dimensional tolerance

简明释义

尺寸公差

英英释义

例句

1.Quality control checks often focus on verifying dimensional tolerance during production.

质量控制检查通常侧重于在生产过程中验证尺寸公差。

2.The engineer specified a strict dimensional tolerance to ensure the part fits correctly in the assembly.

工程师指定了严格的尺寸公差以确保零件在装配中正确适配。

3.In the manufacturing process, maintaining dimensional tolerance is crucial for product quality.

在制造过程中，保持尺寸公差对产品质量至关重要。

4.The dimensional tolerance of this component is ±0.01 mm, which allows for precise machining.

该组件的尺寸公差为±0.01毫米，这允许进行精确加工。

5.If the dimensional tolerance is not met, it can result in costly rework or scrap.

如果未达到尺寸公差，可能会导致昂贵的返工或废品。

作文

In the field of engineering and manufacturing, precision is paramount. One of the key concepts that engineers must understand is dimensional tolerance, which refers to the permissible limit or limits of variation in a physical dimension. This concept is crucial in ensuring that parts fit together correctly and function as intended. Without proper dimensional tolerance, components may not align properly, leading to malfunctions or even failures in the final product.Dimensional tolerance can be classified into two main types: unilateral and bilateral. Unilateral tolerance allows variation in only one direction from the nominal dimension, while bilateral tolerance permits variation in both directions. For example, if a shaft is specified with a nominal diameter of 50 mm and a unilateral tolerance of +0.1 mm, it can measure anywhere from 50 mm to 50.1 mm, but not less than 50 mm. On the other hand, if the same shaft has a bilateral tolerance of ±0.1 mm, it can range from 49.9 mm to 50.1 mm. Understanding these distinctions is essential for engineers when designing components that must fit together.The importance of dimensional tolerance extends beyond mere fitting; it also affects the performance and reliability of mechanical systems. For instance, in automotive manufacturing, engine components must adhere to strict tolerances to ensure optimal performance and safety. If the tolerances are too loose, it may lead to increased wear and tear, decreased efficiency, and ultimately, engine failure. Conversely, overly tight tolerances can increase production costs and time, as well as make parts more difficult to manufacture. Therefore, finding the right balance in dimensional tolerance is essential for achieving quality and cost-effectiveness in production.Moreover, the concept of dimensional tolerance is not limited to mechanical parts. It is also applicable in industries such as electronics, where the precise dimensions of circuit boards and components are critical for functionality. In these cases, even minor deviations from specified tolerances can result in malfunctions or failures of electronic devices.In conclusion, dimensional tolerance is a fundamental aspect of engineering and manufacturing that ensures components fit together and operate effectively. By understanding the different types of tolerances and their implications, engineers can design products that meet both functional requirements and production constraints. The careful consideration of dimensional tolerance ultimately leads to higher quality products, enhanced performance, and greater customer satisfaction. Therefore, mastering this concept is vital for anyone involved in the fields of engineering and manufacturing.

在工程和制造领域，精确性至关重要。工程师必须理解的一个关键概念是尺寸公差，它指的是物理尺寸的允许变化限度。这个概念对于确保零件能够正确结合并按预期功能运行至关重要。如果没有适当的尺寸公差，组件可能无法正确对齐，从而导致最终产品的故障或失败。尺寸公差可以分为两种主要类型：单边公差和双边公差。单边公差只允许从名义尺寸的一个方向变化，而双边公差则允许两个方向的变化。例如，如果一个轴的名义直径为50毫米，单边公差为+0.1毫米，则它的测量范围可以在50毫米到50.1毫米之间，但不能少于50毫米。另一方面，如果同样的轴有±0.1毫米的双边公差，则它可以在49.9毫米到50.1毫米之间变化。理解这些区别对于工程师设计必须相互配合的组件至关重要。尺寸公差的重要性不仅仅体现在配合上；它还影响机械系统的性能和可靠性。例如，在汽车制造中，发动机组件必须遵循严格的公差，以确保最佳性能和安全性。如果公差过松，可能会导致磨损加剧、效率降低，最终导致发动机故障。相反，如果公差过紧，可能会增加生产成本和时间，并使零件更难以制造。因此，在生产中找到尺寸公差的正确平衡对于实现质量和成本效益至关重要。此外，尺寸公差的概念不仅限于机械零件。在电子行业中，这一概念同样适用，因为电路板和组件的精确尺寸对于功能至关重要。在这些情况下，即使是微小的公差偏差也可能导致电子设备的故障或失效。总之，尺寸公差是工程和制造的一个基本方面，它确保组件可以正确结合并有效运行。通过理解不同类型的公差及其影响，工程师可以设计出符合功能要求和生产限制的产品。对尺寸公差的仔细考虑最终将导致更高质量的产品、更好的性能和更高的客户满意度。因此，掌握这一概念对于任何参与工程和制造领域的人来说都是至关重要的。