Vol.2 No.2 2009
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Research paper : High accuracy three-dimensional shape measurements for supporting manufacturing industries (S. Osawa et al.)−106−Synthesiology - English edition Vol.2 No.2 (2009) the result in the manufacturing process. It is important to maintain the reliability of measurement to increase the value of Japanese products, and I believe the way to achieve this is the traceability system. Creation of this traceability system is a mission of AIST, and I have been engaging in this research by drafting a scenario.2 Background of the issueQuestion and Comment (Mitsuru Tanaka)In the past, there was perhaps one coordinate measuring machine at a large manufacturing company. But now, CMMs are installed in small subcontract factories and in each manufacturing line. How about describing the fact that the demand for reliability at the sites of production is increasing, while on the other hand, there is departure from specialized technology to cut cost of the CMM operator?As background when discussing the contribution of this Full Research to Japanese machine manufacturing businesses, rather than just mentioning “manufacturing,” perhaps you should mention the dependency on Europe and US for precision measuring machines, as well as the emerging industrial countries coming up close behind us.Answer (Sonko Osawa)I added some descriptions in 1 Introduction.3 Explanation of SynthesiologyQuestion and Comment (Mitsuru Tanaka)While carefully explaining the elemental technologies, it is necessary to discuss how they were synthesized to generate the social outcome. For example, in the relationship with public laboratories, why didn’t you take the policy of “diffusing the system in Japan by setting traceability through public labs as the only method”? Why didn’t you take the policy of “rather than AIST participating, calibration services can take the technical exam of the International Laboratory Accreditation Cooperation (ILAC)”?What were the considerations for the selection of objects for international comparison, and what is the effect on Japanese industry? Can you explain them in relation to each elemental technology? I think this is synthesis. Also, it is written in the abstract, “We succeeded in linking the national standard of length to the site of production, by powerfully linking the metrological standard and standardization.” This seems to be very important in synthesis, but there is no description in the main text about this.Answer (Sonko Osawa)With the globalization of economy, international Mutual Recognition Agreements in the metrology fields are concluded, and one-stop service is becoming available by presenting the measurement capacity of the national metrology laboratories of the country. In this situation we believe the scenario shown in Fig. 3 provides the three-dimensional coordinate measurement standard to users most effectively.For the link between standardization and metrological standard, explanations are provided in sections 3.1 and 5.1, and we added the contribution of laser tracker assessment to standardization in section 4.1.AuthorsSonko OsawaCompleted doctorate course of the Graduate School of Engineering, Tokyo Denki University in 1998. Doctor of Engineering. Joined the National Research Laboratory of Metrology, Agency of Industrial Science and Technology in 1998. Worked on research of three-dimensional measurement as visiting research of Physikalisch-Technische Bundesanstalt (PTB) of Germany in 2002~2003. To present, works on three-dimensional shape measurement, geometrical quantity measurement, and their standardization. In this paper, worked on overall three-dimensional shape measurement standard.Toshiyuki TakatsujiCompleted course in metrological engineering at the Graduate School of Engineering, Kobe University in 1990. Joined the National Research Laboratory of Metrology, Agency of Industrial Science and Technology in 1990. Visiting researcher at the National Metrology Laboratory (NML), Commonwealth Scientific and Industrial Research Organisation (CSIRO) of Australia from 1994 to 1996. Obtained doctor’s degree (engineering) in 1999. Currently studies geometrical quantity measurement such as three-dimensional measuring machine and planarity. In this paper, integrated the whole research.Osamu SatoCompleted doctorate at the Graduate School, The University of Tokyo in 2004. Doctor of Engineering. Joined the National Institute of Advanced Industrial Science and Technology in 2004. Studies size and shape measurement using atomic force microscope, coordinate measuring machine, and coordinate measurement system. Also works on standardization of precision assessment for CMM. In this paper, worked on development of remote calibration technology, measurement standard and industrial standardization for digital engineering, and on establishing collaborative relationship with regional public research institutes. Affiliate of the Japan Society for Precision Engineering.Discussion with Reviewers1 Overall evaluationComment (Mitsuru Tanaka, Research Coordinator, AIST)This paper can be positioned as a Full Research to establish the system for ensuring the reliability of geometrical shape measurement, which is important for promoting Japanese machine parts, for strengthening competitiveness, and for technological transfer. I think it is an excellent research with rich contents.Answer (Sonko Osawa)Measurement is an important ingredient of manufacturing. It determines whether the product is manufactured in accordance to the design plan, and can improve the product value by reflecting S. Osawa and O. Sato: Hi sesshoku zahyo sokuteiki hyokaho no kogyo hyojunka (Industrial standardization of noncontact coordinate measuring machine assessment method), Keisoku Hyojun to Keiryo Kanri (Measurement Standards and Metrology Management), 57(2), 2-6 (2007) (in Japanese).[21]

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