Development of DLC Coated Tool for Cutting of Aluminum Alloy －Influence of Deposition Condition on Cutting Characteristic－

Kazushi Minaki; Koichi Kitajima; Yu Nakahira; Masami Ohnishi; Takashi Sugimoto; Shun Kaminomura

doi:10.4028/www.scientific.net/KEM.389-390.163

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 389-390Development of DLC Coated Tool for Cutting of...

Development of DLC Coated Tool for Cutting of Aluminum Alloy －Influence of Deposition Condition on Cutting Characteristic－

Abstract:

Conventional coating tools have a high affinity for ductile materials, like aluminum alloy, so cutting chips tend to adhere to cutting edge and work material surface. Therefore, chipping is caused, and surface texture is degraded. In order to solve these problems, recently, DLC (Diamond-Like-Carbon) has been applied to coating material. In this research, it is curried out cutting of Aluminum alloy by the use of DLC coating tool, and examined influence of DLC coating conditions on cutting characteristics. So far we have been concerned with the effect of type of hydrocarbon gas (acethylene:C2H2, methane:CH4) on cutting. As a result, it is revealed that cohesion of chips decreases, and surface roughness of work material improves in the case of acethylene-DLC. On the other hand, internal stress is produced by deference in hardness between tool surface and DLC film, and which is considered cause of film peeling [1]. Therefore, we examined interlayer between DLC film and tool surface in order to relax of internal stress. As a result, it was cleared that Titanium interlayer excels in adhesion.

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Periodical:

Key Engineering Materials (Volumes 389-390)

Pages:

163-168

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.389-390.163

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Online since:

September 2008

Authors:

Kazushi Minaki, Koichi Kitajima, Yu Nakahira, Masami Ohnishi, Takashi Sugimoto, Shun Kaminomura

Keywords:

Aluminum (Al), Coated Tool, Cutting, DLC, End Miling, Nanoindentation Hardness, Plasma Chemical Vapor Deposition

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References

[1] K. Kitajima, et al.: Cutting Characteristics of Aluminum Alloy by Using DLC Coated Tool, Proc of the 7th International Symposium on Advances in Abrasive Technology, Turkey, (2004), pp.535-540.

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[2] K. Minaki, et al.: Improvement of Surface Texture of Stainless Steel by Utilizing Dry Blasting -3rd report: Effect of blasted surface texture on adhesion of plating-, Key Engineering Materials Vols. 329, (2007), pp.353-358.

DOI: 10.4028/www.scientific.net/kem.329.353

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[3] M. Ohnishi, et al.: Local Adhesion of Diamond-Like Carbon Films Coated on Substrates in a Trench-shaped Cathode, Journal of the Vacuum Society of Japan Vol. 50(5), pp.328-331.

DOI: 10.3131/jvsj.50.328

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