Assessment of Machining Characteristics of Austempered Ductile Iron

Ashwin Polishetty; Guy Littlefair

doi:10.4028/www.scientific.net/AMR.97-101.2036

Paper Titles

Four-High Mill with Statically Determinate Characteristics of Micro Displacement of the Components
p.2015

CFD Research on Aerostatic Bearing with Tangential Supply Holes
p.2021

Research on Plastic Rolling Forming Process of Plate-Fin by Numerical Simulations and Experiments
p.2027

SSA Based Decomposition of Tool Position Trajectory for Diamond Turning of Freeform Optical Surfaces
p.2032

Assessment of Machining Characteristics of Austempered Ductile Iron
p.2036

Influence of Radial Depth of Grinding and Finishing Process on Surface Residual Stresses in Grinding AF1410 Ultrahigh Strength Steel
p.2040

Research on Surface Roughness Prediction Model for High-Speed Milling Inclined Plane of Hardened Steel
p.2044

Cutting Forces and Tool Wear Patterns in Five-Axis Milling Fe-Based Super Alloy with Bull-Nose End Mill
p.2049

Research on Design and Application of Control System in Machine Tool Modification
p.2053

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 97-101Assessment of Machining Characteristics of...

Assessment of Machining Characteristics of Austempered Ductile Iron

Abstract:

Austempered Ductile Iron (ADI) is a modified Spheroidal Graphite Iron (SGI) produced by applying a two-stage heat treatment cycle of austenitising and austempering. The microstructure of ADI also known as “ausferrite” consists of ferrite, austenite and graphite nodules. Machining ADI using conventional techniques is often problematic due to the microstructural phase transformation from austenite to martensite. Machining trials consisted of drilling ADI-Grades900, 1050, 1200 and 1400 using inserted (TiAlN PVD coated) type drills. The cutting parameters selected were; cutting speeds [m/min] of 30 and 40; penetration rates [mm/rev] of 0.1 and 0.2; to a constant depth of 20mm. The machining characteristics of ADI are evaluated through surface texture analysis and microhardness analysis. These results indicate that microhardness is modified during machining and surface texture is improved using a cutting fluid.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 97-101)

Pages:

2036-2039

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.97-101.2036

Citation:

Cite this paper

Online since:

March 2010

Authors:

Ashwin Polishetty, Guy Littlefair

Keywords:

Austempered Ductile Iron, Machining, Microhardness Analysis, Surface Texture Analysis

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] J. R. Keough and K. L. Hayrynen, Austempered Ductile Iron- The State of the Industry in 2003, in World ADI Conference, (Ductile Iron society, Louisville, Kentucky, 2003).

DOI: 10.4271/2000-01-0764

Google Scholar

[2] K. R Brandenberg, Machining Austempered Ductile Iron (ADI), in Manufacturing Engineering, (2001).

Google Scholar

[3] M. Goldberg, G. T. Smith, J. T Berry and G. Littlefair, in 3rd International Conference on Machining & Grinding (Society of Manufacturing Engineers, Cincinati, Ohio, 1999).

Google Scholar

[4] S. Kesani, Development of austenite free Austempered Ductile cast Iron (ADI), in Material Science and Engineering, (Wayne State University, Detroit, Michigan, 2005) p.90.

DOI: 10.1016/j.msea.2006.07.051

Google Scholar

[5] K. L Hayrynen, K. R Brandenberg and J. R. Keough, AFS Transactions 02-084 (2002) 10.

Google Scholar

[6] G. T. Smith, Industrial Metrology (Springer, 2002).

Google Scholar