Automobile kidney-shaped bush production method

The invention discloses an automobile kidney-shaped bush production method. Through the automobile kidney-shaped bush production method, the situation that a base material cracks easily in the whole machining process is avoided. The method comprises the steps of (1) punching locating holes and edge...

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Bibliographische Detailangaben
Hauptverfasser:	GONG ZIYUE, QIAN SONG, SUN CHENGYAN, QIN SHUANGXU, WEI ZHIYONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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:	The invention discloses an automobile kidney-shaped bush production method. Through the automobile kidney-shaped bush production method, the situation that a base material cracks easily in the whole machining process is avoided. The method comprises the steps of (1) punching locating holes and edge material holes; (2) punching middle material holes; (3) conducting stretching; (4) conducting shaping, specifically, utilizing shaping heads to gradually shrink the size of kidney-shaped boss bottoms, gradually lowering the height of bosses and gradually enlarging the size of boss interior upper surfaces at least twice, only shrinking the size of the boss bottoms before shrinking the size of the boss bottoms and enlarging the size of the boss interior upper surfaces at last time, and finally shrinking the size of the boss bottoms and enlarging the size of the boss interior upper surfaces to enable the size of the boss bottoms to be equal to the size of the boss bottoms of a finished automobile kidney-shaped bush pr