Abstract:
Ein Drehschlagbohrer (1) mit einem Hartstoffeinsatz (2) mit zumindest einer Schneidkante (3) und einer dieser gegenüberliegenden Bodenfläche (4), welche mit einem Hartlot (5) stoffschlüssig an einer axialen Grundfläche (6) im Schaftende (7) befestigt ist, wobei die Grundfläche (6) zumindest am äusseren Radialrand angefast ist.
Abstract:
A cutting tip for a drilling tool includes a cemented carbide cutting base 11, a diamond element 12 supported by the cutting base 11, and a bonding layer formed between the cutting base 11 and the diamond element 12 in order to bond them. The bonding layer 13 includes diffusion layers S1 and S2 in which one or two or more metals selected from a group consisting of Fe, Ni, Co, Ti, Zr, W, V, Nb, Ta, Cr, Mo, and Hf diffuses into at least one of the cemented carbide or the diamond.
Abstract:
Disclosed are articles in which coated elements of cemented carbide or ceramics have been joined to a holder by means of conventional brazing or soldering technique.
Abstract:
이 굴삭 공구의 절단편은, 초경합금제의 절단 기부(11)와, 절단 기부(11)에 지지되는 다이아몬드제 부재(12)와, 절단 기부(11)와 상기 다이아몬드제 부재(12) 사이에 형성되어 이들을 접합하는 접합층(13)을 구비한다. 접합층(13)은, Fe, Ni, Co, Ti, Zr, W, V, Nb, Ta, Cr, Mo, 및 Hf 중에서 선택되는 1 또는 2이상의 금속이, 초경합금 및 다이아몬드 중의 적어도 한쪽으로 확산된 확산층(S1, S2)을 포함하고 있다.
Abstract:
A hardfacing composition (32) that includes a plurality of hard particles (54) wherein the hard particles (54) include a mode particle size distribution, one particle size distribution smaller than the mode particle size distribution, and an other particle size distribution larger than the mode particle size distribution. There is an absence of any substantial fluctuations in the particle size distribution between the mode particle size distribution and the one particle size distribution. There is an absence of any substantial fluctuations in the particle size distribution between the mode particle size distribution and the other particle size distribution.
Abstract:
제 1 양태에서, 본 발명은 절삭 공구에 포함된 2 개의 부품, 예컨대 연결부(1)와 드릴 섕크(2) 사이에 용접 조인트를 얻기 위한 방법에 관한 것이다. 본 발명은 심(shim)(14)이 부품들 사이의 외주 방향 개구 간극에 적용되며, 심은 이 간극의 형상에 상응하는 소정의 형상을 가지며, 이후, 심의 외주에 지향된 레이저 빔(22)에 의해 재료가 용융되어, 심의 접촉면과 2 개의 부품의 유사 접촉면 사이의 경계 영역에서 함께 용접되는 것을 특징으로 한다. 제 2 양태에서, 본 발명은 또한 이와 같은 절삭 공구에 관한 것이다.
Abstract:
An auger useable for creating an opening in the ground for a soil sensor housing wherein the sensor housing has a predetermined volume and a tapered outer surface, includes an auger made in accordance with the methods described and defined in this specification. The auger having a shaft having an outer surface of circular cross-section having an larger outer diameter at one end than the other end and a strip material having a helical shape with an inner wall having a larger inner diameter at one end than the other end of the helical shape wherein the helically shaped material is fixed over the outer diameter of the shaft to form a tapered auger with helical flighting. The volume of the opening created by an auger in the ground will provide a matching volume for a sensor housing of a predetermined volume such that substantially the full length of the tapered outer surface of the sensor is adjacent the ground along the full length/depth of the created opening.
Abstract:
The invention relates to a drill string element including at least one refill layer. Said layer includes one or more cords of filler metal, each cord having a width between 1 and 5 millimeters and being laid adjacent to each other so as to form a substantially continuous layer over one area of the element. The hardness in the body of the layer varies by less than 10 HRC over said area.
Abstract:
A heavy weight drill pipe for use in a downhole tool. The heavy weight drill pipe may include a tool joint made of a first steel alloy selected from the group consisting of AISI 4135, AISI 4137, AISI 4140, AISI 4142, AISI 4145, and AISI 4147. The tool joint may have a radial thickness between about 3.0 cm and about 5.7 cm. The heavy weight drill pipe may also include a pipe made of a second steel alloy selected from the group consisting of AISI 4135, AISI 4137, AISI 4140, AISI 4142, AISI 4145, and AISI 4147. The pipe may have a radial thickness between about 1.6 cm and about 3.3 cm. A weld region may be formed between the tool joint and the pipe. The weld region may be formed by friction welding the tool joint to the pipe.