4MVNM9NFOMm tech.huanqiu.comarticle中国工匠让最快高铁也能急刹/e3pmh164r/e3pmh16qj<article><section data-type="rtext"><p><video controls src="https://v6.huanqiucdn.cn/4394989evodtranscq1500012236/39ff98361397757911468482528/v.f100830.mp4" data-alt="" poster="https://v6.huanqiucdn.cn/4394989evodtranscq1500012236/39ff98361397757911468482528/sampleSnapshot/sampleSnapshot_10_0.jpg?imageView2/2/w/1260"></video></p><p>全球最快高铁CR450动车组，能在112秒的制动时间里实现时速400公里到0，制动盘盘毂是关键。数控车工张洪宾和团队突破创新，听切削声判断刀尖磨损，尝试7种刀具、9种走刀路径，最终让盘毂的精度达到0.005毫米，只有头发丝直径的十六分之一！</p></section></article>1746112902795责编：花争<a href="https://weibo.com/2656274875/PpQwE2xLv" >央视新闻微博</a>174611290279511[]{"email":"huazheng@huanqiu.com","name":"花争"}