著者
武野 仲勝
出版者
公益社団法人 精密工学会
雑誌
精密機械 (ISSN:03743543)
巻号頁・発行日
vol.27, no.317, pp.394-398, 1961-06-05 (Released:2009-06-30)
参考文献数
1
著者
高見 英樹
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.67, no.10, pp.1584-1588, 2001-10-05 (Released:2009-04-10)
参考文献数
5
著者
臼井 英治 白樫 高洋 北川 武揚
出版者
公益社団法人 精密工学会
雑誌
精密機械 (ISSN:03743543)
巻号頁・発行日
vol.41, no.491, pp.1141-1146, 1975-12-05 (Released:2009-06-30)
参考文献数
8
被引用文献数
1 1

The paper proposes an analytical method which enables to predict the temperature distribution in three dimensional metal cutting with single point tool, based only upon orthogonal cutting data. By using the three dimensional cutting model and the energy method presented in the previous paper, it is possible to obtain cutting force and chip formation such as chip flow direction, shear angle and chip shape for the tool of arbitrary shape. An assumption made on the frictional stress distribution on rake face together with the results through the energy method determines the strength of heat sources in the cutting model. The temperature distribution in workpiece, chip and tool is thus obtained through a numerical analysis of the equation involving heat conduction, transfer and generation. The predicted distribution of the temperature on rake face is found to be in good agreement with the distribution measured with a fine, insulated platinum wire embedded in the tool, of which end is exposed on the rake face and makes a thermo-couple with the chip produced.
著者
小原 新吾
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.86, no.8, pp.586-590, 2020-08-05 (Released:2020-08-05)
参考文献数
17
著者
田中 敏嗣
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.84, no.7, pp.593-596, 2018-07-05 (Released:2018-07-05)
参考文献数
15
著者
笠原 剛 仙田 修
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.57, no.4, pp.641-645, 1991-04-05 (Released:2009-10-08)
参考文献数
8
被引用文献数
1 1

The spring constant (regression coefficient of force to length of a coil spring) changes with the environment temperature. In this study, new measurement system for small regression coefficients of temperature, “γ” to spring constant of materials for scale springs is developed. The new system (S-E system) measures the natural frequency of self-excited vibration of the spring-weight component instead of their elongation. The accuracy of the system is enough to measure the regression coefficient smaller than 0.1% which is the value required for the scale spring. The S-E system also provides a simple measurement procedure compared to the previous forced-vibration (F-V) method.
著者
村田 泰彦 木野 賢太郎 飛田 広樹 赤池 拓也 横田 太平
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.75, no.3, pp.407-411, 2009-03-05 (Released:2010-11-30)
参考文献数
6
被引用文献数
8 6

In injection molding, surface defects such as weld-line and silver streaks are serious problems which trouble engineers. It is also known that these surface defects can be prevented by heating the mold cavity surface to above the resin melting point Tm or glass transition point Tg. In this study, we designed and made a rapid heating and cooling mold applying induction heating, which is capable of continuously heating and cooling the cavity surface rapidly. This mold has a cavity insert with coils and cooling channels arranged inside the mold base. Using the mold, heating and cooling molding and normal molding without performing heating and cooling were performed and effects on the external view and surface properties of rapidly heated and cooled molded products were investigated. Observation of the surface of the product molded using this mold showed that in normal molding, the formation of V-shaped weld-lines is seen on the molded product surface. On the other hand, when heating and cooling is performed in molding, no weld-lines are found, and compared to normal molding, a highly glossy molded product surface has been confirmed.
著者
青木 正義 小高 忠男
出版者
公益社団法人 精密工学会
雑誌
精密機械 (ISSN:03743543)
巻号頁・発行日
vol.31, no.368, pp.754-758, 1965-09-05 (Released:2009-06-30)
参考文献数
7
被引用文献数
1 1

In many sorts of electronic devices the cantilever leaf springs are widely used, to switch the contact points. In designing such a spring, it is necessary to have an accurate knowledge cncerning to the force-deflection relationship. The large deflection of a cantilever spring has been studied for a long time. And the solution of the deflection is obtained in the form of elliptic integrals. A practical formula is necessary for the practical designing of the spring, for it takes a long time to solve the elliptic integrals numerically.In this paper, firstly, a modulus of the elliptic integrals is derived as a function of a load by introducing thereversion formula. Secondary, the co-ordinates of the loaded point are represented by elliptic functions. Then, the deflections at a loaded point are obtained as a power series of a load.Similarly, the deflection angle at the loaded point and the practical formula of a deflection curve, in the state of large deflection, is also obtained from the exact solution.
著者
近藤 康雄 山口 顕司 坂本 智
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌論文集 (ISSN:13488724)
巻号頁・発行日
vol.72, no.10, pp.1259-1263, 2006-10-05 (Released:2012-01-13)
参考文献数
9

