All issues
Volume 8 (2000)
- Issue 6 Pages 8-
- Issue 5 Pages 5-
- Issue 4 Pages 8-
- Issue 3 Pages 5-
- Issue 2 Pages 5-
- Issue 1 Pages 5-
Volume 8, Issue 2
Displaying 1-7 of 7 articles from this issue
- |<
- <
- 1
- >
- >|
-
7.The Loss function as the management starategy for manufacturing activitiesGenichi Taguchi2000 Volume 8 Issue 2 Pages 5-11
Published: April 01, 2000
Released on J-STAGE: December 24, 2016
JOURNAL FREE ACCESSThe strategy from the viewpoint of Quality Engineering for manufacturing management is to give a monetary evaluation of quality so that they can improve productivity of manufacturing systems. The loss function is the strategy so that manufacturing people can find the balance point of processing speed and quality level due to quality variation. It also enables us to specify tolerances for quality characteristics at final stages. Quality loss function is much better than other measures such as process capabity index or six-sigrna as they are not in terrms of monetary evalution. Management problem to use monetary prediction before shipping is stated in §7.4.
View full abstractDownload PDF (1751K)
-
Takashi Kamoshita, Yoshitaka Sugiyama, Mamoru Hatakeyama, Toshihiro Mu ...2000 Volume 8 Issue 2 Pages 39-45
Published: April 01, 2000
Released on J-STAGE: August 31, 2016
JOURNAL FREE ACCESSIn the world of measurement, such terms as "error" or "precision" have been used to express the reliability of a measuring system. But these terms have not been clearly defined. Recently, a guideline entitled "A Guide to the Expression of Uncertainty in Measurement" was published by ISO for the purpose of internationally unifying the expression. The term "uncertainty," which indicates the reliability of a measuring system, is very important when discussing about the traceability of measurement standards. In quality Engineering, the SN ratio has been used as a scale of measurement error. In this paper, it was discussed in conjunction with uncertainty in measurement.View full abstractDownload PDF (1597K) -
Setsuya Masuda , Kiyoshi Nakazawa2000 Volume 8 Issue 2 Pages 46-52
Published: April 01, 2000
Released on J-STAGE: August 31, 2016
JOURNAL FREE ACCESSIn a super-hard alloy manufacturing process, stress remains in the alloy. Such residual stress causes some destructive phenomena such as fatigue. In order to explain such destructive phenomena, it is necessary to precisely measure the magnitude of residual stress. However, the measuring conditions have been set by the people who participate the measurement based on their expenence. In this paper, the measuring conditions of super-hard alloys using X-ray were optimized. As a result, the factors that affect the measuring conditions were identified, and the variability of measurement was reduced by a factor of 1.3.An additional benefit was that the life of X-ray tnbes were lengthened after lowering the x-ray current.View full abstractDownload PDF (1392K) -
Kazuhiko Sato , Kishio Tamura , Meizo Shirose2000 Volume 8 Issue 2 Pages 53-60
Published: April 01, 2000
Released on J-STAGE: August 31, 2016
JOURNAL FREE ACCESSIn recent years, the quality of copy machines or printers using the electrophotographic system is becoming better and better. As an electro-photographic product manufacturer, we are trying to optimize the developing device and minimize the particle size of developer for quality improvement. In order to optimize the mixing process of developing device, it is generally considered that stabilizing the distribution of charged amount of developer leads to the improvement of print quality. It is therefore important to evaluate the variability of the charged amount of individual toner particles in the developing process as a mean of evaluating mixing function. After the optimization of the developing device, a more stable mixing function in a given developer mixing time was obtained. The evaluation technique developed from this study is being applied to the development of a new developing device.View full abstractDownload PDF (1757K) -
A Software Study for the Future Spacecraft (Part Ⅲ)Rika Matsuda, Yoshiki Ikeda , Takashi Kamoshita, Kazuyuki Tobara2000 Volume 8 Issue 2 Pages 61-67
Published: April 01, 2000
Released on J-STAGE: August 31, 2016
JOURNAL FREE ACCESSThe feasibility of applying Mahalanobis Taguchi System (MTS) to the Fault Diagnosis Program (FDP) is being studied. It is a case study for a future Japanese spacecraft. In our previous papers (Part I and Part II), fault detection and identification using the state estimated errors, which were calculated from the output of a software called the Observer, were examined. .In this paper, the orthogonalization technique of the standard space was examined and applied to our standard space.View full abstractDownload PDF (1354K) -
Shoichi Teshima, Dan Jin, Tomonori Bando, Hisashi Toyoshima, Hiroshi K ...2000 Volume 8 Issue 2 Pages 68-74
Published: April 01, 2000
Released on J-STAGE: August 31, 2016
JOURNAL FREE ACCESSThere are many products such as computers or mobile telephones whose operation buttons or keys are printed with letters. The quality of these printed letters are visually inspected in most cases before shipment to find the defects such as hollows or soils. However, it is difficult to clearly define and quantify the defects because of the defect type, location, size and human error, causing disputes between the buyer and the seller. The problem has not been solved yet. It is therefore necessary to develop an automated inspection method which can quantify the quality of printed letters. In this study, Mahalanobis-Taguchi System was used to construct the Mahalanobis space from normal data. Normally printed letters were pre-selected by inspectors and the Mahalanobis space was calculated from the characteristics which were extracted from letter images. The experimental results agreed well with the results of human inspection.View full abstractDownload PDF (1730K) -
Hiroshi Kobayashi, Yoshikiyo Furuya2000 Volume 8 Issue 2 Pages 75-80
Published: April 01, 2000
Released on J-STAGE: August 31, 2016
JOURNAL FREE ACCESSIn the printers used to print the labels for titles or video titles, thermotransferring type heads are widely used. In our product development of a new head type, Quality Engineering was applied to optimize the printing conditions of the㎜o-transferring printers.View full abstractDownload PDF (1096K)
- |<
- <
- 1
- >
- >|