The Analyses of Working Parameters for a 3D Complex Part Manufacturing by CNC Machine

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.

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.


2020 ◽  
pp. 93-101
Author(s):  
V.S. Dyshenko ◽  
◽  
M.I. Minibaev ◽  
M.N. Usacheva ◽  
◽  
...  

Monolithic samples are made of carbon fiber based on fabrics that are cured by infusion. Perforation is carried out on a CNC milling machine after confirmation and on special equipment until confirmation. Samples are cut from the plate at an angle of 4–5°, as the orientation of the holes in real sound-absorbing structures. Samples tested for tensile strength according to GOST 56785–2015. Samples cut from plates made by molding give 25% higher results than samples obtained by processing on a CNC machine.


2011 ◽  
Vol 328-330 ◽  
pp. 1759-1762
Author(s):  
Xing Yu Lai ◽  
Chun Yan Yan ◽  
Bang Yan Ye ◽  
Wei Guang Li

In order to achieve the intelligent control of milling process, an experimental platform is constructed in XK5140 CNC machine tool. The control system is based on the Simulink model of MATLAB and the controller is established by programming S-function. The experiments are performed on steel workpiece with variable depth of cut by controlling milling force. The experimental results show that the intelligent control of the milling process is feasible using this experimental platform. The proposed controller can adaptively adjust the feed rate till achieving a constant cutting force approaching the set point in varied cutting conditions. CNC milling machine can make full use of its manufacturing capacity when processing the parts, thus improving the cutting efficiency and protecting the tool.


Author(s):  
Benjamin Pereira ◽  
Christian Andrew Griffiths ◽  
Benjamin Birch ◽  
Andrew Rees

AbstractThis paper aims to identify the capability of a highly flexible industrial robot modified with a high-speed machine spindle for drilling of aluminum 6061-T6. With a focus on drilling feed rate, spindle speed, and pecking cycle, the hole surface roughness and exit burr heights were investigated using the Taguchi design methodology. A state of the art condition monitoring system was used to identify the vibrations experienced during drilling operation and to establish which robot pose had increased stiffness, and thus the optimum workspace for drilling. When benchmarked against a CNC machine the results show that the CNC was capable of producing the best surface finish and the lowest burr heights. However, the robot system matched and outperformed the CNC in several experiments and there is much scope for further optimization of the process. By identifying the optimum pose for drilling together with the idealized settings, the proposed drilling system is shown to be far more flexible than a CNC milling machine and when considering the optimized drilling of aerospace aluminum this robotic solution has the potential to drastically improve productivity.


2017 ◽  
Vol 11 (1) ◽  
pp. 44-51 ◽  
Author(s):  
Hans-Rudolf Weiss ◽  
Nicos Tournavitis ◽  
Xiaofeng Nan ◽  
Maksym Borysov ◽  
Lothar Paul

Background: High correction bracing is the most effective conservative treatment for patients with scoliosis during growth. Still today braces for the treatment of scoliosis are made by casting patients while computer aided design (CAD) and computer aided manufacturing (CAM) is available with all possibilities to standardize pattern specific brace treatment and improve wearing comfort. Objective: CAD / CAM brace production mainly relies on carving a polyurethane foam model which is the basis for vacuuming a polyethylene (PE) or polypropylene (PP) brace. Purpose of this short communication is to describe the workflow currently used and to outline future requirements with respect to 3D printing technology. Method: Description of the steps of virtual brace adjustment as available today are content of this paper as well as an outline of the great potential there is for the future 3D printing technology. Results: For 3D printing of scoliosis braces it is necessary to establish easy to use software plug-ins in order to allow adding 3D printing technology to the current workflow of virtual CAD / CAM brace adjustment. Textures and structures can be added to the brace models at certain well defined locations offering the potential of more wearing comfort without losing in-brace correction. Conclusions: Advances have to be made in the field of CAD / CAM software tools with respect to design and generation of individually structured brace models based on currently well established and standardized scoliosis brace libraries.


2018 ◽  
Vol 26 (5) ◽  
pp. 36-47
Author(s):  
Ahmed A. Ebraheem

Because of difficulty of Reconstructing 3D surface from the 2D captured images in terms of getting a higher resolution compared with the original surface so it has been adopted treatment of surface images after reconstructing the surface by of assembling all 2D im- ages and apply various filters to get the surface closest to the original surface of the sample under test. Various ways have been applied such as Laplacian and Median. It has been found that Median operator gave the best treatment to the surface where it was adopted to find the toolpath through the surface points for the purpose of machining using a CNC milling machine.  


Author(s):  
Prateek Sahay ◽  
Janet Dong ◽  
Caleb Bisig ◽  
Ou Ma

Abstract The work discussed in this paper is a part of the project to build an automated robotic cell for removing two tabs from a Jet Engine Turbine Blade using a 3-axis CNC milling machine and for laser marking several lines of part information onto the blade body. The two tabs are extensions of the Turbine Blade, in which the necessary part information is ingrained. The part information is used as the identification of the Turbine Blade throughout its entire manufacturing process. The two tabs also serve as anchors during the milling of the body of the Turbine Blade in a 5-axis CNC machine. Once the milling of the blade body is done, the two tabs will be removed from the blade body. Removing tabs is currently being done in the same 5-axis CNC milling machine. It is expensive and wastes 5-axis machine time. Therefore, using a 3-axis CNC milling machine to remove tabs is proposed with a robot to tend machines to be cost-effective. Due to the complexity of the Turbine Blade having 3-D wavy geometry, it adds challenges in undertaking any operations on the blade with automation. As automation is becoming relevant in many industries including the Aerospace, the method discussed in this paper can be used as a general guideline for carrying out material handling tasks with a thin part of wavy geometry by using a collaborative robot.


Author(s):  
Arunava Biswas ◽  
Gary L. Kinzel

Abstract A rapid design prototyping laboratory has been established at the Ohio State University. The purpose of the laboratory was to effectively bridge the gap between industry expectations and the students’ hands-on experience with the CAD/CAM process and develop and teach integrated CAD/CAM courses utilizing the facilities. The laboratory contains CNC milling machines, CNC lathes, an injection molding machine, and workstations running CAD/CAM software. The facility has been well integrated into the teaching program. This paper discusses the background and establishment, operation and utilization of this laboratory.


Author(s):  
Hung Pham Van ◽  
Duong Nguyen Thuy

The automatic tool changer (ATC) in computerized numerical control (CNC) milling machine often uses pneumatic dynamic sources. Friction in the pneumatic cylinder affects the ATC’s stopping position; this friction depends on many factors, including the air environment’s relative humidity and temperature. This paper presents the results of research on the effects of relative humidity (RH) and air temperature (T) on the stopping position of an ATC using a pneumatic cylinder. Studies were conducted at temperatures of [Formula: see text]C, [Formula: see text]C and [Formula: see text]C and relative humidity values of 51%, 75% and 99% for different speeds of the pneumatic cylinder (30, 50 and 100 mm/s). The results show that when the humidity increases from 51% to 99% and the temperature increases from [Formula: see text]C to [Formula: see text]C, the friction force decreases. The friction force is related to the relative humidity and temperature of the air. Thus, the deviation of the ATC’s stopping position depends on the relative humidity and temperature of the area under investigation.


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