Low Environmental Impact Machining Processes of Free Cutting Austenitic Stainless Steels without Lead Addition

Abstract:

Environmental protection is a growing concern for many industries today. This paper shows manufacturing environmental performance improvement for free cutting steel products. Inclusions have the characteristics of sulfur and bismuth in free cutting austenitic stainless steels without lead addition. Machinable additives lead to improved chip breakage, and thus reduced tool wear. The machinability of free cutting austenitic stainless steels without lead addition is much better than that of conventional austenitic stainless steel. Bismuth can replace lead because lead is a harmful factor for environment and machine operators' health. The reduction of environmentally harmful substances such as lead was performed. A feasible combination of free-cutting additives should yield a stainless steel product with acceptable machining and mechanical properties.

• Periodical: Advanced Materials Research (Volumes 512-515)
• Pages: 1923-1926
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.512-515.1923
• Online since: May 2012
• Authors: Zhuang Li, Di Wu, Wei Lv
• Keywords: Austenitic Stainless Steel, Bismuth, Environmental Impact (EI), Lead, Machinability

References

[1] L. Leonardo, B. P. Mazzilli, S.R. Damatto and M. Saiki: Jorunal Environ mental Rasiogctivity, Vol. 102 (1992), p.906.

[2] O. D. Sullivan, M. Cotterell: J. Mater. Process. Technol., Vol. 124 (2002), p.153.

[3] C. I. Garcia, M. J. Hua and M. K. Miller: ISIJ Int., Vol. 43 (2003), p.2023.

[4] P. Reynolds, V. Block and I. Essel: Steel Research Int., Vol. 78 (2007), p.908.

[5] K. Oikawa, H. Mitsui and T. Ebata: ISIJ Int., Vol. 42 (2002), p.806.

[6] H. Kagechika: ISIJ Int., Vol. 47 (2007), p.773.