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：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。