【单选题】【消耗次数:1】
( )适宜加工机座、箱体、支架等外形复杂的大型零件直径较大的孔。
镗削
插销
刨削
参考答案:
复制
纠错
相关题目
【单选题】 加工机座、箱体、支架等外形复杂的大型零件上直径较大的孔,特别是有位置精度要求的孔和孔系,应该采用( )。
①  钻孔
②  铰孔
③  镗孔
④  磨孔
【判断题】 “一面两孔”常用作箱体零件的定位方式。
①  正确
②  错误
【判断题】 设计箱体零件加工工艺时,常采用基准统一原则。
①  正确
②  错误
【判断题】 平面磨削的加工质量比刨削铣削都高,还可加工淬硬零件。
①  正确
②  错误
【判断题】 加工箱体零件时,应选择装配基准面为精基准。
①  正确
②  错误
【判断题】 成批加工主轴箱零件时,一般采用箱体的顶平面作为精基准。()
①  正确
②  错误
【单选题】 车削加工适合于加工( )类零件。
①  回转体
②  箱体
③  任何形状
④  平面轮廓
【单选题】 加工中心加工时,零件一次安装应完成尽可能多的零件表面加工,这样有利于保证零件各表面的( )。
①  尺寸精度
②  相互位置精度
③  表面粗糙度
④  形状精度
【判断题】 减速器中的轴、齿轮、箱体都是通用零件。
①  正确
②  错误
【单选题】 甲乙两个车间工人日加工零件数的均值和标准差如下:甲车间:=70件,=5.6件,乙车间:=90件=6.3件,哪个车间日加工零件的离散程度较大()
①  甲车间
②  乙车间
③  两个车间相同
④  无法作比较
随机题目
【单选题】 If he had worked harder, he ___.
①  would succeed
②  had succeeded
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④  would have succeeded
【单选题】 The most important ___ of his speech was that we should all work whole-heartedly for the people.
①  element
②  sport
③  chance
④  point
【单选题】 Supposing the weather ___ bad, where would you go?
①  is
②  will be
③  were
④  be
【单选题】 We wont know whether it will be successful. We wont know whether there will be good ___.
①  ends
②  results
③  effects
④  causes
【单选题】 It has always been the ___ of our firm to encourage workers to take part in social activities.
①  plan
②  campaign
③  procedure
④  policy
【单选题】 He has left his book here on___, so that you can read it.
①  purpose
②  intention
③  aim
④  meaning
【单选题】 If I ___ it, I would do it in a different way.
①  were to do
②  do
③  had done
④  was to do
【单选题】 If he ___ he ___ that food.
①  was warned; would not take
②  had been warned; would not have taken
③  would be warned; had not taken
④  would have been warned; had not taken
【单选题】 Information has been put forward ___ more middle school graduates will be admitted into universities.
①  while
②  that
③  when
④  as
【单选题】 This is ___ the Shenzhou V Spaceship landed.
①  there
②  in which
③  where
④  when