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Volume 52, Issue 2
Displaying 1-26 of 26 articles from this issue
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[in Japanese]1986 Volume 52 Issue 2 Pages 203-205
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.203JOURNAL FREE ACCESSDownload PDF (674K) -
[in Japanese]1986 Volume 52 Issue 2 Pages 206-209
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.206JOURNAL FREE ACCESSDownload PDF (688K) -
[in Japanese]1986 Volume 52 Issue 2 Pages 210-214
Published: February 05, 1986
Released on J-STAGE: February 16, 2010
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.210JOURNAL FREE ACCESS -
[in Japanese]1986 Volume 52 Issue 2 Pages 215-218
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.215JOURNAL FREE ACCESSDownload PDF (709K) -
[in Japanese]1986 Volume 52 Issue 2 Pages 219-223
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.219JOURNAL FREE ACCESSDownload PDF (5727K) -
[in Japanese]1986 Volume 52 Issue 2 Pages 224-230
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.224JOURNAL FREE ACCESS -
[in Japanese]1986 Volume 52 Issue 2 Pages 231-235
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.231JOURNAL FREE ACCESS -
[in Japanese]1986 Volume 52 Issue 2 Pages 236-239
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.236JOURNAL FREE ACCESSDownload PDF (683K) -
[in Japanese], [in Japanese]1986 Volume 52 Issue 2 Pages 240-245
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.240JOURNAL FREE ACCESS -
[in Japanese]1986 Volume 52 Issue 2 Pages 246-248
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.246JOURNAL FREE ACCESSDownload PDF (593K) -
[in Japanese]1986 Volume 52 Issue 2 Pages 249-252
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.249JOURNAL FREE ACCESSDownload PDF (726K) -
[in Japanese]1986 Volume 52 Issue 2 Pages 253-254
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.253JOURNAL FREE ACCESSDownload PDF (296K) -
[in Japanese]1986 Volume 52 Issue 2 Pages 255-260
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.255JOURNAL FREE ACCESSDownload PDF (13400K) -
[in Japanese]1986 Volume 52 Issue 2 Pages 261-265
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.261JOURNAL FREE ACCESSDownload PDF (757K) -
Yoshiya FUJII, Hiroyasu IWABE1986 Volume 52 Issue 2 Pages 273-278
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.273JOURNAL FREE ACCESSThis paper deals with the influence of chuck and collet on deflections in end milling. The results are as follows. (1) The deflection of spindle E0 in end milling is divided into three portions, namely, by chuck E1, by collet E2 and by end mill E3. And the distribution ratios are given by E1/E0, E2/E0 and E3/E0 for various diameters of end mill. (2) The ratio E3/E0 by end mill is from 25 to 45% for 16 mm diameter. So it is obvious that working accuracy with end milling is affected significantly by the deflections E1 of chuck and E2 of collet. (3) The ratio E3/E0 by end mill increases, but the ratios E1/E0 by chuck and E2/E0 by collet become decrease with smaller diameter of end mill. (4) The deflection curve of spindle shows a discontinuous manner by collet, however deflection curves are independent of any slit position.View full abstractDownload PDF (1092K) -
Study on Surface Characterization of Cutting Tool Material and Prevention of Its Brittle Fracture (Part 1)Hidehiko TAKEYAMA, Noboru IIJIMA, Yukihiro YAMAMOTO1986 Volume 52 Issue 2 Pages 279-284
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.279JOURNAL FREE ACCESSThe objective of this study is to clarify the mechanism of metal adhesion on the cutting tool and to prevent its brittle fracture due to metal adhesion. The WC-Co cemented carbides, of which surfaces were processed by diamond wheel grinding, aluminum oxide wheel grinding, electrolytic grinding, sandblasting and coating of TiC and TiN, were subjected to cutting tests, in order to assess the tool life in view of brittle fracture due to metal adhesion, and to surface characterization to correlate it with the cutting performance. The important findings are that the surface treatments of carbide tool greatly affect metal adhesion and hence brittle fracture due to metal adhesion, and especially, carbide tools ground with an aluminum oxide wheel exhibit excellent adhesion resistance to yield longer tool life in the sense aforementioned and superior quality of machined surface.View full abstractDownload PDF (24978K) -
Yoshikuni NAKANO, Hideo KATO1986 Volume 52 Issue 2 Pages 285-290
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.285JOURNAL FREE ACCESSThis paper presents a new practical method of balancing grinding wheels in the case of surface and cylindrical grinding machines. In this method, the grinding wheel is mounted on its own grinding machine without any changes of commercially available wheel flanges and grinding machines. The relative displacement between the wheel head and the work table is detected by using a gap sensor under running conditions. Simultaneously, the phase of the peak of the relative displacement with respect to a datum line on the wheel is measured by using a reflecting photo-sensor and an aluminum foil sticked on the face of the wheel. On the basis of the amplitude and phase shown on two indicators of a newly developed instrument, the balancing procedure is performed manually when the wheel is stationary by shifting correcting masses in the same way as the conventional gravitational method. By using this method, the amplitude of the relative displacement between the wheelhead and the work table can be reduced easily to about twenty to thirty per cent of the values in the case of the conventional gravitational method.View full abstractDownload PDF (13488K) -
