WorksheetsMMT [S2025] - Chapter 1: Mechanical Processing Methods
Total questions: 25
Worksheet time: 20mins
Section 1: Forming Principle of Parts - Multiple-Choice Questions
1. Which principle involves removing material to achieve the desired shape (哪种成形原理需要通过去除材料来获得所需形状)?
A. Δm=0
B. Δm<0
C. Δm>0
D. None
A
B
C
D
Section 1: Forming Principle of Parts - Multiple-Choice Questions
2. What percentage of mechanical/electrical parts are made using molds (Δm=0)? (统计数据表明，机电产品中约多少比例的零件是通过模具成形的?)
A. 20–30%
B. 30–40%
C. 40–50%
D. 50–60%
A
B
C
D
Section 1: Forming Principle of Parts - Multiple-Choice Questions
3. Which process is an example of additive manufacturing (Δm>0) (以下哪种工艺属于增材制造（Δm>0）的示例)?
A. Forging
B. Laser cutting
C. 3D printing
D. Injection molding
A
B
C
D
Section 1: Forming Principle of Parts - Multiple-Choice Questions
4. What energy sources are used in "specialized machining" (Δm<0) (特种加工（Δm<0）主要利用哪种能量进行材料去除)?
A. Mechanical force
B. Electrical, optical, or chemical energy
C. Thermal energy
D. Hydraulic energy
D. Injection molding
A
B
C
D
Section 1: Forming Principle of Parts - Multiple-Choice Questions
5. Which of the following is a key feature of additive manufacturing (Δm>0) (增材制造（Δm>0）的核心特征是什么)?
A. Requires dedicated tools and fixtures
B. Uses layer-by-layer material accumulation
C. Only suitable for prototyping
D. Involves high material waste
A
B
C
D
Section 1: Forming Principle of Parts - True-False Questions
1. Casting and forging are classified under Δm=0 (判断题：铸造和锻造属于Δm=0的成形工艺).
True ✔️
False ❌
Section 1: Forming Principle of Parts - True-False Questions
2. 3D printing requires molds to create parts (3D打印需要模具来制造零件).
True ✔️
False ❌
Section 1: Forming Principle of Parts - True-False Questions
3. Rapid Prototyping (RP) can produce functional parts directly (快速原形技术（RP）可以直接制造功能零件).
True ✔️
False ❌
Section 1: Forming Principle of Parts - True-False Questions
4. Molds are typically mass-produced for industrial use (模具通常以大批量生产的方式制造).
True ✔️
False ❌
Section 1: Forming Principle of Parts - True-False Questions
5. Subtractive manufacturing (Δm<0) includes processes like grinding and waterjet cutting (磨削和水射流加工属于减材制造（Δm<0）工艺).
True ✔️
False ❌
Section 1: Forming Principle of Parts - Fill-in-the-Blanks Questions
1. (a) (Δm=0) manufacturing technology involves reshaping materials without changing their mass (e.g., casting). (用英语写下答案)
-
OPTIONS
Bio-materials || Single-unit || 3D CAD || Equal material || Electron beam machining
Section 1: Forming Principle of Parts - Fill-in-the-Blanks Questions
2. In additive manufacturing, parts are built using (a) model. (用英语写下答案)
-
OPTIONS
Bio-materials || Single-unit || 3D CAD || Equal material || Electron beam machining
Section 1: Forming Principle of Parts - Fill-in-the-Blanks Questions
3. Specialized machining methods like (a) are suitable for brittle materials. (用英语写下答案)
-
OPTIONS
Bio-materials || Single-unit || 3D CAD || Equal material) || Electron beam machining
Section 1: Forming Principle of Parts - Fill-in-the-Blanks Questions
4. Mold manufacturing often requires (a) production due to high precision demands. (用英语写下答案)
-
OPTIONS
Bio-materials || Single unit || 3D CAD || Equal material || Electron beam machining
Section 1: Forming Principle of Parts - Fill-in-the-Blanks Questions
5. 3D printing materials include metals, plastics, and even (a) . (用英语写下答案)
-
OPTIONS
Bio-materials || Single-unit || 3D CAD || Equal material || Electron beam machining
Section 1: Forming Principle of Parts - Fill-in-the-Blanks Questions
6. (a) 制造原理指成形前后材料质量基本不变（如铸造）。（用中文写下答案）
-
OPTIONS
等材 || 单件 || 三维CAD || 电子束加工 || 生物材料
Section 1: Forming Principle of Parts - Fill-in-the-Blanks Questions
7. 增材制造依据 (a) 数据逐层累加材料。（用中文写下答案）
-
OPTIONS
等材 || 单件 || 三维CAD || 电子束加工 || 生物材料
Section 1: Forming Principle of Parts - Fill-in-the-Blanks Questions
8. 特种加工（如 (a) ）适合加工易碎或超硬材料。用中文写下答案）
-
OPTIONS
等材 || 单件 || 三维CAD || 电子束加工 || 生物材料
Section 1: Forming Principle of Parts - Fill-in-the-Blanks Questions
9. 模具制造通常采用 (a) 生产，因其精度要求高。(用中文写下答案）
-
OPTIONS
等材 || 单件 || 三维CAD || 电子束加工 || 生物材料
Section 1: Forming Principle of Parts - Fill-in-the-Blanks Questions
10. 3D打印材料包括金属、塑料，甚至 (a) 。(用中文写下答案）
-
OPTIONS
等材 || 单件 || 三维CAD || 电子束加工 || 生物材料
Section 1: Forming Principle of Parts - Conceptual Questions
1. Explain why molds are critical in Δm=0 processes and provide an example (解释模具在Δm=0工艺中的重要性，并举例说明).
-
Note: Write your answer in Chinese/English.
(a)
Section 1: Forming Principle of Parts - Conceptual Questions
2. Compare additive and subtractive manufacturing in terms of tooling and complexity (对比增材和减材制造在工具需求和复杂形状处理上的差异).
-
Note: Write your answer in Chinese/English.
(a)
Section 1: Forming Principle of Parts - Conceptual Questions
3. Why is Rapid Prototyping (RP) considered a game-changer in product development (为何快速原形技术（RP）被视为产品开发的革命性技术)?
-
Note: Write your answer in Chinese/English.
(a)
Section 1: Forming Principle of Parts - Conceptual Questions
4. What challenges exist in mold manufacturing in China (中国模具制造面临哪些挑战？)?
-
Note: Write your answer in Chinese/English.
(a)
Section 1: Forming Principle of Parts - Conceptual Questions
5. How does 3D printing differ from traditional "rapid prototyping" (3D打印与传统“快速原形技术”有何不同)?
-
Note: Write your answer in Chinese/English.
(a)
