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71. 发明申请

WO1992011109A1 CUTTING INSERT FOR LIGHT FEED RATE 审中-公开
标题翻译：切割插入光源进给率
公开(公告)号：WO1992011109A1
公开(公告)日：1992-07-09
申请号：PCT/US1991007128
申请日：1991-09-27
申请人： KENNAMETAL INC.
发明人： KENNAMETAL INC. , NIEBAUER, Kenneth, L.
IPC分类号： B23B27/22
CPC分类号： B23B27/1618 , Y10T407/235 , Y10T407/245
摘要： A cutting insert (10) having a polygonal body (12) having top (14) and bottom (16) surfaces with plurality of sidewalls (18) extending therebetween. Each sidewall (18) joins with the top surface (14), defining peripheral cutting edges (20). A chip braking groove formed in the top surface (14) includes a descending wall (34) inclining downwardly from the cutting edges (20) and a back wall (36) inclining upwardly from the rearward edge of the descending wall (34). Adjacent the cutting corner of the insert, the back wall (36) has a nose (50) including a tip (52) and two sides (54). The chip groove increases in width as it extends away from each cutting corner (22, 24). Two shoulders (56) on opposite sides of the nose (50) are at an angle relative to the cutting edges (20) such that the chip groove decreases in width as it extends from each side (54) away from each cutting corner (22, 24). Preferably, the inclination of the back wall (36) relative to the top surface (14) decreases as it extends away from each cutting corner (22, 24).

72. 发明申请

WO1992005296A1 CVD AND PVD COATED CUTTING TOOLS 审中-公开
标题翻译： CVD和PVD涂层切割工具
公开(公告)号：WO1992005296A1
公开(公告)日：1992-04-02
申请号：PCT/US1991003396
申请日：1991-05-15
申请人： KENNAMETAL INC.
发明人： KENNAMETAL INC. , SANTHANAM, Anakkavur, T. , QUINTO, Dennis, T. , GODSE, Rajendra, V. , JINDAL, Prem, C. , UNDERCOFFER, Kenneth, E.
IPC分类号： C23C14/00
CPC分类号： C23C28/044 , B23B27/148 , C23C14/0641 , C23C14/0664 , C23C16/34 , C23C16/36 , Y10T407/23 , Y10T407/27
摘要： Provided is a coated cutting tool (10) having a coating and a substrate. The coating includes at least one chemical vapor deposited (CVD) layer and at least one physical vapor deposited (PVD) layer. The outermost layer of the coating is a PVD layer, containing residual compressive stresses. The substrate is a composite having hard refractory grains bonded together by a binder material.

73. 发明申请

WO1992002693A1 REPLACEABLE DIGGING TOOTH WITH CONICAL CUTTING INSERTS 审中-公开
标题翻译：可更换的带切割刀片的切割牙
公开(公告)号：WO1992002693A1
公开(公告)日：1992-02-20
申请号：PCT/US1991002240
申请日：1991-04-02
申请人： KENNAMETAL INC. , REEDRILL, INC.
发明人： KENNAMETAL INC. , REEDRILL, INC. , STIFFLER, Stephen, P. , BEACH, Wayne, H. , FROST, Robert, L.
IPC分类号： E02F09/28
CPC分类号： E02F9/285 , E02F9/2858
摘要： A digging tooth (10) including a body portion (12) and a plurality of hard wear resistant conical inserts (14). The body portion includes a generally planar distal portion (16), a medial portion (18), and a bifurcated proximal portion (20) having at least two prongs (22, 24) separated from each other to form a slot (28). The conical inserts are secured to and spaced along said distal portion and have a generally cylindrical body portion (38) and a top portion (40) which tapers to a point to form a tip (42), wherein the ratio of the diameter of the cylindrical body portion to the spacing distance between the tips of the conical inserts is between 0.50 and 0.80 and, preferably, 0.72.

74. 发明申请

WO1991016468A1 AIR HARDENING STEEL 审中-公开
标题翻译：空气硬化钢
公开(公告)号：WO1991016468A1
公开(公告)日：1991-10-31
申请号：PCT/US1991000584
申请日：1991-01-28
申请人： KENNAMETAL INC.
发明人： KENNAMETAL INC. , MATERKOWSKI, James, P.
IPC分类号： C22C38/44
CPC分类号： C22C38/44 , C22C38/58 , Y10T428/12486
摘要： An air hardened steel having a reduced nickel content and acceptable impact hardness. The air hardened steel may include 0.18-0.35 w/o carbon, 1.3-1.75 w/o silicon, 1.3-2.0 w/o manganese, 0.65-2.1 w/o chromium, 0.9-2.0 w/o nickel and 0.2-0.35 w/o molybdenum and the balance impurities, deoxidants, and iron.

