Research on Chamfer Software of Complex Parts

2013 ◽  
Vol 631-632 ◽  
pp. 1335-1341
Author(s):  
Shi Yong ◽  
Wen Tao Liu

In order to meet the needs of enterprises for chamfering complex parts, based on the customization of commercial CAD/CAM software, chamfer programming software is developed. According to user’s machining demands for a part, a chain of edges of a part is extracted from its 3D model. With preprocessing of the chain of edges, the continuity of the chain is estimated, and the start and end point of those edges are automatic obtained. Furthermore, with human-machine dialogue, machining parameters is set by users. By definition of the primary and secondary surfaces of the chain of edges, and interpolation of the edges, the positions of cutter location point and postures of cutter are calculated. Finally the interference of tool path is checked, and tool path is simulated. The software solves the programming problem of chamfering complex parts.

Author(s):  
Maho Kumanotani ◽  
Hitoshi Kusino ◽  
Keiichi Nakamoto

Abstract Recently, the demand of complex shape parts has increased in the aircraft and medical industries. In these parts machining, the displacement and vibration of workpiece that strongly affect the machining efficiency are induced due to the heavy change of the unmachined workpiece shape and stiffness during rough machining. However, it is difficult to automatically determine machining parameters of operation planning by using a commercial CAM software because there is a large number of combinations. Therefore, in order to improve the efficiency of complex parts machining, the authors proposed a determination method of workpiece shapes during rough machining based on topology optimization relevant to maximizing static stiffness. On the other hand, tool paths that directly affect the workpiece stiffness are not generated automatically to create the calculated workpiece shapes in the previous study. From these reasons, this study proposes a generation method of tool paths by using design variables obtained through the calculation of topology optimization. The tool paths are simply generated based on design variables and enables to ensure the workpiece stiffness during rough machining because design variables are strongly related to the objective function. By conducting a machining experiment assuming complex parts machining, it is confirmed that the proposed method has a potential to realize efficient rough machining.


Author(s):  
Zhenlong Wang ◽  
Yinghuai Dong

Micro power system is becoming more and more important for micro- and nano-scale system. The fast development of MEMS (Micro Electromechanical Systems) has strongly enhanced the application of new harder work materials. The fabrication of metallic 3D microstructures has been one of the most attractive topics of micro machining. Currently the basic materials of Micro-turbine Engineering were nonmetal materials such as SiC, most of them are 2D or quasi-3D structures. This paper focuses on the manufacturing process on micro compressor prototype by micro-EDM milling. The micro compressor prototype contains the rotor disk and stator disk. A simple tool path generation by CAD/CAM software and a general electrode wear compensation strategy is presented. The micro compressor prototype with rotor and stator disks was successfully fabricated by using this strategy, and the materials of workpieces are nickel alloy GH4169 and titanium alloy TC4.


2013 ◽  
Vol 702 ◽  
pp. 259-262 ◽  
Author(s):  
Cezary Grabowik ◽  
Witold Janik

Currently industrial needs exceed traditional design approach solutions. To satisfy that need designer have to deal with mutually exclusive restrictions. The solution to this problemis to maintain these restrictions with proper methodthat guarantees right result. The concrete casting matrixes are not only transits beauty and art but they have also important technical sense in final product. The master model represents the final product a concrete sidewalk brick which have specified form of the top surface. This special structure of the top surface helps drain water off the brick in order to maintain proper griping properties of it after it rains. As soon as the master model wasscannedit was necessary to change outer border line of 3D model because themaster model appeared to be a little bit bigger than the original one. Finally the 3D model it is the outer border line and its geometry were modified in order to keep the original model functionality. All modifications were done with application of reverse engineering and CAD/CAM software.


2009 ◽  
Vol 69-70 ◽  
pp. 433-436
Author(s):  
X.J. Wang ◽  
S.L. Li ◽  
Can Zhao

Using the typical CAD/CAM software UG, an aero-engine integral impeller was studied in this paper, including 3-D modeling, tool-path planning and simulation. A regular impeller was machined with a 5-axis machine tool, which showed the process plan was feasible.


