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High precision gear shaving - some improvements for shaving cutter
324
Abstracts
accuracy of preceding process. @ abnormal involute error developed on the teeth flanks after honing, and @ an increase in cost due to not only additional process but also high cutting tool cost. In conjunction with the introduction of honing for the new Familia, these problems were solved by developing a honing machine and elucidating the principles of tooth engagement for internal skew gears. 9535747 High Precision Gear Shaving - Some Improvements For Shaving Cutter Yasuharu Onishi, Teiichiro Ishihara (Fuji Heavy Industries Ltd.) To realize the stable production of high precision gears required for the silent transmission units by the shaving process in the mass production line, we have improved some matters mainly about the shaving cutters in the gear shaving process. In the process of investigation, we noticed the machinability and rigidity of the cutter blades examined the best value of them to obtain high precision of the tooth surface profile and recognized the effects among the actual gear cutting. 9535756 Flexible Machining Line for Automatic Transmission Case Tetsuro Miki, Shinya Nakao (Mitsubishi Motors Corporation) On starting to produce our new automatic transmission “I N V E C S -11” last autumn, we made various machining and assembly lines based on the concept to make “New Generation production lines-flexible, large production volume lines adapted both Volume Change and Wide variations”. Here we introduce our new transmission case machining line, especially following 4 points. BACKGROUNDS, NEEDS, when line planed, SYSTEMS and EQUIPMENTS to realize our new concept. Effect of Oil Hole Drill at High Speed Cutting - As for 9535765 Drill Shape and Coolant System Hiroshi Oozeki, Hideo Hasegawa, Kazuo Honma, Tadashi Hatsuya (Isuzu Motors Ltd.) Alminum is Often Applied in Car Parts in Recent Years. Progress of Tooling, Holder, Coolant System and Machine Tool Technology have made it Possible to do Successfully High Speed Drilling of Alminum. Inner Coolant System, which is of Considerable use, is being Applied to High Speed Drilling. But a Detailed Analysis is not done about the Effect of Oil Hole Drill at High Speed Drilling. This Report Analyse the Effect of Oil Hole Drill at High Speed Drilling as for Drill Shape and Coolant System. 9535774 Efficient Cutting using Coated Solid Endmill - High Speed and High Feed cutting using Solid Endmill of (Ti,AlAI)N Coatings Takeshi Hirose (Mitsubishi Materials Corporation) Until recently, we have always had a serious problem of chipping in machining steel and cast iron with cemented carbide solid endmill. However, up-to-date endmills with improved geometries and material grade enable us to fabricate steel and cast iron more efficiently. We have also succeeded in developing an advanced cemented carbide solid endmill. They feature (Ti,Al)N coating and an ideal geometries for manufacturing high hardness materials. This paper reports and examines the results of several experiments of our endmill under various conditions. 9535783 Development of Automatic Measuring Machine for Tapped Holes Kiyoshi Hasegawa, Ryuji Fukada (Nissan Motor Co., Ltd.) The inspection of tapped holes at the machining line has traditionally been done manually using a thread plug gauge. Consequently, such inspection process requires a considerable number of man-hours and is not suitable for quantitative measurements. An automatic measuring machine for tapped holes has been developed that adopts a new non-contact procedure to overcome these drawbacks. This paper describes the measuring principle of the new machine and presents typical examples of its application. It also describes a portable measuring device that is now being developed based on the new automatic measuring machine.
