Towards 3-D Shape Restructuring for Rapid Prototyping of Joining Interface System

2014 ◽  
Author(s):  
S.-K. Lee ◽  
C. Georgoulas ◽  
T. Bock
Keyword(s):  
Rapid Prototyping ◽  
Interface System

A Simplified Integration System for the Fabrication of Total Surface Bearing Transtibial Socket by Employing Rapid Prototyping Technology

2011 ◽  
Author(s):  
L. H. Hsu ◽  
M. J. Tzeng ◽  
J. T. Chen
Keyword(s):  
Rapid Prototyping ◽  
Design Process ◽  
Unsaturated Polyester ◽  
Cad Systems ◽  
Prosthetic Socket ◽  
Service Bureau ◽  
Interface System ◽  
Complex Procedure ◽  
Alternative Means

This project is to validate the preliminary result of rapid prototyping (RP)-based transtibial socket that was reinforced by wrapping a layer of unsaturated polyester resin. By employing contemporary technologies including a scanner, computer-aided engineering systems, a rapid prototyping machine, together with the expertise of a prosthetist, RP-based prosthetic sockets with a comfortable fit to volunteer amputees can be fabricated. However, the expensive cost and complex procedure of using current commercial scanners and CAD systems will be barriers experienced by clinical professionals. As the existing service bureau infrastructure and cheaper RP technology are easily accessed, fabrication and technology cost barriers will be reduced. The remaining problems include the availability of easily-used CAD systems for designing prosthetic sockets, simple scanner and stump duplicating tool. This study therefore focuses on the integration of simplified systems including a vacuum forming tool, compact scanner and an interface system for designing prosthetic sockets. Although the type of PTB (patella tendon bearing) transtibial socket is widely adopted in plaster-based manual process, TSB (total surface bearing) sockets are more acceptable by amputees. Since the concept of TSB socket should obtain the stump mold of an amputee under appropriate pressure by using a specific stump forming tool, editing complex surfaces can be avoided when using a TSB-based stump model to design a socket. The quality of socket fit is expected to improve by a simplified design process in which an interface system based on grid-editing algorithms is utilized. In addition, cheaper RP technology, such as 3-D printing or droplet binding process, can be alternative means to fabricate RP-based prosthetic sockets. By combining TSB stump mold, simplified design process and a cheaper RP machine, this study proposes a simplified integrating system to manufacture RP stump mold. Using this RP stump mold together with the traditional lamination method of infiltrating resin into cotton layers, the RP-based transtibial sockets will then be fabricated easily. The expected result will demonstrate the feasibility of employing cheaper emerging technologies to assist an unskilled prosthetist who will be able to produce good quality of prosthetic socket.

Medical rapid prototyping (MRP) in adult- and paediatric cardiac surgery

2011 ◽  
Vol 59 (S 01) ◽  
Author(s):  
R Sodian ◽  
S Haeberle ◽  
S Weber ◽  
T Lueth ◽  
A Beiras-Fernandez ◽  
...  
Keyword(s):  
Cardiac Surgery ◽  
Rapid Prototyping ◽  
Paediatric Cardiac Surgery

USE OF RAPID PROTOTYPING IN PRODUCT DEVELOPMENT: A Case Study for Tool Manufacturing for Aeronautical Use

2017 ◽  
Vol 8 (5) ◽  
pp. 1-17
Author(s):  
Aires Jorge Alberto Sandi ◽  
◽  
Giacaglia Giorgio Eugenio Oscare ◽  
Keyword(s):  
Product Development ◽  
Rapid Prototyping

APPLYING THE ISF TECHNOLOGY TO PRODUCE THE CAR PART MODELS

2010 ◽  
Vol 13 (4) ◽  
pp. 91-98
Author(s):  
Tuan Dinh Phan ◽  
Binh Thien Nguyen ◽  
Dien Khanh Le ◽  
Phuong Hoang Pham
Keyword(s):  
Rapid Prototyping ◽  
Incremental Sheet Forming ◽  
Cad Model ◽  
Post Processing ◽  
Technological Parameters ◽  
Batch Production ◽  
Complex Products ◽  
3D Cad ◽  
Real Size ◽  
Single Batch

The paper presents an application the research results previously done by group on the influence of technological parameters to the deformation angle and finish surface quality in order to choose technology parameters for the incremental sheet forming (ISF) process to produce products for the purpose of rapid prototyping or single-batch production, including all steps from design and process 3D CAD model, calculate and select the technological parameters, setting up manufacturing and the stage of post-processing. The samples formed successfully showed high applicability of this technology to practical work, the complex products with the real size can be produced in industries: automotive, motorcycle, civil...

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