Teaching Experience for the Virtualization of Machine Tools and Simulation of Manufacturing Operations

2016 ◽  
Vol 853 ◽  
pp. 79-84 ◽  
Author(s):  
D. Morales-Palma ◽  
Andrés Jesús Martínez-Donaire ◽  
Gabriel Centeno ◽  
C. Vallellano
Keyword(s):  
Machine Tools ◽  
Engineering Students ◽  
Incremental Forming ◽  
Teaching Experience ◽  
Manufacturing Processes ◽  
Nc Code ◽  
Manufacturing Operations ◽  
Cad Cam ◽  
Digital Documentation ◽  
Cam Software

This work aims to generate the digital documentation related to a number of manufacturing processes on different machine tools. The project is developed with the contribution of engineering students doing their final thesis within this field. Different machine tools and machining and incremental forming processes have been virtualized by using the CAD/CAM software CATIA V5. Some of the modeled parts were finally manufactured after checking and post-processing the NC code. Digital documentation is developed on different formats (e.g. photographs, videos, images and simulations) in order to be used as a teaching complement.

Teaching and Learning of Manufacturing Engineering through Virtualization of Processes on CNC Machines

2017 ◽  
Vol 903 ◽  
pp. 112-119
Author(s):  
D. Morales-Palma ◽  
Andrés Jesús Martinez-Donaire ◽  
Gabriel Centeno ◽  
M. Borrego ◽  
Carpóforo Vallellano
Keyword(s):  
Machine Tools ◽  
Teaching And Learning ◽  
Engineering Students ◽  
Manufacturing Processes ◽  
Cnc Machines ◽  
Master Thesis ◽  
Degree Of Acceptance ◽  
Digital Documentation ◽  
Supplementary Material ◽  
High Degree

This paper presents the latest developments in a digital documentation project related to manufacturing processes on machine tools. The project is supported by engineering students doing their bachelor/master thesis within this field. Different virtual models have been developed by using CATIA V5, such as conventional and CNC machines, several parts to be manufactured, and different manufacturing processes such as machining, incremental sheet forming and 3D printing. Some of the modelled parts have been manufactured. The developed digital documentation is used as supplementary material in subjects of bachelor and master degree in Industrial/Aerospace Engineering, with a high degree of acceptance by students.

scholarly journals Tutorials for Integrating CAD/CAM in Engineering Curricula

2018 ◽  
Vol 8 (3) ◽  
pp. 151 ◽  
Author(s):  
AMM Ullah ◽  
Khalifa Harib
Keyword(s):  
Machine Tools ◽  
Computer Aided Design ◽  
Engineering Students ◽  
Tool Path ◽  
Sustainable Manufacturing ◽  
Natural Extension ◽  
Real Life ◽  
System Component ◽  
Engineering Practice ◽  
Cad Cam

This article addresses the issue of educating engineering students with the knowledge and skills of Computer-Aided Design and Manufacturing (CAD/CAM). In particular, three carefully designed tutorials—cutting tool offsetting, tool-path generation for freeform surfaces, and the integration of advanced machine tools (e.g., hexapod-based machine tools) with solid modeling—are described. The tutorials help students gain an in-depth understanding of how the CAD/CAM-relevant hardware devices and software packages work in real-life settings. At the same time, the tutorials help students achieve the following educational outcomes: (1) an ability to apply the knowledge of mathematics, science, and engineering; (2) an ability to design a system, component, or process to meet the desired needs, (3) an ability to identify, formulate, and solve engineering problems; and (4) an ability to use the techniques, skills, and modern engineering tools that are necessary for engineering practice. The tutorials can be modified for incorporating other contemporary issues (e.g., additive manufacturing, reverse engineering, and sustainable manufacturing), which can be delved into as a natural extension of this study.

The Development of an APT Program Interpreter for 5-Axis Machining

2012 ◽  
Vol 482-484 ◽  
pp. 2247-2252 ◽  
Author(s):  
Hsin Yu Cheng ◽  
Jo Peng Tsai ◽  
Yung Chou Kao
Keyword(s):  
Research Result ◽  
Value Added ◽  
Working Process ◽  
Nc Code ◽  
Cad Cam ◽  
Cutter Orientation ◽  
Advanced Machining ◽  
Five Axis ◽  
Cam Software