75. 发明申请

WO1989001925A1 ALUMINA COATED SILICON CARBIDE WHISKER-ALUMINA COMPOSITION 审中-公开
标题翻译：氧化铝涂层硅碳化硅 - 氧化铝组合物
公开(公告)号：WO1989001925A1
公开(公告)日：1989-03-09
申请号：PCT/US1988002696
申请日：1988-08-08
申请人： KENNAMETAL INC.
发明人： KENNAMETAL INC. , MEHROTRA, Pankaj, Kumar , BILLMAN, Elizabeth, R.
IPC分类号： C04B41/87
CPC分类号： C04B41/009 , B23B27/148 , B23B2228/61 , C04B35/111 , C04B35/803 , C04B41/5031 , C04B41/52 , C04B41/87 , C04B41/89 , C04B41/5068 , C04B35/10 , C04B35/80
摘要： An article of manufacture is provided having a SiC whisker reinforced alumina matrix substrate which has an alumina coating bonded to its exterior surface. It has been found that these articles are useful as cutting inserts in the high speed rough machining of steels.

76. 发明申请

WO1989001920A1 WHISKER REINFORCED CERAMICS AND A METHOD OF CLAD/HOT ISOSTATIC PRESSING SAME 审中-公开
标题翻译：陶瓷加固陶瓷及其热压方法
公开(公告)号：WO1989001920A1
公开(公告)日：1989-03-09
申请号：PCT/US1988002690
申请日：1988-08-08
申请人： KENNAMETAL INC.
发明人： KENNAMETAL INC. , MEHROTRA, Pankaj, Kumar , SWIOKLA, Joyce, L. , BILLMAN, Elizabeth, R.
IPC分类号： C04B35/10
CPC分类号： C04B41/009 , B23B27/148 , B23B2228/61 , C04B35/6455 , C04B35/80 , C04B41/5062 , C04B41/52 , C04B41/87 , C04B41/89 , C04B41/455 , C04B41/4578 , C04B41/53 , C04B41/5031 , C04B35/645
摘要： A method of manufacturing a shaped ceramic article by hot isostatic pressing comprising the following steps: (a) forming a compact of sinterable ceramic compositions, (b) applying a coating to the compact by vapor deposition of a ceramic composition that does not become vitreous before or during the subsequent isostatic pressing step, and (c) heating and isostatically pressing the coated compacts in an atmosphere that reacts with the coating and/or the compact at pressing temperatures and pressures to cause the compact to approach theoretical density. The method is suitable for forming a fired ceramic compact having a whisker loading in excess of about 12.5 volume percent with substantially isotropic properties due to a substantially random orientation of the whiskers.

77. 发明申请

WO1989001836A1 CUTTING INSERT WITH CHIP CONTROL 审中-公开
标题翻译：切割插入与芯片控制
公开(公告)号：WO1989001836A1
公开(公告)日：1989-03-09
申请号：PCT/US1988002531
申请日：1988-07-26
申请人： KENNAMETAL INC.
发明人： KENNAMETAL INC. , NIEBAUER, Kenneth, L. , LOCKARD, Thomas, A.
IPC分类号： B23B27/22
CPC分类号： B23B27/045 , Y10T407/2268 , Y10T407/2272 , Y10T407/235 , Y10T407/24 , Y10T407/25
摘要： An improved cutting insert (10) with chip control features and a method for manufacturing the same. An insert body (12) having wall regions (14, 16), sides (18, 20) and top and bottom walls (22, 24) is adapted for mounting in a pocket (74) in a holder (70). The insert body (12) has cutting edges (26, 28) and a diagonal notch (30, 32) in the top and bottom sides (22, 24). A land region (34, 36) extends rearwardly from the end wall (14, 16) region toward the respective top or bottom wall (22, 24) and defines a surface region of a predetermined width. A descending wall (40) initiates in a portion of the land (34, 36) and terminates in a planar floor region (44) having a forward (52), a rearward (54) and opposed side edges (56, 58). A back ramp (60) extends upwardly from the planar floor rearward edge (54) and terminates at the respective top or bottom wall (22, 24).

