螺丝攻(手工具) Taps [hand tools] 螺丝攻的金属部分 Screw taps (Extension pieces for braces for –) 螺丝攻曲柄的延伸管件 Extension pieces for braces for screwtaps ..
基于12个网页-相关网页
The traditional operation of processing for tap hole includes two processes: at first drill a bottom hole which is less than the tap hole. Then process the thread of the tap hole with the screw tap.
传统的螺纹孔加工都需要经过两道工序:先用钻头加工出一个比螺纹孔直径略小的底孔,然后换成丝锥加工出螺纹。
参考来源 - 钻孔、攻丝一次成形设备的控制系统研究·2,447,543篇论文数据,部分数据来源于NoteExpress
应用推荐