Abstract:
A method of manufacturing a tool body of a cutting tool comprises mechanically shaping the tool body to provide a metal surface on the tool body having a first surface characteristic. Thereafter, the metal surface is chemically treated with a metal reactant to create a relatively soft metal film along the metal surface. This soft metal film is removed via burnishing or other appropriate action to smooth the metal surface. After the surface is smoothed, the metal surface is then roughened to prepare the surface for the receipt of tungsten disulfide. The roughened metal surface is coated with tungsten disulfide. A cutting tool is disclosed that comprises a tool body defining a substantially isotropic surface having pits formed therein, and tungsten disulfide particles filled into the pits.
Abstract:
A method for producing a sintered rare earth magnet which comprises pulverizing an ingot of Nd2Fe14 alloy as a raw material to prepare a fine powder, filling a mold for pressing with a mixture of the fine powder with a binder, pressing the mixture in a magnetic field to carry out a pretreatment for putting magnetic orientations of particles in order, sintering the resulting pressed powder for a sintered magnet in a heat treatment furnace, for example, at 1050 DEG for 2 hr to prepare a rare earth sintered magnet, subjecting the magnet to cutting and abrasion to form a given product shape, and then immersing the formed magnet in a Zn plating bath held at 680 DEG for a given period of time (about 30 min). The method allows simultaneous practice of both of a coating treatment and an aging treatment.
Abstract:
Die vorliegende Erfindung schlägt ein Verfahren zur Herstellung eines beschichteten Formteils vor, insbesondere eines beschichteten Formteils für ein Magnetventil, wobei das Formteil zur Formgebung in einem ersten Verfahrensschritt spritzgegossen wird und zum Verfestigen in einem zeitlich nach dem ersten Verfahrensschritt durchgeführten zweiten Verfahrensschritt gesintert wird, dadurch gekennzeichnet, dassdas Formteil zeitlich zwischen dem ersten Verfahrensschritt und dem zweiten Verfahrensschrittin einem ersten Zwischenschritt mit einem eine Keramiksuspension umfassenden Materialzumindest teilweise beschichtet wird.
Abstract:
The invention relates to a material having a multiphase structure, comprising at least one first solid phase and at least one second solid phase, which material is characterized in that the first phase and the second phase are each a metal, a metal alloy, a ceramic material or combinations thereof in the form of a composite material, the phases of the structure can be distinguished from one another macroscopically, the multiphase structure is formed as an embedding structure or as a three-dimensional penetration structure, wherein the embedding structure has the first phase as a matrix phase occurring continuously in three spatial dimensions, and the second phase as a discontinuous, statistically distributed embedding phase, and wherein the first phase is produced by sintering.
Abstract:
In a process for producing a hearing aid, comprising a housing made out, at least partially, of a metallic or ceramic part using powder injection molding technique (PIM) within the housing (1) at least one additional element (3) made out of a polymeric material is arranged for placing functional parts (5, 7, 13) within or at the housing (1) to reduce complexity of PIM parts and/or to compensate any tolerances due to the PIM process.
Abstract:
É descrito um processo para a produção de armas de fogo, compreendendo as etapas de: confecção da estrutura metálica (2, 3) da arma a partir de processo MIM; qualificação, por usinagem, dos alojamentos, sedes e furos da estrutura metálica (2, 3); tratamento superficial da estrutura metálica (2, 3); fixação do cano (13); sobre-injeção do material polimérico (20, 21) na estrutura metálica (2, 3); e montagem final da arma (1). A etapa de confecção da estrutura metálica compreende a confecção de uma estrutura metálica (2) basicamente composta pela armação do cilindro (10) dotada e do orifício com rosca (12), destinado a fixação do cano (13), bem como das demais sedes e orifícios para a fixação dos componentes do mecanismo de disparo. Além disto, a etapa de sobre-injeção do material polimérico compreende a colocação do conjunto formado pela estrutura metálica (2, 3) e pelo cano (13) em uma matriz de injeção apropriada, bem como sobre-injetar externamente ao dito conjunto (2/3, 13) uma porção superior (20) e uma porção frontal (21). Em uma forma preferencial de realização, a porção superior (20) e a porção frontal (21) são injetadas concomitantemente, formando uma peça polimérica de acabamento única e inteiriça.