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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 22, Issue 118
Displaying 1-14 of 14 articles from this issue
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Kan SHIRAKASHI1956 Volume 22 Issue 118 Pages 369-370
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSDownload PDF (426K) -
Masami MASUKO1956 Volume 22 Issue 118 Pages 371-377
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn the 1st report it was shown by the analysis of the cutting resistance of the Aluminium alloy that the cutting resistance involved not only a deformation-force of a chip but an indentation-force acting on a cutting edge. In this paper, this concept is further discussed basing on the cutting tests of 4 kinds of Carbon-Steel and the theoretical equation of the indentation-force is introduced and discussed with the aid of experimental cutting data covering a wide range of operating conditions.View full abstractDownload PDF (735K) -
Zenziro WATANABE1956 Volume 22 Issue 118 Pages 378-383
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSFor analytical research on the spiral fluted tap, the present writer made an experiment by three dimensional turning, i.e., the end-turning of a cylinder having a small thickness with an inclined tool edge to which a chip breaker like the flute of the tap was attached. Three components of cutting force were measured by means of wire strain gauges which were sticked on the bite shank, and the maximum tapping torque was calculated by putting these components in an analytical formula of tapping torque he derived. In conclusion, it was considered that the tapping torque is lowest at 8∼10° for right spiral and 13∼15° for left, due to the increase in ability of flow of chips and decrease in action of chip breaking.View full abstractDownload PDF (1565K) -
Tokio SASAKI, Kenjiro OKAMURA1956 Volume 22 Issue 118 Pages 383-388
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn the application Rockwell hardness tester for measuring the grade of fine-grain abrasive stone, the measuring errors under the various testing conditions, and the deformations occured within the abrasive stone have been investigated. The results of the investigations are as follows : (1) The standard deviation in the distribution of measuring errors is a function of the ratio of the mean pressure p to the depth of depression h, i.e. dp/dh, and the range of error is comparatively large for H-scale which is frequently applied for determining the grade of fine-grain abrasive stone and has small dp/dh. (2) Though the magnitude of loading time influences the reading of grade, the influence of the loading velocity on the reading is not so much. (3) The smaller the standard loads, the greater the grade-readings. (4) The porosity widely influences the grade-readings.View full abstractDownload PDF (799K) -
Akira IWAKI, Masaki MORI1956 Volume 22 Issue 118 Pages 389-395
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSDownload PDF (786K) -
Akira IWAKI, Masaki MORI1956 Volume 22 Issue 118 Pages 395-401
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn the problem as to contact between two surfaces, it is necessary to study how the distribution of an initial roughness become under given conditions. Now, if we want to know the distribution of an initial roughness under certain pressure, we may draw a straight line with taper 1/α through the already known median on the probable paper, which has xn-axis. Here n and α are constants. Then, the probability for x=δ, the penetrating depth into the mirror surface, express the probability of contact. It is proportional to the apparent pressure andthe true contact pressure is about equal to Brinell Hardness of the milder material. And yielding of the points and maximum height are obtained.View full abstractDownload PDF (992K) -
Akira IWAKI, Toshio KUGA1956 Volume 22 Issue 118 Pages 401-407
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSWe considered the numbers and size of elementary area of contact-points, applying the distribution of quartiles to the observed distribution of stable positions of a flat indenter on the metal surface. Namely, we measured the fluctuation of the indenter setting on the metal step by step, and obtained a good agreement between the observed and theoretical results. So we estimated the numbers and unit area of contact-points by the contained. parameter 'sampling size' of the distribution function of quartiles. Our results are found at the mean value of results by the electric resistance and optical methods. For expample, by a mild steel and a block-gauge under mean pressure=1kg/mm2 and the appearance of contact-area=0.5mm2, we obtain 18 points and (9×9)μ2 area of contact.View full abstractDownload PDF (1109K) -
Shizuo DOI, Shinobu KATO, Hideo BAN, Takeshi OWADA1956 Volume 22 Issue 118 Pages 408-411
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSOne end of a mild steel rod, that is a work piece, was fastened by the chuck of lathe. In the cutting operation during which the revolving workpiece was oscillated slightly by a cam in a horizontal direction and the area of cut was varied periodically, the horizontal displacement of the work and the cutting force were measured simultaneously on a rotating film. The experimental research on the lag of horizontal cutting force behind the horizontal displacement of the work were carried out in certain cutting conditions under which the amplitude of oscillation and the period of oscillation were varied. In these cutting operations the work was apart from the cutting edge in a few period of one cycle or not. By this research, the cause of some characters of chatter, that is, the amplitude of chatter is liable to suddenly increase at a certain depth of cut, and the chatter is liable to cause in the cutting condition of a small feed and a large cutting angle, were well explained. These results also show as previously reported that the chatter is caused by the lag of horizontal cutting force when the area of cut is varied.View full abstractDownload PDF (604K) -
