巻号一覧
後続誌
27 巻, 315 号
選択された号の論文の8件中1～8を表示しています
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奥島 啓弐1961 年 27 巻 315 号 p. 191-192
発行日: 1961/04/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (440K) -
元木 幹雄, 佐藤 隆一, 橋口 清人, 徳山 赫淇1961 年 27 巻 315 号 p. 193-198
発行日: 1961/04/05
公開日: 2009/06/30
ジャーナル フリーAn erosion mechanism of the electric discharge machining process has been studied on a view-point of a cathode phenomena. The T-F theory was applied to the electron emission from a cathode in this method and the electron current density at a cathode spot was calculated from that theory and the Mckeown's relation. Then the energy distribution between the gap electrodes was found to be mainly decided by the positive ion current density at a cathode.
The electrode erosion of various materials was measured. It became clear from the results that the electrode erosion per one discharge is dependent on three elements of energy, discharging duration and its thermal property. The kind of the tool electrode materials has a relatively small effect upon machining speed while the erosion of the tool electrode is widely changed by its thermal property.
The negative half cycle of the oscillatory discharging current in a condenser discharge was rectified by using a silicon power rectifier, but the erosion ratio of electrodes was not improved so much and in some cases it became worse than that by the oscillatory current.抄録全体を表示PDF形式でダウンロード (1048K) -
西山 卯二郎, 井上 卓, 田中 示1961 年 27 巻 315 号 p. 199-204
発行日: 1961/04/05
公開日: 2009/06/30
ジャーナル フリーAlthough explosive forming, that, is high-energy and high strain rate forming Process. started as an experimental-process a couple of years ago, it has now grown to be on a production scale in several plants.
In the previous report, we confirmed the basic data concerning the explosive forming.
In this paper, we assessed the practical value of this procces based on above results. Series of experiments were made with the metal die, shown in Fig. 2, and reinforced epoxy resine dies, shown in Fig. 3, 4, and condition of explosive forrnine. accuracy and strain distribution of products were studied.抄録全体を表示PDF形式でダウンロード (1485K) -
会田 俊夫, 寺内 喜男, 小田 哲1961 年 27 巻 315 号 p. 205-211
発行日: 1961/04/05
公開日: 2010/02/16
ジャーナル フリーIn the present paper the authors calculated the effects of the inclination of gear axis on the tooth profile error.
Due to the inclination of gear axis, the measuring surface of profile is inclined to the plane of rotation. Consequently the trace of feeler is deviated from true involute curve.
The amount of this deviation was studied theoretically.
In consequence we got following results.
(1) In the measurement of spur gear, said deviation is negligible, for instance in the case of inclination angle ψ=1°, module m=4 and tooth number z=18, the maximum error s is no more than 1.1μ.
(2) In the measurement of herical gear the inclination of gear axis has to be avoided, for the said deviation is of considerable amount.抄録全体を表示PDF形式でダウンロード (926K) -
共振自動追随,定入力,定振幅装置について大平 正広, 西口 克已, 影山 陽道1961 年 27 巻 315 号 p. 212-220
発行日: 1961/04/05
公開日: 2009/06/30
ジャーナル フリーThe constitution of an ultrasonic machining apparatus and the experimental results of its abilities are described in this paper. This apparatus is controled by a feed back loop from a pick up electrode on the horn, and has the following abilities.
1) Driving frequency of the vibrator always follows automatically as the machining load varies.
2) The input power of the vibrator or the amplitude in machining time is held constant independently of the variation of machining load.抄録全体を表示PDF形式でダウンロード (1774K) -
田中 義信, 矢野 章成1961 年 27 巻 315 号 p. 221-226
発行日: 1961/04/05
公開日: 2010/02/16
ジャーナル フリー以上,常用せられる工作機械用締付けねじのうち1/2インチウイットねじについてのゆるみ試験を抵抗線ひずみ計を用いておこなつた結果,本研究の実験範囲内において次のような結論をえた。
(1)ねじ面の摩擦係数はねじ面の油を完全に取り除いた場合には一般に用いられている0.15という値より大きく0.3～0.5程度であつて,十分締め付けても実際にボルトにかかる締付けカは少なく,これがゆるみの一因とも考えられる。但し油をさした場合には0.20程度になる。
(2)ゆるみの進行は外部から加えられる衝撃エネルギの総和に比例し,締付けカに逆比例する。この関係については弾性エネルギの考えから求めた式で近似的に示しうる。
(3)ナットとボルトの有効径の差が大きい程ゆるみは顕著のようで,ボルトの有効径が同じ程度であればねじ面が粗い程ゆるみ易い。抄録全体を表示PDF形式でダウンロード (1103K) -
1961 年 27 巻 315 号 p. 227-240
発行日: 1961/04/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (2143K) -
1961 年 27 巻 315 号 p. 242-243
発行日: 1961/04/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (320K)
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