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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
- Transactions of the Japan Society of Mechanical Engineers Series C
- Transactions of the Japan Society of Mechanical Engineers Series B
- Transactions of the Japan Society of Mechanical Engineers Series A
Volume 9 (1943 - 1944･･･
- Issue 37-4 Pages 113-
- Issue 37-3 Pages 53-
- Issue 37-2 Pages 103-
- Issue 37-1 Pages 161-
- Issue 36-4 Pages 89-
- Issue 36-2 Pages 69-
- Issue 36-1 Pages 121-
- Issue 35-4 Pages 27-
- Issue 35-3 Pages 23-
- Issue 35-2 Pages 43-
- Issue 35-1 Pages 33-
- Issue 34-4 Pages 1-
- Issue 34-3 Pages 1-
- Issue 34-2 Pages 1-
- Issue 34-1 Pages 1-
Volume 8 (1942)
- Issue 33-4 Pages 215-
- Issue 33-3 Pages 33-
- Issue 33-2 Pages 63-
- Issue 33-1 Pages 185-
- Issue 32-4 Pages 185-
- Issue 32-3 Pages 21-
- Issue 32-2 Pages 53-
- Issue 32-1 Pages 117-
- Issue 31-4 Pages 101-
- Issue 31-3 Pages 1-
- Issue 31-2 Pages 25-
- Issue 31-1 Pages 43-
- Issue 30-4 Pages 1-
- Issue 30-2 Pages 1-
- Issue 30-1 Pages 1-
Volume 30, Issue 217
Displaying 1-11 of 11 articles from this issue
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Ryoichi ICHIMIYA1964 Volume 30 Issue 217 Pages 1019-1026
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThis paper describes the mechanism of orthogonal cutting at high temperature employing mainly the analysis of mechanism with the transitional deformation range and experimental data for lead, brass, carbon steel and stainless steel. From the experimental results, it was revealed that the sector angle of flow region and inclination of ending boundary line increased with work temperature, and the tendency of the orthogonal cutting mechanism at high temperature was similar to that of increasing rake angle of the tool. In consequence, it was found that the machinability based upon the chip formation at high temperature was better than that at room temperature.View full abstractDownload PDF (857K) -
Moriya OYANE, Saizi MASAKI1964 Volume 30 Issue 217 Pages 1028-1034
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThere were many studies on electrohydraulic forming in which the relationship between the deformation characteristic of metallic material of a given shape and stored electrical energy was investigated, but few studies on pressure pulse which had direct relation with the deformation. In the previous paper the authors presented a fundamental study on this relation within the stored electrical energy up to 180 joules. This paper presents the results of experiments, in which a capacitor discharge circuit employed as an electrohydraulic forming machine was used to explode various kinds of fine wire (diameter : 0.2mm, length : 5cm) submerged in a water tank, and the resulting pressure pulse at a point 15 to 50cm from the pressure source was recorded as a function of time using a calibrated pressure gage (barium titanate) and an osciloscope. The effect of various kinds of fine wire and discharge circuit conditions such as initial capacitor voltage and inductance on the shape and amplitude of pressure pulse is presented, and the efficiency of these apparatus is also mentioned and discussed. Initial capacitor voltage was varied up to 11 kV, and total stored electrical energy in the capacitor bank was varied up to 1400 joules.View full abstractDownload PDF (862K) -
Moriya OYANE, Saizi MASAKI1964 Volume 30 Issue 217 Pages 1035-1038
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThere were many studies on electrohydraulic forming in which the deformation of metallic material was investigated. In most of the studies the wire used as pressure source is very fine. A clear account has not been given of the relationship between the dimension of wires and initial discharged circuit conditions such as initial capacitor voltage and circuit inductance, and then at a given stored electrical energy there is little reason to use what kind and dimension of wires as effective pressure source. For the reason of F.H. Webb's experimental fact that, if sufficient energy is accumlated into wire to vaporize it, the delaying time of boiling lasts for a time comparable with the time required for a sonic wave in the wire to propagate to the center and return, the longer the time just described is, the higher superheating is. This paper presents the results of experiments in which the characteristic of capacitor discharge circuit as electrohydraulic forming machine was used to explode fine copper wire of which diameter is 0.14 to 0.4mm. The best condition for creation of pressure pulse is investigated and discussed.View full abstractDownload PDF (541K) -
Ujiro NISHIYAMA, Takashi INOUE, Masao OKUNO1964 Volume 30 Issue 217 Pages 1040-1045
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn the explosive forming, there are two actions; the first action caused by the initial shock wave and the second caused by the following gas bubble motion. The authors investigated the process of the forming by using the so-called pin-contactors under the several conditions, and ascertained that the gas bubble pressure has an appreciable effects on the forming under some water depth. On the other hand, the authors carried out the experiments by placing the thin air layers over the test pieces. The results showed that the formability was much improved by the interruption of the direct incidence of the shock wave.View full abstractDownload PDF (1097K) -
Kouyu MIYAZAKI1964 Volume 30 Issue 217 Pages 1046-1052
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn measuring of flatness of a surface plate by sensitive spirit level method, the so-called two-point connecting method, it is widely known to the public that a series of level readings is made for two series of parallel lines spaced equally, with one set of lines at right angles to the other set, so as to form a network of squares. In this case, how to connect these measuring values differs in each case, but their connecting orders are generally troublesome in some degree. Accordingly, if the magnitude of deviation from the ideal plane at any lattice point is given as the total sum of products obtained by multiplying the measured value at each position by each coefficient provided at the above each position, we are able to find the flatness of the surface plate easily without employing such troublesome connecting order. Now, in this paper, from the point of view mentioned above, the author gives such value of coefficient prescribed at the above each position, and makes it possible to find the flatness of the surface plate both easily and mechanically.View full abstractDownload PDF (792K) -
