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41.发明授权Earth-boring bit parts including hybrid cemented carbides and methods of making the same 有权地镗钻头零件包括混合硬质合金及其制造方法公开(公告)号：US08322465B2
公开(公告)日：2012-12-04
申请号：US12196951
申请日：2008-08-22
Applicant: Prakash K. Mirchandani
Inventor： Prakash K. Mirchandani
IPC: E21B10/08
CPC classification number: E21B10/46 , B22F2005/001 , B22F2998/10 , C22C29/08 , E21B10/08 , E21B10/42 , B22F1/0003 , B22F3/16 , C22C1/1084
Abstract: An earth-boring bit part such as, for example, a bit body, roller cone, or mud nozzle includes a hybrid cemented carbide composite. The hybrid cemented carbide includes a cemented carbide dispersed phase, and a cemented carbide continuous phase. A method of manufacture also is disclosed.
Abstract translation: 诸如例如钻头体，辊锥体或泥浆喷嘴的钻孔部件包括混合硬质合金复合材料。 混合硬质合金包括硬质合金分散相和硬质合金连续相。 还公开了一种制造方法。
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42.发明授权Composite cemented carbide rotary cutting tools and rotary cutting tool blanks 有权复合硬质合金旋转切削刀具和旋转切削刀具坯料公开(公告)号：US08272816B2
公开(公告)日：2012-09-25
申请号：US12464607
申请日：2009-05-12
Applicant: Prakash K. Mirchandani
Inventor： Prakash K. Mirchandani
CPC classification number: C22C1/051 , B22F7/062 , B22F2005/001 , C22C29/06 , Y10T407/1946 , Y10T407/26 , Y10T407/27 , Y10T408/78 , Y10T408/9097
Abstract: Composite articles, including composite rotary cutting tools and composite rotary cutting tool blanks, and methods of making the articles are disclosed. The composite article includes an elongate portion. The elongate portion includes a first region composed of a first cemented carbide, and a second region autogenously bonded to the first region and composed of a second cemented carbide. At least one of the first cemented carbide and the second cemented carbide is a hybrid cemented carbide that includes a cemented carbide dispersed phase and a cemented carbide continuous phase. At least one of the cemented carbide dispersed phase and the cemented carbide continuous phase includes at least 0.5 percent by weight of cubic carbide based on the weight of the phase including the cubic carbide.
Abstract translation: 公开了复合制品，包括复合旋转切割工具和复合旋转切割工具坯料以及制造制品的方法。 复合制品包括细长部分。 细长部分包括由第一硬质合金构成的第一区域和自发地结合到第一区域并由第二硬质合金构成的第二区域。 第一硬质合金和第二硬质合金中的至少一个是包括硬质合金分散相和硬质合金连续相的混合硬质合金。 硬质合金分散相和硬质合金连续相中的至少一种包括至少0.5重量％的基于包括立方晶碳的相的重量的立方晶碳。
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公开(公告)号：US20120237386A1
公开(公告)日：2012-09-20
申请号：US13487323
申请日：2012-06-04
Applicant: Prakash K. Mirchandani , Morris E. Chandler , Eric W. Olsen
Inventor： Prakash K. Mirchandani , Morris E. Chandler , Eric W. Olsen
IPC: B22F7/02
CPC classification number: C22C29/00 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C22C27/04 , C22C29/08 , C22C32/00 , B22F3/02 , B22F3/10 , B22F2201/013 , B22F2201/20
Abstract: A method of making a composite sintered powder metal article includes providing a first powder comprising hard particles and a powdered binder in a first region of a mold. Providing a second powder comprising a metal or metal alloy powder in a second region of the mold, wherein the second powder contacts the first powder and comprises at least one of a metal powder and a metallic alloy powder. The first powder and the second powder are consolidated in the mold to provide a green compact. The green compact is sintered to provide a composite sintered powder metal article comprising a cemented hard particle region formed from the first powder and metallurgically bonded to a metallic second region formed from the second powder.
