Abstract: The invention relates to a brush comprising a support made of a plastically deformable plastic material for disposing bristle clusters (13) thereon, the support having a plurality of cluster holes (14) each serving to accommodate one bristle cluster (13), the bristle clusters (13) each being fixed in a cluster hole (14) by means of a clip (16), and the clips (16) being provided with discontinuous structural elements at least in the area of clip projections (23, 24) on at least one longitudinal side (22) disposed essentially parallel to a cluster hole axis, wherein the structural elements are disposed at a distance to the longitudinal edges of the clip (16).

Abstract: A brush including a support made of bamboo material having a plurality of cluster holes each accommodating one bristle cluster fixed in a cluster hole by a clip having a length l greater than the diameter D of the cluster hole to form clip projections on both longitudinal ends. The clips have at least two wedges on at least one side disposed one above the other in the direction of the vertical axis and widening upward, the upper ends of the wedges forming catch shoulders extending in the longitudinal direction of the clip, wherein a press-in end of the clip having a reduced width is formed at a lower end of the lower wedge.

Abstract: The present invention relates to a wire electrode for spark-erosion cutting having a core (2), which contains a metal or a metal alloy, and a covering layer (3), surrounding the core (2), which comprises regions the morphology of which corresponds to block-like particles, which are spatially separated, at least over a portion of their circumference, from each other and/or the core material by cracks, characterized in that, viewed in a wire cross section perpendicular or parallel to the wire longitudinal axis, the portion amounting to more than 50% of the surface area of a region with the morphology of a block-like particle contains a copper-zinc alloy with a zinc concentration of 58.5-67 wt.

Abstract: A brush including a support made of bamboo material having a plurality of cluster holes each accommodating one bristle cluster fixed in a cluster hole by a clip having a length 1 greater than the diameter D of the cluster hole to form clip projections on both longitudinal ends. The clips have at least two wedges on at least one side disposed one above the other in the direction of the vertical axis and widening upward, the upper ends of the wedges forming catch shoulders extending in the longitudinal direction of the clip, wherein a press-in end of the clip having a reduced width is formed at a lower end of the lower wedge.

Abstract: The invention relates to a brush comprising a support made of a plastically deformable plastic material for disposing bristle clusters (13) thereon, the support having a plurality of cluster holes (14) each serving to accommodate one bristle cluster (13), the bristle clusters (13) each being fixed in a cluster hole (14) by means of a clip (16), and the clips (16) being provided with discontinuous structural elements at least in the area of clip projections (23, 24) on at least one longitudinal side (22) disposed essentially parallel to a cluster hole axis, wherein the structural elements are disposed at a distance to the longitudinal edges of the clip (16).

Abstract: A wire electrode for wirecut electrical discharge machining (WEDM) having a carbonaceous surface layer is disclosed. The wire electrode can include a core material, an outermost carbonization layer, and a phase transition layer between the core material and the carbonization layer.

Abstract: The invention relates to a wire electrode for spark-erosion cutting, comprising a core (2), which has a metal or a metal alloy, and a sheath (3, 4, 6), which surrounds the core (2) and comprises one or more sheath layers (3, 4, 6), one of which comprises regions (3) having a morphology corresponding to block-like particles, which are spatially separated, at least over part of their periphery, from one another, from the material of the layer comprising said regions, from the material of one or more other layers and/or from the core material by cracks, characterized in that, in a wire cross-section, viewed perpendicularly or parallel to the wire longitudinal axis, more than 50% of the surface area of a region having the morphology of a block-like particle has a copper-zinc alloy with a zinc concentration of 38 to 49 wt. %. There is optionally a thin cover layer on the block-like particles, which cover layer consists of more than 50 wt. % zinc oxide with a thickness of 0.05 to 2 ?m.

