研究者詳細 - 藤原　貴典

Visual Simulation of Grinding Process

M. Sakakura, S. Tsukamoto, T. Fujiwara, I. Inasaki

Intelligent Production Machines and Systems - 2nd I*PROMS Virtual International Conference 3-14 July 2006 107 - 112 2006年

記述言語：英語出版者・発行元：Elsevier Ltd

Grinding is one of the machining methods for finishing that is performed by using a large number of abrasive grains with irregular shapes and random distribution. While this feature enables accurate and high quality machining, it complicates analysis of the grinding process. In order to solve this problem, several computer simulations have been carried out using the Monte Carlo Method. Most of them statically calculate geometric interference between a grain and a workpiece, and have not provided enough achievements for practical applications. This chapter outlines the development of a simulation program based on the elastic behavior model of a grain. The program focuses on the generation process of a workpiece surface, and simulates the interaction of grains with a workpiece, which includes the elastic and plastic deformation and the removal of workpiece material. The simulation result is visualized using a three-dimensional graphics technique. The chapter illustrates an example, which verifies that the simulation program makes it easy to analyze the microscopic grinding phenomena, and can be used as a practical tool for predicting the grinding results and for optimizing grinding parameters. © 2006 Copyright © 2006 Elsevier Ltd. All rights reserved.

DOI： 10.1016/B978-008045157-2/50025-0

Scopus

高精度輪郭研削加工の研究（第3報）－ボールエンド砥石の深切込み研削における研削抵抗解析－

FUNDAMENTAL STUDY ON CROSS AXIS GRINDING METHOD

Takanori Fujiwara, Shinya Tsukamoto, Moriaki Sakakura

Proceedings of the 10th International Research/Expert Conference"Trends in the Development of Machinery and AssociatedTechnology" TMT2006, Barcelona-Lloret de Mar, Spain,11-15 September, 2006 2006年

企業アンケートに見る岡山地域の産学官連携マインド

藤原貴典, 東英男

産学連携学会第4回東京大会講演予稿集 2006年

D社との包括契約

東英男, 藤原貴典

産学連携学会第4回東京大会講演予稿集 2006年

3D Simulation of Surface Generation in Grinding

Moriaki SAKAKURA, Shinya TSUKAMOTO, Takanori FUJIWARA, Ichiro INASAKI

Proceedings of the 9th CIRP International Workshop on Modeling of machining Operation 2006年

藤原貴典, 塚本真也, 黒江栄光, 中島利勝

精密工学会誌 71 ( 9 ) 1125 - 1130 2005年

記述言語：日本語出版者・発行元：公益社団法人精密工学会

ボールエンド砥石作用面上に発生する研削抵抗成分を理論的な解析により定式化した後, ピン型モデル実験により作用面上の研削抵抗分布の実測に成功した. また, 薄板寿命モデル実験で砥石切れ味劣化の影響を実験的に検討した. これらの知見を基に, 深切込み研削過程における砥石の損傷機構を解析するために必須の研削抵抗の予測手法を確立した.

DOI： 10.2493/jspe.71.1125

その他リンク： https://jlc.jst.go.jp/DN/JALC/00293650043?from=CiNii

Analysis of the grinding mechanism with wheel head oscillating type CNC crankshaft pin grinder

T Fujiwara, S Tsukamoto, M Miyagawa

ADVANCES IN ABRASIVE TECHNOLOGY VIII 291-292 163 - 168 2005年

記述言語：英語出版者・発行元：TRANS TECH PUBLICATIONS LTD

In this study, the crankshaft pin grinding mechanism, which is carried out with wheel head oscillating type CNC crankshaft pin grinder, is theoretically analyzed. In order to maintain grinding process, the pin rotates and also rocks along wheel working surface, because the wheel head oscillates with journal rotation. Then, it is made clear that cylindrical plunge grinding process progresses in the pin grinding process for the first time. Therefore, grinding speed ratio, which is defined as ratio of substantial pin surface speed to wheel surface speed, is firstly formulated. Secondly, undeformed chip size generated by a grain is estimated with the grinding velocity ratio. Finally, the grinding performance is predicted with experimental equations, which obtained previous study. By this simulation, it is made clear that dimensional accuracy and also surface roughness vary on whole of the pin surface with constant journal rotation grinding method. On the contrary, deviations of both the dimensional accuracy and the surface roughness are reduced with controlled speed ratio grinding method, in which journal rotation speed is adequately controlled.

