SPIRAL FLUTE – These taps are used to produce a thread close to the bottom of a blind hole and therefore have a very short lead.
The right hand spiral cut of the flutes acts to force the swarf away from the cutting teeth to the rear of the flutes and out of the hole. They are better on materials which form long continuous stringy swarf, rather than chips.
They are also better to tap a thread in a hole where there is a break in the material, e.g. another hole, as the spiral fluting helps the tap to pick up on the other side. Spiral flute taps can have slow or fast helix angles.
Advantages
Can be used in both blind holes & also in through holes
Chips are pushed upwards due to spiral flute – Chip clogging avoided
Full thread depth can be achieved and this design prevents tap breakage
Spiral Flute Taps (SB)
The right hand spiral cut of the flutes acts to force the swarf away from the cutting teeth to the rear of the flutes and out of the hole. They are better on materials which form long continuous stringy swarf, rather than chips.
They are also better to tap a thread in a hole where there is a break in the material, e.g. another hole, as the spiral fluting helps the tap to pick up on the other side. Spiral flute taps can have slow or fast helix angles.
Advantages
Can be used in both blind holes & also in through holes
Chips are pushed upwards due to spiral flute – Chip clogging avoided
Full thread depth can be achieved and this design prevents tap breakage
Spiral Flute Taps (SB)
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冠以 Meta 虚名的幻境，是硅谷想象力匮乏的巅峰表现。他们所描绘的 #Metaverse# 愿景既不「元」也不「超」，并没有突破原有的互联网概念而上升到新的范畴，它即便在理想中也只是一个连接性更持久广泛、同步性更高、延迟更短、平台互通性更好、视觉效果更全面逼真顺滑、用户的社交经济活动链条更完整的——互联网。
这种未来想象的局限有着值得警惕的另一面：如果 #元宇宙# 没有真正的超越性和批判性，互联网在今天人类生活中引发的问题（抑或说人类在互联网中制造的问题）将原封不动、甚至变本加厉地在元宇宙中重现。其中最严重的就是：今天的网络已成为高度中心化的媒介形式，技术权力由科技巨头和全球政府垄断，「元宇宙」几乎必将继承而不是颠覆这一范式。
作者：Mira Ying
主站原文（包含完整拓展资料链接）：https://t.cn/A6x72co4
订阅会刊：https://t.cn/Rk6MVFp
https://t.cn/A6x72cob
冠以 Meta 虚名的幻境，是硅谷想象力匮乏的巅峰表现。他们所描绘的 #Metaverse# 愿景既不「元」也不「超」，并没有突破原有的互联网概念而上升到新的范畴，它即便在理想中也只是一个连接性更持久广泛、同步性更高、延迟更短、平台互通性更好、视觉效果更全面逼真顺滑、用户的社交经济活动链条更完整的——互联网。
这种未来想象的局限有着值得警惕的另一面：如果 #元宇宙# 没有真正的超越性和批判性，互联网在今天人类生活中引发的问题（抑或说人类在互联网中制造的问题）将原封不动、甚至变本加厉地在元宇宙中重现。其中最严重的就是：今天的网络已成为高度中心化的媒介形式，技术权力由科技巨头和全球政府垄断，「元宇宙」几乎必将继承而不是颠覆这一范式。
作者：Mira Ying
主站原文（包含完整拓展资料链接）：https://t.cn/A6x72co4
订阅会刊：https://t.cn/Rk6MVFp
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