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Metal Printing Process - Challenges and Potentials

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A new method of rapid manufacturing called the Metal Printing Process (MPP) is under development at SINTEF in Norway. This method is using xerography and powders of metals and ceramics to build objects layer by layer. Each layer is transferred from the photoreceptor onto a punch which is used to press the new layer onto the growing object in a die. The compressed powder can subsequently be sintered into a functional object.

In principle there is no limit on the number of materials in each layer, but the different materials do have to have some properties in common, i.e. about the same melting temperature, size and electric properties. By making patterns in each layer, and also varying the layers in the vertical direction, objects with graded materials can be made.

To build overhangs a support powder must be used. This powder must have physical properties comparable to the building powder, but needs to behave differently when the part is sintered. This paper is presenting the process, based on the prototype built at SINTEF.

Document Type: Research Article

Publication date: 2005-01-01

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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