Truing Performance of Various TechniquesSeiki MATSUI, Katsuo SYOJI, Masamichi YAMAO1986 Volume 52 Issue 2 Pages 291-296
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.291JOURNAL FREE ACCESSDiamond wheels must be correctly prepared in order to give optimum results in grinding. This preparation will be sufficed by only truing operation for diamond vitrified wheels. This paper first describes a brief investigation of truing performance on the most widely used truing techniques for preparing vitrified wheels. The main obtained results are as follows : (1) Single-point diamond tool or diamond impregnated tool has a comparatively high efficiency in truing but cannot derive a satisfactory grinding performance from the diamond wheel. SEM observations shows that the wheel surface trued by these techniques contains numerous grains with flat plateaux. (2) Diamond wheel after truing with a silicon carbide brake truer has a higher performance in grinding but remains out of round by 2-3 μm. On the basis of these results a new technique with GC cup truer is proposed in the rest of this paper. This device consists of a silicon carbide wheel with the axis perpendicular to the grinder table. This technique is discussed in detail and proved to be satisfactory in truing effect and efficiency.View full abstractDownload PDF (13541K) -
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...1986 Volume 52 Issue 2 Pages 297-299,343
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.297JOURNAL FREE ACCESSDownload PDF (7883K) -
Drawing Processing Procedure for MeasurementsKiyoshi TAKAMASU, Shigeo OZONO1986 Volume 52 Issue 2 Pages 300-305
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.300JOURNAL FREE ACCESSIn this report, the drawings are recognized for the basis of measurements and the drawing processing is discussed from this point of view. First, the general characteristics of drawings is discussed. Then, “Drawing Space” is defined which is three dimensional space described by the drawing. “Product-solids” are created by two loops on the drawing so as to minimize units in the drawing space. The “Part Divide” method that processes drawings of polyhedron parts is proposed, and this method extract the structure of the drawing space by using product-solids. The contradictions and the equivocals of drawings can also be found by this method. From these results, the structure of the drawing space can be composed from top to down. Using this information, the measuring point is recognized by the relationship between the position of the projected point and loops on the drawing. This method and the structure of the drawing space are intended to use for automatic measurements of parts.View full abstractDownload PDF (1143K) -
Tomotoshi ISHIDA, Hajime MINOWA, Naomasa NAKAJIMA1986 Volume 52 Issue 2 Pages 306-312
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.306JOURNAL FREE ACCESSThis paper shows a computerized method to detect unanticipated functions of a machine for verifying the design before manufacturing. As for the detection of the functions mentioned above, we think the approach of simulating disigner's thinking behaviour is effective. In our system, the structure of the whole assembly, which is described by the Feature Descriptor, is transformed and stored in the frame structure in a computer, and the detection procedures with knowledge are kept also in the frame structure. Thus, the evaluation about such as fluid leakage, impossibility of disassembling and various unnoticed defects, can be done by applying the procedures obtained from the frames to the machine structure.View full abstractDownload PDF (1249K) -
Dynamic Characteristics of Concrete BedOsamu NAGAYASU, Toshifumi SHINNOH, Hiroshi SUGISHITA, Hiroshi NISHIYAM ...1986 Volume 52 Issue 2 Pages 313-318
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.313JOURNAL FREE ACCESSRecently it has been an important theme to improve dynamic rigidity and damping characteristic of machine tools. One method to solve this problem is to use new materials, which are concrete, plastics and ceramics, as structural elements of machine tools. The present paper aims at development of machine tools of better dynamic characteristics with hydraulic concrete which is one of new materials and has high damping characteristic. The object of this paper is machining center with vertical milling head. The cast iron bed of the machine is charged with concrete bed and improvement of dynamic characteristics and cutting performance of machining center are experimentally studied. For the 1st report, the results of comparative experiments of two beds are reported. Following some advantages of concrete bed are obtained : (1) By means of suitable coating of surface, concrete endures cutting oils and drying shrinkage of concrete is very little. (2) Bending rigidity of concrete bed can be made almost equal to that of cast iron bed. (3) Natural frequencies are high and mode shapes are simple. (4) Damping ratio is high and especially good in high frequencies.View full abstractDownload PDF (1040K) -
