AUTOMOBILE AXLE SHAFT AND THE MANUFACTURE METHOD

An automobile axle shaft and a manufacturing method thereof are provided to increase strength of the shaft and reduce noise and vibration by inserting a tube having a small diameter in a tube having a large diameter and contracting two ends through extrusion. A manufacturing method of an automobile...

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Bibliographische Detailangaben
Hauptverfasser:	CHOI, IN SOOK, JANG, JOON SOO
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	An automobile axle shaft and a manufacturing method thereof are provided to increase strength of the shaft and reduce noise and vibration by inserting a tube having a small diameter in a tube having a large diameter and contracting two ends through extrusion. A manufacturing method of an automobile axle shaft comprises the steps of: inserting a material(1') having a small diameter in a material(1) having a large diameter and preparing for extrusion; contacting the material having a small diameter with the material having a large diameter; forming space parts(s) between two materials; forming a diameter reducing part(3) and a spline part(4) to form splines(2) at two ends; forming the splines at the spline part through a rolling or cutting process and processing ring grooves(5); and cleaning a surface of the processed product and sorting the defect through a test.