Web of Science

高精度輪郭研削加工の研究（第２報）－ボールエンド砥石による幾何学的切りくず形状の解析－

岡山県の産学官連携を推進する協働１６事業について

藤原貴典

産学連携学会第３回徳島大会講演予稿集 2005年

ＡｎａｌｙｓｉｓｏｆｔｈｅＧｒｉｎｄｉｎｇＭｅｃｈａｎｉｓｍｗｉｔｈＷｈｅｅｌＨｅａｄＯｓｃｉｌｌａｔｉｎｇＴｙｐｅＣＮＣＣｒａｎｋｓｈａｆｔＰｉｎＧｒｉｎｄｅｒ

Takanori FUJIWARA, Shinya TSUKAMOTO, Masahiro MIYAGAWA

ＫｅｙＥｎｇｉｎｅｅｒｉｎｇＭａｔｅｒｉａｌ 291-292 163 - 168 2005年

１００社訪問キャラバン隊事業に見られる岡山県下の産学官連携の実態と課題

藤原貴典, 新倉正和, 飯田永久, 佐野公一郎, 畠平泰彦, 三島佳洋, 三宅昇

産学連携学会第３回徳島大会講演予稿集 2005年

地域企業技術者リカレント教育の取組み

藤原貴典

産学連携学会第３回徳島大会講演予稿集 2005年

カムおよびクランクシャフト・ピンの研削機構解析と高精度研削加工法の提案

藤原貴典, 宮川正寛, 塚本真也, 吉川満雄

第９回岡山リサーチパーク研究・展示発表会要旨集 2005年

地域の企業技術者を対象とする振動技術の体系的リカレント教育の試み

古池治孝, 松浦啓克, 則次俊郎, 藤原貴典

第９回岡山リサーチパーク研究・展示発表会要旨集 2005年

わかりやすい研究シーズ発信方法－研究シーズ集作成のアプローチ例－

藤原貴典, 松浦啓克

産学連携学会第３回徳島大会講演予稿集 2005年

産学連携支援情報の発信－ワンストップを実現するために－

藤原貴典, 松浦啓克, 山口友絵

第９回岡山リサーチパーク研究・展示発表会要旨集 2005年

ロール研究会の紹介

松浦啓克, 則次俊郎, 藤原貴典, 古池治孝

第９回岡山リサーチパーク研究・展示発表会要旨集 2005年

国立大学における産学官連携活動について

藤原貴典

第８回岡山リサーチパーク合同研究発表会特別講演会・分科会研究発表要旨 2004年

藤原貴典, 塚本真也, 黒江栄光, 中島利勝

精密工学会誌 70 ( 2 ) 251 - 256 2004年

記述言語：日本語出版者・発行元：公益社団法人精密工学会

In contour grinding process with ball-end grinding wheel, successive cutting point spacing and also wheel peripheral speed change continuously on a working wheel surface. And these parameters will have an influence on grinding mechanism. Then, in order to make grinding mechanism clear, undeformed chip shape is theoretically analyzed in this paper. Fundamental relationships about substantial parameters, which represent the undeformed chip shape, such as chip thickness, chip length, interference angle and cross-sectional chip area, are theoretically analyzed. Then, in order to obtain these parameters, numerical simulation method is established. The undeformed chip shape is symmetrical form to rotational angle of cutting edge, and is extremely longer and also thinner than that in ordinary external cylindrical plunge grinding. Effects of tool and grinding conditions on the undeformed chip shape are investigated, and it made clear that an increase of wheel peripheral surface speed should be reduce cutting force affected on a grain. Furthermore, grinding force distribution on a wheel working surface is predicted considering with the chip thickness and the wheel peripheral speed.

