提高加工精度有利于改善轮座和轮毂孔接触状态，降低轮座因压装产生的最大残余拉应力。
Improvement of the processing precision can help to improve the contact state between wheel seat and wheel hub bore, reduce the maximum residual pull stress in wheel seat due to press mounting.
为了满足轮毂孔的位置要求，介绍了在摇臂钻床上使用的简易钻模的结构原理、操作过程和特点。
In order to meet the requirements for the position of hub hole, the paper introduces the structure principle, operation process and characteristics of simple drilling jig used in the beam drill.
键槽轮毂的锥孔应至少有70%的着色（表面接触）转移到锥度计上？
Tapered bores for keyed hubs shall have a minimum of 70% transfer of bluing (surface contact) to the taper gage.
介绍了汽车轮毂侧孔成形新方法的工作原理、模具结构及典型零件设计。
The work principle, die structure and typical part design of the new forming method of lateral holes on automobile hub have been introduced.
汽车轮毂PCD值是指螺栓安装孔的中心连接而成的截面圆的直径。
The Wheel PCD is the diameter of the studs from the centre of the wheel.
汽车轮毂PCD值是指螺栓安装孔的中心连接而成的截面圆的直径。
The Wheel PCD is the diameter of the studs from the centre of the wheel.
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