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Journal of the Japan Society of Electrical-machining Engineers最新文献

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Review of Leading-edge Laser Technology 前沿激光技术综述
Journal of the Japan Society of Electrical-machining Engineers Pub Date : 2003-11-28 DOI: 10.2526/JSEME.37.86_10
T. Arai
{"title":"Review of Leading-edge Laser Technology","authors":"T. Arai","doi":"10.2526/JSEME.37.86_10","DOIUrl":"https://doi.org/10.2526/JSEME.37.86_10","url":null,"abstract":"","PeriodicalId":269071,"journal":{"name":"Journal of the Japan Society of Electrical-machining Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133152944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Laser Metal Molding and Cutting Hybrid Machine 激光金属成型和切割混合机
Journal of the Japan Society of Electrical-machining Engineers Pub Date : 2003-11-28 DOI: 10.2526/JSEME.37.86_38
T. Takaoka, T. Yamaoka
{"title":"Laser Metal Molding and Cutting Hybrid Machine","authors":"T. Takaoka, T. Yamaoka","doi":"10.2526/JSEME.37.86_38","DOIUrl":"https://doi.org/10.2526/JSEME.37.86_38","url":null,"abstract":"","PeriodicalId":269071,"journal":{"name":"Journal of the Japan Society of Electrical-machining Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131422801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Overview of Micromachining Characteristics with Femtosecond Lasers 飞秒激光微加工特性综述
Journal of the Japan Society of Electrical-machining Engineers Pub Date : 2003-11-28 DOI: 10.2526/JSEME.37.86_26
H. Horisawa, N. Yasunaga
{"title":"An Overview of Micromachining Characteristics with Femtosecond Lasers","authors":"H. Horisawa, N. Yasunaga","doi":"10.2526/JSEME.37.86_26","DOIUrl":"https://doi.org/10.2526/JSEME.37.86_26","url":null,"abstract":"制御で可能なこと, (3)エネルギー密度が高いので 高速加工が可能なこと, (4)高機能難加工材料の加 工が可能なこと, などである. レーザ光が固体物 質に照射されるとき, 光エネルギーは物質に吸収 されて熱エネルギーに変換される. この過程は, レーザ照射時の(1)物質の光学特性(屈 折率, 吸収率 など), (2)物質の熱物性(熱 拡散率, 比熱など), (3)物質の相変化 ・変態, (4)レーザビーム特性(集 光 特性, 波長, パルス幅, エネルギー, 繰 り返 し周 波数 出力など), (5)光と物質の相互作用, などに 強く依存する1). 従来のNd: YAGレ ーザやCO2レ ー ザを用いた加工法では, 熱歪 ・熱的衝撃によるひび 割れ, レーザ照射点およびその周辺部の溶融 ・蒸発 物の再付着によるデブ リなどの熱影響が避けられ ず, 高品位な微細加工が困難であった. これに対して, 最近の進展が著 しい超短パルス幅 のフェム ト秒 レーザは, 種々の材料に対する微細加 工が試みられ, 実用化に向けた期待が高まってきて いる. フェム ト秒 レーザは, 一般にパルス幅がサブ ピコ秒から数十フェム ト秒の超短パルスレーザを さす. この種のレーザを材料に照射 した場合, 材料 の熱拡散特性時間に比べてパルス幅が十分に短い ため, 光エネルギーを有効に照射部に投入できる. その結果, 照射周辺部への熱影響が局限可能で, 高 精度な微細加工が実現できる. また, レーザ光の電 場強度が非常に高いので, ビームが集光されたとこ ろにのみ空間選択的に多光子吸収, 多光子イオン化 などの非線形作用を誘起することが可能である》7). 近年, 広帯域発振波長のモー ド同期レーザ媒質 (例えば, Ti: Sな ど)で 発振したパルス光をチャー プパルス増幅(Chhped-PulseAmplificadon: CPA)す ることで, テラワット(TW)級 の超短パルス光(最 大パルスエネルギー: 数+mJ, パルス幅: 数+fsec 程度)を 発振させる技術が成熟し, この種のシステ ムが市販されるようになった. 初期(1987~1993 年頃)の システムは, エキシマレーザ励起色素増幅 方式で, 高度な調整技術が要求された.一 方, 現在 市販のシステムは, 装置の調整. 操作も比較的容易 で, これにより基礎研究のみならず加工などの応用 も含めた研究開発が飛躍的な進歩を遂げるように なった3)-7). このような状況の中で, フェム ト秒 レーザを利用 した金属やガラス, セラミックスなどの高機能材料 の微細加工が最近注目を集めている3)-7)・ 本稿では, *東海大 学工学部(〒259 -1292平 塚 市北金 目1117)","PeriodicalId":269071,"journal":{"name":"Journal of the Japan Society of Electrical-machining Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132091381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CO2 Laser Drilling Machine for PCBs 用于pcb的CO2激光钻孔机
Journal of the Japan Society of Electrical-machining Engineers Pub Date : 2003-11-28 DOI: 10.2526/JSEME.37.86_34
Y. Imai, Yasuhiko Iwai
{"title":"CO2 Laser Drilling Machine for PCBs","authors":"Y. Imai, Yasuhiko Iwai","doi":"10.2526/JSEME.37.86_34","DOIUrl":"https://doi.org/10.2526/JSEME.37.86_34","url":null,"abstract":"","PeriodicalId":269071,"journal":{"name":"Journal of the Japan Society of Electrical-machining Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128221234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
EDM at Low Open-Circuit Voltage 低开路电压下的电火花加工
Journal of the Japan Society of Electrical-machining Engineers Pub Date : 2003-07-31 DOI: 10.2526/JSEME.37.85_18
K. Egashira, K. Mizutani
