摘要:
The present invention provides a method for producing a cobalt alloy material. This method can comprise: a step (S2) for forming a kneaded body containing a starting material powder and a binder, wherein the starting material powder contains a powdery cobalt alloy and the kneaded body contains 0.01-1.0 mass% of boron relative to the total mass of the starting material powder; a step (S3) for forming a molded body by injection molding the kneaded body; and a step (S6) for sintering the molded body. In this connection, boron can be added to the powdery cobalt alloy in the form of a boron powder, or alternatively, boron can be contained in the powdery cobalt alloy from the beginning as one of the components.
摘要:
A saw blade having a blade body, a plurality of cutting teeth defining a cutting edge along an edge of the blade body, each tooth along the cutting edge defining a cutting tip. At least one tooth tip along the cutting edge includes a different material, such as, for example, high speed steel, carbide, diamond, and/or a tip coating, than at least one other tooth tip along the cutting edge. The plurality of teeth may be arranged in a repeating pattern or in no pattern along the cutting edge. A method of manufacturing the saw blade includes forming a cutting edge along an axial edge of a blade body, defined by a plurality of cutting teeth having respective tooth cutting tips, wherein at least one tooth tip along the cutting edge includes a different material than at least one other tooth tip along the cutting edge.
摘要:
A bimetallic band saw blade (4) has a high speed cutting edge (10) welded to a backing band (8) of a steel alloy containing the following elements percentages by weight: Cr - .5 % to no more than 1.5 %, V - 0.10 % to 0.75 %, Mo - 1.5 % to 2.5 %; the alloy also contains C, Si, Mn, Nb and/or Ni and Al in such varying amounts that the total alloy content, except for Fe and inevitable impurities, is in the range of 3.12 % to 8.48 %.
摘要:
The invention relates to a composite tool comprised of a metallic supporting part and of at least one working part of the like with different material compositions. Said parts are metallically joined to one another. The inventive composite tool is, in particular, a saw blade or bandsaw. The aim of the invention is to increase the cutting capacity and the serviceable life of the tool, in particular, when machining titanium and titanium alloys, austenitic Cr-Ni-Mn-N steels and nickel or nickel-based alloys. To this end, the invention provides that the supporting part or the supporting strip is made of a tenacious iron-based material, and the working part(s) is/are made of a precipitation hardenable iron-cobalt-tungsten alloy (Fe-Co-W).
摘要:
The base material consists of a base steel that has a base carbon content of less than 0.3 wt.% and that is carbon-enriched through its surface (2, 3, 4) of two cover faces (2), two leading edge faces (3) and two longitudinal edge faces (4). As a result of a thermochemical treatment of at least one cover face (2), the base steel has edge regions (5) enriched with 0.5 to 1.1 wt.% carbon; with diminishing carbon content the edge regions (5) merge into a region (6) of little or no carbon enrichment. On its edge faces (3, 4) the base material has a sandwich structure created by the carbon-enriched edge region (5) and the non-carbon-enriched region (6).
摘要:
Die Erfindung betrifft ein Basismaterial für die Herstellung von Stammblättern für Kreissägen, Trennscheiben, Gattersägen sowie Schneide- und Schabvorrichtungen, wobei es aus einem kohlenstoffarmen Basisstahl mit einem Kohlenstoffgehalt von 0,1 bis 0,2 % Kohlenstoff besteht, wobei der Basisstahl nachfolgend so aufgekohlt worden ist, daß von seinen Außenwandbereichen zum inneren Kern hin ein aufgekohlter Bereich mit einem vom äußeren Rand der Außenwand zum nicht aufgekohlten Kern abfallenden Kohlenstoffgehalt vorhanden ist.