Making cam for shaft e.g. drive in internal combustion engine of motor vehicle by forming cam blank of hardenable steel material by punching and/or cutting process, subjecting blank to heat treatment, and machining surface portion of blank

The process comprises forming a cam blank of a hardenable steel material by punching and/or cutting process (302), subjecting the cam blank to a heat treatment, machining (312) a surface portion of the blank, partially hardening (310) the blank by an inductive surface hardening, annealing the blank...

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Bibliographische Detailangaben
Hauptverfasser:	BURMESTER, SVEN, EVEN, DIRK, EHRLICH, THOMAS, SCHIETINGER, BERND
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BEARINGS BLASTING CHEMISTRY COMBINED OPERATIONS CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ELEMENTS OR CRANKSHAFT MECHANISMS ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GEARING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS OTHER WORKING OF METAL PERFORMING OPERATIONS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS STEAM ENGINES THERMAL INSULATION IN GENERAL TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS
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Beschreibung
Zusammenfassung:	The process comprises forming a cam blank of a hardenable steel material by punching and/or cutting process (302), subjecting the cam blank to a heat treatment, machining (312) a surface portion of the blank, partially hardening (310) the blank by an inductive surface hardening, annealing the blank by inductive rapid annealing, and finishing the cam blank by a vapor deposition process and/or a physical vapor deposition method and/or phosphating a functional layer. A set of cam is formed on a cam shaft main body without further machining processing steps on the cam. The process comprises forming a cam blank of a hardenable steel material by punching and/or cutting process (302), subjecting the cam blank to a heat treatment, machining (312) a surface portion of the blank, partially hardening (310) the blank by an inductive surface hardening, annealing the blank by inductive rapid annealing, and finishing the cam blank by a vapor deposition process and/or a physical vapor deposition method and/or phosphating a functional layer. A set of cam is formed on a cam shaft main body without further machining processing steps on the cam, and is formed by internal high-pressure forming and/or thermal and/or mechanical joining and/or bonding cam blanks with a shaft. Die Erfindung betrifft ein Verfahren zur Herstellung eines Nockens (2) für eine Nockenwelle (1) in einem Verbrennungsmotor eines Kraftwagens, bei welchem ein Nockenrohling aus einem härtbaren Stahlwerkstoffes mit einem Kohlenstoffgehalt zwischen 0,4 Gew.-% und 1,1 Gew.-% Kohlenstoff, vorzugsweise 0,4-0,8 Gew.-% gefertig und mindestens einer Wärmebehandlung unterzogen wird, wobei die Herstellung des Nockenrohlings zumindest einen Stanz- und/oder Schneidprozess umfasst.