scholarly journals Relevansi Kurikulum CAD SMK Bidang Keahlian Teknik Pemesinan dengan Kebutuhan Dunia Usaha dan Industri

2020 ◽  
Vol 5 (1) ◽  
pp. 51-56
Author(s):  
Realto Bagyo ◽  
Yatin Ngadiyono
Keyword(s):  
Sheet Metal ◽  
Plate Thickness ◽  
Descriptive Study ◽  
Cnc Machining ◽  
Vocational High School ◽  
Work World ◽  
Cad Cam ◽  
Industry Needs ◽  
Cam Software ◽  
Special Region

This research aims to determinate the relevance of CAD curriculum in machining expertise of Vocational High School (SMK) to the work world and industry needs in the Special Region of Yogyakarta and quantify the level of relevance. This research also aims to study the competencies required in the industry which are not accommodated in The SMK 2013 Ccurriculum for machining expertise. The methods for this research is a descriptive study with a quantitative approach. The results showed that CAD competencies in the 2013 SMK Curriculum are relevant to the competencies needed by the industry. The level of relevance of the curriculum to the industry needs is 81.67%, or categorized as relevant. The CAD competencies in the 2013 Curriculum are all relevant and needed for the industry, but there are some competencies that have not been accommodated, namely 3D sheet metal modelling, 3D patterns, 2D sheet metal drawings, CAD drawing for CNC machining, Post processing into CAD/CAM software, plate thickness selection, and the use of bending and roll features.Tujuan penelitian ini ditujukan untuk mengetahui relevansi kurikulum CAD SMK bidang keahlian teknik pemesinan dengan kompetensi yang dibutuhkan oleh Dunia Usaha dan Industri (DUDI) di Daerah Istimewa Yogyakarta, mengetahui seberapa besar tingkat relevansi antara kurikulum CAD SMK dengan kebutuhan DUDI dan mengetahui kompetensi yang dibutuhkan di industri namun belum terdapat dalam kurikulum 2013 teknik pemesinan SMK. Metode penelitian ini adalah penelitian deskriptif dengan pendekatan kuantitatif. Hasil penelitian menunjukkan kompetensi CAD dalam  Kurikulum 2013 SMK relevan dengan kompetensi yang dibutuhkan oleh industri. Besar tingkat relevansi kurikulum CAD SMK dengan kebutuhan industri sebesar 81,67% atau termasuk dalam kategori relevan. Seluruh kompetensi CAD dalam Kurikulum 2013 SMK dibutuhkan oleh industri, namun terdapat beberapa kompetensi yang perlu ditambahkan yaitu Membuat gambar 3D sheet metal, membuat pattern 3D, Membuat gambar 2D sheet metal, memahami proses gambar untuk CNC, dapat mengimport file ke dalam program MasterCAM, Menetapkan ketebalan plat, dan Penggunaan fungsi bending dan roll.

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 CNC Machining Of The Complex Copper Electrodes

2015 ◽  
Vol 66 (1) ◽  
pp. 153-158 ◽  
Author(s):  
Ioan Alexandru Popan ◽  
Nicolae Balc ◽  
Alina Popan
Keyword(s):  
Dimensional Accuracy ◽  
Cnc Machining ◽  
Machining Process ◽  
Optimal Process ◽  
Copper Electrodes ◽  
Good Surface ◽  
Complex Shapes ◽  
Cad Cam ◽  
Complex Copper ◽  
Cam Software

Abstract This paper presents the machining process of the complex copper electrodes. Machining of the complex shapes in copper is difficult because this material is soft and sticky. This research presents the main steps for processing those copper electrodes at a high dimensional accuracy and a good surface quality. Special tooling solutions are required for this machining process and optimal process parameters have been found for the accurate CNC equipment, using smart CAD/CAM software.

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.

