Toshihiro Ioi

Burr reduction with a fine-scrape cutter

Abstract In the production field, burr generation is a serious problem. So far, in order to minimize the generation of burr, various approaches have been tried, such as improving the cutting condition, the tool shape, and so on. In this paper, a new fine-scrape (FS) cutter [ Development of new milling cutter for Inconel machining, in: Proceedings of the International Conference on Precision Engineering, 1997, pp. 219–224 ] is used in order to minimize the generation of burr during machining. As a result, the FS cutter has been found to improve productivity, and it is a better tool to reduce the burr generation in the high-speed and high-feed cutting operation.

Analysis of a knowledge‐management‐based process of transferring project management skills

Purpose – The purpose of this paper is to propose a method for the transfer of knowledge and skills in project management (PM) based on techniques in knowledge management (KM).Design/methodology/approach – The literature contains studies on methods to extract experiential knowledge in PM, but few studies exist that focus on methods to convert extracted knowledge into practical knowledge and transfer it to learners. This research proposes a model of PM skills transfer management, which consists of a PM knowledge extraction phase, PM knowledge recognition phase, practical knowledge transfer phase, and practical knowledge evaluation phase, and examines the models effectiveness.Findings – Through multi‐agent simulation (MAS), expert communities for knowledge extraction can be vitalized. A PM skills transfer management maturity model (PMST3M) was proposed that is capable of evaluating PM skills transfer management.Research limitations/implications – The present work could have considered KSM in‐depth with a v...

Study on Visual Evaluation for Barrel Finished Surfaces

In this paper, an intelligent visual evaluation system using a neural network is developed in order to evaluate the barrel finished surfaces. It is well known that the surface integrity after barrel finishing depends on type of finishing machines, nature of the media and the compounds. The integrity of barrel finished surfaces, when different compounds were used, have typically been evaluated by visual inspection of expert workers. It is necessary to introduce the optical qualitative evaluation system instead of visual inspection in an automated inspection line. However, it is very difficult to evaluate the finished surface using image processing and/or other measuring equipment, because of complexity of data analyses for slightly different light reflection data among each finishing condition. As a result, not many papers have been published on the optical evaluation system for the barrel finished surfaces when different compounds were used. The objectives of the paper are to analyze the image of barrel finished surfaces using image processing, and to construct a neural network system which is able to evaluate the finished surface integrity. In this paper, it is found that features of barrel finished surfaces are decided by image analyses. As a result, it is possible to construct a neural network system composed of the finished surface image features as input layer and grades by the sensory test as output layer.

Practical Guidebook for Elementary Engineering Management Education in Finishing Technology

The practice and evaluation of elementary management of technology (hereafter, MOT) education has previously been investigated. It is recognized that elementary MOT education using trading games (hereafter, TG) has great educational effects on the awareness of the importance of MOT skills. On the other hand, a large amount of preparation time and labor is required when elementary MOT education using TG is first introduced into elementary schools. Development of a practical guidebook for elementary engineering management (hereafter, EM) education would likely be a useful educational tool for elementary EM education, and may then be applied in many elementary schools. In this study, a guidebook for elementary EM education is proposed, and its educational effects are verified. The practical application of elementary EM education to the finishing technology will be completed in the future works.

Study on a Positioning Sensor for Human Navigation. Measurement Method of Linear Acceleration and Rotation Angular Acceleration.

In Japan we are going into so called an aging society. A lot of helpers are demanded for helping the aged persons who especially go around outside of houses. A new developing navigational system which measures and indicates the lost positions of the aged would be useful for decreasing the number of the helpers. This paper described about the fundamental study on a sensor of the navigational equipment used on a road. As the result, a nonlinear equation was obtained for getting the three dimensional positions by three linear acclamations calculated by eliminating the centrifugal forces and Coriolis forces from the data measured by six linear accelerometers. These accelerometers are set at symmetrical positions to the device center on the three orthogonal axes, and measure six linear accelerations. The stability of this approach is shown by numerical simulations short term sample waves like rotating motions by mobile robot and a human walking.

Expert Computer System for Barrel Finishing.

This paper treats the expert computer system for selecting barrel finishing operations. The barrel finishing data concerning the barrel machines, the features of workpieces and the finishing conditions, such as the selecting of media and compounds are classified to construct the expert system on the rule base and frame base learning system. The expert system composed of both production system and frame system is developed. The production system of two stages is introduced in the system. The preferable barrel machines can be selected by the first stage system, and the preferable finishing conditions, such as, the selection of media and compounds are decided by the second system. The combination of more than two barrel finishing conditions can be also decided by the system. It is found that the preferable barrel finishing conditions can be obtained by using the expert computer system which is developed in the study, and the verification results coincide fairly well with the experimental results.

Automated inspection system for washings by a neural network

This paper treats the automated inspection system of the surfaces and water in industrial washings by using a neural network. It is found that the features of image processing data for washings can be decided by the texture analyses, and the neural network system can be applied to the estimation system of the industrial washings.

The process planning system for the deburring of castings.

The objective of this research work is to develop a process planning system for deburring of castings In order to develop the system, the deburring processes and operations by manual and robot were analyzed by the motion analysis method It was found that the correlations between the burr generation in the castings and the usage deburring tools existed Furthermore, the correlation could be represented by use of the production rule which was a kind of knowledge representation methods Based on the results, the expert system for process planning which was composed of production rules was developed. The system is able to decide the suitable deburring tools and their operation sequence for each burr by using the knowledge base. Result of this research work shows that the proposed system is useful for the deburring of castings.