A bio-chemical treatment system was developed to reutilize the spent water-soluble coolant as a diluent of renewal coolant. The bio-chemical treatment using oil-decomposing microorganisms and a biological activated carbon filtration method showed a high recovery rate of water resource from an emulsion-type coolant. The water-soluble coolant can form the uniform micelle colloid in the recovered water and showed no quality change during the nine months standing at ambient temperature. The processing cost, around 35 yen/L, was equal to or less than current disposal cost. No difference was shown in the chisel and flank wear of machine tool after 100 holes drilling between the water-soluble coolants diluted with recovered water and service water. These facts indicated that the proposed treatment system must be an effective way to reutilize the water-soluble coolant as the diluent of renewal coolant.
著者
柴田 崇徳
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.81, no.1, pp.18-21, 2015-01-05 (Released:2015-01-05)
参考文献数
13
被引用文献数
4 1
著者
鈴木 謙二
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.61, no.1, pp.35-39, 1995-01-05 (Released:2009-07-23)
参考文献数
3
著者
池野 順一
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.83, no.6, pp.514-518, 2017-06-05 (Released:2017-06-06)
参考文献数
2
被引用文献数
4 2
著者
王 俊貞 大月 翔平 高橋 智一 鈴木 昌人 青柳 誠司 大野 泰史 川尻 由美 神崎 務
出版者
公益社団法人 精密工学会
雑誌
精密工学会学術講演会講演論文集 2014年度精密工学会秋季大会
巻号頁・発行日
pp.113-114, 2014-09-01 (Released:2015-03-01)

蚊を模倣した低侵襲性のマイクロニードルを開発するため,蚊の穿刺行動および吸血動作を観察した.本研究では蚊の穿刺対象として、マイクロ流路を有する透明な人工皮膚の開発を行った.この人工皮膚はアガロースとグルコマンナンを主材料とする.
著者
斉藤 奈美子 池野 順一 竹村 貴人
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌論文集 (ISSN:13488724)
巻号頁・発行日
vol.71, no.12, pp.1531-1535, 2005 (Released:2007-05-15)
参考文献数
10

本研究は, 硬脆材料の仕上げ加工において研磨加工と同等以上の創成面品位が得られる研削砥石の開発を目的とする. 開発のヒントを古来より人類が使用してきた天然砥石に求めることにした. 本報では天然砥石の基本的な特徴を構造解析・元素分析によって明らかにした. さらに天然砥石の構造を模した砥石を作製し, その有効性を研削実験により確認した.

1 0 0 0 OA 鋳造の基礎

著者
平塚 貞人
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.84, no.5, pp.427-430, 2018-05-05 (Released:2018-05-05)
参考文献数
1
著者
神谷 好承 岡部 佐規一 横山 恭男
出版者
公益社団法人 精密工学会
雑誌
精密機械 (ISSN:03743543)
巻号頁・発行日
vol.47, no.6, pp.706-711, 1981-06-05 (Released:2009-06-30)
参考文献数
4
被引用文献数
1 1

This paper deals with the motion control of a manipulator or an industrial robot arm. Generally speaking, manipulators or industrial robot arms that are constructed by the open-loop articulated kinematic chains are non-linear dynamic systems and the motion equation is described by the coupling dynamic systems between the connecting chains. So it is not easy to control a manipulator or a robot arm for positioning to the desired place at high speed. In this study, for the high speed motion of a robot arm, we tried to adapt the minimum time control to the motion of robot arm that has two articulated kinematic chains, and found the optimal path to move the robot arm from the initial configulation to the final configulation. This optimal path is very similar to the figure of which we move our own arms. And we showed the way to solve the near-minimum-time control for the multi-input and non-linear dynamic system like a robot arm that is constructed by the open-loop articulated kinematic chains.
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.89, no.1, pp.60-65, 2023-01-05 (Released:2023-01-05)
参考文献数
17