公开(公告)号：EP1634678A4

公开(公告)日：2007-05-30

申请号：EP04735340

申请日：2004-05-28

申请人： BOSCH CORP ,  NORITAKE CO LTD ,  NORITAKE SUPER ABRASIVE CO LTD

发明人： YUI TAKAYUKI ,  KUBOTA OSAMU ,  FURUKAWA HIDEO ,  KISHIMOTO MASATOSHI ,  UKAI NAOYUKI

IPC分类号： B24D3/18 ,  B24D18/00

CPC分类号： B24D3/18 ,  B24D18/00

摘要： A vitrified grinding wheel having a porosity (desirably 30 to 70 vol.%), a concentration ratio of abrasive grain (desirably 50 to 160), and an abrasive grain size (desirably 10 to 90 mum) based on pre-set grinding efficiency and grinding accuracy, desirably, a grinding accuracy of 0.1 to 1.6 Rz (mum) and a grinding efficiency of 0.1 to 2.0 mm /(mm.sec), and a method of manufacturing the vitrified grinding wheel.

公开(公告)号：EP1634678A1

公开(公告)日：2006-03-15

申请号：EP04735340.4

申请日：2004-05-28

申请人： Bosch Corporation ,  NORITAKE CO., LIMITED ,  Noritake Super Abrasive Co., Ltd

发明人： YUI, Takayuki, Bosch Automotive Systems Corp. ,  KUBOTA, Osamu, Bosch Automotive Systems Corp. ,  FURUKAWA, Hideo, Bosch Automotive Systems Corp. ,  KISHIMOTO, Masatoshi, Noritake Super Abras. Co Ltd ,  UKAI, Naoyuki, Noritake Bonded Abrasive Co. Ltd.

IPC分类号： B24D3/18

CPC分类号： B24D3/18 ,  B24D18/00

摘要： A vitrified grinding wheel having a porosity (preferably 30 to 70 volume percent), a degree of concentration of abrasive grains (preferably 50 to 160) and an abrasive grain diameter (preferably 10 to 90 µ m) based on the preset processing efficiency and processing precision of grinding, preferably based on a processing precision ranging from 0.1 to 1.6 Rz ( µ m) and a processing efficiency ranging from 0.1 to 2.0 mm 3 /(mm • sec), and a method of manufacturing the same.

摘要翻译： 基于预设的处理效率和处理，具有孔隙率（优选为30〜70体积％），磨粒浓度（优选为50〜160）和磨粒直径（优选为10〜90μm）的玻璃化砂轮 优选基于0.1至1.6Rz（μm）的加工精度和0.1至2.0mm 3 /（mm¢秒）的加工效率的研磨精度及其制造方法。

公开(公告)号：EP1462217B1

公开(公告)日：2008-01-09

申请号：EP04007349.6

申请日：2004-03-26

申请人： Noritake Super Abrasive Co., Ltd ,  NORITAKE CO., LIMITED

发明人： Toge, Naoki, c/o Noritake Super Abrasive Co.,Ltd. ,  Inoue, Yasuaki, c/o Noritake Super Abras. Co.,Ltd.

IPC分类号： B24D7/14

CPC分类号： B24B53/017 ,  B24B53/12 ,  B24D7/14

公开(公告)号：EP1462217A1

公开(公告)日：2004-09-29

申请号：EP04007349.6

申请日：2004-03-26

申请人： Noritake Super Abrasive Co., Ltd ,  NORITAKE CO., LIMITED

发明人： Toge, Naoki, c/o Noritake Super Abrasive Co.,Ltd. ,  Inoue, Yasuaki, c/o Noritake Super Abras. Co.,Ltd.

IPC分类号： B24D7/14

CPC分类号： B24B53/017 ,  B24B53/12 ,  B24D7/14

摘要： A grinding wheel having a tool portion formed by firmly fixing diamond grains to an end face of a cup-shaped core by brazing. A circumferentially continuous groove is formed in a substantially central portion of the end face of the core. The abrasive grains are firmly fixed to an end face portion excluding regions near an outer rim and near an inner rim of the end face and near the boundaries with the groove under the condition that, with respect to all the abrasive grains, skirts of a brazing material layer for holding the abrasive grains have a length one or more times an average grain size of the abrasive grains. The provision of the groove in the end face of the core can enhance the capability of ejecting chips that occur during machining; besides, chips can be captured into the groove to preclude the occurrence of scratches resulting from the chips. Moreover, sufficient lengths of skirts of the brazing material layer are secured for all the abrasive grains arranged on the end face of the core, which improves the force for holding the abrasive grains and avoids grain fall-out during machining.

摘要翻译： 一种砂轮，其具有通过钎焊将金刚石颗粒牢固地固定到杯形型芯的端面而形成的工具部分。 在芯部的端面的大致中央部分形成有周向连续的槽。 磨粒牢固地固定在端面部分附近的端面部分上，所述端面部分除外部边缘附近和端面内边缘附近以及靠近与凹槽边界的区域之外，对于所有磨粒，钎焊边缘 用于保持磨粒的材料层的长度是磨粒的平均粒径的一倍或更多倍。 在芯部的端面上设置凹槽可以增强在加工期间发生的排屑的能力; 此外，可以将芯片捕获到凹槽中以防止由芯片引起的划痕的发生。 此外，对于布置在芯的端面上的所有磨粒确保足够长度的钎焊料层的裙部，这提高了用于保持磨粒的力并且避免了在加工期间的颗粒脱落。