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三百九十八章:使出浑身解数

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“嗡嗡”主轴带动的钻头旋转摩擦声音,就像一头在低沉嘶吼的巨兽。

降温用的切削液,更是不要钱似地被调到最大。

直播间里的学生们,再次屏气凝神。

时间一流逝,过了一分钟后。小林井有些站不住了,连忙到到五轴加工中心跟前,伸头隔着观察窗往里望。

因为足足过了一分钟,主轴竟然还没有移动。

五轴加工中心,厉害之处就在于主轴可以多角度随意移动。这比传统机床移动被加工材料,要更容易保持精度。

可一分钟过去了,主轴没有移动只能说明一件事情,主轴上的钻头,还没有把那块材料削切好。

“转速加到两千。”小林井悄悄地说道。

“呼嗡”

这台高速加工中心,转速被加大后,钻头在铁尺上的摩擦声,连直播间里的学生们,听了都忍不住汗毛竖起。

袅袅的青烟,从五轴加工中心的观察窗内,徐徐升起。

还没等他们回过神,青烟就打了鸡血一样孙迅速变为黑烟。

“烧刀了烧刀了”旁边中云大学的学生焦急的提醒:“快停机,别弄坏了咱们设备。”

日理工的学生赶紧把加工中心停了,自动舱门开启,用来降温的切削液与金属被高温加热发出的烟雾,呛的人直咳嗽。

好在循环的切削液很快把钻头冷却,日理工的学生们取下钻头一看,脸颊顿时变成了火烧云。

钻头的部,已经因为高温,而烧出了彩虹一样的五颜六色痕迹。这种通常发生在作坊级加工厂的事情,竟然发生在了他们身上。

摩擦会引起高温,正常情况下,有削切液和削切出的金属丝散热,钻头不会出现烧刀情况。但如果主轴给刀,而材料又纹丝不动,那摩擦力就会继续上升,随着转速加快,连切削液也带不走全部热量,继而出现烧刀情况。

那根铁尺也被从夹具上取了下来,然后所有人都看见,铁尺的背面,竟然没有一儿痕迹。

也不是完好无损,凑近用放大镜观察,还是能看见之前钻头加工的地方,有一些毛糙的感觉。

但是想在上面刻字的话,再烧毁一千个刀头,也别想刻出。

“这这不可能!”负责操控五轴中心的天中同学,用防护手套握住铁尺大叫:“怎么会连一个坑都钻不出来?”

小林井之前还当着镜头面儿,说要给大家展示一下,我们国家在金属材料学上的水平。

现在刀头都被他们玩烧了,与完好无损的铁尺前后对比之下,直播间内的观众们,都快把一口水笑喷在屏幕上。

“量不出准确精度就算了,现在连字也刻不出来。请允许我同情他们01秒钟。”

“平心而论,他们在材料学上确实甩我们一节,不过谁让我们有巨兽重工呢?”

“我决定了,毕业就去巨兽重工上班,太有荣誉感了。”

“那个要去巨兽重工上班的,快醒醒。”

半小时后,经过日理工这边的紧张准备,铁尺被移到了等离子电弧切割机床上。

小林井已经决定无论如何,也要把这个字给刻出来。

电弧切割虽然适合对付高硬合金,但它的切割,丝毫没有精度可言。就算最后能切出那几个字,别说达到水平角看不出字迹的惊人效果,哪怕连稍讲究的观赏水平都满足不了。

耀眼蓝色电弧,在铁尺背面肆虐,电弧击穿空气的巨大噪音,更是鞭笞着附近学生们的耳膜。

很可惜,发生在五轴加工中心上的一幕,再次发生在了等离子电弧切割机上。电弧肆掠了无数道,可下面的双轴移动工作台纹丝不动。

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