Optiz

Optiz
The Opitz Classification System (Developed by the Technical University of Aachen): the code number has a maximum of 13 positions. Each position may assume 10different values (attributes).

Basic structure of the Opitz system
1 2 3 4 5 6 7 8 9 A B C D
Form Code SupplementarySecondary Code
Code
Form code: describes the primary design attributes of a part
Supplementary code: describes manufacturing relatedattributes
Secondary code: more detail of manufacturing attributes

Basic Structure of the Opitz Parts Classification and Coding System

Basic structure of the Opitzsystem of parts classification and coding

Form code (digits 1-5) for rotational parts in the Opitz coding system

Ejemplo 1: A part coded 20801

 2 - Parts has L/Dratio >= 3
 0 - No shape element (external shape elements)
 8 - Operating thread
 0 - No surface machining
 1 - Part is axial

Ejemplo 2: given the part designshown define the "form code" using the Opitz system

Paso 1: The total length of the part is 1.75, overall diameter 1.25,
L/D = 1.4 (code 1)
Paso 2: External shape - arotational part that is stepped on both
with one thread (code 5)
Paso 3: Internal shape - a through hole (code 1)
Paso 4: By examining the drawing of the part (code 0)Paso 5: No auxiliary holes and gear teeth (code 0)
Code: 15100

Bibliografia:http://wwwme.nchu.edu.tw/~CIM/courses/Flexible%20Manufacturing%20Systems/Microsoft%20Word%20-%20Chapter7F-GT%20and%20FMS.pdf
http://wwwme.nchu.edu.tw/~CIM/courses/Computer%20Integrated%20Manufacturing/Chapter4%20-Group%20Technology%20in%20MFG%20Systems.pdf