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概述. 4.1. 4.2. 4.3. 4.4. 4.5. …. 形状公差. 位置公差. 形位公差的检测. 公差原则. 形位公差的选择. . 思考题与习题.  目的要求. 熟记 14 个形位公差特征项目的名称和符号。 理解掌握 14 个项目公差带的特点。 掌握公差原则中独立原则、包容要求及最大实体要求的基本 内容,会标注、理解含义、明确主要应用场合。 掌握评定形位误差时“最小条件”的概念,会应用“最小条 件”评定形位误差的大小。 初步掌握形位公差的选用方法。 了解标准中有关形位公差的公差等级及未注公差的规定。.

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4 1

4.1

4.2

4.3

4.4

4.5


4 1

  • 14

  • 14


4 1

4.1

4.1.1

4.1.2

4.1.3

4.1.4


4 1

3.1

4-14-2


4 1

4.1

4-1

4-2


4 1

4.1


4 1

4.1

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3.4-7 DLV =DLt = Dmax t = 20.05 0.02 = 20.07 mm

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4 1

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4 1

3.4.3

3.4-11

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3.4.3

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3.4.3

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3.4.3

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3.4.3

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3.4.3

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3.4.3

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3.4.3

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DL(Dmax)DaDMV(Dmint )


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3.4.3

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3.4.3

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4 1

3.5

3.5.1

3.5.2

3.5.3

3.5.4


4 1

3.5


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3.5.1

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