What are the advantages of interchangeability?
Advantages of interchangeability
- Precise dimension is not essential, produce component within small dimension error limit.
- Economic oriented.
- Mating parts can freely replace without custom fittings like fillets.
- Readily available replacement component in the market.
- Assembly process requires lesser skill.
What are two advantages of interchangeable parts?
Interchangeable parts, popularized in America when Eli Whitney used them to assemble muskets in the first years of the 19th century, allowed relatively unskilled workers to produce large numbers of weapons quickly and at lower cost, and made repair and replacement of parts infinitely easier.
What are the advantages and disadvantages of production?
Production and operations: job production
| Advantages | Disadvantages |
|---|---|
| Product usually high quality | Cost of producing one unit or job is higher |
| Producer meets individual customer needs | Labour –intensive |
| Greater job satisfaction – involved in all stages of production | Requires investment in skills and training |
What is interchangeability in metrology?
Interchangeability can be defined as it is a system of producing the mating parts. To reduce the cost and time, mass production of the system was developed. In the production systems, the components will be produced in one or more batches by different operations on different machines.
What is the principle of interchangeability?
The Principle of Interchangeability of resources refers to the possibility of one resource to be used in the place of another in order to get a desired result without compromising the functionality and or expectation.
What is the concept of interchangeability?
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 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.
What is the difference between selective assembly and interchangeability?
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. Selective Assembly assures better and more accurate assembly of parts by insuring closer tolerances between the mating parts.
Which among the following is not an advantage of interchangeability?
5. Which of the following option is not correct for ‘full interchangeability’? Explanation: Full interchangeability is also known as universal interchangeability. Many times, universal interchangeability is not feasible because it requires machine capable of maintaining very high accuracy and high process capability.
What are 3 products today that use interchangeable parts?
For example, cars, computers, furniture, almost all products used today, are made from interchangeable parts.
How do you convert RZ to RA?
If you know the Rz, you can divide by somewhere between 4 and 7 to estimate the Ra that you will be able to pass with reasonable safety. But if you know the Ra, you should multiply by probably 15 to 20 to estimate the Rz value you will be able to pass.
What does Ra finish mean?
Ra is the arithmetic average of surface heights measured across a surface, Ra surface finish. Simply average the height across the microscopic peaks and valleys. Surface roughness can be measured by a profilometer, a surface profile measurement tool.
What does RA mean in machining?
Average Roughness
What does RA mean in surface roughness?
Roughness Average
What is the difference between roughness and waviness?
Waviness is the measurement of the more widely spaced component of surface texture. It is a broader view of roughness because it is more strictly defined as “the irregularities whose spacing is greater than the roughness sampling length”.
What is a finished surface?
Finished Surface. The inside face of a wall, window, ceiling or floor that is provided as part of the base building for the general use of occupants, excluding the thickness of any special surfacing materials applied to meet the particular needs of specific occupants. (
What affects surface finish?
The surface roughness of a workpiece produced by the finish turning process is affected by numerous factors that can be broadly divided into four main categories: (1) factors due to machining parameters, such as feed rate, cutting speed, and depth of cut, (2) factors due to cutting tool parameters, such as tool wear.
Which of the following is a surface finishing process?
1. Which of the following is a surface finishing operation? Explanation: Honing is a surface finishing operation used to give better surface finish and have very small material removal rate. 2.
What is primary and secondary texture?
The primary texture refers to the roughness of a surface. The secondary texture refers to the waviness of a surface. • The roughness and waviness are the two imperfections found between the primary and secondary texture.
What is surface texture metrology?
Surface metrology is defined as the measurement and characterisation of surface topography [5]. Surface texture is the geometrical irregularities present at a surface. Surface texture does not include those geometrical irregularities contributing to the form or shape of the surface.
Why surface finish is important in engineering applications?
For many engineering applications, the finish on a surface can have a big effect on the performance and durability of parts. Rough surfaces generally wear more rapidly and have greater friction coefficients than smooth surfaces.
Under Which group does waviness in surface falls?
Explanation: First group includes irregularities of considerable wave-length. These errors include irregularities of first and second order. These are mainly due to misalignment of centres. These errors are also referred to as Waviness.
What is the advantages of mechanical comparator over others?
What is the advantage of mechanical comparator over others? Explanation: Mechanical comparator is cheaper as compared to others. Mechanical comparators have more moving parts due to this friction is more and accuracy is less. External supply is not required.
What is go limit?
Explanation: ‘Go’ limit is applied to the limit corresponds to maximum material limit condition that is lower limit of hole and upper limit of shaft while ‘No Go’ limit is applied to minimum material condition that is upper limit of a hole and lower limit of a shaft. 3.