Patents Assigned to Forst Technologie GmbH & Co. KG
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Publication number: 20220080518Abstract: An internal helical broaching tool has a pre-broaching tool portion extending in one broaching direction and a subsequent precise sizing tool portion. The latter, as a whole, is made of a hard metal with a density of greater than 10 g/cm3. This results in an internal helical broaching tool with increased service life at a defined machining performance.Type: ApplicationFiled: December 20, 2019Publication date: March 17, 2022Applicant: Forst Technologie GmbH & Co. KGInventor: Andreas BERKTOLD
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Patent number: 7338235Abstract: An internal broach for internally broaching profiles, defined by a bottom and flanks, of female serrations of a work piece having a toothed section with several rows of broach cutting teeth, the rows being disposed successively counter to a direction of broaching, with successive broach cutting teeth being allocated to each other for broaching a profile. The broach cutting teeth have bottom cutting blades and first and second sides. The first sides are guide flanks, the edges of which are guide edges without cutting ability. The second sides are relieved flanks, the edges of which are relieved edges without cutting ability.Type: GrantFiled: December 3, 2003Date of Patent: March 4, 2008Assignee: Forst Technologie GmbH & Co. KGInventors: Norbert Weghaus, Otto Pfitzer, Andreas Berktold
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Patent number: 6918716Abstract: An internal broach for internally broaching profiles, defined by a bottom and flanks, of female serrations of a work piece, comprises a toothed portion with several rows of broach cutting teeth disposed successively counter to a direction of broaching, successive broach cutting teeth being allocated to each other for broaching a profile. The broach cutting teeth have bottom cutting blades and first and second sides. The first sides are guide flanks, the edges of which are guide edges without cutting ability. The second sides are flank-cutting-blade relief surfaces, the edges of which are designed as flank blades with cutting ability.Type: GrantFiled: December 5, 2002Date of Patent: July 19, 2005Assignee: Forst Technologie GmbH & Co. KGInventors: Andreas Berktold, Norbert Weghaus
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Publication number: 20040109731Abstract: An internal broach for internally broaching profiles, defined by a bottom and flanks, of female serrations of a work piece comprises a toothed section with several rows of broach cutting teeth, the rows being disposed successively counter to a direction of broaching, with successive broach cutting teeth being allocated to each other for broaching a profile. The broach cutting teeth have bottom cutting blades and first and second sides. The first sides are guide flanks, the edges of which are guide edges without cutting ability. The second sides are relieved flanks, the edges of which are relieved edges without cutting ability.Type: ApplicationFiled: December 3, 2003Publication date: June 10, 2004Applicant: FORST TECHNOLOGIE GMBH & CO. KGInventors: Norbert Weghaus, Otto Pfitzer, Andreas Berktold
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Publication number: 20030103817Abstract: An internal broach for internally broaching profiles, defined by a bottom and flanks, of female serrations of a work piece, comprises a toothed portion with several rows of broach cutting teeth disposed successively counter to a direction of broaching, successive broach cutting teeth being allocated to each other for broaching a profile. The broach cutting teeth have bottom cutting blades and first and second sides. The first sides are guide flanks, the edges of which are guide edges without cutting ability. The second sides are flank-cutting-blade relief surfaces, the edges of which are designed as flank blades with cutting ability.Type: ApplicationFiled: December 5, 2002Publication date: June 5, 2003Applicant: Forst Technologie GmbH & Co. KGInventors: Andreas Berktold, Norbert Weghaus