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Tolerances on dimensions are essential because they account for manufacturing variations and ensure that parts fit and function together properly. They provide a range of acceptable measurements, allowing for minor deviations while maintaining the integrity and performance of the final product. Without tolerances, even small discrepancies could lead to assembly issues, reduced reliability, or failure of components in practical applications. Ultimately, tolerances enhance quality control and facilitate efficient production processes.
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On a manufacturing drawing what does it mean to hold dimension?
Every dimension has a shown or implied tolerance, the dimensions shown as HOLD are the dimensions that are not to be affected by the stack up of tolerances of the holes or features around them.
How do dimensions given in the specifications differ from the dimensions required on the working drawings?
If the working drawings are what is used to manufacture the object then there should be no difference. There will be more detail given in the working drawing but they would be engineering tolerances.
3. What is the difference between chain dimensioning and datum dimensioning?
Chain dimensioning involves placing dimensions in a linear sequence, where each dimension is referenced from the previous one, which can lead to cumulative tolerances and potential inaccuracies. In contrast, datum dimensioning establishes a reference point or surface (datum) from which all other dimensions are measured, ensuring consistency and precision across the entire part. This method reduces the accumulation of tolerances and enhances the reliability of the dimensions. Overall, datum dimensioning is generally preferred for critical applications where accuracy is paramount.
How do you find dimensions?
You take a ruler or tape measure and measure the dimensions you need.
What do you need to duplicate a rectangle?
You need to measure the dimensions.
When using a datums when inspecting manufactured parts do the dimensions have to be relative to each datum?
The dimensions have to be within the tolerances of a specified datum.
Why do engineers place tolerances on dimensions?
because to fine out up and down valu.
On a manufacturing drawing what does it mean to hold dimension?
Every dimension has a shown or implied tolerance, the dimensions shown as HOLD are the dimensions that are not to be affected by the stack up of tolerances of the holes or features around them.
What are tolerances as per DIN 2768 mk?
DIN 2768 mk refers to a standard in Germany that specifies tolerances for linear dimensions, particularly in mechanical engineering and manufacturing. It categorizes tolerances into different classes, ranging from very tight to coarse, depending on the precision required for specific applications. The standard helps ensure consistent quality and interoperability of components by providing guidelines on allowable deviations from specified dimensions. This is crucial for maintaining the functionality and fit of assembled parts.
How do dimensions given in the specifications differ from the dimensions required on the working drawings?
If the working drawings are what is used to manufacture the object then there should be no difference. There will be more detail given in the working drawing but they would be engineering tolerances.
On a blueprint a dimension is located where on the dimension line?
The dimensions, tolerances and so forth is either over a horizontal line, or to the left of a vertical.
What is the difference between a general tolerance and specific tolerance?
when reading a blueprint, a general tolerance would apply for all dimensions that are not individually identified. eg, all tolerances are +\- .030" General tolerances are normally found in the information blocks of the blueprint. If for example a tighter tolerance is required, then a specific tolerance is noted for certain areas of the blueprint. These tolerances are normally found beside the affected area.
What is the difference between a general and specific tolerance and how can you tell the difference on the drawing?
when reading a blueprint, a general tolerance would apply for all dimensions that are not individually identified. eg, all tolerances are +\- .030" General tolerances are normally found in the information blocks of the blueprint. If for example a tighter tolerance is required, then a specific tolerance is noted for certain areas of the blueprint. These tolerances are normally found beside the affected area.
3. What is the difference between chain dimensioning and datum dimensioning?
Chain dimensioning involves placing dimensions in a linear sequence, where each dimension is referenced from the previous one, which can lead to cumulative tolerances and potential inaccuracies. In contrast, datum dimensioning establishes a reference point or surface (datum) from which all other dimensions are measured, ensuring consistency and precision across the entire part. This method reduces the accumulation of tolerances and enhances the reliability of the dimensions. Overall, datum dimensioning is generally preferred for critical applications where accuracy is paramount.
What is baseline dimensioning?
Baseline dimensioning is a method of dimensioning in technical drawings where all dimensions are referenced from a single baseline, reducing the chance of errors due to accumulation of tolerances. It helps to maintain clarity and consistency in the layout of dimensions on a drawing.
Introduction to tolerance chart how it works?
A manufacturing tolerance chart can be defined as a graphical representation of a sequence of metal removal operations. Such a chart provides the raw material dimensions, the rough cut, semi finish and finish machining dimensions for each machining operation along with the machining tolerances, stock removal amounts for each cut and the resultant finish dimensions and tolerances. These charts were used for many years to help produce cost effective processes that provided the most liberal machining tolerances while meeting the B/P requirements. In recent years, because of increased machining accuracy, the tolerance chart is frequently ignored and processes are developed more by trial, error and experience.
Tolerances of refer to how well a feature matches a theoretically perfect feature?
Tolerances refer to the permissible limits of variation in a feature's dimensions or characteristics, indicating how closely it must align with an ideal or theoretically perfect standard. These specifications ensure that parts can function properly together in a larger assembly, even if they have slight deviations. Properly defined tolerances are crucial in manufacturing and engineering to maintain quality and performance while allowing for practical production variances.
