11 documents found, page 1 of 2

Developing Ti Jewelry Through Additive Manufacturing and Conversion Technologies

Nowadays there are an enormous variety of titanium (Ti) jewelry artifacts. These products have a high specific strength, are corrosion resistant, promote a warm feeling to the human touch and are easily surface modified by temperature or anodization to acquire a sophisticated aesthetic colour. Ti is more durable than gold or platinum, has a lower price and is a fashion material due to the successful use in chal...

Optimization of ceramic shells for contact with reactive alloys

Optimization of ceramic Shells for Contact with Reactive alloys

Conversão directa e indirecta de modelos obtidos por prototipagem rápida em peç...

Design of glass artifacts through rapid prototyping and rapid tooling

The actual competition environment characterized by fast variations and consumer's sharp necessity in aesthetic satisfaction demands a constant adaptation of the companies, at the development and production levels. The production of decorating glass parts by thermoforming, with three-dimensional shapes, demands expensive moulds. The complexity associated to the manufacture of these moulds by traditional methods...

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...

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...

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...

Metallic prototypes for the pressure die casting industry

Very useful engineering models for product development can be rapidly available using Rapid Prototyping technologies. A diversity of industrial sectors can benefit from the use of these technologies, through speed improvement in the product development phase and consequently minimising the time to market. Rapid Prototyping technologies also allow the direct or indirect production of metallic prototypes to be us...