A method for manufacturing a forged drive shaft includes a step of preparing a shaft material (110) having a first preliminary cylindrical part (111) that has a first diameter and extends in an axial direction thereof, a second preliminary cylindrical part (112) that has a second diameter that is larger than the first diameter, and a preliminary intermediate shaft part (113) that connects to each other the first preliminary cylindrical part and the second preliminary cylindrical part and that has a diameter larger than the first diameter but smaller than the second diameter; a step of forging a spline molded product (128) by inserting the shaft material into a profile space of a first die (114) to mold the spline molded product (128) having a spline shaft (91) having a first diameter on a first end side of the shaft material within the first die; and a step of forging a gear molded product (138) by inserting the spline molded product via the spline shaft part side into a second die (131) to mold the gear molded product (138) having a gear shaft (92) on an outer periphery on a side opposite to the spline shaft within the second die. This provides a method for manufacturing the forged drive shaft that can contribute to a shortening of the processing time and an improvement in productivity by eliminating machining as much as possible while maintaining the function as a drive shaft.


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    Title :

    METHOD FOR MANUFACTURING FORGED DRIVE SHAFT AND FORGED DRIVE SHAFT


    Additional title:

    VERFAHREN ZUR HERSTELLUNG EINER GESCHMIEDETEN ANTRIEBSWELLE UND GESCHMIEDETE ANTRIEBSWELLE
    PROCÉDÉ DE FABRICATION D'ARBRE D'ENTRAÎNEMENT FORGÉ, ET ARBRE D'ENTRAÎNEMENT FORGÉ


    Contributors:

    Publication date :

    2021-01-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B21K MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS , Herstellen von Schmiede- oder Presserzeugnissen aus Metall, z.B. Hufeisen, Nieten, Bolzen oder Rädern / B21J FORGING , Schmieden / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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