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34 巻, 400 号
選択された号の論文の11件中1～11を表示しています
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歯車論酒井 高男, 森田 信義1968 年 34 巻 400 号 p. 303-309
発行日: 1968/05/05
公開日: 2009/06/30
ジャーナル フリーA pair of gears of constant torque ratio does not have constant velocity ratio, while a pair of teeth are in mesh. So it becomes important to get a pair of gears which have smooth succession from each pair of teeth to the next. The aim of this paper is to get the condition how to achieve such action.
The condition is given by a relation between the gear ratio and the torque ratio, and it also depends on the position of the points of engage-in and engage-out, where the contact ratio is 1.0. And it is shown that the minimum va!ue of the obliquity angle has a limi;ation, when the number of teeth and the frictional coefficient are given.抄録全体を表示PDF形式でダウンロード (1114K) -
切れ刃丸みを変化した二次元バイトによる実験的研究山本 明, 中村 示1968 年 34 巻 400 号 p. 310-315
発行日: 1968/05/05
公開日: 2009/06/30
ジャーナル フリーRubbing-cutting transition phenomena are studied on the orthogonal cutting in which depth of cut increases gradually.
Specimens of steels with various hardness are cut by two dimentional tools of SKH4 that have various roundness of cutting edge. On that occasion the thrust component of cutting force falls down suddenly when a pilled-up material on the front of cutting edge covers beneath the center of round part of cutting edge. This circumstance is considered as the model of beginning of cutting, and has done some discussion about it. The main results are as follows.
1. The thrust component in this transition point and the sliding distance to this point are proportional to the radius of cutting edge and the hardness of workpiece.
2. The former is unconcerned with the rate of cutting depth increase, and the latter is inversely proportional to that rate.
3. Further more, both depend upon the cutting velocity slightly.抄録全体を表示PDF形式でダウンロード (3768K) -
研削砥石の目つまりの研究 (VII)重松 日出見1968 年 34 巻 400 号 p. 316-320
発行日: 1968/05/05
公開日: 2009/06/30
ジャーナル フリーThe relations between loading of grinding wheel and grinding phenomena are investigated. The results obtained are as follows :
(1) The rate of stock removal and the accuracy of finished surface decrease as the quantities of loading increases.
(2) The grinding force, deformed layer, dressing interval and grinding spark change considerably by the quantities and conditions of loading on the wheel surface.抄録全体を表示PDF形式でダウンロード (5543K) -
長周期ねじり受振器の研究 (第1報)古川 英一, 村奈嘉 与一1968 年 34 巻 400 号 p. 321-327
発行日: 1968/05/05
公開日: 2009/06/30
ジャーナル フリーA taut-wire suspension of the seismic rotor of torsional pickups, particularly suitable for the torsional pickups of low natural frequency, is described. Design formulas are briefly outlined for the torsional stiffness, the sag of rotor due to gravity, the shearing stress of wire, and the possible modeforms of the suspension system. The sag of rotor is considered in some deta a comparison of the sags is made with that of the taut-band suspension, and a suggestion is made for the design to minimize the sag.
The taut-wire suspension has been applied to an electrodynamic pickup of low natural frequency and 66mm diameter, of which the sag of rotor, the linearity of torsional stiffness, the creep and hysteresis, and the fatigue limit are examined ; it is concluded that the maximum deflection angle of the rotor should be determined mainly from a consideration of the creep and hysteresis characteristics.抄録全体を表示PDF形式でダウンロード (1120K) -
酸化摩耗粉のラッピング効果水野 万亀雄1968 年 34 巻 400 号 p. 328-334
発行日: 1968/05/05
公開日: 2010/02/16
ジャーナル フリーIn this report, it is intended to verify that an oxidation and a deoxidization play main roles in the wear process. In order to study the effects of oxidation and deoxidization on wear, several basic experiments are carried out on pure metals, such as gold, silver and copper, against glass disk, under unlubricated condition and under various lubricated conditions, using distilled water, 15% and 30% hydrogen peroxides, and 2% hydroquinone. As the result, it is shown that onthe excessively oxidized condition the wear tends to increase, ori the contrary, on the deoxidized condition the wear tends to decrease. This phenomena are easily explained by the mechanism that the loose oxide particles generated by wear act as lapping powder. Farther more, the mechanism is confirmed by the experimental data of frictional force and surface roughness that are affected by the lapping action of the oxide particles.抄録全体を表示PDF形式でダウンロード (3055K) -
伊藤 鎮, 福田 理一, 金 吉雄1968 年 34 巻 400 号 p. 335-340
発行日: 1968/05/05
公開日: 2009/06/30
ジャーナル フリーMaximum height of turned surface roughness Hm is considered to consist of the following three factors.
H0 : Roughness determined by tool geometry and feed.
H1 : Variance of roughness except H0 and H2.
H2 : Variance of roughness resulted by variation of feed and depth of cut.
The attempt of this study is to analyze roughness of turned surface by disintegrating Hm, into H0, H1 and H2 using profile curves.
From the experiments in which plain carbon steel is turned with various feeds and nose radii of tool, the following conclusions are obtained.
(1) The larger the nose radius and the smaller the feed, the larger H1 becomes.
(2) The larger the nose radius and feed, the larger H2 becomes.
(3) When the feed is small, the values of H1 and H2 are almost same, but H2 becomes larger than H1 by increasing the feed.
(4) The ratio H0/Hm, decreases with a decrease of feed, and iL also does with an increase of nose radius of tool.抄録全体を表示PDF形式でダウンロード (922K) -
高橋 正男1968 年 34 巻 400 号 p. 341-349
発行日: 1968/05/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (4335K) -
1968 年 34 巻 400 号 p. 350-353
発行日: 1968/05/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (744K) -
1968 年 34 巻 400 号 p. 353
発行日: 1968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 (117K) -
-超硬カッタの問題点-奥島 啓弍, 星 鉄太郎, 湊 喜代士1968 年 34 巻 400 号 p. 354-359
発行日: 1968/05/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (1121K) -
1968 年 34 巻 400 号 p. 359
発行日: 1968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 (138K)
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