The technological process of manufacturing partsis the main document regulating the production of the product. It prescribes the sequence of processing (in the form of operations and transitions), the materials used, tools, equipment and modes that allow you to achieve the desired result. It also contains information about the main and auxiliary time spent on the production of one unit of production.
The technological process of manufacturing parts hasthe preparatory stage, during which a detailed analysis of the operating conditions of the finished product is performed. This allows you to study the validity of the proposed technical requirements for surface quality and dimensional accuracy. During the processability analysis, the possibility of manufacturing a part with specified tolerances on dimensions and deviations from the shape is controlled.
At the next stage, technologicalbase. They will determine the sequence of surface treatment in the future. If one succeeds in observing the principle of consistency of bases, the quality of the finished product will be much higher. After that, you can begin to develop a route.
The technological process of production can be:
single It implies the production of one product name, regardless of the required volume of production;
typical. Allows you to release a group of products with common structural and technological features;
group It is used if production of products with different structural and general technological features is necessary.
The manufacturing process must be developed taking into account the following requirements:
It should be based on the latest achievements of science and technology.
It should have a progressive impact onthe entire production cycle, increasing labor productivity and the quality of products, reducing labor and material costs for its implementation.
The technological process of manufacturing partsshould be based on existing standard and group technological processes. If there are none, then it is worth taking into account already known progressive solutions that have found application in individual technological processes developed for the production of similar products.
When developing it, all the most stringent requirements regarding safety, labor protection and industrial sanitation should be taken into account.
The technological process of manufacturing parts, as a rule, includes:
- procurement operation, during which the procurement is selected and prepared for the future product;
- roughing, for which there are large size allowances;
- semi-finish processing;
- finishing treatment, during which the required size is achieved, the specified accuracy and surface finish;
- control operation performed to determine the conformity of the finished product drawing.
В зависимости от геометрических размеров изделия and the requirements for it individual steps of the above sequence can be excluded. However, in all cases, the surfaces are first processed, which are taken as technological bases. After this, it becomes possible to finish the remaining surfaces.
In some cases, semi-finish processing mayabsent altogether, and the rough and fair are combined. If to achieve the required performance properties of the item is subjected to heat treatment, the process is divided into two parts: before and after the heat part of the finish.
A control operation can be provided after each type of treatment.
