Study on the Machinability Characteristics of Superalloy K424 during High Speed Turning

Abstract:

Article Preview

The present paper is an attempt of an experimental investigation on the machinability of superalloy, K424 during high speed turning using different ceramic inserts under different cutting speed and cooling/lubricating condition. The effect of machining parameters on the tool wear was examined through SEM micrographs.The experimental results show that, round Al2O3+SiCW KY4300R ceramic insert shows the best cutting performance in cutting the superalloy K424 , and it should be used in rather higher speed. Cold nitrogen gas is not recommended when machining nickel-based alloy with ceramic tools. SEM and EDS analysis shows that the ceramic tool was severely controlled by tool nose and depth-of-cut notch wear, followed by flaking and chipping.

Info:

Periodical:

Main Theme:

Edited by:

Chengyong Wang, Ning He, Ming Chen and Chuanzhen Huang

Pages:

636-641

DOI:

10.4028/www.scientific.net/AMR.188.636

Citation:

M.H. Xiao et al., "Study on the Machinability Characteristics of Superalloy K424 during High Speed Turning", Advanced Materials Research, Vol. 188, pp. 636-641, 2011

Online since:

March 2011

Export:

Price:

$38.00

[1] P. Warburton. Problems of Machining Nickel-Based Alloys. Iron and Steel Institute. 1967: 151~160.

[2] L. Li, N. He. High speed cutting Inconel 718 with coated and ceramic inserts. Journal of Materials Processing Technology. 2002, 129: 127~130.

DOI: 10.1016/s0924-0136(02)00590-3

[3] China Aeronautical Materials Handbook Editorial Board. China Aeronautical Materials Handbook (Volume 2) [M]. Beijing: Standards Press of China, (1989).

[4] E.O. Ezugwu Z.M. Wang, et al. The machinability of nickel-based alloys; a review. Journal of Materials Processing Technology. 1999, 86: 1~16.

[5] M.H. Xiao, N. He, et al. Experimental Studies On Notch Wear for High Speed Machining of Nickel-based Superalloy with Ceramic Tools. China Mechanical Engineer, 2008, 19 (10): 1188~1192.

[6] M.H. Xiao, N. He, et al. Modeling Notch Wear of Ceramic Tool in High Speed Machining of Nickel-based Superalloy. Journal of Wuhan University of Technology(Materials Science Edition), 2010, 1: 78~83.

DOI: 10.1007/s11595-010-1078-8

[7] X. Ai. High Speed Machining Technology. [M]. Beijing: National Defence Industry Press, 2003, p.104.

[8] Y. Su, N. He et al. An experimental investigation of effects of cooling/lubrication conditions on tool wear in high-speed end milling of Ti-6Al-4V. wear, 2006. 1: 1~7.

DOI: 10.1016/j.wear.2006.01.013

[9] N. He. The Oretical and Application Researches on High Efficiency Machining of Difficult-to-machining Materials. [D]PhD Thesis. Nanjing, Nanjing University of Aeronautics and Astronautics. (1996).

[10] M.H. Xiao, N. He, et al. Wear Mechanisms of Ceramic Inserts in Machining Nickel-Based Superalloy .  Journal of Southwest Jiaotong University(English Edition). 2010, 1: 59~64.

In order to see related information, you need to Login.