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cad/cam coding system
Transcript of cad/cam coding system
MULTIClass KK-3 • Its main purpose is the classification of machined parts in a general point of view.
• It was developed by the Japan Society for the Promotion of industrial machines (JSPMI, 1980).
• Parts to be classified are primarily metal cutting and components.
• Use a system of 21 decimal digits
• A modification of KK1. Is larger than the Opitz code Classified digits:
1. Name (2 digits)
2. Function: a) General b) Specify Material (2 digits)
3. Dimensional (2 digits)
. Length and b) diameter
4. Primary forms and relationship dimensions (1 digit)
5. Detailed forms and types of processes (13 digits)
6. Tolerances (1 digit) MIClass Developed in the Netherlands and maintained in the US by the Organization for Industrial Research
The abbreviation is derived from the name Metal Institute Classification System.
Developed to help automate & standardize a number of design, production and management function.
These include: Standardization of engineering drawings
Retrieval of drawings according to classification
Standardization of process routing
Automated process planning
Selection of parts processing on particular group of machine tools
Machine tool investment analysis etc.
The structure of the MICLASS coding system The structure of the MICLASS coding system The first four digits are used to provide information about the main shape of the part
The next four digits provide information concerning the main dimensions of the part.
Digits 9 & 10 provide tolerance information
Digits 11 & 12 specify the material composition of the part.
The remaining 18 digits are used to store company specific data.
The structure of the MICLASS code is interactive and generates a classiffication and coding for each part based on the response provided by the users to a series of questions MULTIClass This is the newest version of MICLASS and was developed by the Organisation for Industrial Research (OIR).
The MULTICLASS System can contain a MICLASS module which may be accessed directly, and it is possible to use MICLASS as the first step in the development of highly specific machined and sheet
metal part MULTICLASS codes.
The system is flexible, allowing the users to customise the classification and coding scheme to a large extent to fit their own product and application. It also permits the users to retrieve parts by keywords, individual characteristics, parts numbers, classification numbers, or other data.
Multiclass can be used for a variety of different types of manufactured items, including machined and sheet metal parts, tooling, electronics, purchased parts, assemblies and subassemblies, machine tools and other elements.
MULTICLASS is normally provided to the user with at least two general coding structures already installed -- for machined parts and for sheet metal parts. OIR specialists can then work with the user to define the other decision trees which will be needed initially. In time, the user will add other structures to meet specific needs as they evolve. In practice, the user has the opportunity to analyze his needs using the general coding structures and then design the more specific decision tree structures. It is much like having a large funnel and then using smaller funnels to catch more specific attributes. First 18 digits of the Multiclass Classification and Coding System EXAMPLES KK-3 MIClass MULTIclass