Unlike enterprises General engineering factories of ADS are characterized by a high saturation of all stages of production, a variety of processes that require complex high-precision multi-product, large amount of technological equipment and means of mechanization and automation of production.
Distinguish between main and auxiliary production. Primary production produces products. The auxiliary provides the main production of cutting, measuring and auxiliary tool, industrial equipment, carries out modernization and repair of equipment, etc.
To equip the main production of one type of engine is required to produce 10000...50000 items of tooling (machining, stamping, casting, welding, Assembly, etc.). The total number of tooling needed to produce one type of engine range from 300,000 to 600,000. That takes from 1,500 to 3,000 tons of material, which processing is performed in the shops of auxiliary production.
The structure of the complexity of manufacturing GTE
Machining – 50%
Assembly – 22%
Test – 6%
Forging and stamping works – 6%
Casting – 4%
Welding and brazing 2%
Heat treatment – 3%
Other – 7%
The first step in the development process is to develop drawings for manufacturability.
The main directions for improving technology is to standardize components in the new products with details of production.
Unification of constructive elements of radii, grooves, chamfers and technical requirements, materials and coatings.
Changing design of parts, Assembly units for applying workpieces with small margins, and applying advanced technologies.
Details of the processing takes into account the actual technological heredity – the phenomenon of migration properties of the processed object from the preceding to the subsequent operations, which further affects the operational characteristics of the part. In the transition from operation to operation can be maintained both positive and negative hereditary characteristics.