78. 发明申请

WO1989001561A1 ANNULAR SHIM FOR CONSTRUCTION BIT HAVING MULTIPLE PERFORATIONS FOR STRESS RELIEF 审中-公开
标题翻译：具有应力消除的多个执行的结构位的环形船
公开(公告)号：WO1989001561A1
公开(公告)日：1989-02-23
申请号：PCT/US1988002604
申请日：1988-07-29
申请人： KENNAMETAL INC.
发明人： KENNAMETAL INC. , WHYSONG, Hubert, H.
IPC分类号： E21B10/52
CPC分类号： E21C35/183 , B23K31/025 , B23K35/0222 , E21B10/56 , E21C2035/1806 , E21C2035/1816
摘要： Formation of a continuous double sandwich braze joint (12) between a bit body (18) of a conical bit (10) and a carbide insert tip (20) disposed in a cylindrical recess (22) formed in a forward end (24) of the bit body (18) is facilitated by a cylindrical shim (14). In one form, the shim is a cylindrical sleeve having an annular sidewall (32) with opposite forward (34) and rearward (36) open ends. The insert tip (20) is received through the forward open end (34) of the sleeve (32). Also, a multiplicity of perforations (16) are defined in spaced apart relation through the sidewall (32) and uniformly distributed thereabout. The multiperforated sleeve is disposed within the bit body recess (22) and between its interior and the exterior of a cylindrical base (30) of the insert tip (22) such that the multiplicity of perforations (16) defined in the sleeve sidewall (32) provide a multiplicity of spaces extending between the bit body (18) and insert tip (22) for receiving braze therethrough. In an alternative form, the shim (14') is a cylindrical basket having a sidewall (32') and endwall (40). The sidewall (32') is open at its forward end (34') and closed at its rearward end (42) by the endwall (40). The basket also has a multiplicity of perforations (16') defined through and distributed uniformly about its sidewall (32') and endwall (40). The endwall (40) is frusto-conical shaped and protrudes away from the sidewall rearward end (42).

79. 发明申请

WO1989001086A1 MASONRY TWO-PRONG ROTARY DRILL BIT 审中-公开
标题翻译： MASONRY两个旋转钻头
公开(公告)号：WO1989001086A1
公开(公告)日：1989-02-09
申请号：PCT/US1988002268
申请日：1988-07-06
申请人： KENNAMETAL INC.
发明人： KENNAMETAL INC. , ISAKOV, Edmund
IPC分类号： E21B10/42
CPC分类号： E21B10/54
摘要： A drill (11) for forming holes in masonry includes a supporting body (13) having an axis of rotation (15) therethrough and a pair of inserts (17, 19) mounted at one end (2) thereof by mounting portions (23, 25). Each insert has a main cutting edge (27), and external cutting edge (33), an upper internal cutting edge (29) and a lower internal cutting edge (31). The upper and lower internal cutting edges define a center relief (35) having an upper conical shaped portion (37) with an angle of relief between about 60 to 90 degrees and a lower cylindrical shaped portion (39). There is a ratio of between about 5 to 8 between the diameter of the drill and the diameter of the lower cylindrical shaped portion. There is a ratio of between about 2 to 2.5 between the diameter of the drill and the largest diameter of the conical shaped portion.
摘要翻译：用于在砖石中形成孔的钻头（11）包括具有穿过其中的旋转轴线（15）的支撑体（13）和通过安装部分（23,23）安装在其一端（2）处的一对插入件（17,19） 25）。每个插入件具有主切削刃（27）和外部切削刃（33），上部内部切削刃（29）和下部内部切削刃（31）。上部和下部内部切割边缘限定具有中间凸起（35），该中心凸起具有上部圆锥形部分（37），其具有大约60度至90度之间的释放角度和下部圆柱形部分（39）。在钻头的直径和下圆柱形部分的直径之间存在约5至8之间的比率。在钻头的直径和锥形部分的最大直径之间存在约2至2.5之间的比率。

80. 发明申请

WO1988009315A1 SIALON CUTTING TOOL COMPOSITION 审中-公开
标题翻译：西朗切割工具组合
公开(公告)号：WO1988009315A1
公开(公告)日：1988-12-01
申请号：PCT/US1988000994
申请日：1988-03-25
申请人： KENNAMETAL INC.
发明人： KENNAMETAL INC. , MEHROTRA, Pankaj, Kumar , SWIOKLA, Joyce, L.
IPC分类号： C04B35/58
CPC分类号： C04B41/009 , C04B35/597 , C04B41/5067 , C04B41/52 , C04B41/87 , C04B41/89 , C23C16/308 , C04B41/0072 , C04B41/5025 , C04B35/58042
摘要： A sialon ceramic material comprising a ceramic core selected from alpha-prime-sialon, beta-prime-sialon, and an intergranular phase and, optionally, substantially inert refractory phases. The sialon ceramic material has an alloyed surface layer with a substantially increased aluminum and oxygen content.
摘要翻译：一种赛隆陶瓷材料，其包含选自α-仲赛隆，β-赛赛尔 - 赛隆和晶间相的陶瓷芯，以及任选地基本上惰性的耐火相。赛隆陶瓷材料具有基本上增加的铝和氧含量的合金表面层。

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