9535792 High Speed Milling of Steel and Tool Life - Tool Life of CBN Ball End Mill Tadahiro Ikeda, (Niigata Engineering Co., Ltd.), Toshitaka Matsuoka, (Matsuoka Engineering Consultants Office Ltd.), Takeo Nakagawa (Institute of Industrial Science, University of Tokyo) The authors are investigating to establish high speed finish milling technique with minute pick-feed command for curved surface of die & mould parts at 1000 m/min cutting speed and 10 m/min feed rate, which can reduce manual polishing process consequently. New type ball end mill for above mentioned purpose is developed and is proved to obtain sufficient tool life, cutting surface roughness. 9535800 Development of Steel Honeycomb Structure into Body and Parts Kunio Ohya, (Honda R&D Co. Ltd), Toshifumi Thushihasi (The Yokohama Rubber Co. Ltd) The basic feature of the Honeycomb structure are light weight, high rigidity and energy absorptivity. In order to apply this feature to vehicle body and parts. We developed and hold for the new technologys (Zinc coated steel foil honeycomb product process voluntary crush forming body paint operation bonding), and certified effective elementary test data. 9535819 Estimation of Model Parameters for Reconstructing Traffic Accidents Hadji Hosseinlou M., Nakatsuji T., Hagiwara T. (Hokkaido University) Abstract. The main purpose of this study is to present a method how to estimate model parameters for reconstructing of traffic accidents; the normal and tangential restitution coefficients at impact and the friction coefficient, slip ratio and steering angle after impact. Box’s complex algorithm was applied to this estimation. In order to examine the validity of this method, some artificial and actually observed traffic accident data were analyzed. From this study, it was concluded that the method was effective in estimating impact and driving simulation parameters. Three-dimensional Behavior of Vehicle at Oblique Side 9535828 Collision - Computer Simulation Using Dynamical Model Makoto Abe, Masaaki Morisawa, Kazuhiro Arai (Musashi Institute of Technology), Takeshi B. Sato (Keio Gijuku University) This study examined the three-dimensional behavior of two vehicles when they collided obliquely during running at the same speed, by a computer simulation using dynamical models. The behavior was pursued till both vehicles came to a complete stop. Computational result well agreed with the real experiment data. Then, both vehicles’ deceleration, max, roll angles, deformation forms, etc. till at the time of stopping were calculated when the collision speed, angle and position were changed. It was found that the results of both vehicles’ deformation forms were differ qualitatively by a starting condition of collision. 9535837 Simulation of Cervical Motion Due to Head Inertia Loading in Rear-End Collisions Tomoyasu Matsushita, Takeshi B. Sato (Keio University), Kiyoshi Hirabayashi (Keio Junior College of Nursing) A two-dimensional mathematical model of the crania-cervical complex was developed to predict a dynamic behaviour of the human cervical motion during low speed rear-end collisions, and may provide an insight into the mechanism of neck injury. This model incorporated mechanical analogies for the intervertebral disks, ligaments and articular facets. An examination of the loading distribution in the cervical spine showed that maximums were reached during full extension phase and were of greatest magnitude in the C4/C5 region. 9535846 Evaluation of Rear-End Collision Avoidance System Nobuaki Takubo (National Research Institute of Police Science) Aim of this study is to evaluate influence of a collision avoidance system(CAS) on rear-end collision. In this study, the CAS means automatic braking systems which work for longitudinal vehicle motion. We simulate effect of rear-end collision avoidance of the vehicle with CAS included in a group of some vehicles without CAS, using Monte Carlo
Abstracts
accuracy of preceding process. @ abnormal involute error developed on the teeth flanks after honing, and @ an increase in cost due to not only additional process but also high cutting tool cost. In conjunction with the introduction of honing for the new Familia, these problems were solved by developing a honing machine and elucidating the principles of tooth engagement for internal skew gears. 9535747 High Precision Gear Shaving - Some Improvements For Shaving Cutter Yasuharu Onishi, Teiichiro Ishihara (Fuji Heavy Industries Ltd.) To realize the stable production of high precision gears required for the silent transmission units by the shaving process in the mass production line, we have improved some matters mainly about the shaving cutters in the gear shaving process. In the process of investigation, we noticed the machinability and rigidity of the cutter blades examined the best value of them to obtain high precision of the tooth surface profile and recognized the effects among the actual gear cutting. 9535756 Flexible Machining Line for Automatic Transmission Case Tetsuro Miki, Shinya Nakao (Mitsubishi Motors Corporation) On starting to produce our new automatic transmission “I N V E C S -11” last autumn, we made various machining and assembly lines based on the concept to make “New Generation production lines-flexible, large production volume lines adapted both Volume Change and Wide variations”. Here we introduce our new transmission case machining line, especially following 4 points. BACKGROUNDS, NEEDS, when line planed, SYSTEMS and EQUIPMENTS to realize our new concept. Effect of Oil Hole Drill at High Speed Cutting - As for 9535765 Drill Shape and Coolant System Hiroshi Oozeki, Hideo Hasegawa, Kazuo Honma, Tadashi Hatsuya (Isuzu Motors Ltd.) Alminum is Often Applied in Car Parts in Recent Years. Progress of Tooling, Holder, Coolant System and Machine Tool Technology have made it Possible to do Successfully High Speed Drilling of Alminum. Inner Coolant System, which is of Considerable use, is being Applied to High Speed Drilling. But a Detailed Analysis is not done about the Effect of Oil Hole Drill at High Speed Drilling. This Report Analyse the Effect of Oil Hole Drill at High Speed Drilling as for Drill Shape and Coolant System. 9535774 Efficient Cutting using Coated Solid Endmill - High Speed and High Feed cutting using Solid Endmill of (Ti,AlAI)N Coatings Takeshi Hirose (Mitsubishi Materials Corporation) Until recently, we have always had a serious problem of chipping in machining steel and cast iron with cemented carbide solid endmill. However, up-to-date endmills with improved geometries and material grade enable us to fabricate steel and cast iron more efficiently. We have also succeeded in developing an advanced cemented carbide solid endmill. They feature (Ti,Al)N coating and an ideal geometries for manufacturing high hardness materials. This paper reports and examines the results of several experiments of our endmill under various conditions. 9535783 Development of Automatic Measuring Machine for Tapped Holes Kiyoshi Hasegawa, Ryuji Fukada (Nissan Motor Co., Ltd.) The inspection of tapped holes at the machining line has traditionally been done manually using a thread plug gauge. Consequently, such inspection process requires a considerable number of man-hours and is not suitable for quantitative measurements. An automatic measuring machine for tapped holes has been developed that adopts a new non-contact procedure to overcome these drawbacks. This paper describes the measuring principle of the new machine and presents typical examples of its application. It also describes a portable measuring device that is now being developed based on the new automatic measuring machine.