DOI： 10.2493/jspe.70.251

研削加工における最新計測制御技術（２１）－タッチセンシング技術－

その他リンク： https://jlc.jst.go.jp/DN/JALC/00385386119?from=CiNii

地域共同研究センター支援組織の活動に関する考察（第２報）－ロール製作技術研究会活動－

松浦啓克, 藤原貴典

産学連携学会第２回大会講演予稿集 2004年

ＤＥＶＥＬＯＰＭＥＮＴＯＦＴＯＵＣＨＳＥＮＳＯＲＢＡＳＥＤＯＮＧＲＩＮＤＩＮＧＦＬＵＩＤＳＰＯＵＴＩＮＧＰＨＥＮＯＭＥＮＯＮ

FUJIWARA TAKANORI, TSUKAMOTO SHINYA, NISHII ATSUHIKO

７ｔｈＩｎｔｅｒｎａｔｉｏｎａｌＣｏｎｆｅｒｅｎｃｅｏｎＰｒｏｇｒｅｓｓｏｆＭａｃｈｉｎｉｎｇＴｅｃｈｎｏｌｏｇｙ 555 - 560 2004年

地域共同研究センター支援組織の活動に関する考察（第１報）－活動の実績と問題点および活性化の試み－

藤原貴典, 松浦啓克

産学連携学会第２回大会講演予稿集 2004年

研削加工における最新計測制御技術（２４）－表面粗さ制御研削法－

吉川満雄, 塚本真也, 大橋一仁, 藤原貴典

機械の研究 Vol.56 No.9 p.993-1000 2004年

大橋一仁, 塚本真也, 藤原貴典, 吉川満雄

機械の研究 Vol.56 No.10 p.1098-1106 ( 10 ) 1098 - 1106 2004年

大橋一仁, 塚本真也, 藤原貴典, 吉川満雄

機械の研究 Vol.56,No.7,p. - . ( 7 ) 799 - 808 2004年

研削加工における最新計測制御技術（２３）―ファジィ理論による知能的制御研削加工―

塚本真也, 大橋一仁, 藤原貴典, 吉川満雄

機械の研究第56巻、第8号、p.890-898 2004年

研削加工における最新計測制御技術（２０）－研削液の冷却性能と潤滑性能の計測技術－

塚本真也, 大橋一仁, 吉川満雄, 藤原貴典

機械の研究 Vol.56,No.5,p.595-602 2004年

藤原貴典, 塚本真也, 大橋一仁, 吉川満雄

機械の研究 Vol.56,No.6,688-696 ( 6 ) 688 - 696 2004年

ＤｅｖｅｌｏｐｍｅｎｔｏｆＨｉｇｈＰｒｅｃｉｓｉｏｎＣｏｎｔｏｕｒＧｒｉｎｄｉｎｇＭｅｔｈｏｄｕｎｄｅｒＣｏｎｓｉｄｅｒａｔｉｏｎｗｉｔｈｂｏｔｈＣｕｒｖａｔｕｒｅＲａｄｉｕｓＣｈａｎｇｅｏｆＷｏｒｋｐｉｅｃｅａｎｄＴｈｅｒｍａｌＤｅｆｏｒｍａｔｉｏｎｏｆＭａｃｈｉｎｅＳｔｒｕｃｔｕｒｅ

Shinya TSUKAMOTO, Takanori FUJIWARA, Toshikatsu NAKAJIMA

ＩｎｔｅｒｎａｔｉｏｎａｌＣｏｎｆｅｒｅｎｃｅｏｎＬｅａｄｉｎｇＥｄｇｅＭａｎｕｆａｃｔｕｒｉｎｇｉｎ２１ｓｔＣｅｎｔｕｒｙ 2003 269 - 274 2003年

