大学MOOC Fundamentals of Machine Manufacturing Technology(Taiyuan University of Technology)1461336168 最新慕课完整章节测试答案
Unit 1Basic knowledge in the metal cutting process(1)
Basic knowledge in the metal cutting process(1)
1、单选题：
When n=120r/min,vf=480mm/min, the teeth of the face milling cutter z=20, the feed per tooth of the milling cutter is
选项：
A: 0.35mm
B: 0.3mm
C: 0.2mm
D: 0.4mm
答案: 【 0.2mm】
2、单选题：
The dimension of the cutting layer measured along the machined surface is called （ ）
选项：
A: cutting depth
B: cutting length
C: cutting width
D: cutting thickness
答案: 【 cutting width 】
3、单选题：
when the workpiece diameter decreases or the feed quantity increases, the working clearance angle of the turning tool （ ）
选项：
A: decreases
B: increases
C: unchanged
D: uncertain
答案: 【 decreases】
4、单选题：
The tool tip of the external turning tool is installed higher than the workpiece rotation axis, the working rake Angle of turning tool is （ ）than that of marked rake angle
选项：
A: lager
B: smaller
C: equal to
D: unidentified
答案: 【 lager】
5、单选题：
When the tip of turning too