Reverse engineering and its applications

In the industrial field, often encountered the demand to build its three-dimensional digital model under the model or in kind. This use of reverse engineering, which refers to a means of measuring the physical model or measurement that digital sampling, and then under the three-dimensional geometric measurement data through the physical reconstruction of Modeling The CAD digital model to achieve product design and manufacturing process.

The practical application for Reverse engineering in the industrial manufacturing area includes the following:
a) the design of new parts, mainly for imitation or modified product design;
b) have been copying and imitation parts, and reproduce the original product design, complex products such as imitation;
c) damaged or worn parts of the reduction, in order to repair or re-used;
d) product testing, testing of products such as the deformation, welding quality testing, so as to the urgency of processed products with 3-D digital model of the error for analysis.

In manufacturing, reverse engineering has become the digestion and absorption of new technologies and secondary development of one of the important building Drive. Improved design as an important tool, which effectively accelerated the response to market new products faster. At the same time, reverse engineering for the rapid prototyping provided a good technical support. The manufacturing sector to become an important and simple transmission of information received from one of the ways.

In addition, Reverse engineering has better applications in arts and culture, the medical field, including the wooden model or clay sculpture art aesthetic design, digital artifacts and digital museums, such as virtual surgery.

The structural system of Reverse engineering

Reverse engineering system mainly consists of three parts: product physical geometry of the figures, CAD model reconstruction, products or die manufacturing. Reverse engineering technology is the key According to the collection, data processing and model of reconstruction.

(1) Data Collection
Data Acquisition is the first step in reverse engineering, its direct impact on the proper method of whether or not to be accurate, rapid and complete physical access to the two-dimensional, three-dimensional geometry data, affect the reconstruction of CAD solid model of quality, and ultimately affect the product Quality.
(2) Data processing
For access to a series of data points in the CAD model pre-redevelopment, the need for format conversion, noise filtering, smoothing, alignment, merging, the probe radius compensation and interpolation, and so on-point processing.
(3) Model reconstruction
Keep the dealt measurement data into CAD system, based on the front curve, surface to build the prototype of the CAD model.

Reverse Engineering Research and Application

Basic research status quo
In reverse engineering of basic research, at home and abroad have done a lot of work, mainly concentrated in the areas of the CAGD surface reconstruction and entities reconstruction algorithm. The international market has a lot of business in the reverse engineering software systems. Domestic basic research of reverse engineering is to start many units, such as Zhejiang University, Huazhong University of Science & Technology, Xi'an Traffic University, Northwestern University, etc, and has made some achievements.