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TUBE PREP FOR THE DRAWING STEP

机译：拔管前的准备

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摘要

WHAT is push pointing? First, let's start with the definition of pointing. Pointing, sometimes called tagging or swaging, is a method of reducing a tube's end to permit it to pass through a draw die before a drawing operation. After the tube end goes through the draw die, gripper jaws converge on the point to begin the draw operation. Draw operations are performed on drawbenches or bull blocks. Push pointing is accomplished by gripping a tube and advancing pointing dies over the end, resulting in a reduced end diameter, usually 6 inches to 8 in. long. The push-pointing operation usually is performed cold. It can be performed warm or hot, but this is rare.
机译：什么是指点？首先，让我们从指向的定义开始。指向（有时称为标记或型锻）是一种减小管端以允许其在拉伸操作之前穿过拉伸模的方法。管端通过拉丝模后，夹爪会聚在该点上以开始拉丝操作。绘制操作在绘制台或牛栏上执行。通过抓住管子并在端部上推进定位模具来完成推入点，从而减小了端部直径，通常为6英寸至8英寸长。指点操作通常是冷执行的。可以热或热进行，但这很少见。

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