Selective assembly is a cost-effective approach for reducing the overall variation and thus improving the . quality of an assembled product . In this process, components of a mating pair are measured and grouped. into several classes (bins) as they are manufactured. The final product is assembled by selecting the com.
Which one is an example of selective assembly?
Examples: In interchangeability, the parts randomly selected will fit properly with any randomly selected mating component . In some cases this random assembly is not found to be achieved. For Example.
Why is selective assembly used?
Selective assembly is traditionally used to achieve tight clearance tolerances between mating parts that are manufactured using imprecise techniques ; leading to high quality assembly using inexpensive techniques [5-7].
What is meant by selective assembly interchange ability explain?
Interchangeability can be defined as it is a system of producing the mating parts . This system will be applied to interchangeability and then any one of the components will be selected at random to mate with other components which will also be selected at random. ...
What do you understand by Interchangibility?
Interchangeability can refer to: Interchangeable parts , the ability to select components for assembly at random and fit them together within proper tolerances. Interchangeability (computer science), the ability that an object can be replaced by another object without affecting code using the object.
What is the difference between tolerance and allowance?
Allowance: It is the difference between the basic dimensions of the mating parts. ... Tolerance: It is the difference between the upper limit and lower Tolerance: It is the difference between the upper limit and lower limit of a dimension.
What do you mean by interchangeable assembly?
Interchangeable parts are parts (components) that are, for practical purposes, identical . They are made to specifications that ensure that they are so nearly identical that they will fit into any assembly of the same type. One such part can freely replace another, without any custom fitting, such as filing.
What is the selective assembly?
Selective assembly is a cost-effective approach for reducing the overall variation and thus improving the . quality of an assembled product . In this process, components of a mating pair are measured and grouped. into several classes (bins) as they are manufactured. The final product is assembled by selecting the com.
Which is main advantage of interchangeability?
Advantages of interchangeability
Mating parts can freely replace without custom fittings like fillets . Readily available replacement component in the market. Assembly process requires lesser skill. Reduce cost and labor time by allowing easy maintenance.
What are the types of fits?
- Clearance Fit. Clearance fits allow for loose mating, where free movement is important and a certain amount of play is desired. ...
- Interference Fit. An interference fit will be much tighter than a clearance fit. ...
- Transition Fit.
Why tolerances are given to the parts?
Explanation: Tolerances are provided to the parts because variations in the material properties introduce errors and production machines themselves have inherent inaccuracies . Another reason to introduce tolerance is that it is not possible to make perfect settings by operator so some tolerances are provided.
How are interchangeable parts used today?
For example, cars, computers, furniture, almost all products used today, are made from interchangeable parts. ... Interchangeability of parts also allows products to be repaired by replacing a broken part with an identical new part . Eli Whitney was the first to use interchangeable parts in manufacturing.
What is limit system?
In mechanical engineering System of limits or Limit System is a concept of controlling the sizes of machine elements while manufacturing each component . ... So limit system enables how much amount of deviation is acceptable.
What wringing means?
transitive verb. 1 : to squeeze or twist especially so as to make dry or to extract moisture or liquid wring a towel dry. 2 : to extract or obtain by or as if by twisting and compressing wring water from a towel wring a confession from the suspect.
What are the types of interchangeability?
- Group interchangeability (selective assembling);
- Assembling on the basis of probability calculations;
- Assembling with adjusting of dimensions or positions of separate parts;
- Assembling with fitting of one of several assembling parts.
What is change ability?
Definitions of changeability. the quality of being changeable; having a marked tendency to change . synonyms: changeableness. Antonyms: changelessness, unchangeability, unchangeableness, unchangingness. the quality of being unchangeable; having a marked tendency to remain unchanged.