Moriji MASUDA, Minoru MORITA1956 Volume 22 Issue 118 Pages 412-417
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn the first report it was shown that the analysis of sheet metal bending might be based on the tensile stress-strain diagram only, although deformations were very complicated. From this point of view, the second and the third reports dealt theoretically with the plastic bending of sheet metal by V-type punch and die. And in those reports the profiles of sheet metal in early stages were analized. In the present report, the analysis consits of two progressive cases as follows : -(i) The point of contact of punch with sheet metal is being moved from the edge to the inside along the sheet metal. (ii) The sheet metal is pressed between the faces of dies, and comes in contact with the whole surface. The results agree very well with those of the experiments. By these theoretical treatments, we can analize the whole process of bending that effects on the angular springback Δθ.View full abstractDownload PDF (686K) -
Mahito KUNOGI1956 Volume 22 Issue 118 Pages 418-424
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe three dimensional flow in the plastic working process subjected to finite strain was studied with the aid of vector geometry. Relations between stream lines, velocity distributions, and principal directions of stresses were obtained by measuring deformations of grid lines on the cross sectional plane. The previous theories for finite strain in rotationally symmetric body, analyzed by Siebel and Huhne, require some corrections, especially for the additional shear increment, d(tanδ). Piercing process was used to obtain steady plastic flow of lead and aluminium, and it was found that there was little difference in flow between the hot working and cold working processes at room temperature.View full abstractDownload PDF (1024K) -
Mahito KUNOGI1956 Volume 22 Issue 118 Pages 424-428
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSPlastic deformation of materials was measured in the process of piercing free of the die, and Erhart's method. It was considered that Erhart's process consisted of two processes. The first forming process was analogous to the process of piercing free of the die. In this process, the material is pierced and compressed to fill up the clearance between the material and the die. Then forming process changed to the inverse extrusion process. Considering this result, Erhart's method was not always expected better process than the in verse extrusion, on the magnitude of the load.View full abstractDownload PDF (963K) -
Mahito KUNOGI1956 Volume 22 Issue 118 Pages 429-437
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSPlastic flow of metals was measured from the beginning to the end of piercing process. On the steady of plastic flow, the material, located farther than a distance equal to half the diameter of the die from the punch, was not in the state of plastic deformation, and the dead metal under the punch was not found when the area reduction was more than 50%. At the beginning and the end of piercing process, plastic flow directions and strains were determined during small stepwise deformation process from distorted grid lines on the cross section, and especially the forming process of the dead metal was studied.View full abstractDownload PDF (2504K) -
Minoru TOMITA1956 Volume 22 Issue 118 Pages 438-442
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn order to drive a worm by a worm wheel, we must use a multithreaded worm with large lead angle. But such worm gears are very difficult to be made. Since David Brown and Son's Co. in England has been successfully making these gears, I examined a pair of worm and Worm wheel made by the Company. As a result I have found the following essential points : a) The lead angle of the worm is about 45°, that seems to be taken to work at the maximum efficiency. b) A special care has also been taken to lead in lubricating oil to the point of mesh of tooth surfaces even under heavy load. c) Top relief and root relief have been given on the worm tooth. d) Crowning of about 0.025mm has been given on the worm thread, too. e) The worm wheel has been made of phosphor bronze and the worm of hardened steel (Hs=74), its surface being ground to mirror finish.View full abstractDownload PDF (836K) -
Shigekatsu KAWABATA1956 Volume 22 Issue 118 Pages 443-449
Published: June 25, 1956
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSSince this is a wet type abrasion mill which tractises the pulverization by utilizing essentially the grinding action, it is susceptible of operation either at normal or high temperature. It is advantageons from the viewpoint of administrating the worker's hygiene, because it generates no dust-an effect of the wet type-and practically no noise. The efficiency of the pulverization : the smaller the dimension of the grains of supplying mineral, the bigger the treating amount, consequently the efficient pulverization of corpuscular grains. We are going to state, in this report, the law of pulverization of this abrasion mill, and further the empirical formula for the calculation of the treating amount of pulverization.View full abstractDownload PDF (1111K)
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