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Concurrent Manufacturing Planning and Shop Control for Small-Batch Production

Objective

The objective of COMPLAN is to develop an integrated system for concurrent process planning, scheduling and shop-floor control based on non-linear plans (ie process plans containing manufacturing alternatives) for small-batch manufacture of mechanical parts.

The following modules will form the COMPLAN system:

- a process planning oriented CAD/CAPP Programming Interface will provide the required direct coupling to a wide variety of CAD-systems and provide technical and geometric information
- an existing semi-automatic process planning system (running in 40 companies) and an existing expert shell for automatic process planning of a limited workpiece spectrum (EP 2457) will be adapted and merged to form a single planning environment allowing the generation of non-linear process plans. It will be integrated with a graphical editor for non-linear process plans (EP 2457)
- a process plan evaluator which will allow the process planning module to consider both actual and forecasted workshop loading information during the generation of non-linear process plans and during just-in-time process planning. Furthermore it allows manufacturing alternatives to be assessed with respect to times, costs, and technical validity
- a workshop control system, based on non-linear process plans will be integrated with the process planning system
- a production evaluator evaluates the quality of a schedule and determines the workshop performance in the past. The evaluation results will support and control both process planning and scheduling.

A pilot demonstration and evaluation are foreseen by a machine tool company (LVD) acting as a pilot end-user. The results will be incorporated in products marketed by vendor consortium members.

Coordinator

INSTITUT FÜR INTEGRIERTE PRODUKTION HANNOVER GMBH
Address
Lange Laube 13
30159 Hannover
Germany

Participants (6)

ADVANCED INFORMATION SYSTEMS N.V.
Belgium
Address
Avenue Joseph Wybran, 40
1070 Bruxelles
CRIF MECHANICAL ENGINEERING
Belgium
Address
Celestijnenlaan, 300C
3001 Heverlee
Competence Center Informatik GmbH
Germany
Address
Lohberg 10
49716 Meppen
KATHOLIEKE UNIVERSITEIT LEUVEN
Belgium
Address
Benedenstraat, 59
3000 Leuven
LVD COMPANY
Belgium
Address
Nijverheidslaan, 2
8630 Wevelgem
Universität Hannover
Germany
Address
Nienburger Straße 17
30167 Hannover