2021 Fundamentals of Machine Manufacturing Technology(Taiyuan University of Technology) 最新满分章节测试答案

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本课程起止时间为:2021-03-08到2021-07-07

Unit 1：Basic knowledge in the metal cutting process(1) Basic knowledge in the metal cutting process(

1、 问题: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、 问题: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、 问题: 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、 问题: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、 问题:When the tip of turning tool   is at the highest position of the main cutting edge, The inclination angle of the edge is (  )
选项：
A:-
B:+
C:0
D:uncertain
答案: 【+】

6、 问题: (  ) reflects the work load on the cutting edge per unit length
选项：
A:cutting depth 
B:cutting layer
C:cutting length 
D:cutting width 
答案: 【cutting width 】

7、 问题:There is one and only one (    ) on the various machine tools.
选项：
A:main motion
B:feed motion
C:cutting motion
D:tool motion
答案: 【main motion】

8、 问题:In machining, the surface being machined by the main cutting edge is (     )
选项：
A: surface of the blank
B:machining surface
C:machined surface
D:surface to be cut
答案: 【machining surface】

9、 问题:When drilling, the  back engagement is equal to (      ).
选项：
A:the drill diameter
B:half of the drill radius
C:hole depth
D:the drill radius
答案: 【the drill radius】

10、 问题:The sum of rake Angle, clearance angle and wedge Angle is (   ).The sum of the major cutting edge angle,  minor cutting edge angle, and tool included angle. is (    )
选项：
A:90 °   ,  180 °
B:90 °   ,  90 °
C:180 °   ,  180 °
D:180 °   , 90 °
答案: 【90 °   ,  180 °】

11、 问题:The orthogonal plane reference system is composed of three coordinate planes: the reference plane,               and the orthogonal plane.
选项：
A: normal  section 
B:longitudinal section
C:the cutting edge plane
D:transverse section
答案: 【the cutting edge plane】

12、 问题:When installing the turning tool, If the center line of the tool bar is not perpendicular to the feed direction, it will cause the change of the tool major cutting edge angle   and the minor  cutting edge angle.
选项：
A:正确
B:错误
答案: 【正确】

13、 问题:Due to the influence of cutting movement, the position of the base plane and the cutting plane changed, resulting in a change in the working Angle. 
选项：
A:正确
B:错误
答案: 【正确】

14、 问题:Due to the influence of cutting movement, the position of the base plane and the cutting plane changed, resulting in a change in the working angle.
选项：
A:正确
B:错误
答案: 【错误】

15、 问题:The inclination angle of the tool cutting edge is measured in the reference plane.
选项：
A:正确
B:错误
答案: 【错误】

16、 问题:Cutting parameters include cutting speed, feed and cutting thickness.
选项：
A:正确
B:错误
答案: 【错误】

17、 问题:When turning, the parameters of the cutting layer are measured in the reference plane.
选项：
A:正确
B:错误
答案: 【正确】

18、 问题:The height of turning tool installation has the same effect on the rake and clearance  angles, when machining the outer circle and the inner hole. 
选项：
A:正确
B:错误
答案: 【错误】

19、 问题:The three planes of the normal plane reference system are perpendicular to each other
选项：
A:正确
B:错误
答案: 【错误】

20、 问题:when drilling,  the cutting speeds are the same at all points on the main cutting edge of the drill.
选项：
A:正确
B:错误
答案: 【错误】

21、 问题:The tool angles measured in the reference plane are  major cutting edge angle,  minor cutting edge angle, and tool included angle
选项：
A:正确
B:错误
答案: 【正确】

22、 问题:when drilling, the drill rotates and moves axially. Thus, The main motion   is the motion of the drill.
选项：
A:正确
B:错误
答案: 【错误】

【作业】Unit 1：Basic knowledge in the metal cutting process(1) Basic knowledge in the metal cutting proc

1、 问题:Write out the main motion of each cutting method in the table below  Cutting methodmain   motion1turning,Rotational motion of the workpiece2milling 3drilling 4boring 5Planning   (on shaper) 
评分规则: 【 Rotational motion of the  milling cutter
Rotational motion of the tool in drill
Rotational motion of the tool in boring
Reciprocating motion of the planer
】

2、 问题:What kinds of tool static reference system are there? Which reference planes do they consist of?
评分规则: 【 There are three kinds: main section reference system , normal section reference system  transverse section or longitudinal section system
Pr-Ps-Po constitutes an orthogonal  coordinate system
The normal section reference system is composed  of  Pn – Pr -P s
The transverse section or longitudinal section system is composed of Pr-Pf-Pp
】

Unit 2 ：Basic knowledge in the metal cutting process（2） and Basic rules in the metal cutting process

1、 问题: Processing  plastic metallic materials , Cutting tool materials are often used (      ) cemented carbide.
选项：
A:YT
B:YG
C:金刚石
D:T8
答案: 【YT】

2、 问题:In cutting, the length of the chip is usually  (     )  the length of the cutting layer.
选项：
A:longer than