公开(公告)号：US07897247B2

公开(公告)日：2011-03-01

申请号：US11601845

申请日：2006-11-20

Applicant: Per Mårtensson ,  Per Gustafson

Inventor： Per Mårtensson ,  Per Gustafson

IPC: B32B9/00

CPC classification number: C23C30/005 ,  C23C16/30 ,  C23C16/32 ,  C23C16/34 ,  C23C16/403 ,  C23C16/56 ,  Y10T428/24975 ,  Y10T428/252 ,  Y10T428/265

Abstract: The present invention discloses coated cutting tool inserts particularly useful for turning of nodular cast iron preferably at high speeds, comprising a cemented carbide substrate comprising from about 5 to about 9 wt-% Co and from about 1 to about 5 wt % cubic carbides and balance WC of 86-94 wt-%, and a coating comprising a first layer of TiCxNyOz with equiaxed grains, a layer of TiCxNyOz with a thickness of less than about 10 to about 15 μm with columnar grains, a layer of TiCxNyOz with a thickness of from about 0.1 to about 2 μm and with equiaxed or plate-like grains, a layer of α-Al2O3 with thickness from about 3 to about 8 μm, an outer layer of a multilayered structure of TiN+TiC with TiC being the outermost layer and a total thickness of from about 0.5 to about 2 μm and wherein the outer coating layer has been removed in the edge line and on the rake face so that the α-Al2O3 layer is on top along the cutting edge line and on the rake face and the outer TiC layer is the top layer on the flank face.

Abstract translation: 本发明公开了一种特别适用于高速转动球墨铸铁的涂层切削工具刀片，包括硬质合金基体，其包括约5至约9重量％的Co和约1至约5重量％的立方碳化物和余量 WC为86-94重量％，以及包含具有等轴晶粒的TiC x N y O z的第一层的TiC x N y O z层，具有厚度小于约10至约15μm的具有柱状晶粒的TiC x N y O z层， 约0.1至约2μm，并且具有等轴或板状颗粒，厚度为约3至约8μm的α-Al 2 O 3层，TiN + TiC与TiC的多层结构的外层为最外层， 总厚度为约0.5至约2μm，并且其中外涂层已经在边缘线和前刀面上被去除，使得α-Al 2 O 3层沿着切削刃线和前刀面在顶部，并且 外部TiC层是顶部 层在侧面。

公开(公告)号：US20070134517A1

公开(公告)日：2007-06-14

申请号：US11601845

申请日：2006-11-20

Applicant: Per Martensson ,  Per Gustafson

Inventor： Per Martensson ,  Per Gustafson

IPC: B32B9/00 ,  B32B19/00 ,  C23C16/00

CPC classification number: C23C30/005 ,  C23C16/30 ,  C23C16/32 ,  C23C16/34 ,  C23C16/403 ,  C23C16/56 ,  Y10T428/24975 ,  Y10T428/252 ,  Y10T428/265

Abstract: The present invention discloses coated cutting tool inserts particularly useful for turning of nodular cast iron preferably at high speeds, comprising a cemented carbide substrate comprising from about 5 to about 9 wt-% Co and from about 1 to about 5 wt % cubic carbides and balance WC of 86-94 wt-%, and a coating comprising a first layer of TiCxNyO, with equiaxed grains, a layer of TiCxNyOz with a thickness of less than about 10 to about 15 μm with columnar grains, a layer of TiCxNyOz with a thickness of from about 0.1 to about 2 Em and with equiaxed or plate-like grains, a layer of α-Al2O3 with thickness from about 3 to about 8 μm, an outer layer of a multilayered structure of TiN+TiC with TiC being the outermost layer and a total thickness of from about 0.5 to about 2 μm and wherein the outer coating layer has been removed in the edge line and on the rake face so that the α-Al2O3 layer is on top along the cutting edge line and on the rake face and the outer TiC layer is the top layer on the flank face.

