Abstract:
PROBLEM TO BE SOLVED: To provide a laser machining apparatus and a method for the manufacture of a rotationally symmetrical tool.SOLUTION: Using a circular blank 27, a pulse area 55, for example, having a rectangular contour is prescribed, and a laser beam is moved along a predetermined tracing B, thus laser abrasion is performed, and a material is removed from the blank material so as to be a predetermined shape. The relative movement between a tool holder supporting the blank 27 and a laser head delivering laser beam impulses 24 is controlled by a positioning device having several axes.
Abstract:
소정의 점대점 기하형상을 생성하기 위해 레이저(50)로 공구(10)의 절삭 단부(18)로부터 재료를 제거하여 회전 절삭 공구(10)의 절삭 에지(20, 22) 및 인접한 윤곽을 가진 표면(S) 영역을 형성하기 위한 방법이 개시된다. 절삭 단부(18)의 표면(S)에 수직인 성분(C N )을 가지는 각도(θ)로 공구(10)의 절삭 단부(18)를 향해 레이저 빔(L)을 지향시킴으로써 상대적으로 복잡한 표면 및 에지 기하형상을 형성할 수 있다. 재료를 제거하고 원하는 절삭 에지(20, 22) 및 인접한 3차원의 윤곽을 가진 표면(S) 기하형상을 형성하기 위해 절삭 단부(18)의 표면(S)에 다수의 경로로 레이저 빔(L)을 지향시킨다.
Abstract:
PURPOSE: A bonding structure and bonding method for a cemented carbide member and a diamond member, a cutting piece for a drilling tool, a cutting member, and the drilling tool are provided to enhance the bonding strength between the cemented carbide member and the diamond member. CONSTITUTION: A cutting piece for a drilling tool includes a cemented carbide cutting base(11), a diamond member(12) supported by the cutting base, and a bonding layer(13) formed between the cutting base and the diamond member in order to bond the cutting base and the diamond member. The bonding layer includes diffusion layers in which one or two or more metals selected among Fe, Ni, Co, Ti, Zr, W, V, Nb, Ta, Cr, Mo, and Hf diffuse into at least one of the cemented carbide or the diamond.
Abstract:
In one embodiment, a carbide-containing article includes a carbide body (54) with an attached superabrasive layer (52). A braze metal coating (56) is attached to a surface the carbide substrate (54). The coating (56) primarily is made of particles of a metal having a melting point of less than 1200 0C, the particles having a size of less than 0.1 mm. In another embodiment, a process for applying a braze metal coating (56) to a carbide body (54) of a superabrasive (52) or other article includes depositing finely divided particles of a low melting point metal onto the carbide body by spraying the particles and gas onto the body at a velocity that is between 500 km/sec and 2 km/sec, with volumetric delivery of the particles being less than 50 grams per minute.
Abstract:
The present invention relates to an apparatus and to a method for processing hard materials comprises a laser (10) which generates high repetition rate, high irradiance laser pulses which are scanned onto a material using a scanner (20) for laser milling or laser cutting applications.
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:
In a first aspect, the invention relates to a method for achievement of a welded joint between two parts, e.g. a coupling part (1) and a drill shank (2), included in a cutting tool. Characteristic of the invention is that a shim (14) is applied in a peripherically opening gap between the parts, which shim has a predetermined shape corresponding to the shape of the gap, and then the material is melted and welded together in the boundary zone between the contact surfaces of the shim and the analogous contact surfaces of the two parts by means of a laser beam (22) directed to the periphery of the shim. In a second aspect, the invention also relates to a cutting tool as such.