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Title:
GEAR WHEEL PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/044249
Kind Code:
A3
Abstract:
The invention relates to a method for producing a spur-cut gear wheel (1; 10; 32; 39) comprising a plurality of individual components, which comprises the steps: a) providing the individual components, which comprise at least one hub (2; 11; 33; 40), a disk wheel (3; 12, 13; 34, 35; 41, 42) and a ring gear (4; 14; 36; 43), b) at least partial mechanical soft machining of the individual components, c) joining the individual components by using a welding method, d) hardening at least the ring gear (4; 14; 36; 43), e) hard machining at least the ring gear (4; 14; 36; 43), and f) carrying out a grinding burn test by using the nital etching process, characterized in that, before carrying out step f), gaps (6; 23; 37) present on the rear side in the area of the welds produced in step c) are sealed by using a sealing material (8; 24; 38) that is resistant to nitric acid.

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Inventors:
KLEIN-HITPASS ARNO (DE)
MEIS JEAN-ANDRE (DE)
REIMERS JAN-DIRK (DE)
Application Number:
PCT/EP2014/070453
Publication Date:
May 21, 2015
Filing Date:
September 25, 2014
Export Citation:
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Assignee:
SIEMENS AG (DE)
International Classes:
B23P15/14; G01M13/02; G01N1/32; G01N21/88
Foreign References:
DE911500C1954-05-17
US20110136408A12011-06-09
CN101898297A2010-12-01
EP1719572A22006-11-08
DE3427837C21987-03-05
Other References:
"ANSI/AGMA 2007-C00 Gears - Surface Temper Etch Inspection After Grinding", 2 November 2000, AMERICAN GEAR MANUFACTURERS ASSOCIATION, Alexandria, VA 22314 (US), ISBN: 1-55589-761-4, XP009183039
EHRHARDT ET AL: "Elektronenstrahlschweissen ermoeglicht neue Fertigungstechnologien", FERTIGUNGSTECHNIK UND BETRIEB,, vol. 28, 1 January 1978 (1978-01-01), pages 299 - 302, XP009176167
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