{"title":"EDM at Low Open-Circuit Voltage","authors":"K. Egashira, K. Mizutani","doi":"10.2526/JSEME.37.85_18","DOIUrl":"https://doi.org/10.2526/JSEME.37.85_18","url":null,"abstract":"The possibility of EDM at open-circuit voltages of lower than 30V has been examined using an RC circuit, because low voltages are preferable in terms of machining accuracy; however, machining at such voltages had not been attempted before. EDM of holes in copper is carried out with tungsten electrodes of 15μm or 7μm diameter to investigate the machining rate. At open-circuit voltages of 5V or higher, the average electrode feed speed, which is defined as the feed per machining time, is higher than 5μm/min under certain electrical conditions. Although the machining rate is very low, machining is possible even at an open-circuit voltage of 2V. These voltages are much lower than those usually used for EDM. A tungsten rod of 1μm diameter can be fabricated at an open-circuit voltage of 20V by wire electrodischarge grinding (WEDG), indicating the possibility of future applications of EDM to submicron machining and nanomachining.","PeriodicalId":269071,"journal":{"name":"Journal of the Japan Society of Electrical-machining Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129959999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 41
Fundamental Study on Friction Characteristics of EDMed Surface EDMed表面摩擦特性的基础研究
Journal of the Japan Society of Electrical-machining Engineers Pub Date : 2003-07-31 DOI: 10.2526/JSEME.37.85_24
A. Okada, Y. Uno, Y. Nakashima
{"title":"Fundamental Study on Friction Characteristics of EDMed Surface","authors":"A. Okada, Y. Uno, Y. Nakashima","doi":"10.2526/JSEME.37.85_24","DOIUrl":"https://doi.org/10.2526/JSEME.37.85_24","url":null,"abstract":"","PeriodicalId":269071,"journal":{"name":"Journal of the Japan Society of Electrical-machining Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116123394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Manufacturing of Wire-Drawing Die Using a Removal Method of Heat-Affected Zones by Oxidation of Cemented Carbides 用硬质合金氧化去除热影响区的方法制造拉丝模
Journal of the Japan Society of Electrical-machining Engineers Pub Date : 2003-07-31 DOI: 10.2526/JSEME.37.85_10
T. Tamura, Yoshinobu Kobayashi
{"title":"Manufacturing of Wire-Drawing Die Using a Removal Method of Heat-Affected Zones by Oxidation of Cemented Carbides","authors":"T. Tamura, Yoshinobu Kobayashi","doi":"10.2526/JSEME.37.85_10","DOIUrl":"https://doi.org/10.2526/JSEME.37.85_10","url":null,"abstract":"Heat-affected zones (HAZs) are generated by electrical discharge machining of cemented carbides. A surface modification method using an oxidation treatment of cemented carbides has been proposed as a removal method for the HAZs. The HAZs can be completely removed in the form of oxides through the oxidation treatment. In this study, a wire-drawing die with a bearing diameter of 10 mm was fabricated by wire electrical discharge machining (WEDM). Subsequently, this surface modification method for finishing the die was introduced to improve the die quality and to reduce the die manufacturing time. As a result, the surface integrity of the die is superior to that of the die finished by a conventional removal method. Defects such as cracks partially exist on a polished surface in the latter case. The HAZs are completely removed in 3 minutes by this oxidation treatment. It only takes 20 minutes to polish the die by incorporating this method into the die manufacturing process. The completion time of a wire-drawing die is approximately 50% shorter than that obtained by the conventional removal method.","PeriodicalId":269071,"journal":{"name":"Journal of the Japan Society of Electrical-machining Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116250346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Miniaturization Technology of Machine Tool and Machining 机床与加工小型化技术
Journal of the Japan Society of Electrical-machining Engineers Pub Date : 2003-07-31 DOI: 10.2526/JSEME.37.85_5
N. Morita, K. Ashida