As there are various machine configuration and frequent changes of cutter orientation in 5-axis machining, the standard NC codes are not inter-exchangeable among machines. This phenomenon induces a lot of cutting difficulties and machining problems such as the inconvenient working process for operators and very low cutting efficiency. At present, some advanced machine controllers already can accept the APT code besides NC code to increase the cutting flexibility. They also offer some advanced machining functions such as tool center point control and spatial compensations of tool, etc. By way of APT interpreting, the common controller can also implement these advanced functions. Besides, CAD/CAM software also supports APT post-processor to generate NC code for different machine configurations. This means the application of ATP program has played an important role in five-axis machining. However, although CAD/CAM software supports the interpretation of APT program as a core key technology of five-axis machining, the manufacturers of controller with advanced functions are unwilling to open their system. Up to now, there has been few related research papers published on this topic. In this paper, we proposed an APT interpretation method for five-axis machining. This method includes seven functional modules and related implementing procedures. A case study has been adopted to demonstrate the feasibility of the proposed method. The research result could be adopted as a reference to develop the value-added technology in 5-axis machine tool application for academy and industry.

Analysis of the Incremental Forming of Titanium F67 Grade 2 Sheet

2013 ◽  
Vol 554-557 ◽  
pp. 195-203 ◽  
Author(s):  
Anderson Daleffe ◽  
Lirio Schaeffer ◽  
Daniel Fritzen ◽  
Jovani Castelan
Keyword(s):  
Incremental Forming ◽  
Roughness Parameter ◽  
Cnc Machining ◽  
Forming Process ◽  
Machining Center ◽  
Cad Cam ◽  
Cp Ti ◽  
Cam Software ◽  
Sheet Deformation ◽  
Cnc Machining Center

Analysis of a formed metal sheet shows the data of the incremental forming process. Variation in sheet deformation results from the process and shows how forming occurred. Another important result is the surface roughness of the sheet, which reports the parameters of the process, machine and tool used. Incremental forming of the titanium CP-Ti grade 2 sheet was performed in the SPIF modality – forming without a point of support, in order to look at the thickness deformations. SPIF incremental forming is characterized as forming that does not use points of support, and therefore simple tooling is used in the process. The following resources were used to perform the practical tests: CAD/CAM software, CNC machining center, incremental die, incremental forming tool and a sheet press device. The results obtained were the finish of the formed surface, measured by the roughness parameter RZ, and the measurement of the true strains ( ) and thickness (s1). Practical tests showed that the limit wall angle ( ), for the CP Ti grade 2 sheet, 0.5 mm thick, is 47º.

scholarly journals A pilot study to assess manufacturing processes using selected point measures of vibroacoustic signals generated on a multitasking machine

2020 ◽  
Author(s):  
Mariusz Deja ◽  
Roksana Licow
Keyword(s):  
Machine Tools ◽  
Manufacturing Systems ◽  
Cutting Parameters ◽  
Measuring System ◽  
Manufacturing Processes ◽  
Shape Accuracy ◽  
Cad Cam ◽  
Measurement Methodology ◽  
Optimal Efficiency ◽  
Vibroacoustic Signals

Abstract The article presents the method for the evaluation of selected manufacturing processes using the analysis of vibration and sound signals. This method is based on the use of sensors installed outside the machining zone, allowing to be used quickly and reliably in real production conditions. The article contains a developed measurement methodology based on the specific location of microphones and vibration transducers mounted on the tested object, in this case on a four-axis CNC ST20Y Haas lathe. A mobile phone was integrated into the measuring system and used to control the measurement process. The results from the analysis of vibration and sound signals recorded during different machining operations are presented. They refer to selected working conditions of a machine tool depending on switching the coolant supply on or off and different machine loads caused by various technological processing as well as the various speed of the positioning movements. The analysis was carried out using selected point measures describing the vibroacoustic signals. The synthesis conducted on the basis of results from the experiments indicates the validity of using vibration and acoustic signals, recorded outside the machining area, to evaluate material removal processes that are diverse in terms of kinematics and processing conditions. It indicates the possibility of using proposed point measures of vibroacoustic signals in the diagnostic aspects of the machine tools to achieve high dimension and shape accuracy and to evaluate the condition of the technological devices in terms of their optimal efficiency. Presented methodology can be used as a supporting tool in the CAD/CAM software for a better selection of appropriate cutting parameters and for a wireless control of manufacturing systems consisting of several machine tools.

Parametric Programming of CNC Machine Tools

2013 ◽  
Vol 282 ◽  
pp. 203-210 ◽  
Author(s):  
Tadeusz Nieszporek ◽  
Andrzej Piotrowski
Keyword(s):  
Machine Tools ◽  
Parametric Programming ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Special Programs ◽  
Cad Cam ◽  
Software Programs ◽  
High Level ◽  
Special Cad ◽  
Cam Software

CNC machine tools are increasingly often used in industry, and the development of the methods of their programming is also proceeding. Modern multipurpose multi-axial machine tools are programmed using special CAD/CAM software programs. Universal special programs for controlling CNC machine tools can, however, be generated in programs written in high-level languages. An example can be the machining of gears on universal CNC machine tools using versatile machining tools.

