Improving the profile integrity of germanium fresnel lenses in micro grooving processes

Jiwang Yan; Yufeng Fan; Tsunemoto Kuriyagawa; Nobuhito Yoshihara

Improving the profile integrity of germanium fresnel lenses in micro grooving processes

Jiwang Yan, Yufeng Fan, Tsunemoto Kuriyagawa, Nobuhito Yoshihara

Research output: Contribution to conference › Paper › peer-review

Abstract

Ductile mode micro grooving with a sharply-pointed diamond tool under three-axis numerical control can fabricate precise micro Fresnel structures on single crystal germanium. However, in a practical durable machining process, the tool tip will wear gradually and finally produce micro chippings at the edges of the micro prisms. In the present paper, a new tool path is proposed in order to prevent the occurrence of micro chippings. The micro fractures occurred in machining can be completely removed during the following cut, thus leave the micro prisms damage free. Experimental results have demonstrated that the proposed method can significantly improve the profile integrity of a Fresnel lens and enable longer effective tool life.

Original language	English
Publication status	Published - 2007 Dec 1
Externally published	Yes
Event	4th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2007 - Fukuoka, Japan Duration: 2007 Nov 7 → 2007 Nov 9

Other

Other	4th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2007
Country/Territory	Japan
City	Fukuoka
Period	07/11/7 → 07/11/9

Keywords

Ductile machining
Fresnel lens
Germanium
Micro groove
Tool wear
Ultraprecision cutting

ASJC Scopus subject areas

Industrial and Manufacturing Engineering

Cite this

@conference{be57e011910c4cb3bd8e5b3e79e1f95b,

title = "Improving the profile integrity of germanium fresnel lenses in micro grooving processes",

abstract = "Ductile mode micro grooving with a sharply-pointed diamond tool under three-axis numerical control can fabricate precise micro Fresnel structures on single crystal germanium. However, in a practical durable machining process, the tool tip will wear gradually and finally produce micro chippings at the edges of the micro prisms. In the present paper, a new tool path is proposed in order to prevent the occurrence of micro chippings. The micro fractures occurred in machining can be completely removed during the following cut, thus leave the micro prisms damage free. Experimental results have demonstrated that the proposed method can significantly improve the profile integrity of a Fresnel lens and enable longer effective tool life.",

keywords = "Ductile machining, Fresnel lens, Germanium, Micro groove, Tool wear, Ultraprecision cutting",

author = "Jiwang Yan and Yufeng Fan and Tsunemoto Kuriyagawa and Nobuhito Yoshihara",

year = "2007",

month = dec,

day = "1",

language = "English",

note = "4th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2007 ; Conference date: 07-11-2007 Through 09-11-2007",

}

TY - CONF

T1 - Improving the profile integrity of germanium fresnel lenses in micro grooving processes

AU - Yan, Jiwang

AU - Fan, Yufeng

AU - Kuriyagawa, Tsunemoto

AU - Yoshihara, Nobuhito

PY - 2007/12/1

Y1 - 2007/12/1

N2 - Ductile mode micro grooving with a sharply-pointed diamond tool under three-axis numerical control can fabricate precise micro Fresnel structures on single crystal germanium. However, in a practical durable machining process, the tool tip will wear gradually and finally produce micro chippings at the edges of the micro prisms. In the present paper, a new tool path is proposed in order to prevent the occurrence of micro chippings. The micro fractures occurred in machining can be completely removed during the following cut, thus leave the micro prisms damage free. Experimental results have demonstrated that the proposed method can significantly improve the profile integrity of a Fresnel lens and enable longer effective tool life.

AB - Ductile mode micro grooving with a sharply-pointed diamond tool under three-axis numerical control can fabricate precise micro Fresnel structures on single crystal germanium. However, in a practical durable machining process, the tool tip will wear gradually and finally produce micro chippings at the edges of the micro prisms. In the present paper, a new tool path is proposed in order to prevent the occurrence of micro chippings. The micro fractures occurred in machining can be completely removed during the following cut, thus leave the micro prisms damage free. Experimental results have demonstrated that the proposed method can significantly improve the profile integrity of a Fresnel lens and enable longer effective tool life.

KW - Ductile machining

KW - Fresnel lens

KW - Germanium

KW - Micro groove

KW - Tool wear

KW - Ultraprecision cutting

UR - http://www.scopus.com/inward/record.url?scp=84883398575&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84883398575&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84883398575

T2 - 4th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2007

Y2 - 7 November 2007 through 9 November 2007

ER -

Improving the profile integrity of germanium fresnel lenses in micro grooving processes

Abstract

Other

Keywords

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this