9535792 High Speed Milling of Steel and Tool Life - Tool Life of CBN Ball End Mill Tadahiro Ikeda, (Niigata Engineering Co., Ltd.), Toshitaka Matsuoka, (Matsuoka Engineering Consultants Office Ltd.), Takeo Nakagawa (Institute of Industrial Science, University of Tokyo) The authors are investigating to establish high speed finish milling technique with minute pick-feed command for curved surface of die & mould parts at 1000 m/min cutting speed and 10 m/min feed rate, which can reduce manual polishing process consequently. New type ball end mill for above mentioned purpose is developed and is proved to obtain sufficient tool life, cutting surface roughness. 9535800 Development of Steel Honeycomb Structure into Body and Parts Kunio Ohya, (Honda R&D Co. Ltd), Toshifumi Thushihasi (The Yokohama Rubber Co. Ltd) The basic feature of the Honeycomb structure are light weight, high rigidity and energy absorptivity. In order to apply this feature to vehicle body and parts. We developed and hold for the new technologys (Zinc coated steel foil honeycomb product process voluntary crush forming body paint operation bonding), and certified effective elementary test data. 9535819 Estimation of Model Parameters for Reconstructing Traffic Accidents Hadji Hosseinlou M., Nakatsuji T., Hagiwara T. (Hokkaido University) Abstract. The main purpose of this study is to present a method how to estimate model parameters for reconstructing of traffic accidents; the normal and tangential restitution coefficients at impact and the friction coefficient, slip ratio and steering angle after impact. Box’s complex algorithm was applied to this estimation. In order to examine the validity of this method, some artificial and actually observed traffic accident data were analyzed. From this study, it was concluded that the method was effective in estimating impact and driving simulation parameters. Three-dimensional Behavior of Vehicle at Oblique Side 9535828 Collision - Computer Simulation Using Dynamical Model Makoto Abe, Masaaki Morisawa, Kazuhiro Arai (Musashi Institute of Technology), Takeshi B. Sato (Keio Gijuku University) This study examined the three-dimensional behavior of two vehicles when they collided obliquely during running at the same speed, by a computer simulation using dynamical models. The behavior was pursued till both vehicles came to a complete stop. Computational result well agreed with the real experiment data. Then, both vehicles’ deceleration, max, roll angles, deformation forms, etc. till at the time of stopping were calculated when the collision speed, angle and position were changed. It was found that the results of both vehicles’ deformation forms were differ qualitatively by a starting condition of collision. 9535837 Simulation of Cervical Motion Due to Head Inertia Loading in Rear-End Collisions Tomoyasu Matsushita, Takeshi B. Sato (Keio University), Kiyoshi Hirabayashi (Keio Junior College of Nursing) A two-dimensional mathematical model of the crania-cervical complex was developed to predict a dynamic behaviour of the human cervical motion during low speed rear-end collisions, and may provide an insight into the mechanism of neck injury. This model incorporated mechanical analogies for the intervertebral disks, ligaments and articular facets. An examination of the loading distribution in the cervical spine showed that maximums were reached during full extension phase and were of greatest magnitude in the C4/C5 region. 9535846 Evaluation of Rear-End Collision Avoidance System Nobuaki Takubo (National Research Institute of Police Science) Aim of this study is to evaluate influence of a collision avoidance system(CAS) on rear-end collision. In this study, the CAS means automatic braking systems which work for longitudinal vehicle motion. We simulate effect of rear-end collision avoidance of the vehicle with CAS included in a group of some vehicles without CAS, using Monte Carlo