Abstract translation: 本发明公开了一种特别适用于高速转动球墨铸铁的涂层切削工具刀片，包括硬质合金基体，其包括约5至约9重量％的Co和约1至约5重量％的立方碳化物和余量 86-94重量％的WC，以及包含TiC x N N y O O的第一层的涂层，其具有等轴晶粒，TiC < 具有小于约10至约15μm的厚度的柱状晶粒，TiC层N 1 N 2 O 3 具有约0.1至约2埃的厚度和等轴或板状颗粒的α-Al 2层的一部分 具有约3至约8μm厚度的TiN + TiC的多层结构的外层，TiC的外层为最外层，总厚度为约0.5至约2μm， 其中外围涂层已经在边缘线和前刀面上被去除 α-Al 2 O 3层沿着切割边缘线和前刀面在顶部，外部TiC层是在侧面上的顶层。

公开(公告)号：US5549980A

公开(公告)日：1996-08-27

申请号：US258598

申请日：1994-06-10

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 ,  B32B15/04

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.

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。

公开(公告)号：US20050025657A1

公开(公告)日：2005-02-03

申请号：US10873234

申请日：2004-06-23

Applicant: Per Gustafson ,  Susanne Norgren ,  Mats Waldenstrom

Inventor： Per Gustafson ,  Susanne Norgren ,  Mats Waldenstrom

IPC: B23B27/14 ,  B22F3/10 ,  C22C1/05 ,  C22C29/08

CPC classification number: C22C1/051 ,  B22F2005/001 ,  B22F2998/10 ,  B22F2999/00 ,  C22C29/08 ,  B22F9/04 ,  B22F3/1007 ,  B22F2201/02

Abstract: According to the present invention there is provided a method of making a finegrained tungsten carbide—cobalt cemented carbide comprising mixing, milling according to standard practice followed by sintering. By introducing nitrogen at a pressure of more than 0.5 atm into the sintering atmosphere after dewaxing but before pore closure a grain refinement including reduced grain size and less abnormal grains can be obtained.

Abstract translation: 根据本发明，提供了一种制备精细碳化钨 - 钴硬质合金的方法，包括根据标准实践混合，研磨烧结。 通过将脱氮后的压力大于0.5atm的氮导入烧结气氛中，但在孔闭合之前，可以获得包括晶粒尺寸减小和异常晶粒少的晶粒细化。

公开(公告)号：US06299992B1

公开(公告)日：2001-10-09

申请号：US09242683

申请日：1999-08-25

Applicant: Per Lindskog ,  Per Gustafson

Inventor： Per Lindskog ,  Per Gustafson

IPC: B32B1900

CPC classification number: C22C29/08 ,  B22F3/101 ,  B22F2201/02 ,  B22F2998/00 ,  B22F2998/10 ,  Y10T428/12056 ,  B22F2207/03 ,  B22F2201/20

Abstract: The present invention relates to method of making a cemented carbide insert, comprising a cemented carbide substrate and a coating. The substrate contains WC and cubic carbonitride phase in a binder phase based of Co and/or Ni and has a binder phase enriched surface zone essentially free of cubic phase. The binder phase enriched surface zone prevails over the edge. By sintering in an atmosphere essentially consisting of nitrogen the thickness of the binder phase enriched zone can be controlled.

Abstract translation: 本发明涉及一种制造硬质合金刀片的方法，其包括硬质合金基底和涂层。 该基体在基于Co和/或Ni的粘结相中含有WC和立方碳氮化物相，并且具有基本上不含立方相的粘结相富集表面区。 粘结相丰富的表面区优于边缘。 通过在基本上由氮组成的气氛中烧结，可以控制粘结相富集区的厚度。

公开(公告)号：US5649279A

公开(公告)日：1997-07-15

申请号：US343921

申请日：1994-11-17

Applicant: Per Gustafson ,  Leif Akesson ,  Ake Ostlund

Inventor： Per Gustafson ,  Leif Akesson ,  Ake Ostlund

IPC: C22C29/02 ,  B22F3/00 ,  C22C1/05 ,  C22C29/08

CPC classification number: C22C1/051 ,  C22C29/08 ,  B22F2998/00 ,  Y10T428/12021 ,  Y10T428/12028 ,  Y10T428/12056

Abstract: There is disclosed a new process for binder phase enrichment. The process combines binder phase enrichment by dissolution of cubic phase with the requirements that cause formation of stratified layers, resulting in a unique structure. The new structure is characterized by, in comparison with the ones previously known, deeper stratified layers and less maximum binder phase enrichment. The possibility of combining dissolution of the cubic phase with formation of stratified layers offers new possibilities to optimize the properties of tungsten carbide based cemented carbides for cutting tools.The new process offers possibilities to combine the two types of gradients. The dissolution of cubic phase moves the zone with maximum mount of stratified binder phase from the surface to a zone close to and below the dissolution front. By controlling the depth of dissolution, the interstitial balance and the cooling rate, a cemented carbide with a unique combination of toughness and plastic deformation resistance can be achieved.