記述言語：英語出版者・発行元：一般社団法人日本機械学会

In contour grinding, grinding force varies in a complex way, because the curvature radius of a workpiece varies and the real depth of cut is also influenced by the thermal deformation of a machine structure. Since low stiffness tools are generally used in contour grinding, the fluctuation of a grinding force results in a lower machining accuracy. In this study, therefore, in order to establish the high precision contour grinding method, the reference position correct sensor is developed to compensate the thermal deformation of a machine structure, and the controlled normal force grinding technique is proposed to restrain the fluctuation of a normal grinding force. High performance contour grinding method, with which both constant surface roughness and high dimensional accuracy can be obtained in any curvature radius of a workpiece, is developed by using the controlled normal force grinding method with the reference position correct sensor.

高精度輪郭研削加工の研究（第１報）－工作物曲率変化と機械熱変形の影響－,

塚本真也, 大橋一仁, 藤原貴典, 吉川満雄

機械の研究（養賢堂）第55巻・第12号 ( 12 ) 1289 - 1296 2003年

インターネットで提供される産学官連携支援情報について

藤原貴典

産学連携学会第１回大会講演予稿集 2003年

ＡｎａｌｙｓｉｓｏｆｔｈｅＣａｍＧｒｉｎｄｉｎｇＭｅｃｈａｎｉｓｍｗｉｔｈａＣＮＣＣａｍＧｒｉｎｄｅｒ

Takanori FUJIWARA, Shinya TSUKAMOTO

ＫｅｙＥｎｇｉｎｅｅｒｉｎｇＭａｔｅｒｉａｌｓ 2003年

機械加工支援装置の紹介－動力計と機械熱変形補正センサの提案－

藤原貴典

産学連携学会第１回大会講演予稿集 2003年

中島利勝, 藤原貴典, 塚本真也, 谷由将和, 山田龍宙

精密工学会誌 67 ( 4 ) 581 - 585 2001年

記述言語：日本語出版者・発行元：公益社団法人精密工学会

In order to establish the high precision contour grinding method, the reference position correct sensor is first developed for compensating the thermal deformation of a machine structure, and then the controlled normal force grinding method is developed to control a fluctuation ofa normal grinding force. Main conclusions obtained in this study are as follows : (1) It is made possible to correct the error of wheel depth of cut accurately, with using developed reference position correct sensor. (2) The controlled normal force grinding technique is developed, through the analysis of the feed rate setting conditions correspond to the curvature variation of a workpiece. (3) High performance contour grinding method, with which both constant surface roughness and high dimensional accuracy can be obtained in any curvature radius of a workpiece, is developed by using the controlled normal force grinding method incorporate the reference position correct sensor.

DOI： 10.2493/jjspe.67.581

舶用ディーゼル機関におけるセラミクス溶射皮膜の初期なじみ性向上

その他リンク： https://jlc.jst.go.jp/DN/JALC/00073175780?from=CiNii

地引達弘, 田中正紀, 藤原貴典, 久谷益士郎

日本舶用機関学会誌 32 ( 12 ) 904 - 914 1997年12月

記述言語：日本語出版者・発行元：公益社団法人日本マリンエンジニアリング学会

The partial contacting wear test of spray coated ceramics was carried out by using pin-on-disk type wear testing machine. The test results of spray coated ceramics with no treatment were compared with that of Ni-P + PTFE plated spray coated ceramics. And observation of wear surface was carried out using together some methods of observation in order to analyze the wear surface in initial break-in condition quantitatively.<BR>The main results are in the following : Spray coated ceramics was worn abnormally after partial contacting wear test, but Ni-P + PTFE plated spray coated ceramics was worn normally, protecting from the damage by partial contacting. Phenomenon of surface break-in condition can be evaluated quantitatively by statistical treatment of wear surface profile.

DOI： 10.5988/jime1966.32.904