Abstract translation: 制造复合烧结粉末金属制品的方法包括在模具的第一区域中提供包含硬颗粒和粉末状粘合剂的第一粉末。 在模具的第二区域中提供包含金属或金属合金粉末的第二粉末，其中第二粉末接触第一粉末并且包括金属粉末和金属合金粉末中的至少一种。 将第一粉末和第二粉末固结在模具中以提供生坯。 生坯被烧结以提供复合烧结粉末金属制品，其包括由第一粉末形成的粘结硬质颗粒区域并冶金结合到由第二粉末形成的金属第二区域。
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公开(公告)号：US08221517B2
公开(公告)日：2012-07-17
申请号：US12476738
申请日：2009-06-02
Applicant: Prakash K. Mirchandani , Morris E. Chandler , Eric W. Olsen
Inventor： Prakash K. Mirchandani , Morris E. Chandler , Eric W. Olsen
IPC: B22F9/00
CPC classification number: C22C29/00 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C22C27/04 , C22C29/08 , C22C32/00 , B22F3/02 , B22F3/10 , B22F2201/013 , B22F2201/20
Abstract: A macroscopic composite sintered powder metal article including a first region including cemented hard particles, for example, cemented carbide. The article includes a second region including one of a metal and a metallic alloy selected from the group consisting of a steel, nickel, a nickel alloy, titanium, a titanium alloy, molybdenum, a molybdenum alloy, cobalt, a cobalt alloy, tungsten, and a tungsten alloy. The first region is metallurgically bonded to the second region, and the second region has a thickness of greater than 100 microns. A method of making a macroscopic composite sintered powder metal article is also disclosed, herein. The method includes co-press and sintering a first metal powder including hard particles and a powder binder and a second metal powder including the metal or metal alloy.
Abstract translation: 一种宏观复合烧结粉末金属制品，其包括具有硬质合金的第一区域，例如硬质合金。 所述制品包括第二区域，所述第二区域包括选自钢，镍，镍合金，钛，钛合金，钼，钼合金，钴，钴合金，钨中的金属和金属合金之一， 和钨合金。 第一区域冶金结合到第二区域，第二区域具有大于100微米的厚度。 本文还公开了制造宏观复合烧结粉末金属制品的方法。 该方法包括将包含硬颗粒和粉末粘合剂的第一金属粉末和包括金属或金属合金的第二金属粉末共压并烧结。
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公开(公告)号：US20110107811A1
公开(公告)日：2011-05-12
申请号：US12616300
申请日：2009-11-11
Applicant: Prakash K. Mirchandani , V. Brian Shook , Grayson L. Bowman , Matthew D. Brown
Inventor： Prakash K. Mirchandani , V. Brian Shook , Grayson L. Bowman , Matthew D. Brown
Abstract: A thread rolling die includes a thread rolling region comprising a working surface including a thread form. The thread rolling region of the thread rolling die comprises a sintered cemented carbide material having a hardness in the range of 78 HRA to 89 HRA. In certain embodiments, the thread rolling die may further include at least one non-cemented carbide piece metallurgically bonded to the thread rolling region in an area of the thread rolling region that does not prevent a workpiece from contacting the working surface, and wherein the non-cemented carbide piece comprises at least one of a metallic region and a metal matrix composite region. Methods of forming a thread rolling die as embodied herein are also disclosed.
Abstract translation: 螺纹滚压模包括包括螺纹形状的工作表面的螺纹滚动区域。 滚丝模具的滚丝区域包括硬度在78HRC至89HRC范围内的烧结硬质合金材料。 在某些实施方案中，所述丝线轧制模具还可以包括至少一个在所述螺纹滚动区域中在螺纹滚动区域上冶金结合的非硬质合金块，所述区域不阻止工件接触所述工作表面，并且其中， 硬质合金片包括金属区域和金属基质复合区域中的至少一个。 还公开了形成本文所体现的螺纹滚压模的方法。
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Patent Agency Ranking
46.发明申请COMPOSITE CEMENTED CARBIDE ROTARY CUTTING TOOLS AND ROTARY CUTTING TOOL BLANKS 有权复合硬质合金转盘切割工具和旋转切割工具空白公开(公告)号：US20100290849A1
公开(公告)日：2010-11-18
申请号：US12464607
申请日：2009-05-12
Applicant: Prakash K. Mirchandani
Inventor： Prakash K. Mirchandani
CPC classification number: C22C1/051 , B22F7/062 , B22F2005/001 , C22C29/06 , Y10T407/1946 , Y10T407/26 , Y10T407/27 , Y10T408/78 , Y10T408/9097
Abstract: Composite articles, including composite rotary cutting tools and composite rotary cutting tool blanks, and methods of making the articles are disclosed. The composite article includes an elongate portion. The elongate portion includes a first region composed of a first cemented carbide, and a second region autogenously bonded to the first region and composed of a second cemented carbide. At least one of the first cemented carbide and the second cemented carbide is a hybrid cemented carbide that includes a cemented carbide dispersed phase and a cemented carbide continuous phase. At least one of the cemented carbide dispersed phase and the cemented carbide continuous phase includes at least 0.5 percent by weight of cubic carbide based on the weight of the phase including the cubic carbide.
