《数控技术专业英语（第3版）》习题解答（Unit 1~3）

阿明哥哥资料区 2019-06-12

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Unit 1

Ⅰ. Translate the following words or phrases into English.

1. precision product

2. machine a part

3. finishing operation

4. where to cut

5. how fast to feed或feed rate

6. job或workpiece或part或task或work

7. replace the tool

8. meet the specification

9. change或modify the program

10. resolve或solve或account for the problem

11. lathe 或turning machine

12. mill 或milling machine

13. boring machine

14. EDM machine

15. CNC machine或 CNC machine tool

16. computer control或CNC control 或CNC system

17. CNC programming (programmer)

18. CNC operation (operator)

19. cooling

20. lubrication

21. excessive vibration

22. metal stock

23. perform或carry out the function

24. perform或carry out the operation

Ⅱ. Fill in the blanks with the following words, changing their forms if necessary.

1. CAM

2. CAD

3. review, calculate, select

4. EDM

5. CNC

Ⅲ. Choose the best answer.

1. ( A )

2. ( C )

3. ( A )

4. ( C )

5. ( B )

Ⅳ. Fill in the brackets with words that have the similar meaning with the underlined words, changing their forms if necessary.

1. ( solve或resolve )

2. ( test或verify )

3. ( mistakes )

4. ( job或workpiece或work )

5. ( changed )

6. ( codes或commands )

7. ( cause )

8. ( great或large )

9. ( turning machines )

10. ( mills)

11. ( perform)

12. (test run)

13. (prints或drawings)

14. (machining operations needed)

15. ( manufacture/make/cut/machine )

Ⅴ. Choose the correct English explanation for each of the following words.

1. ( A ) 2. ( C )

3. ( C ) 4. ( A )

5. ( B ) 6. ( A )

7. ( B ) 8. ( C )

9. ( B ) 10. ( B )

Ⅵ. The following information relates to what machinists do. Match Column A with Column B.

Ⅷ.Translate the following passage into Chinese.

数控就业机会

能熟练使用数控机床的人员十分短缺，而且这种缺口越来越大。每到一处，我都听到制造业的人士埋怨无法找到熟练的工人。很遗憾，薪水的筹码还没有反映这种短缺，我也常常经历这种情形。即便如此，从事数控机床工作仍然可以赚得不少的钱，从而发展一份满意的事业。这里是从事数控机床工作的一些岗位名称。

制造企业

数控辅助工；数控刀具调整员；数控操作员；数控安装调试员；数控编程员；CAM系统编程员；数控维护员

数控机床销售公司

数控维修服务技师；数控应用工程师；数控培训师

学校

数控讲师

Unit 2

Ⅰ. Translate the following words into English.

1. spindle

2. drill press

3. scrap

4. accessory

5. Distributive Numerical Control

6. dry run

7. forward or reverse direction

8. conventional或common machine tool

9. CNC control

10. positioning

11.coordinate system

12. machining center

Ⅱ. Fill in the blanks with the following words, changing their forms if necessary.

1. CNC drilling center

2. axes

3. dry run

4. programmable

5. feed rate, spindle speed

Ⅲ. Choose the best answer.

1. ( C )

2. ( C )

3. ( C )

4. ( C )

5. ( A )

6. ( B )

7. ( A )

8. ( B )

Ⅳ. Write the full name of the following abbreviations.

1. CNC: Computerized Numerical Control

2. CAD: Computer Aided Design

3. CAM: Computer Aided Manufacturing

4. RPM: Revolution Per Minute

5. ATC: Automatic Tool Changing或Changer

6. PC: Personal Computer

7. DNC: Distributive或Direct Numerical Control

8. CAP:Computer Aided Programming

Ⅵ. Complete the tasks requested.

①-----spindle

②-----chuck

③-----table

④-----column

2. It’s a drillpress.

Unit 3

Ⅰ. Translate the following words into English.

1. drill

2. mill

3. bore

4. turn

5. tap

6. grind

7. ream

8. file

Ⅱ. Write the correct form of each word as requested.

rotation

complexity

automatic

axes

machine

reverse

verification

produce

specification

vibration

lubricate

mechanic

assignment

measurement

Ⅲ. Decide whether the following statements are true (T) or false (F):

1. ( T )

2. ( F )

3. ( F )

4. ( T )

5. ( F )

6. ( F )

7. ( T )

8. ( F )

Ⅳ. Fill in the brackets with words that have the similar meaning with the underlined words, changing their forms if necessary.

1.( method或way或means 或manner )

2.( specify或command )

3.( work zero 或 part zero )

4.( movement或traverse )

5.( way或style或method )

6.( movement )

7.( end )

8.( using )

9.( sets up 或creates )

10.( Remember )

11.( way 或method或technique )

12.( generally 或 usually )

13.( common )

14.( drawing或blueprint )

15. (make或 drill)

16. (manner或method)

17. (revolutions )

18. (wrong)

19. ( point或position)

20. ( servo motor)

Ⅴ. Fill in the blanks with the appropriate form of the underlined words which can be of the different form, or synonym, or acronym, etc.

1. precise

2. reduced或decreased

3. finished

4. machining

5. automatic或automated

6. accuracy

7. flexible

8. incremental

9. automatically

10. reverse

Ⅵ. Choose the best answer.

1. ( B )

2. ( A )

3. ( C )

4. ( B )

5. ( B )

6. ( B )

7. ( B )

8. ( C )

Ⅶ. Express the location of the position in English. See fig 3-8.

① two and a half inches to the right of the program zero point

② three inches above the program zero point

③ one and a half inches to the left of the program zero point

④one inch below the program zero point

Ⅷ. Composition. Write a short passage on how the CNC machine works, referring to fig.3-1.

When the NC command is input into the memory of the CNC control, the control makes the decoding and makes the interpolation along the contour. The output of interpolation usu. in the form of electrical pulses is compared with the output of the feedback devices. The greater is the deviation known as following error, the faster is the servomotor. Actually the error is entered into a speed control loop. The signal is amplified for powering the motor and the load. If the error is zero, the servomotor will stop in the position.

Ⅸ. Complete the following tasks according to the supplementary reading material.

Task 1: Decide whether the following statements are true (T) or false (F):

1. ( T )

2. ( F )

3. ( T )

4. ( T )

5. ( T )

Task 2: Fill in the blanks with the following words, changing their forms if necessary.

1.instructions

2.cutting tool, spindle, RPM, coolant, rapid, feed rate, spindle, tool, tool