Dedicated drill design for reduction in burr and delamination during the drilling of composite materials

被引：34

作者：

Sugita, Naohiko ^{[1
]}

Shu, Liming ^{[1
]}

Kimura, Katsuyo ^{[2
]}

Arai, Giichi ^{[2
]}

Arai, Koichi ^{[2
]}

机构：

[1] Univ Tokyo, Sch Engn, Tokyo, Japan

[2] BICTOOL Co Ltd, Tottori, Japan

来源：

CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2019年 / 68卷 / 01期

关键词：

Drilling; Composite material; Burr and delamination; CFRP;

D O I：

10.1016/j.cirp.2019.04.094

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the drilling of composite materials such as carbon fiber reinforced plastic, burrs and delamination occur during machining. This study proposed a design of a drill tool with a shape that suppresses burrs and delamination during the drilling of composite materials. The tool shape (tip, groove, land, etc.) is determined, and a nick shape that cuts off chips and reduces heat generation is adopted. A finite element analysis and an experimental evaluation involving 4600 holes were conducted. The maximum errors in the hole diameter and roundness were 15 mu m and 0.016, respectively. Further, the maximum burr height was observed to be 80 mu m or less, and delamination was not observed in the experiment. (C) 2019 CIRP. Published by Elsevier Ltd. All rights reserved.

引用

页码：89 / 92

页数：4

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