公开(公告)号：US5761593A

公开(公告)日：1998-06-02

申请号：US616312

申请日：1996-03-15

Applicant: Ake Ostlund ,  Ulf Oscarsson ,  Per Gustafson ,  Leif Akesson

Inventor： Ake Ostlund ,  Ulf Oscarsson ,  Per Gustafson ,  Leif Akesson

IPC: C22C29/02 ,  B22F7/02 ,  C22C1/05 ,  C22C29/08 ,  C23C14/02 ,  C23C26/00 ,  C21D1/00

CPC classification number: C22C1/051 ,  C22C29/08 ,  B22F2998/00 ,  B22F2999/00 ,  Y10T428/26

Abstract: A cemented carbide insert with improved toughness and resistance against plastic deformation containing WC and cubic phases of carbide and/or carbonitride in a binder phase based on Co and/or Ni with a binder phase enriched surface zone is disclosed. The binder phase content in the insert is 3.5-12 weight-%. In a zone below the binder phase enriched surface zone, the binder phase content is 0.85-1 of the binder phase content in the inner portion of the insert and the content of cubic phases is essentially constant and equal to the content in the inner portion of the insert. The insert is formed by sintering a cemented carbide containing a nitrogen-containing material in a vacuum or inert atmosphere and heat treating the sintered insert in nitrogen at 40-400 mbar at a temperature of 1280.degree.-1430.degree. C. for a time of 5-100 min.

Abstract translation: 公开了一种硬质合金刀片，其具有改进的韧性和抗塑性变形性，其包含基于具有粘结相富集表面区域的Co和/或Ni的粘结相中的WC和立方相的碳化物和/或碳氮化物相。 插入物中的粘结相含量为3.5-12重量％。 在粘结相富集表面区域以下的区域中，粘合剂相含量为插入物内部部分中粘结相含量的0.85-1，立方相的含量基本上恒定，等于其内部含量 插入。 该嵌件通过在真空或惰性气氛中烧结含有含氮材料的硬质合金而形成，并在烧结后的插入物中在40-400毫巴的氮气中在1280〜-1430℃的温度下热处理5次 -100分钟

公开(公告)号：US5484468A

公开(公告)日：1996-01-16

申请号：US192628

申请日：1994-02-07

Applicant: Ake Ostlund ,  Ulf Oskarsson ,  Per Gustafson ,  Leif Akesson

Inventor： Ake Ostlund ,  Ulf Oskarsson ,  Per Gustafson ,  Leif Akesson

IPC: B23B27/14 ,  B22F3/10 ,  B23P15/30 ,  C22C29/08 ,  C23C16/02 ,  C22C29/02

CPC classification number: B22F3/1028 ,  C22C29/08 ,  B22F2998/00 ,  B22F2999/00

Abstract: Cemented carbide inserts are available containing WC and cubic phases of carbide and/or carbonitride in a binder phase based on cobalt and/or nickel with a binder phase enriched surface zone. The binder phase content along a line essentially bisecting the rounded edge surfaces increases toward the edge and cubic phase is present. As a result, the edge toughness of the cutting inserts is improved.

Abstract translation: 硬质合金刀片可用于基于具有粘结相富集表面区域的钴和/或镍的粘结相中的WC和立方相的碳化物和/或碳氮化物。 沿着基本上平分圆形边缘表面的线的粘合剂相含量朝向边缘增加，并且存在立方相。 结果，提高了切削刀片的边缘韧性。