Tool Wear, Hole Characteristics, and Manufacturing Tolerance in Alumina Ceramic Microdrilling Process

CCUR > College of Natural Science and Engineering > College of Engineering > Department of Mechanical Engineering > journal articles > Item 987654321/24320

Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/24320

Title:	Tool Wear, Hole Characteristics, and Manufacturing Tolerance in Alumina Ceramic Microdrilling Process
Authors:	Chang, DY (Chang, Dar-Yuan) Lin, SY (Lin, Shu-Yi)
Contributors:	Dept Mech Engn
Keywords:	Ceramic microdrilling Manufacturing tolerance Taguchi's experiment Tool wear
Date:	2012
Issue Date:	2013-02-26 10:05:08 (UTC+8)
Abstract:	Microdrilling is an essential process in the electronics, aviation, and semiconductor industries. Since microdrills have low rigidness and a high aspect ratio, precise drilling parameters are required to prevent tool breakage from excessive thrust force or torque. This study implements thousand-micron grade microdrilling experiments in alumina ceramic to investigate the effects of drilling parameters on hole characteristics. Because ceramic has poor machinability, the holes must be fabricated by peck-drilling at shallow depths and continuous cooling. The drilling parameters analyzed included the spindle revolution speed, drill feed rate, peck-drilling return distance, and centering drill depth. Characteristics of the hole diameter and roundness were measured by a computer numerical control (CNC) image measurement device. The optimal parameters combination was derived by a two-stage Taguchi's experiment. This study also observes tool wear on chisel edge and generalizes manufacturing tolerance to obtain stable quality characteristics. This article presents valuable process data for thousand-micron grade microholes drilled in sintered alumina ceramic.
Relation:	MATERIALS AND MANUFACTURING PROCESSES 卷: 27 期: 3 頁數: 306-313
Appears in Collections:	[Department of Mechanical Engineering ] journal articles

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	393	View/Open

View Licence

Loading...