Research on the Automatic Programming System for Industrial Robots in Free-Form Surfaces Polishing

2010 ◽  
Vol 455 ◽  
pp. 181-185 ◽  
Author(s):  
Jian Ming Zhan ◽  
Q.T. Liu ◽  
Gang Ming Wang
Keyword(s):  
Industrial Robots ◽  
Degree Of Freedom ◽  
Free Form ◽  
Programming System ◽  
Automatic Programming ◽  
Nc Code ◽  
Cad Cam ◽  
Programming Software ◽  
Free Form Surfaces ◽  
Cam Software

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.

Application of an Accuracy Enhancement Module for Precision Machine Tools by Spatial Error Compensation

2008 ◽  
Author(s):  
Fu-Chuan Hsu ◽  
Cheng-Chang Chiu ◽  
Yu-Ting Lyu ◽  
Wen-Long Chang ◽  
Junz J.-J. Wang ◽  
...  
Keyword(s):  
Error Compensation ◽  
Machine Tools ◽  
Numerical Control ◽  
Cnc Machine ◽  
Spatial Error ◽  
Vector Method ◽  
Nc Code ◽  
Cad Cam ◽  
Straightness Error ◽  
Cnc Controller

A PC-based precision promotion module named “Precimatics” is presented in this study, which uses a spatial error compensation algorithm to modify the G/M code of coordinates of a CNC machine tool. The spatial errors of three axes machine tools were measured by two kinds of laser interferometers (Renishaw Inc. & Optodyne Inc.) According to the American standard (ASME B 5.54) and the laser vector method with sequential step diagonal path (LDDM™), the spatial errors of machine tools, such as linear position error, horizontal straightness error, vertical straightness error, and squareness error, were obtained without time consuming. A spatial error map of machine tools was created and embedded into the “Precimatics” for error compensation. The compensated results were simulated and verified by the coordinates of numerical control (NC) code. Integrating a CAD/CAM system with the “Precimatics”, the position accuracy of micro/meso machine tools (mMTs) can be improved by spatial error compensation without changing the configuration of CNC controller.

B/S Structure-Based Remote Management System in CNC

2015 ◽  
Vol 743 ◽  
pp. 180-183
Author(s):  
L.L. Yan ◽  
Y.R. Chen ◽  
W.J. Ren ◽  
Yuan Yu
Keyword(s):  
Management System ◽  
Cnc Machining ◽  
Nc Code ◽  
Remote Transmission ◽  
Remote Management ◽  
Dynamic Web ◽  
Java Server Pages ◽  
Cad Cam ◽  
Database Technology ◽  
Cam Software

A multi-user remote transmission of CNC machining management system was developed based on B/S structure, which combines network management model with CNC machining technologies and replaces the traditional file-copy format. This system not only provides convenience for users to use CNC equipment but also greatly improves efficiency and safety. In this project, a JSP (Java Server Pages) dynamic web site was developed in the MyEclipse environment, which can carry out many functions, including management of users’ information and documents taking advantage of database technology, transmitting and operating NC code and source files which CAD/CAM software generated. This is an attempt of centralized CAD/CAM network manufacturing.

Methodology for Teaching the Material Removal Processes by Using CAD/CAM Software: Turning Processes

2009 ◽  
Vol 625 ◽  
pp. 67-75 ◽  
Author(s):  
C.J. Luis-Pérez ◽  
Ignacio Puertas ◽  
C. Remirez ◽  
Javier León ◽  
Rodrigo Luri
Keyword(s):  
Material Removal ◽  
Public University ◽  
Manufacturing Processes ◽  
The Public ◽  
First Case ◽  
Computer Aided ◽  
Cad Cam ◽  
Removal Processes ◽  
Cam Software

As is well-known, teaching of the computer-aided technologies is gaining more and more importance in the field of Manufacturing Processes Engineering. One such example is the growing tendency to employ computers in the simulation of material removal processes (CAM). In this study, a methodology proposed by the Manufacturing Processes Engineering Section in order to teach material removal processes is shown. This methodology is put into practice by employing one CAM software such as Surfcam® and is applied to the teaching subjects given by the previously-mentioned Section belonging to the Public University of Navarre. Due to the length of the practice manual developed for this purpose, which covers turning, milling and EDM processes, the present work has only been focused on the use of Surfcam® in the first case.

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