Method of making tools or components
    2.
    发明申请
    Method of making tools or components 有权
    制作工具或组件的方法

    公开(公告)号:US20050133972A1

    公开(公告)日:2005-06-23

    申请号:US10924857

    申请日:2004-08-25

    摘要: The present invention relates to a method of making a sintered body comprising one or more hard constituents in a binder phase by injection molding or extrusion. According to the invention, the binder system comprises 30-70 wt % poly(ethylene-co-vinylacetate) and balance (Polyethylene)-blend-(Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy)-based wax. The solids loading of the feedstock, γ, is 0.51

    摘要翻译: 本发明涉及一种烧结体的制造方法,该烧结体通过注模或挤出在粘合剂相中包含一种或多种硬组分。 根据本发明,粘合剂体系包含30-70重量%的聚(乙烯 - 共 - 乙酸乙烯酯)和余量(聚乙烯) - 共混 - (聚(氧-1,2-乙二基),α-氢 - 羟基)基蜡。 原料γ的固体负载量为0.51 <γ<0.53,使用以下等式计算: MI>γ = MO> > - rho b 其中rho 是烧结材料的密度,R b是粘合剂体系的密度,R h

      Method and apparatus for manufacturing a blank for a rotary cutting tool
      4.
      发明授权
      Method and apparatus for manufacturing a blank for a rotary cutting tool 有权
      用于制造用于旋转切割工具的坯料的方法和装置

      公开(公告)号:US07371344B2

      公开(公告)日:2008-05-13

      申请号:US10857499

      申请日:2004-06-01

      摘要: A blank for a rotary tool for chip removing machining, such as a helix drill or an end mill is formed by advancing a mixture of hard metal powder and carrier through an extrusion passage. The mixture is fed past a core having pins secured thereto for forming respective internal holes through the mixture. Then the mixture is advanced through a rotary part that is rotating about a center axis of the extrusion passage, wherein the rotary part and the internal holes become twisted to a predetermined pitch. The mixture is also advanced past a plurality of shaping parts which project transversely into the extrusion passage for shaping exterior chip flutes in the mixture, e.g., by embossing or cutting. The mixture is allowed to harden into a green body, and the green body is then sintered to form a blank.

      摘要翻译: 通过挤出通道使硬质金属粉末和载体的混合物前进,形成用于切屑去除加工的旋转工具的坯料,例如螺旋钻或立铣刀。 将混合物通过具有固定到其上的销的芯,以形成通过混合物的相应内部孔。 然后,混合物通过围绕挤压通道的中心轴线旋转的旋转部件前进,其中旋转部分和内部孔变得预定的间距。 混合物也通过多个成形部件前进,该成形部件横向突出到挤出通道中,用于在混合物中形成外部切屑槽,例如通过压花或切割。 使混合物硬化成生坯,然后将生坯烧结形成坯料。

      Drill having internal chip channel and internal flush channel
      5.
      发明申请
      Drill having internal chip channel and internal flush channel 失效
      钻具有内部芯片通道和内部冲洗通道

      公开(公告)号:US20050047879A1

      公开(公告)日:2005-03-03

      申请号:US10841575

      申请日:2004-05-10

      IPC分类号: B23B51/02 B23B51/04 B23B51/06

      摘要: A drill for chip removing machining includes a front cutting end, a rear securing portion, and a shank extending therebetween. The cutting end includes at least one cutting edge. The drill has at least one internal chip channel and at least one internal flush channel formed in a longitudinal pillar portion of the drill. All portions of the drill are formed of the same material, such as cemented carbide, wherein the chip channel has a surface roughness no greater than 0.5 μm.

      摘要翻译: 用于去屑加工的钻头包括前切割端,后固定部分和在其间延伸的柄。 切割端包括至少一个切削刃。 钻头具有至少一个内部芯片通道和形成在钻头的纵向柱部分中的至少一个内部冲洗通道。 钻头的所有部分由相同的材料形成,例如硬质合金,其中芯片通道的表面粗糙度不大于0.5μm。

      Method and apparatus for manufacturing a blank for a rotary cutting tool
      9.
      发明申请
      Method and apparatus for manufacturing a blank for a rotary cutting tool 有权
      用于制造用于旋转切割工具的坯料的方法和装置

      公开(公告)号:US20050047951A1

      公开(公告)日:2005-03-03

      申请号:US10857499

      申请日:2004-06-01

      摘要: A blank for a rotary tool for chip removing machining, such as a helix drill or an end mill is formed by advancing a mixture of hard metal powder and carrier through an extrusion passage. The mixture is fed past a core having pins secured thereto for forming respective internal holes through the mixture. Then the mixture is advanced through a rotary part that is rotating about a center axis of the extrusion passage, wherein the rotary part and the internal holes become twisted to a predetermined pitch. The mixture is also advanced past a plurality of shaping parts which project transversely into the extrusion passage for shaping exterior chip flutes in the mixture, e.g., by embossing or cutting. The mixture is allowed to harden into a green body, and the green body is then sintered to form a blank.

      摘要翻译: 通过挤出通道使硬质金属粉末和载体的混合物前进,形成用于切屑去除加工的旋转工具的坯料,例如螺旋钻或立铣刀。 将混合物通过具有固定到其上的销的芯,以形成通过混合物的相应内部孔。 然后,混合物通过围绕挤压通道的中心轴线旋转的旋转部件前进,其中旋转部分和内部孔变得预定的间距。 混合物也通过多个成形部件前进,该成形部件横向突出到挤出通道中,用于在混合物中形成外部切屑槽,例如通过压花或切割。 使混合物硬化成生坯,然后将生坯烧结形成坯料。

      Method of making tungsten carbide based hard metal tools or components
      10.
      发明授权
      Method of making tungsten carbide based hard metal tools or components 失效
      制造碳化钨基硬质合金工具或部件的方法

      公开(公告)号:US07094821B2

      公开(公告)日:2006-08-22

      申请号:US10724051

      申请日:2003-12-01

      IPC分类号: C04B35/634 C04B35/56 B22B3/12

      摘要: Preparation, handling, and spray drying, in an economic and environmentally-friendly way, of slurries for the production of tungsten carbide based hard metal tools or components by the powder injection molding or extrusion route is disclosed. The slurry used is based on ethanol-water and contains metal carbide and metallic raw materials as well as stearic acid and a low concentration of polyethylenimine (PEI). The concentration of PEI is 0.01–1 wt % of the raw material weight. This combination results in low-viscous slurries, which require less use of ethanol, energy, manpower, and equipment time in their preparation, handling, and spray drying. The invention also relates to the powder obtained by using the method.

      摘要翻译: 公开了以经济和环保方式制备,处理和喷雾干燥用于通过粉末注射成型或挤出路线生产碳化钨基硬金属工具或部件的浆料。 使用的浆液是以乙醇 - 水为基础,含有金属碳化物和金属原料以及硬脂酸和低聚乙烯亚胺(PEI)。 PEI的浓度为原料重量的0.01-1%(重量)。 这种组合导致低粘度浆液,其在制备,处理和喷雾干燥中需要较少使用乙醇,能量,人力和设备时间。 本发明还涉及通过使用该方法获得的粉末。