Abstract translation: 公开了用于粘结相富集的新方法。 该方法通过立方相的溶解与引起层状层形成的要求结合粘结相富集，产生独特的结构。 与以前已知的相比，新结构的特征在于更深的分层和更少的最大粘结相富集。 将立方相的溶解与分层的形成相结合的可能性为优化用于切削工具的碳化钨基硬质合金的性能提供了新的可能性。 新工艺提供了组合两种梯度的可能性。 立方相的溶解将最大的层状粘合剂相的安装区从表面移动到溶解前部附近和之下的区域。 通过控制溶解深度，间隙平衡和冷却速度，可以实现具有韧性和塑性变形抗力的独特组合的硬质合金。

公开(公告)号：US06200671B1

公开(公告)日：2001-03-13

申请号：US09077424

申请日：1998-09-01

Applicant: Per Lindskog ,  Per Gustafson ,  Björn Ljungberg ,  Åke Östlund

Inventor： Per Lindskog ,  Per Gustafson ,  Björn Ljungberg ,  Åke Östlund

IPC: B23B2714

CPC classification number: C23C30/005 ,  C22C29/08 ,  C23C16/30 ,  Y10T428/24975 ,  Y10T428/265

Abstract: A coated turning insert particularly useful for turning in stainless steel is disclosed. The insert is characterized by a WC—Co-based cemented carbide substrate having a highly W-alloyed Co-binder phase and a coating including an inner layer of TiCxNyOz with columnar grains followed by a layer of fine-grained &kgr;-Al2O3 and a top layer of TiN. The layers are deposited by using CVD-methods.

Abstract translation: 公开了一种特别适用于不锈钢车削的涂覆车刀。 该嵌件的特征在于具有高W合金Co粘合剂相的WC-Co基硬质合金基材和包括具有柱状晶粒的TiCxNyOz内层的涂层，随后是一层细粒度的κB-Al2O3和顶部 TiN层。 通过使用CVD法沉积这些层。

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。

公开(公告)号：US20110008199A1

公开(公告)日：2011-01-13

申请号：US12745305

申请日：2008-12-19

Applicant: Anders Karlsson ,  Gunilla Anderson ,  Peter Björkhagen ,  Per Gustafson ,  Marco Zwinkels

Inventor： Anders Karlsson ,  Gunilla Anderson ,  Peter Björkhagen ,  Per Gustafson ,  Marco Zwinkels

IPC: B22F3/10 ,  B22F3/00

CPC classification number: F27B17/00 ,  B22F3/003 ,  B22F3/1028 ,  B22F2005/001 ,  B22F2203/11 ,  B22F2999/00 ,  F27B5/14 ,  F27D21/0014

Abstract: The present invention relates to a method of making cutting tools comprising a substrate having a hard phase and a binder phase, the method comprising forming green powder compacts using powder metallurgical techniques, charging the green powder compacts, placed on one or several trays, in a furnace and sintering the green powder compacts wherein the furnace comprises an insulation package, at least three individually controlled heating elements located inside the insulation package including a vertical heating element, an upper horizontal heating element arranged in an upper part of the furnace, and a lower horizontal heating element arranged in a lower part of the furnace, wherein operating the at least three heating elements such that an average controlled cooling rate from a sintering temperature down to at least a solidification temperature of the binder phase is 0.1-4.0° C./min, and a sintering furnace operable to obtain a controlled cooling rate.

Abstract translation: 本发明涉及一种制造切削工具的方法，该切削工具包括具有硬质相和粘结相的基底，该方法包括使用粉末冶金技术形成绿色粉末压块，将放置在一个或多个塔板上的绿色粉末压块 炉和烧结其中炉子包括绝缘包装的至少三个单独控制的加热元件，其中包括垂直加热元件的绝缘包装内的至少三个独立控制的加热元件，和布置在炉子的上部的上部水平加热元件 布置在炉子的下部的水平加热元件，其中操作至少三个加热元件，使得从烧结温度降至至少粘合相的固化温度的平均控制冷却速率为0.1-4.0℃/ min，以及可操作以获得受控冷却速率的烧结炉。