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发明公开
CN106812909A 精确对准、摩擦焊接的螺旋锥或准双曲面环形齿轮和差速器箱总成 有权

精确对准、摩擦焊接的螺旋锥或准双曲面环形齿轮和差速器箱总成
摘要：
一种用于制造环形齿轮/差速器箱总成的方法，包括将环形齿轮附接到差速器箱。环形齿轮和差速器箱由具有不同性质的材料制成。该附接包括将环形齿轮的第一部分与差速器箱的第一部分置于紧密接触，从而在环形齿轮的另一部分和差速器箱的另一部分之间限定预定间隙。环形齿轮第一部分通过摩擦焊接工艺附接到差速器箱第一部分。预定间隙限定用于接收由摩擦焊接工艺的镦锻步骤产生的溢流材料的流出通道。描述了差速器总成和包括差速器总成的车辆。
摘要（英）：

A method for manufacturing a ring gear/differential case assembly includes attaching a ring gear to a differential case. The ring gear and the differential case are fabricated of materials having differing properties. The attaching includes placing a first portion of the ring gear in intimate contact with a first portion of the differential case whereby a predetermined gap is defined between another portion of the ring gear and another portion of the differential case. The ring gear first portion is attached to the differential case first portion by a friction welding process. The predetermined gap defines an outflow channel for receiving an overflow material created by an upset forging step of the friction welding process. Differential assemblies and vehicles including such are described.

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