Abstract: A wire electrode for cutting by electrical discharge machining may include a core and a covering. The core may include a metal or a metal alloy. The covering may surround the core and may include one or more covering layers, of which at least one contains a mixture of phases including at least one of ? or ?? brass and including ? brass. In the at least one covering layer that contains the mixture, the phases are present next to one another in a fine-grained microstructure having a mean grain size of 5 ?m or less in section perpendicular to the longitudinal axis of the wire electrode.

Abstract: The invention relates to a wire electrode (1, 1?) for electric discharge cutting processes and a method for the production thereof. The wire electrode (1, 1?) has a core (2) containing a metal or a metal alloy, and a coating (3, 4; 3, 4, 5) that surrounds the core (2) and includes one or more coating layers (3, 4, 5), at least one (3) of which contains a phase mixture of ?-brass and/or ??-brass and ?-brass. In said at least one coating layer (3) containing ?-brass and/or ??-brass and ?-brass, the ?-phase and/or ??-phase and the ?-phase are arranged next to each other in a fine-grained structure in which the mean size of the ?-brass and/or ??-brass grains and the ?-brass grains amounts to a maximum of 5 ?m relative to the cross-section extending perpendicular to the longitudinal axis of the wire electrode (1, 1?).

Abstract: In order to achieve a reduction in wear of the wire guide rollers, apart from an improvement in the cutting speed and an improvement in current conduction, a wire electrode for spark erosion cutting of metals etc., comprising either a homogenous center (1) made of a metal or of a metal alloy, or a composite center, is provided with a sheath coating (2) whose surface is structured, wherein the indentations (3) created by the structure, are filled by a filler (4) made of an easily vapourable metal or of a metal alloy, so as to achieve a surface with little peak-to-valley height, i.e. with little surface roughness.

Abstract: A wire electrode for spark erosion cutting of metals, electrically-conducting ceramics etc., comprising either a homogenous centre (1) made of a metal or of a metal alloy, or a composite centre made from a steel core with a coating of copper or copper alloy, wherein the wire electrode comprises at least two sheath coatings made of zinc alloys, with said coatings wearing during erosion. In order to increase performance during high-speed cutting, such a wire electrode comprises an inner sheath coating (2) predominantly comprising &bgr;-brass, and an outer sheath coating (3) predominantly comprising &ggr;-brass, wherein the fraction of &bgr;/&bgr;′-phase or &ggr;-phase in the two sheath coatings is at least 60%. The ratio of the coating thickness of &bgr;-brass to &ggr;-brass is between 0.3 and 7. The sum of the thicknesses of both sheath coatings in relation to the external diameter of the electrode is between 0.1 and 0.3.

Abstract: In order to achieve a reduction in wear of the wire guide rollers, apart from an improvement in the cutting speed and an improvement in current conduction, a wire electrode for spark erosion cutting of metals etc., comprising either a homogenous centre (1) made of a metal or of a metal alloy, or a composite centre, is provided with a sheath coating (2) whose surface is structured, wherein the indentations (3) created by the structure, are filled by a filler (4) made of an easily vapourable metal or of a metal alloy, so as to achieve a surface with little peak-to-valley height, i.e. with little surface roughness.

Abstract: A wire electrode for spark erosion cutting of metals, electrically-conducting ceramics etc., comprising either a homogenous centre (1) made of a metal or of a metal alloy, or a composite centre made from a steel core with a coating of copper or copper alloy, wherein the wire electrode comprises at least two sheath coatings made of zinc alloys, with said coatings wearing during erosion. In order to increase performance during high-speed cutting, such a wire electrode comprises an inner sheath coating (2) predominantly comprising &bgr;-brass, and an outer sheath coating (3) predominantly comprising &ggr;-brass, wherein the fraction of &bgr;/&bgr;′-phase or &ggr;-phase in the two sheath coatings is at least 60%. The ratio of the coating thickness of &bgr;-brass to &ggr;-brass is between 0.3 and 7. The sum of the thicknesses of both sheath coatings in relation to the external diameter of the electrode is between 0.1 and 0.3.