SKEDSOFT

Quality Control Engineering

Standardisation

It is an activity, the essence of which is finding the solutions for repeated tasks in spheres of science, engineering and economics, directed to obtaining the
optimal level regulation in a certain brunch.

Standardisation is a planned activity to establish obligatory rules, norms and requirements, performance of which ensures economically optimal quality of products, increase of labour productivity and effective use of materials and capital equipment at observation of safety regulations.

Standardisation is an “engineering laws”. It is also a basis for interchangeability.

Diagram of quality management system

 

Standardisation resolves contradictions between all participants of process for creation of products (including designers, production and maintenance  engineers) due to they use the same source – standard.

Each standard contains a legislated error of manufacture that should be observed during some period of standard action (revision of a standard is performed each 5 years).

Types of standardisation are:

  • unification,
  • typification, and
  • unitization.

Unification

It is transformation of some objects to uniformity, or unified shape. It is rational reduction of quantity of elements of similar functional purpose, but without reduction of systems variety, in which they are applied.

At unification the variety of applied similar elements (holes diameters, thread dimensions, types of rolled products) is reduced. For instance, if calculated diameter is equal to 16.92 mm, then according to basic series of preferred numbers the diameter of 16 mm or 18 mm should be assigned.