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公开(公告)号：US20180001512A1
公开(公告)日：2018-01-04
申请号：US15538586
申请日：2015-12-16
CPC分类号： B28D1/041 , B23B51/042 , B23B2226/31 , B23B2226/75 , B23B2250/12 , B23D61/18 , B28D1/12 , B28D1/121
摘要： A drill ring for a cylindrical core drill bit is disclosed. The drill ring includes at least two ring segments which are constructed from a sintered powder mixture and diamond particles. The diamond particles are arranged on ablation tracks in a plane perpendicular to the cylinder axis and the ring segments are connected to each other on their lateral edges.
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公开(公告)号：US20170361388A1
公开(公告)日：2017-12-21
申请号：US15538591
申请日：2015-12-22
IPC分类号： B23D65/02 , B23D61/02 , B28D1/14 , B22F7/06 , B23P15/32 , B28D1/04 , B28D1/12 , C22C26/00 , B22F5/00
CPC分类号： B23D65/02 , B22F7/06 , B22F2005/001 , B23D61/025 , B23D65/00 , B23P15/32 , B28D1/041 , B28D1/121 , B28D1/146 , C22C2026/006
摘要： A method for manufacturing a continuous drill ring for a core drill bit is disclosed. The method includes forming at least two green compacts in layers in a direction of formation between a bottom side and a top side by successively applying powder layers containing a powder mixture and diamond layers containing diamond particles that are arranged in a set pattern. The green compacts are shaped into ring segments under the effect of pressure. The ring segments are joined in a circular manner and they are sintered under the effect of heat so as to obtain a continuous drill ring.
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公开(公告)号：US20170368715A1
公开(公告)日：2017-12-28
申请号：US15538579
申请日：2015-12-22
CPC分类号： B28D1/041 , B23B51/042 , B23B2226/31 , B23B2250/12 , B23D61/04 , B23D65/00 , B28D1/121
摘要： A method for producing a drill ring for a core drill bit is disclosed. The method includes constructing at least two green parts from encapsulated diamond particles, the diamond particles being covered by a powder mixture. The green parts are formed into ring segments under the effect of pressure and the ring segments are annularly assembled and sintered under temperature action to form a continuous drill ring.
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公开(公告)号：US20170368714A1
公开(公告)日：2017-12-28
申请号：US15538574
申请日：2015-12-22
摘要： A method for manufacturing a continuous drill ring for a core drill bit is disclosed. The method includes forming at least two green compacts in layers in a direction of formation between a bottom side and a top side by successively applying powder layers containing a powder mixture and diamond layers containing diamond particles that are arranged in a set pattern, shaping the green compacts into ring segments under the effect of pressure, sintering the ring segments under the effect of heat, and combining the sintered ring segments in a circular manner and joining the same in a frictionally engaging or integrally bonding manner at the lateral edges thereof so as to obtain the continuous drill.
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公开(公告)号：US11819918B2
公开(公告)日：2023-11-21
申请号：US16635682
申请日：2018-07-24
CPC分类号： B22F7/06 , B22F3/16 , B22F5/00 , B22F7/02 , B22F2005/001 , B22F2304/10 , B23P15/28
摘要： A method of producing a machining segment, in which a green body (51) is constructed from a machining zone (54), wherein the machining zone (54) is produced from a first metallic powder material (56) and hard material particles (58), the green body (51) is compacted under pressure with a compression pressure to result in a compact body and the compact body is sintered thermally at a sintering temperature to result in the finished machining segment, wherein the machining zone (54) is produced by layer-by-layer application of material layers of the first metallic powder material (56) and particle layers of the hard material particles (58), wherein the hard material particles (58) in one particle layer are placed into the previously applied material layer of the first metallic powder material (56).
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