Kiyoshi OGAWA1964 Volume 30 Issue 217 Pages 1053-1062
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn this paper, the displacement characteristic of type E combination of the six-bar linkage in the range of operations was analysed, when the driving crank makes a complete revolution while the follower ascillates or rotates. As a result, the complicated relationship between the form and its displacement became clear. Therefore, by making the models of the mechanical type with the displacement curve, new methods of the numerical calculation and vector diagramatic solution of type E have been developed with the aid of a digital computer.View full abstractDownload PDF (830K) -
Toshimi TOBE1964 Volume 30 Issue 217 Pages 1064-1070
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe author carried out the contact roller test using a testing machine originally designed by the author, in order to find the allowable contact stress (Hertz stress) of materials used for marine reduction gears. The conditions for experiments are as follows; diameter of test rollers=55 and 60 mm, rolling velocity=6.4 and 15.7 m/s with 24% specific sliding, temperature of the turbine oil supplied=46°C. The important results are summerized : The S-N curve and endurance limit of wheel materials in combination of materials of pinion and wheel are considerably affected by the rolling velocity, specific sliding, lubricants and their temperature. The increase of the rolling velocity raises the endurance limit. Pits in existence of specific sliding are produced in a short time as compared with the case of pure rolling. The effect of the high viscosity of lubricant seems to play such a role as the increase of the rolling velocity.View full abstractDownload PDF (1354K) -
Hajime KUGIMIYA1964 Volume 30 Issue 217 Pages 1072-1079
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSFew investigations have been made on the dynamic properties of helical gears with profile modification and there are many important problems which should be clarified. The object of this paper is to find out the effect of the profile modification on the dynamic stresses in the teeth and the gear noise of crowned helical gears. In the profile modification, four kinds of corrections are given successively to one crowned helical gear. The experiments are conducted by employing a gear testing machine of power circulating type. As a result of these tests, it may be concluded that further improvement in the dynamic properties of crowned helical gears are obtained, if a suitable profile modification is given.View full abstractDownload PDF (981K) -
Kojiro KANEKO, Hisashi OUCHIDA1964 Volume 30 Issue 217 Pages 1080-1086
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThere have already been made many studies on the component materials of power transmitting gears in relation to their pitting effect, and the effects of component on the pitting have been made clear. However, it seems that there are few examples of comparative studies into details of the fatigue phenomena including crack, work hardening and plastic flow. In the first report the authors tried the minute examinations of the pittings of large type helical gears made of Cr-Mo steel (SCM-1). In this report, the authors performed the same experiments on the helical gears of carbon steel (S45C) and made clear the differences in each characteristic pitting of both materials.View full abstractDownload PDF (1741K) -
Tokio SASAKI, Haruo MORI, Ryuji WADA1964 Volume 30 Issue 217 Pages 1088-1099
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSFor controlled hydrostatic bearings having variable restrictions, it is possible to make their static stiffness increase greatly by means of the automatic regulation of recess pressure; namely the recess pressure controlled by a spool valve rises rapidly according to the displacement of journal or shaft, thus the bearings possess very high load capacity at steady state. However, it may be considered that the dynamic behavior of these controlled bearings is inferior to an ordinary bearing employed conventional fixed restriction of flow. For practical use of these therefore, the investigations of the static and dynamic characteristics are riquired. This paper bearings, presents experimental results obtained by a testing device, which is made to examine the procedure of practical design and refers to theoretical research on a controlled hydrostatic journal bearing having a variable restriction by means of the spool valve and four rectangular recess around the shaft. The static and dynamic characteristics of the controlled hydrostatic bearing are discussed.View full abstractDownload PDF (1619K) -
Tokio SASAKI, Kenjiro OKAMURA, Tadataka KONISHI, Masahiko TAKIMOTO1964 Volume 30 Issue 217 Pages 1100-1111
Published: September 25, 1964
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSOne of the most characteristic properties in the gear lubrication is the variation of lubricating condition on the gear-tooth surface with movement of mating point. In order to investigate the transitional behaviour of lubricating oil-film caused by the variation of lubricating condition, discontinuous phenomena in the gear lubrication are theoretically and experimentally analyzed. The hydro-dynamic squeeze-effect of lubricating oil-film is theoretically analyzed, and the variations of the pressure distribution, the minimum thickness and the load carrying capacity of lubricating oil-film are derived. With the roller testing apparatus, which gives discontinuous contact and load with rotation of test-rollers, the variation of oil-film thickness caused by the variation of lubricating condition is measured. These results give some good suggestions to the analysis on the transitional phenomena of lubricating oil-film on the gear-tooth surface.View full abstractDownload PDF (1614K)
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