Abstract translation: 公开了复合制品，包括复合旋转切割工具和复合旋转切割工具坯料以及制造制品的方法。 复合制品包括细长部分。 细长部分包括由第一硬质合金构成的第一区域和自发地结合到第一区域并由第二硬质合金构成的第二区域。 第一硬质合金和第二硬质合金中的至少一个是包括硬质合金分散相和硬质合金连续相的混合硬质合金。 硬质合金分散相和硬质合金连续相中的至少一种包括至少0.5重量％的基于包括立方晶碳的相的重量的立方晶碳。
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47.发明申请Modular Fixed Cutter Earth-Boring Bits, Modular Fixed Cutter Earth-Boring Bit Bodies, and Related Methods 有权模块化固定刀具镗孔钻头，模块化固定刀具镗孔位体及相关方法公开(公告)号：US20070251732A1
公开(公告)日：2007-11-01
申请号：US11737993
申请日：2007-04-20
Applicant: Prakash K. Mirchandani , Michael E. Waller , Jeffrey L. Weigold , Alfred J. Mosco
Inventor： Prakash K. Mirchandani , Michael E. Waller , Jeffrey L. Weigold , Alfred J. Mosco
IPC: E21B10/46
Abstract: A modular fixed cutter earth-boring bit body includes a blade support piece and at least one blade piece fastened to the blade support piece. A modular fixed cutter earth-boring bit and methods of making modular fixed cutter earth-boring bit bodies and bits also are disclosed.
Abstract translation: 一种模块化的固定刀具钻头体包括刀片支撑件和固定到刀片支撑件上的至少一个刀片。 公开了一种模块式固定刀具钻头和制造模块化固定刀具钻头钻头体和钻头的方法。
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公开(公告)号：USRE34262E
公开(公告)日：1993-05-25
申请号：US705969
申请日：1991-05-28
Applicant: Raymond C. Benn , Prakash K. Mirchandani , Walter E. Mattson
Inventor： Raymond C. Benn , Prakash K. Mirchandani , Walter E. Mattson
CPC classification number: C22C32/0036 , C22C1/0416
Abstract: High modulus aluminum-base alloys comprise mechanically alloyed aluminum-base compositions contain 10-25% titanium part of which may be replaced by vanadium or zirconium. Within described limits the alloys can contain elements other than oxygen and carbon ordinarily derived from the process control agent used in mechanical alloying.
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公开(公告)号：US5114505A
公开(公告)日：1992-05-19
申请号：US574903
申请日：1990-08-30
Applicant: Prakash K. Mirchandani , Raymond C. Benn , Walter E. Mattson
Inventor： Prakash K. Mirchandani , Raymond C. Benn , Walter E. Mattson
CPC classification number: C22C1/1084 , C22C32/00 , C22C32/0063 , Y10T428/12486
Abstract: A composite aluminum-base alloy having a mechanically alloyed matrix alloy. The matrix alloy has about 4-40 percent by volume aluminum-containing intermetallic phase. The aluminum-containing intermetallic phase includes at least one element selected from the group consisting of niobium, titanium and zirconium. The intermetallic phase is essentially insoluble in the matrix alloy below one half of the solidus temperature of the matrix alloy. The balance of the matrix alloy is principally aluminum. A stiffener of 5 to 30 percent by volume of the composite aluminum-base alloy is dispersed within the metal matrix.
Abstract translation: 具有机械合金基质合金的复合铝基合金。 基质合金具有约4-40体积％的含铝金属间相。 含铝金属间化合物相包括选自铌，钛和锆中的至少一种元素。 金属间相基本上不溶于基体合金，低于基体合金的固相线温度的一半。 基体合金的平衡主要是铝。 复合铝基合金的5〜30体积％的加强筋分散在金属基体内。
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公开(公告)号：US08800848B2
公开(公告)日：2014-08-12
申请号：US13222324
申请日：2011-08-31
Applicant: Prakash K. Mirchandani , Morris E. Chandler
Inventor： Prakash K. Mirchandani , Morris E. Chandler
Abstract: Methods for forming a wear resistant layer metallurgically bonded to at least a portion of a surface of a metallic substrate may generally comprise positioning hard particles adjacent the surface of the metallic substrate, and infiltrating the hard particles with a metallic binder material to form a wear resistant layer metallurgically bonded to the surface. In certain embodiments of the method, the infiltration temperature may be 50° C. to 100° C. greater than a liquidus temperature of the metallic binder material. The wear resistant layer may be formed on, for example, an exterior surface and/or an interior surface of the metallic substrate. Related wear resistant layers and articles of manufacture are also described.
Abstract translation: 冶金地结合到金属基材的表面的至少一部分上的形成耐磨层的方法通常可以包括邻近金属基材的表面定位硬颗粒，并用金属粘合剂材料渗透硬颗粒以形成耐磨性 层与表面冶金结合。 在该方法的某些实施方案中，渗透温度可以比金属粘合剂材料的液相线温度高50℃至100℃。 耐磨层可以形成在例如金属基材的外表面和/或内表面上。 还描述了相关的耐磨层和制造物品。
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