巻号一覧
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25 巻, 293 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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北条 英典1959 年 25 巻 293 号 p. 295-300
発行日: 1959/06/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (10928K) -
鋼球ラッピングにおける切削抵抗(1)井戸 守, 羽地 務1959 年 25 巻 293 号 p. 301-307
発行日: 1959/06/05
公開日: 2009/06/30
ジャーナル フリーIn this paper continued from forgoing one, we made an experiment on the effect of lapping velocity, time, lapped quantity and sphericity of balls upon cutting resistance when the radius of steel balls was about 1 mm : especially, an experiment on the nature of cutting resistance.
Namely, we measured cutting resistance in each lapping condition using a measuring equipment of Figure 1 in which twisting deformation of coiled helical spring was applied to and obtained following effects:
(1) Sliding and rolling resistance owing to scratch and crush of abrasive grains on lap and ball surfaces (proportional to lapping pressure and size of grains, and changes due to the lapping velocity and density of lapping compound).
(2) Impact resistance owing to macroscopic waviness of steel ball surface (proportional to lapping pressure and velocity).
(3) Resistance change owing to supplying state of lapping liquid (influenced by lapping velocity and exclusion of chip).
We found that lapping quantity was not proportional to the integration of cutting resistance for time and that the sphericity became better when the cutting resistance decreased gradually.抄録全体を表示PDF形式でダウンロード (4987K) -
直角2面鏡および直角プリズムによる干渉(其の2)桜井 好正1959 年 25 巻 293 号 p. 307-312
発行日: 1959/06/05
公開日: 2009/06/30
ジャーナル フリーThe characteristics of interferometers of which reflecting mirrors are a right angle prism or a pair of front-surface mirrors mounted to form a right angle, are discussed as a continuation of 2 nd report. When the length is measured by means of fringe counting method in those interferometers, it is found that the measured values have the errors essentially in following cases.
(i) The angle between the reflecting surfaces deviate from the right angle.
(ii) The hypotenuse of right angle prism is not parallel to the intersection of its reflecting surfaces.抄録全体を表示PDF形式でダウンロード (1025K) -
佐田 登志夫, 中島 澄1959 年 25 巻 293 号 p. 312-319
発行日: 1959/06/05
公開日: 2009/06/30
ジャーナル フリーMachinability tests of several carbon steels, chromium steel, chrome-molybdenum steel and stainless steel are carried out with radioactive carbide tools. The correlation of carbon contents in the carbon steels and variation in heat treatment of the chrome-molybdenum steel with the tool lives are investigated. By such quick tool-life tests, reasonable tool-life equations are obtained for the aforementioned materials. Besides, the relation between machinability in terms of tool life and flow stress in metal cutting is demonstrated experimentally.抄録全体を表示PDF形式でダウンロード (3731K) -
1959 年 25 巻 293 号 p. 312a
発行日: 1959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 (174K) -
奥島 啓弐, 人見 勝人1959 年 25 巻 293 号 p. 320-327
発行日: 1959/06/05
公開日: 2009/06/30
ジャーナル フリーThe mechanism of chip curl in orthogonal cutting is investigated with experimental results for lead and carbon steel, which leads to the following conclusions:
(i) The ending boundary-line of the flow region which exists between the workpiece and the steady chip is convex upwards, and the distribution of shearing stress is not uniform on the ending boundary-line. They are some of the causes for chip curl.
(ii) The radius of chip curl decreases with an increase of rake angle.
(iii) The radius of chip curl increases linearly with depth of cut.
(iv) The radius of chip curl increases with cutting velocity.抄録全体を表示PDF形式でダウンロード (6231K) -
1959 年 25 巻 293 号 p. 328-348
発行日: 1959/06/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (3005K) -
1959 年 25 巻 293 号 p. 350-353
発行日: 1959/06/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (745K)
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