HIGH STRENGTH DRIVE SHAFT AND MANUFACTURE THEREOF

PROBLEM TO BE SOLVED: To obtain an excellent twist strength and twist fatigue strength characteristic as a drive shaft. SOLUTION: The raw material of this drive shaft is the steel containing C: 0.48-0.58%, Si: 0.01-0.15%, Mn: 0.35-0.75%, S: 0.005-0.15%, Mo: 0.1-0.35%, B: 0.0005-0.005%, Al: 0.015-0.0...

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Bibliographische Detailangaben
Hauptverfasser:	NAITO KENICHIRO, KANISAWA HIDEO, SAGA MASAYOSHI, OCHI TATSURO, TAMURA JIYOUJI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BEARINGS BLASTING CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FERROUS OR NON-FERROUS ALLOYS FLEXIBLE SHAFTS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THERMAL INSULATION IN GENERAL TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain an excellent twist strength and twist fatigue strength characteristic as a drive shaft. SOLUTION: The raw material of this drive shaft is the steel containing C: 0.48-0.58%, Si: 0.01-0.15%, Mn: 0.35-0.75%, S: 0.005-0.15%, Mo: 0.1-0.35%, B: 0.0005-0.005%, Al: 0.015-0.05% and Ti: 0.02-0.08%. The ratio (t/r) between the effective hard layer depth (t) of the end of an involute serration and a radius (r) is 0.3-0.7. Or, further the drive shaft with a high strength is manufactured by forming the drive shaft with a high strength whose old austenite crystal grain of the end of the involute serration is 8 or more at JIS grain number and a steel with above components whose hardness is HR 85-95 is formed to a prescribed shape by cutting and rolling and then hardened by a high frequency and tempered at 120-200 deg.C. Thereby, the high strength drive shaft is manufactured.