Principle and Properties of BehaviorKunio KOIZUMI, Yasuo YOKOYAMA1986 Volume 52 Issue 2 Pages 319-325
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.319JOURNAL FREE ACCESSThe study deals with analysis for development of the hammering machine with the shock isolating anvil. It consists of the rigidly installed machine body and the elastically suspended anvil on the body or a rigid base. The anvil causes self synchronous impact motion with the hammer. Damping of the anvil system must be small for the active motion. A work is held at a constant colliding position by operator's hands on a guide table and given counterblow by them. The few important points of this isolation method are as follows : (1) The work must be light enough compared with the anvil. (2) Anvil ratio must be large, more than about 15, under condition that a damped natural frequency of the anvil system is lower than an exciting one. (3) If the ratio of these frequencies is adjusted to 1/2, the work receives impact at static equilibrium position of the anvil head. The feeling of work operation approaches to that in the case of a rigidly connected anvil.View full abstractDownload PDF (1273K) -
Trial Construction of Life Testing Apparatus and Fatigue Life of Ball Screw with Single NutHirokazu SHIMODA, Minoru IZAWA1986 Volume 52 Issue 2 Pages 326-331
Published: February 05, 1986
Released on J-STAGE: February 16, 2010
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.326JOURNAL FREE ACCESSIn this paper, the 12 life testing apparatuses of ball screw are made on a trial basis, and the life test of the 25 precision ball screws (C 3 class) with single nut are carried out. Based on the results of these life tests, the states of the initial fatigue failures and their progress and the life distribution of the ball screws are discussed. The main results are as follows : (1) The initial fatigue failure are occurred at the nut raceway on the back side of ball return tube for nearly all the ball screws. (2) The initial fatigue failures of the ball screws are generated by the very small pittings or the surface-initiated cracks, which grows to the flakings. (3) The scattering of the ball screw lives is fairly small as compared with that of the rolling bearing lives. (4) The basic dynamic load rating is 20% greater and the rating life is 77% longer than those which are recommended by the ball screw manufactures.View full abstractDownload PDF (8221K) -
Shuyuan MA, Akira SHIMOKOHBE1986 Volume 52 Issue 2 Pages 332-337
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.332JOURNAL FREE ACCESSDevelopment of three dimensional (3 D) measuring machines which are not equipped with axes; x, y, z axes and/or joint axes, is important because such machines do not suffer from the Abbe's errors, play and clearance of joint axes, and/or elastic deformation of mechanisms. This paper first introduces the principle of a new coordinate measurement system using ultrasonic waves in which : (1) some fixed receivers receive several kinds of ultrasonic signals from a movable transmitter, (2) from the phase shifts between the transmitted and received signals, distances of the transmitter from the receivers are calculated, and (3) from the distances, 3 D coordinates of the transmitter are determined by triangulation. Secondly, the paper explains a measuring setup. Some experimental results in a space of 300 mm×300 mm×1000 mm shows that the errors of 1 D measurements are less than 0.2 mm and those of 2 D and 3 D are less than 1 mm and 2 mm respectively. The causes of the errors are also discussed.View full abstractDownload PDF (1154K) -
Kimiyuki MITSUI, Norimitsu OZAWA1986 Volume 52 Issue 2 Pages 338-342
Published: February 05, 1986
Released on J-STAGE: June 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.2493/jjspe.52.338JOURNAL FREE ACCESSIt is well known that the surface of ground workpiece often contain visible chatter patterns, such as diagonal grid of parallel lined patterns. These patterns, often occur in finish grinding operations, may be unacceptable by the inspection or as in case of rolls for sheet metal production or dies for plastics parts production, they may be transferred on to the parts and reduce its quality. At present the intensity of the pattern is assessed by visual inspection and forms a part of a machine tool acceptance test. But it is of course a subjective test. So, a less arbitrary technique is required. A simple method of quantitative assessment of certain patterns visible of precision ground surface has been developed. The measuring system is described in detail and the measuring results of its application for several specimen are also given.View full abstractDownload PDF (933K)
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