巻号一覧
23 巻 (1989 - 1990)
- 46 号 p. 40-
- 45 号 p. 1-
23 巻, 45 号
選択された号の論文の3件中1～3を表示しています
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陽極微小部の電解反応の検討釜田 浩, 木本 保夫, 中川 雅之, 垣野 義昭1989 年 23 巻 45 号 p. 1-12
発行日: 1989/12/20
公開日: 2010/03/12
ジャーナル フリーThis paper deals with an experimental analysis of micro electrolytic current with abrasion by the abrasive grains. The abrasion by the abrasive grain removes the passivation layer on anodic electrode surface. This action causes the pulsed electrolytic current. The authors experimented with the Electrolytic-Abrasive Combined Machining on micro anodic workpiece. The results obtained are as follows:
1) The number of pulses of pulsed electrolytic current gives the number of abrasion by abrasive grains.
2) The working current of Electrolytic-Abrasive Combined Machining depends on the peak of pulsed electrolytic current.抄録全体を表示PDF形式でダウンロード (1893K) -
武藤 一夫, 藤井 保明, 久保 陞, 二村 昭二1989 年 23 巻 45 号 p. 13-21
発行日: 1989/12/20
公開日: 2010/03/12
ジャーナル フリーThis paper describes the development of a ceramics carbon composite-based electrode for high speed and high accuracy EDM. To manufacture the composite electrode, rare coke, silicon carbide and Boron carbide are mixed by a specially desighned ball mill and then molded by a CIP without using binder. Subsequently the molded mixture is sintered at a high temperature of 2000°C or over. The sintered ceramics particles are uniformly dispersed into a graphite matrix.
The new ceramics carbon composite electrode is superior to conventional graphite-based electrodes when used in electrical discharge machining in the following : (1) Higher processing speed, (2) a smooth surface can be machined, and (3) a precise shape can be processed.抄録全体を表示PDF形式でダウンロード (8083K) -
第1報 ワイヤ放電加工の断線原因について小原 治樹, 奥山 裕二, 常盤 泰信, 鈴木 秀典1989 年 23 巻 45 号 p. 22-28
発行日: 1989/12/20
公開日: 2010/03/12
ジャーナル フリーLocal concentration of discharging during vertical EDM machining causes low machining speed, poor surface on workpiece and growth of carbon which may cause firing, also it causes wire breakdown on WIRE EDM. So that controlling to avoid local discharging concentration during machining are most important control on EDM. But these direct control was not made until now because the detection of discharging location during machining was difficult.
In this 1st report we present the results which was obtained by measuring discharging position for wire EDM just before wire breaks down. Results show that the local concentration of discharging causes the wire breakdown.抄録全体を表示PDF形式でダウンロード (6255K)
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