本文首先将内孔拉削系统简化为单自由度系统，给出其振动的数学模型并对其进行运算和处理。
In this article the broaching internal round hole system is simplified to the single-freedom system. Themathematicsmode of vibration is given, calculated and dealt with.
本文首先将内孔拉削系统简化为单自由度系统，给出其振动的数学模型并对其进行运算和处理。
In this article the broaching internal round hole system is simplified to the single-freedom system.
对厚壁件内孔拉削精度进行了试验研究，结果表明：刀具初期磨损阶段，工件孔径尺寸偏大，且变化较快；
Experimental study of broaching precision of heavy wall workpiece shows that workpiece aperture turns large in initiative wearing stage of the tool, and the change is fast;
本公司能够生产高质量的翻边瓦 内孔拉轴瓦 小孔钢质油环（活塞环）等，产品达400多种．主要销往欧洲、拉美、中东、俄罗斯和东南亚等国家。
There are more than 400 kinds of such products, It mainly sells to Europe, Latin-America, Middle-East, Russia and Southeast Asia.
非开挖反向回拉扩孔施工过程中时常出现钻杆正转而发生退扣，造成钻具孔内脱落事故的反常现象。
The dropping buckle usually occurs when reverse pulling is used for expanding the bore in the trenchless construction, thus causing the fall-off of the drilling tools.
围带自锁状态下内弧表面的最大离心应力发生在外拉筋孔截面的拉筋孔靠进汽侧处；
When the blade shroud under the status of self locking, the maximum centrifugal stress of the concave will occurred on the section of outer lace hole and nearby the leading edge.
研制了用于加工摩托车离合器外环内孔表面的三键圆弧摆线拉刀，分析了拉刀的结构特点和设计、制造要点。
The three spline broach with radius pendulum profile is developed to broach the internal surface of motorcycle clutches.
安装工具将套筒定位在孔内，同时向往外拉心轴，套筒受力膨胀，心轴在预定受力点被拉断。
The installation tool maintains sleeve position in the hole while pulling the mandrel into, and expanding the sleeve until the mandrel breaks off at a predetermined point.
该中巢的内孔壁上设有限拉凸筋，张力弹簧抵靠该凸筋的下端。
The inner hole wall of the middle nest is provided with a draw limiting convex rib, and the tension spring contacts the lower end of the convex rib.
该中巢的内孔壁上设有限拉凸筋，张力弹簧抵靠该凸筋的下端。
The inner hole wall of the middle nest is provided with a draw limiting convex rib, and the tension spring contacts the lower end of the convex rib.
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