【判断题】内、外圆固定循环切槽时,刀具的进刀方向是由循环指令中指定的起点和终点坐标确定的。
【单选题】The famous company is _____.
【简答题】根据句意,用括号内所给单词的适当形式填空。 1. All the family are looking forward to the arrival of my father's _______(四十) birthday. 2. What an _________ (comfort) day! So hot and wet! 3. The people buried (被埋) under the ...
【简答题】圆弧车刀的刃磨方法与刃磨外切槽刀相似,可用( )改磨。
【简答题】My father's company has been experiencing some _______________ difficulties, so they are going to have to lay off some staff. (respond,approached,legislation,financial,environment,benefit,individual,p...
【单选题】My father's company has been _____for two years .
【判断题】无论前置刀架还是后置刀架,只要从X轴正向向X轴负向切削的外圆割槽刀,刀尖方位号均为8号
【简答题】如图所示,毛坯为φ60X100mm的棒料,零件加工工艺路线设计:1、工件外圆表面的粗加工与精加工并倒角;2、螺纹退刀槽加工;3、螺纹的加工。刀具:1、外圆车刀(T0101),2、切槽刀(T0202,刀宽3mm)3、60°螺纹车刀(T0303)。选定粗车外圆参数:背吃刀量为2mm,预留精车余量X方向0.4mm,(直径值)、Z方向0.1mm,粗车进给速度0.3mm/r,主轴转速为800r/min,精车...
【单选题】文档中含沟槽要素阶梯轴类零件加工所选用的切槽刀为