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Freedom of creation lighting objects using rapid prototyping

RP technologies allow the manufacture of prototypes that can be used as concept,functional or technical models. These prototypes are a precious support for new productsdevelopment. Nowadays, Rapid Prototyping (RP) technologies are considered more mature, and theRapid Manufacturing (RM) concept is becoming progressively more reliable and employed indifferent areas. RM is also an additive process that creates dir...

Tribological behaviour of epoxy based composites for rapid tooling

Epoxy resin composites are frequently applied in moulds manufactured with rapid tooling technologies that are used for wax and polymer materials injection. With the propose of enlarging the application field of the polymer matrix systems, it is fundamental to select adequate dispersed phases and analyse their influence on the composite properties in order to reinforce the polymer matrix and tailor the propertie...

Look and Feel, CAD Systems Innovations

The state of the art of some technologies that are focused to accelerate the product conception and development step is analysed. CAD and Reverse Engineering technologies that are employed in the first phases of the development process have a significant influence on the time consumed to produce prototypes for customers' approval. The integration of haptic interfaces in CAD systems, which at present state are a...

Design epoxy resins based composites for rapid tooling applications

The objective of this work was the development of epoxy-based composites moulds to inject functional polymer prototypes and pre-series. This indirect rapid tooling (RT) process (firm tooling) offers a high potential for a faster response to the continuous more demanding market needs, creating in this way a new competitive edge. The moulds developed are composed by an epoxy resin and aluminium particles, which w...

Indirect rapid tooling with aluminium and milled fibre reinforced resins

It is well known that Rapid Prototyping (RP) and Rapid Tooling (RT) are fundamental technologies to reduce the time tomarket and consequently increase productivity and competitiveness of companies working in different industrial sectors.RT with epoxy resins is presently accepted as an established process of indirect rapid tooling. However, patents,processing difficulties and companies limitations disable a wide...

Rapid tooling for plastic injection moulding using indirect rapid tooling proce...

Rapid Prototyping (RP) and Rapid Tooling (RT) are well known processesfor rapidly develop new products and consequently reduce the time to market. InPortugal, many companies are still not exploring the full advantages of usingthese technologies for new products development and produce reduced runs.This work presents some results obtained with composite tools manufactured forthermoplastics injection. These tools...

Estudo da injecção de termoplásticos em moldes produzidos em compósitos de base...

Impact Fracture Study of Filled Epoxy Resins

Epoxy-based composites moulds are frequently used for wax and polymer materials injection.Tri-phase materials, composed by an epoxy resin, aluminium particles and milled glass orcarbon fibres were produced with better mechanical and thermal performances than the single materials,increasing the competitiveness of the epoxy rapid tooling processes. Charpy Impact testswere employed to obtain a qualitative indicati...

Utilização de fibras moídas no fabrico de ferramentas de matriz polimérica

The contribution of the new technologies to the 21st - Century Design

In the past the market economy was dominated by the local and regional design,characterized for strong links to the customs, traditions and natural resources from eachregion.As the consequence of the technological advances and the growing needs of consumption,at present, products are manufactured based on economical, functional and marketingcriterions, which means that their design is very offset from the regio...