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AssigneeBetek GmbH & Co. KG
InventorsUlrich KRAEMER, Heiko FRIEDERICHS, Christoph HABERSTROH, Thomas ALLGAIER
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The invention relates to a pick, in particular a round-shank pick, comprising a pick head and a pick shank, wherein the pick head consists of at least a base part and a cutting element, which is connected to the base part and is composed of a hard material, in particular hard metal, wherein the base part has a wear-resistant layer on the outer surface thereof at the connection to the cutting element, which wear-resistant layer covers at least one segment of the outer surface of the base part facing the cutting element and wherein an end face of the wear-resistant layer facing the cutting element is covered by the cutting element. According to the invention, the base part has an axially oriented cut-out for receiving a fastening segment of the cutting element, the base part has a counter surface facing the cutting element and extending around the cut-out, and the counter surface and the end face of the wear-resistant layer form a continuous flat surface. The invention further relates to two methods for producing such a pick. The pick formed in such a way has low abrasive wear.
A chisel comprising a chisel head and a chisel shank, wherein the chisel head is formed at least from a base part and from a cutting element which is connected to the base part and which is composed of a hard material, wherein the base part has, adjacent to the cutting element, a wear-resistant layer on its outer face, which wear-resistant layer covers at least one section, facing toward the cutting element, of the outer face of the base part, and wherein a front face, facing toward the cutting element, of the wear-resistant layer is covered by the cutting element,
A chisel, in particular round-shank chisel, comprising a chisel head and having a chisel shank, wherein the chisel head is formed at least from a base part and from a cutting element which is connected to the base part and which is composed of a hard material, wherein the cutting element lies indirectly or directly with a bearing face at least regionally on the base part, and wherein the base part has, adjacent to the cutting element, a wear-resistant layer on its outer face, which wear-resistant layer covers at least one section, facing toward the cutting element, of the outer face of the base part,
(canceled)
A method for coating at least a section of an outer face of a chisel head of a chisel having a wear-resistant layer, wherein, in a second method step, a cutting element is brazed onto a surface, facing toward the cutting element, of the wear-resistant layer and a front counterpart face of a base part of the chisel head,
A method for producing a chisel head of a chisel wherein the chisel head has a base part with a cutting element attached to the front end of the base part wherein a wear-resistant layer is applied, so as to join the cutting element, to an outer face of the base part, and wherein a front face, facing toward the cutting element, of the wear-resistant layer is at least regionally covered by the cutting element,
Dependencies are inferred from the claim text.