The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2011
Filed:
Nov. 21, 2008
Hans Naumann, Albany, NY (US);
Hans Naumann, Albany, NY (US);
Niles-Simmons Industrieanlagen GmbH, Chemnitz, DE;
Abstract
The invention relates to a method of machining the bearing seats of main and rod bearings (HL, PL) of crankshafts (), in which the bearing seats () of the main and rod bearings (HL, PL), after the primary forming of the crankshaft () by forging or casting, are subjected to the following processing operations: forming by machining with a specific cutting edge, deep rolling all fillets or recesses of the main and rod bearings, straightening of the crankshaft (), precision machining with an end-milling cutter () in each case by high-speed roughing-cut turn-milling and finishing-cut turn-milling, smooth rolling of the bearing seats of the crankshaft after the finishing-cut turn milling, wherein the roughing-cut turn-milling and the finishing-cut turn-milling is effected during in each case an essentially complete revolution of the crankshaft () without longitudinal feed and without tangential feed of the end-milling cutter ().