By the experiment of high-speed milling aluminium alloy with carbide end milling cutter, the method of helical chip formation was researched.

通过硬质合金立铣刀高速加工铝合金的铣削试验，对螺旋状切屑的成形进行了研究。

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There are some other GPS antenna technologies (chip, helical), but they are not as common, a bit more expensive, and require significantly more amplification and filtering.

还有一些其他的GPS天线技术(芯片，螺旋)，但它们并不常见，有点贵，需要大大增加放大和过滤。

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Spiral chip flute and helical cutting edge insert design, stable cutting condition, safety and reliability.

螺旋刃刀片设计，切削平稳，安全可靠。

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