QUALITY ASSURANCE AND REDUCTION OF LEAD TIME FOR CUTTING OPERATIONS

Información del proyecto

Identificador del acuerdo de subvención: BREU0354

Proyecto cerrado

Fecha de inicio 1 Febrero 1991

Fecha de finalización 31 Mayo 1994

Financiado con arreglo a

• Specific research and technological development programme (EEC) in the fields of industrial manufacturing technologies and advanced materials applications (BRITE/EURAM), 1989-1992

Coste total

Sin datos

Aportación de la UE

Sin datos

Coordinado por

Stichting voor Produktietechniek
Netherlands

Objetivo

Managing modern manufacturing equipment requires reliable and updated information on processes, tools; machines and materials. Particularly for SME's the information must be related to small batches and customer related production.

This project aims at the generation of knowledge of cutting processes in machining centres; resulting in a better controlled quality of the product, an improved productivity and a reduced lead time.
A project was created to provide the process planner of a small or medium sized enterprise with a tool that can support him in the selection of methods, cutting tools and conditions for finishing operations. The results were as follows:
knowledge was acquired on parameters that influence quality, lead time, and typical values for obtainable quality parameters;
knowledge was acquired on the performance of different sorts of tools in finishing operations;
specific test procedures for the measurement of quality and for the assessment of method and tool selection were developed;
a method for the theoretical evaluation of roughness for comparative studies was established;
insight into the influence of dispersion within a batch of inserts was gained;
improved knowledge on the effects of predrilling on the final quality was acquired;
a new software for the calculation of cutting conditions was elaborated;
extensive tests were executed with the newest tools;
the relations between superficial residual tresses and machining conditions in aluminium were elaborated, and introduced in machining models;
test procedures for stability, capability and accuracy for machine tools were developed that can be applied by machine shops. A prototype planning system was developed to document the results in a structured way, validate end results and communicate the results to industry. The prototype is distinct from other feature based process planning systems in that it can explain its decisions with respect to method and tool selection. Texts are associated with selection rules describing test results. The knowledge generated can be used by companies which use cutting processes:
to improve the quality of their products;
to decrease manufacturing costs. This sort of knowledge can be used in books, training sessions, software for process planning, and also for computer aided design/manufacture systems. The model describing the relation between cutting parameters and residual stresses will improve the quality of the manufacturing process of vital parts in the Aerospace industry.
We will try to reach these aims by :

1) evaluation of existing logic procedures and determination f new ones, based on existing software,

2) tests of machine tools,

3) tests of cutting tools,

4) development of models,

5) evaluation and test of acquired rules, recommendations and knowledge.

The knowledge generated in the project will be made available to SME's by :

- a methodological guide with rules and recommendations

- a database with data on tools, materials and machines including rules and recommendations for the application of these.

Furthermore the developed models will be introduced in software for optimising the choice of cutting conditions.

Ámbito científico (EuroSciVoc)

• ciencias naturales › informática y ciencias de la información › software
• ciencias naturales › informática y ciencias de la información › base de datos
• ingeniería y tecnología › ingeniería mecánica › ingeniería de fabricación › fabricación sustractiva
• ciencias naturales › ciencias químicas › química inorgánica › metales de postransición
• ciencias sociales › economía y empresa › ciencia económica › economía de la producción › productividad

Programa(s)

• FP2-BRITE/EURAM 1 - Specific research and technological development programme (EEC) in the fields of industrial manufacturing technologies and advanced materials applications (BRITE/EURAM), 1989-1992

Tema(s)

Datos no disponibles

Convocatoria de propuestas

Datos no disponibles

Régimen de financiación

Datos no disponibles

Coordinador

Stichting voor Produktietechniek

• Aportación de la UE: Sin datos
• Dirección: Pettelaarpark 21 90105 ; 5200 MA S-HERTOGENBOSCH ; Países Bajos
• Coste total: Sin datos

Participantes (5)

Aérospatiale Société Nationale Industrielle SA

Francia

• Aportación de la UE: Sin datos
• Dirección: 37 boulevard de Montmorency ; 75781 Paris
• Coste total: Sin datos

Centre Technique des Industries Mécaniques (CETIM)

Francia

• Aportación de la UE: Sin datos
• Dirección: 52 avenue Félix Louat ; 60304 Senlis
• Coste total: Sin datos

Centre de Recherches Scientifiques et Techniques de l'Industrie des Fabrications Metalliques - CRIF/WTCM

Bélgica

• Aportación de la UE: Sin datos
• Dirección: Celestijnenlaan 300C ; 3001 HEVERLEE
• Coste total: Sin datos

Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek

Países Bajos

• Aportación de la UE: Sin datos
• Dirección: 2595 CL DEN HAAG
• Coste total: Sin datos

Swedish Institute of Prod Eng Research

Suecia

• Aportación de la UE: Sin datos
• Dirección: Moelndalsvaegen 85 ; 41285 GOETEBORG
• Coste total: Sin datos