Podcast
Questions and Answers
What are the five "M's" of manufacturing?
What are the five "M's" of manufacturing?
- Money, manpower, machines, materials, and measurement (correct)
- Management, manpower, machines, materials, and measurement
- Manpower, machines, materials, measurement, and management
- Money, management, machines, materials, and measurement
Which of the following is an example of a net shape or near net shape process?
Which of the following is an example of a net shape or near net shape process?
- Welding
- Metal casting (correct)
- Assembly
- Machining
Which of the following is an example of a net shape or near net shape process?
Which of the following is an example of a net shape or near net shape process?
- Assembly
- Machining
- Welding
- Metal casting (correct)
Which of the following is NOT a benefit of using net shape or near net shape processes?
Which of the following is NOT a benefit of using net shape or near net shape processes?
What is the difference between allowance and tolerance in engineered components?
What is the difference between allowance and tolerance in engineered components?
Which of the following is NOT a benefit of using net shape or near net shape processes?
Which of the following is NOT a benefit of using net shape or near net shape processes?
What does the IT grade refer to in industrial processes?
What does the IT grade refer to in industrial processes?
What is a potential problem with adopting net shape processes for large components?
What is a potential problem with adopting net shape processes for large components?
What is a potential issue with adopting net shape processes for large components?
What is a potential issue with adopting net shape processes for large components?
What is the relationship between the IT grade and tolerance in industrial processes?
What is the relationship between the IT grade and tolerance in industrial processes?
What is Ra in typical surface roughness values?
What is Ra in typical surface roughness values?
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Study Notes
- The five "M's" of manufacturing are money, manpower, machines, materials, and measurement.
- Metal shaping has several subdivisions and typical shaping processes.
- Allowance and tolerance must be specified in engineered components to obtain the desired fit between mating parts.
- Allowance is the intentional difference between the dimensions of two mating parts, while tolerance is the permissible deviation from a desired dimension.
- The IT grade refers to the International Tolerance Grade of an industrial process defined in ISO 286.
- The larger the ITG, the looser the tolerance.
- An industrial process has an IT Grade associated with it, indicating how precise it is.
- Typical surface roughness values include Ra, RMS, CLA, Rt, and N.
- Ra is the average roughness value in micro-meters or micro-inches.
- Cut-off length is the length required for a sample.
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