{"title":"Miniaturization Technology of Machine Tool and Machining","authors":"N. Morita, K. Ashida","doi":"10.2526/JSEME.37.85_5","DOIUrl":"https://doi.org/10.2526/JSEME.37.85_5","url":null,"abstract":"1. マイクロ化の潮流 機械技術はメカ トロニクス化, オプ トメカ トロ ニクス化によって, マイクロ化の恩恵を受けっつ 高精度化 ・高能率化を着実に達成 し, マイクロ化 技術の発展を支えてきた. また機械自身をマイク ロ化した「マイクロマシン技術」に関する研究に, 21世 紀産業の種として期待が集まり, マイクロ化 の潮流は, 様々な面から機械技術の革新に拍車を かけ続けるに違いない. とくに近年, 微細な精密部品の製造技術が重要 視されてきている. リソグラフィー的手法では製 造が難しい3次 元構造部品に対して, 超精密でか っ超微細な機械加工の適用が認識され始めてきて いる. 機械加工という単一加工原理でそれが実現 できれば, 材料選択の自由度や工程設計の点で非 常に有利である. その うえ, 小さい部品加工に小 さい加工機を適用できれば, 超精密で超微細な加 工技術としてさらに付加価値は高まる, 本稿では, マイクロ化に関連 して 「加工機械の マイクロ化」と 「機械加工のマイクロ化」を取り 上げる. ちょっとした語順の違いではあるが, 意 味は大きく異なる. 言い換えれば, 前者は 「工作 機械の小型化技術」であり, 後者は 「機械加工に よる微細加工技術」となる. この2つ の技術につ いて, 現状と将来動向を紹介 しながら, 筆者の想 う未来工場のイメージを述べる. 2. マイクロファク トリ 「マイクロファク トリ」 とは, 小さな部品 ・製 品をその大きさに見合った製造設備で製作する超 小型生産工場の概念である. 生産機械を小型化す ることで, 省エネルギー, 省スペース, 省資源化 を図れる. また, 機器の交換や レイアウ ト変更が 容易になり, 製品の変化に柔軟に対応できる. 他 品種少量生産に適 した, 環境負荷の小さな生産シ ステムを構築できるものと期待されている. 工業技術院機械技術研究所 (現, 産総研機械シ ステム部門) は, 1990年 にデスク トップ型のマイ クロファクトリを提案し, 生産機械の小型化効果 に関する研究に着手した. 1994年 度からは, 産技 プロジェクト「マイクロマシン技術の研究開発」1) に取り上げられ, (財)マイクロマシンセンターか ら再委託を受けた企業体および機械技研で, それ ぞれマイクロファク トリの試作開発に取 り組んで","PeriodicalId":269071,"journal":{"name":"Journal of the Japan Society of Electrical-machining Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122217383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of Hybrid EDM System Combining Multispark EDM and Conventional EDM 多火花电火花加工与常规电火花加工相结合的混合电火花加工系统的研制
Journal of the Japan Society of Electrical-machining Engineers Pub Date : 2003-03-25 DOI: 10.2526/JSEME.37.9
Toshiki Kobayashi, M. Kunieda
{"title":"Development of Hybrid EDM System Combining Multispark EDM and Conventional EDM","authors":"Toshiki Kobayashi, M. Kunieda","doi":"10.2526/JSEME.37.9","DOIUrl":"https://doi.org/10.2526/JSEME.37.9","url":null,"abstract":"This paper describes a newly developed hybrid EDM system which is composed of the multispark EDM system and conventional EDM system. Multispark EDM is characterized by higher removal rates and lower energy consumption compared with conventional EDM. However, it was difficult to obtain a continuously stable state with the multispark mode. This hybrid EDM system therefore switches the operation mode from the multispark mode to the conventional mode when the process becomes unstable. Then, if the gap state satisfies the condition under which the multispark mode can work stably, the mode is switched back to the multispark mode. From experiments, it was confirmed that the hybrid system developed works very well even under the machining conditions which make the process unstable with the multispark mode.","PeriodicalId":269071,"journal":{"name":"Journal of the Japan Society of Electrical-machining Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116013125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A Study on Electrochemical Machining Method in Ultrapure Water 超纯水电解加工方法的研究
Journal of the Japan Society of Electrical-machining Engineers Pub Date : 2003-03-25 DOI: 10.2526/JSEME.37.1
Y. Mori, K. Hirose, H. Goto
{"title":"A Study on Electrochemical Machining Method in Ultrapure Water","authors":"Y. Mori, K. Hirose, H. Goto","doi":"10.2526/JSEME.37.1","DOIUrl":"https://doi.org/10.2526/JSEME.37.1","url":null,"abstract":"1. はじめに 物質が原子で構成されている以上, 原子1個 を 単位 とする加工が超精密加工の究極の姿である ことは, 疑う余地の無いことであろう. 筆者(森) は, この信念のもと, 40年 にわたって原子単位の 加工精度 を実現す ることを目的として超精密加 工法の研究 ・開発を行ってきた. その結果として, EEM (Elastic Emission Machinjng)1)2)やP-CVM (Plasma-Chemical Viaporization Machining)3)4)といつ た新 しい超精密加工法が産み出された. これら超 精密加工法の加工原理は, すべて材料表面での化 学反応によってお り, 表面原子が1個 づつ除去さ れてゆく 「物理 ・化学現象」を応用したものであ る. 従って, 従来の機械的 ・熱的加工法の延長線 上に載ったものではなく, 加工物表面の原子 ・電 子の振 る舞いを深 く考察することによって初め て考案することができた, 独創的な加工法 といえ る. 一方, このような化学反応を利用した加工法と","PeriodicalId":269071,"journal":{"name":"Journal of the Japan Society of Electrical-machining Engineers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128254600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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