2013 ◽  
Vol 753-755 ◽  
pp. 1270-1273
Author(s):  
Quan Liang ◽  
Dong Hai Su ◽  
Jie Wang ◽  
Ye Mu Wang

An automatically correction algorithm was promoted to solve the problem that most of the commercial CAD/CAM software can only detect the collision, but can not generate collision-free tool path on cutting path planning. The algorithm uses the configuration space theory to map the boundary into the 2D configuration space, and then the 3D space interference collision problem was transformed into 2D space. Finally, the algorithm was used to generate cutting path of a closed impellers runner. From the result of cutting path planning, the proposed algorithm was able to avoid the interference in the process of tool path planning about closed impeller.


2015 ◽  
Vol 808 ◽  
pp. 286-291 ◽  
Author(s):  
Vasile Adrian Ceclan ◽  
Ioan Alexandru Popan ◽  
Sorin Dumitru Grozav ◽  
Cristina Ștefana Miron-Borzan ◽  
Ivan Kuric

In this paper I want to presents the process for manufacturing one complex parts made by aluminum alloy. For manufacturing this complex part I used CAD/CAM software, CNC milling machine and same special tools. Starting from the 3D model made in SolidWorks was manufactured this complex part, using new strategies for CNC milling. To be made this chain of pieces it is necessary to use smart software for this process.


2014 ◽  
Vol 611-612 ◽  
pp. 1694-1701
Author(s):  
Catalina Gutierrez ◽  
Philippe Mangin ◽  
Laurent Langlois ◽  
Régis Bigot

Till now, the definition of cross wedge rolling dies requires know-how and important expertise from the designers. A decision-making methodology is being developed to provide sequential and logical steps to draw easier and faster the tool geometry. This methodology is based on designing rules found in literature that link the geometrical parameters of the desired rolled part and the geometrical parameters of the tool. Nevertheless, in the literature, the rules are not always consistent because the admissible domain for a parameter can differ from one author to another. In order to take into account this variability, a stability index is associated to each rule and to the designed tool. The methodology allows updating of the existing rules and the implementation of new rules. The set of parameters defining the geometry of the tool can be exported in the CAD/CAM software and FEM software. A case-study is presented to illustrate and validate the methodology.


Author(s):  
Ruth Jill Urbanic ◽  
Bob Hedrick

Additive manufacturing layer-based solution approaches have been applied for several technologies and systems. Process planning solutions are being developed for planar applications, but rotary applications can benefit from an additive manufacturing ‘rotary layering’ strategy as well. There are systems that have been developed to coat pipes and other rotationally symmetric components, and there are multi-axis applications that would require rotary-like tool paths. Developing and exploring additive rotary tool path applications is the focus of this research. These initial solutions will be applicable for direct energy deposition and thermal spraying models. AM rotary proof of concept tool paths are developed using a commercial CAD/CAM software, and a software development kit (SDK). Selected case studies are presented, with varying levels of geometric complexity.


2012 ◽  
Vol 591-593 ◽  
pp. 77-79
Author(s):  
Ai Hua Chen ◽  
Ming Xia ◽  
Yong Hui Tang ◽  
Ying Zhang

With the help of IGES standard file which was the exchange specification of initial graphics, different CAD system could change the data of product by neutral file’s format conversing. The automatic generation of 3D-Model curve surface in the MCNP input file was realized by using VC++ language.This method has solved the problem of the complication of MCNP geometric modeling process and the 3D-Model input problem in the MCNP. The input of MCNP was transferred the application problem of CAD/CAM software. The data and figure of varies software could be shared and converted. The work of design could be simple, the process of design could be speeded up and the cycle of design was shorted. Work efficiency and practicability were improved. If precision was controlled in 3D-Model, the result could be expected by contrast.


2010 ◽  
Vol 455 ◽  
pp. 181-185 ◽  
Author(s):  
Jian Ming Zhan ◽  
Q.T. Liu ◽  
Gang Ming Wang

Because of the industrial robot’s advantages and characteristics of degree of freedom, it is broadly applied in mold and die of curved surfaces polishing. But its excessive degree of freedom also brings great difficulties in programming for there is CAD/CAM software can do it well. By analyzing the ISO NC code and robot’s programming criterion, this paper develops off-line programming software for industrial robots in free-form surfaces polishing.


Sign in / Sign up

Export Citation Format

Share Document