巻号一覧
後続誌
26 巻, 308 号
選択された号の論文の10件中1～10を表示しています
- |<
- <
- 1
- >
- >|
-
桜井 好正1960 年 26 巻 308 号 p. 505-511
発行日: 1960/09/05
公開日: 2009/06/30
ジャーナル フリーA brief description is given of an interferometric method for the direct evaluation of line standards in terms of wave-length of light, and its application to the practical measuring instrument for precision scales up to one meter.
In order to transfer the interval of the lines to be measured to the mechanical displacement of a reflecting mirror of interferometer by the application of Eppenstein's method, a photo-electric microscope is tested experimentally and the Eppenstein's principle is analysed theoretically. The characteristic of interferometers which have the right angle prisms or corner-cube prisms, is examined analytically in order to estimate the measuring accuracy of the mechanical displacement by the method of fringe counting.
The accuracy of the practical instrument is 0.05μ in the length of 1 meter.抄録全体を表示PDF形式でダウンロード (4061K) -
井上 友一1960 年 26 巻 308 号 p. 512-516
発行日: 1960/09/05
公開日: 2009/06/30
ジャーナル フリーUsing a new type cammera, we studied on the dynamical characteristics of the high speed fine turning which has sliding bearings. In the present research, the effects of the clearance and oil pressure were considered.抄録全体を表示PDF形式でダウンロード (3266K) -
井上 友一1960 年 26 巻 308 号 p. 517-521
発行日: 1960/09/05
公開日: 2009/06/30
ジャーナル フリーFollowing up our 8th report on the high speed fine lathes, we studied on the effect of the cutting heat.抄録全体を表示PDF形式でダウンロード (2214K) -
吉川 弘之, 佐田 登志夫1960 年 26 巻 308 号 p. 522-528
発行日: 1960/09/05
公開日: 2009/06/30
ジャーナル フリーThe characteristics in wear of grinding wheels are investigated over an ordinary range of grinding conditions. Further, the size distribution of abrasive grains worn from a grinding wheel is measured. Experimental results reveal the rapid increase of wear as the grinding condition is brought severe. The size distribution, however, does not change remarkably throughout the experiments.
The effect of the grinding condition on wear is discussed in terms of the life of an active grain. The discussion leads to the conclusion that the life of a grain involves only a parameter, that is, the grain depth of cut which varies with the work speed and the vertical feed.抄録全体を表示PDF形式でダウンロード (1061K) -
吉川 弘之, 佐田 登志夫1960 年 26 巻 308 号 p. 529-534
発行日: 1960/09/05
公開日: 2009/06/30
ジャーナル フリーAn expression for the wear rate of grinding wheel is developed from a consideration of the fracture behavior of brittle materials, whose fracturing probability is believed to show the strong time and stress dependence. It is shown that the wear rate of grinding wheels is to be expressed as the single exponential function of the grinding velocity and as the double exponential function of the grinding force. Experimental results confirm the theoretical interpretation.抄録全体を表示PDF形式でダウンロード (1005K) -
通電高温切削法の効果(その2)大越 諄, 上原 邦雄1960 年 26 巻 308 号 p. 535-545
発行日: 1960/09/05
公開日: 2010/02/16
ジャーナル フリーIn succession to the 3 rd report the effect of hot machining by electric current is studied. In this paper following five materials are machined by this method, they are Cr-Mo steel 13% Cr stainless steel 18-8 stainless steel special heet-resisting steel and high manganese steel.
The conclusions derived from these experiments on the effect of hot machining by electric current (including the 3rd report's) are as follows.
(1) The electric resistance between cutting tool and workpiece is inversely proportional to the cutting area approximately and scarcely influenced by cutting speed.
(2) The mean temperature rise at the region between shear plane and rake surface by this method is mainly governed by Joule's heat and the heating efficiency η is estimated 1/3 to 1/4 when this method is applied.
(3) Built-up-edge can be easily eliminated by this method.
(4) The ratio of force reduction in machining by this method is approximately proportional to the mean temperature rise at the region between shear plane and rake surface (the formula of the mean temperature rise is presented in the 3 rd report).
(5) The force reduction accompanies increase of shear angle φ, decrease of friction angle β, increase of φ+β-α and decrease of shear stress ratio τc/τs, generally, so high temperature rise at the rake face is expected when this method is applied.
(6) The longer tool life is expectable by this method.
Summarizing the experimental results, it can be concluded that this new method of hot machining is useful in the field of metal cutting.抄録全体を表示PDF形式でダウンロード (10499K) -
服部 敏夫1960 年 26 巻 308 号 p. 546-549
発行日: 1960/09/05
公開日: 2009/06/30
ジャーナル フリー特許制度の目的は発明の公開と技術の交流にあるのであつて,特許権という独占権はその公開の代償,すなわち発明の公開への手段にすぎないことは改めて述べることもないのであるが,このような制度はわが国では大正10年の改正以来のそのままであつた。
ところが,最近の科学技術の進歩の目覚しい世界情勢にてらして旧法は幾多のそぐわない点があつたこと,また法理論としても旧法には問題点があつたことなど,このような諸点を一挙大改正を行なつたものである。
したがつて,その円滑なる運用を期する上においても発明者,研究者はもちろん,経営者についても十分理解しておく必要があると思うが,以下特許法についてその主要事項を解説する。抄録全体を表示PDF形式でダウンロード (772K) -
1960 年 26 巻 308 号 p. 549
発行日: 1960年
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (163K) -
太田 信之, 横野 親男, 田村 五郎1960 年 26 巻 308 号 p. 550-553
発行日: 1960/09/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (639K) -
1960 年 26 巻 308 号 p. 556-559
発行日: 1960/09/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (850K)
- |<
- <
- 1
- >
- >|