Adaptive spiral tool path generation for computer numerical control machining using point cloud

2021 ◽  
pp. 095440622199007
Author(s):  
Mandeep Dhanda ◽  
Aman Kukreja ◽  
SS Pande
Keyword(s):  
Tool Path ◽  
Cnc Machining ◽  
Numerical Control ◽  
Numerical Control Machining ◽  
Form Errors ◽  
Spiral Tool Path ◽  
Novel Method ◽  
Mesh Grid ◽  
Cloud Of Points ◽  
Cam Software

This paper reports a novel method to generate adaptive spiral tool path for the CNC machining of complex sculptured surface represented in the form of cloud of points without the need for surface fitting. The algorithm initially uses uniform 2 D circular mesh-grid to compute the cutter location (CL) points by applying the tool inverse offset method (IOM). These CL points are refined adaptively till the surface form errors converge below the prescribed tolerance limits in both circumferential and radial directions. They are further refined to eliminate the redundancy in machining and generate optimum region wise tool path to minimize the tool lifts. The NC part programs generated by our algorithm were widely tested for different case studies using the commercial CNC simulator as well as by the actual machining trial. Finally, a comparative study was done between our developed system and the commercial CAM software. The results showed that our system is more efficient and robust in terms of the obtained surface quality, productivity, and memory requirement.

Research on Chamfer Software of Complex Parts

2013 ◽  
Vol 631-632 ◽  
pp. 1335-1341
Author(s):  
Shi Yong ◽  
Wen Tao Liu
Keyword(s):  
3D Model ◽  
Tool Path ◽  
Machining Parameters ◽  
Cad Cam ◽  
Programming Software ◽  
A Chain ◽  
Definition Of ◽  
Complex Parts ◽  
Cam Software ◽  
Location Point

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.

Virtual Reality Interface Using PDA for Street View Color Design

2005 ◽  
Vol 277-279 ◽  
pp. 318-323
Author(s):  
Yang Hee Nam
Keyword(s):  
Virtual Reality ◽  
Architectural Design ◽  
Virtual Reality Technology ◽  
Design Problems ◽  
Color Design ◽  
3D Space ◽  
Street View ◽  
Cad Cam ◽  
Realistic View ◽  
Cam Software

Architectural design is one of those areas that have actively employed interactive design tools such as CAD/CAM software. In order to add a realistic view of the design results in the 3D work process, there have been several recent attempts to employ a virtual reality technology that allows architects to explore design in 3D space. However, VR’s weakness is that common interaction tasks, such as navigation and selection, are still not supported conveniently in 3D space. In addition, VR devices are generally unfamiliar to the average person and are too expensive to use. This paper presents a VR framework that makes the design task easily achieved by employing a PDA interface for a VR interaction applied to street-view emotional color design problems.

Craniofacial Model Generation Using CAD/CAM Software

2018 ◽  
pp. 795-803
Author(s):  
Aditi Rawat ◽  
Deepkamal Kaur Gill ◽  
Divya Bajaj ◽  
Mamta Juneja ◽  
Anand Gupta ◽  
...  
Keyword(s):  
Model Generation ◽  
Cad Cam ◽  
Cam Software

Numerical Control Machining of Scroll with Variable Thickness

2014 ◽  
Vol 490-491 ◽  
pp. 288-293
Author(s):  
Tao Liu ◽  
Xia Qin Wang ◽  
Jun Wu ◽  
Yong Wei Wang
Keyword(s):  
Variable Thickness ◽  
Processing Method ◽  
Numerical Control ◽  
Scroll Compressor ◽  
Numerical Control Machining ◽  
Cad Cam ◽  
Programming Process ◽  
Center Track ◽  
Fitting Error ◽  
Cam Software

With the development of scroll technology, the requirements of more efficient and more accurate processing method for scroll compressor parts become more urgent. This paper proposes a method to improve the machining effect of scroll compressor. The approach is based on 3-point arc approximation method which divides combined profile of scroll wrap into subparagraph arcs that can be interpolated on CNC System. This approach simplifies the programming process and improves the curve fitting effect. The results indicate that the fitting error is in the predetermined range, and the interpolation points of cutter center track are significantly less than those based on CAD/CAM software. The method presented in this paper is of significance to the NC machining of novel precise scroll profile.

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