• Title/Summary/Keyword: CAD-CAM

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A Development on the CAD/CAM System for High Efficiency Deep Drawing Transfer Die (고능률 디프 드로잉 트랜스퍼 금형 설계 및 제작을 위한 CAD/CAM 시스템)

  • 박상봉
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 1998.06a
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    • pp.57-64
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    • 1998
  • The purpose of this research is to develop a CAD/CAM system for generation all kind of information such as, total drawing, sub assembly drawing, part drawing, detail drawing, part list, and NC data for machining by CNC lathe, Wire CUT, machining center. Through this study the CAD/CAM System for deep drawing transfer die in mechanical press process has been developed. The developed CAD system can generate the drawing of transfer die in mechanical press. Using these results from CAD system, it can generate the NC data to machine die's elements on the CAD system. This system can reduce design man-hours and human errors. In order to construct the system, it is used to automate the design process using knowledge base system. The developed system is based on the knowledge base system which is involved a lot of expert's technology in the practice field. Using AutoLISP language under the AutoCAD system, CTK customer language of SmartCAM is used as the overall CAD/CAM environment. Results of this system will be provide effective aids to the designer and manufacturer in this field.

Development of CAD Software for Automatic Design of Disk-Typed Cams-Part I : Iterative Contact Method (디스크형 캠의 자동설계용 CAD S/W 개발-Part I :설계 및 해석 알고리즘 개발)

  • Son, Ju-Ri;Sin, Jung-Ho
    • 한국기계연구소 소보
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    • s.19
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    • pp.149-154
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    • 1989
  • Generally Cam-Follower systems consist of two elements: Cam is for rotating motion and follower for reciprocating motion. Depending on the shape of cam and type of follower, the motion of cam-follower system is determined. Thus design process and analysis process must be well defined. The design process means to find the coordinates of cam shape which can be defined the given motion of follower and the analysis process means to determine the motion curve of follower corresponding to the given cam based on the dimensions of a cam-follower system. This paper consists of two parts: One is development of a numerical method for design and analysis of cam-follower systems, the other is for development of a CAD program and its application. As the first part of the paper, an iterative contact method is proposed. This method can calculate the contact points between cam and roller and determine their contact angles iteratively. The second part of the paper presents the structure of a CAD program and its availability to the industrial applications.

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Fabrication of computer-aided design/computer-aided manufacturing complete denture and conventional complete denture: case report (CAD/CAM system과 전통적인 방법을 이용한 총의치 동시 제작 증례)

  • Kim, Mi-Jin;Kim, Kang-Ho;Yeo, Dong-Heon
    • Journal of Dental Rehabilitation and Applied Science
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    • v.32 no.2
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    • pp.141-148
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    • 2016
  • Recently computer-aided technology has been widely used in dentistry. DENTCA$^{TM}$ CAD/CAM denture system (DENTCA Inc.), one of CAD/CAM systems for fabricating complete denture, tries to collect and store all of a patient's information at the first visit. This system aims to deliver denture at the second visit through utilizing the CAD/CAM software to access the stored data for designing the 3D denture model. The 3 dimensional (3D) denture will then be fabricated with 3D printer. Many case reports have evaluated clinical application of CAD/CAM system for fabricating complete dentures. This case report is about fabricating of complete dentures using DENTCA system and conventional method in same patient. With two cases, usefulness and limitation of DENTCA system could be evaluated.

A Study on Manufacturing Innovation in the Jewelry Industry through Automated Systems (자동화 시스템을 통한 쥬얼리 산업의 제조 혁신에 관한 연구)

  • Chun, Jung Jin
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.4
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    • pp.123-130
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    • 2020
  • Prior to the introduction of automated systems such as jewelry CAD and CAM, the jewelry manufacturing industry had many originals made by hand. However, after the introduction of the automated system, original craftsmen with high technology have disappeared, and computer designers and 3D printing print engineers are taking their place. The introduction of automated systems such as CAD and CAM in the existing hand-made production line has resulted in diversification of designs and cutting-edge and specialization of jewelry manufacturing. In the domestic jewelry industry, the dependence of automation systems such as CAD and CAM in the manufacturing process continues to increase, and the situation is taking up more and more parts in the jewelry design curriculum of universities. From these results, the CAD/CAM automation system field in the jewelry manufacturing industry becomes an essential and important field in the future.

Rehabilitation of fully edentulous patient using Ceramill full denture system (FDS) (Ceramill full denture system을 이용한 무치악 환자의 양악 총의치 제작)

  • Lee, Younghoo;Kwon, Kung-Rock;Pae, Ahran;Noh, Kwantae;Paek, Janghyun;Hong, Seoung-Jin
    • The Journal of Korean Academy of Prosthodontics
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    • v.57 no.3
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    • pp.232-237
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    • 2019
  • CAD/CAM technology has already been used in most areas of prosthetics. The range of CAD/CAM application in denture fabricating process has been gradually increasing since the CAD/CAM technology was introduced for the fabrication of complete dentures in 1994. This paper describes a technique that combines conventional and CAD/CAM technology for the fabrication of complete dentures: the master casts from a conventional impression techniques were scanned first, and the wax denture was fabricated using Amann Girrbach's Ceramill full denture system (fds). The purpose of this paper is to introduce the case in which making an esthetically and functionally satisfied denture in shorter time is possible with CAD/CAM technology.

Submucosal zirconia implant prosthesis fabricated with CAD/CAM (CAD/CAM으로 제작한 점막하 지르코니아 임플란트 보철 수복 증례)

  • Chang, Jae-Seung;Kim, Sunjai
    • The Journal of Korean Academy of Prosthodontics
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    • v.52 no.4
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    • pp.352-358
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    • 2014
  • They have been recently introduced many aesthetic implant prosthesis using with zirconia and CAD/CAM. However, there are many limitations in their gingival and occlusal region. In this case, submucosal zirconia implant prosthesis were fabricated with CAD/CAM system. The connection of these screw cement retained prosthesis and titanium abutment was designed to 1mm above the fixture. The clinical results were satisfactory on the aesthetics and function.

The ornament modeling of art deco style by the jewelry CAD & CAM (쥬얼리 CAD & CAM에 의한 아르데코 장신구의 모델링에 관한 연구)

  • Kim, Eun-Ju;Kim, Pan-Chae
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.17 no.1
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    • pp.41-45
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    • 2007
  • ART DECO is a suitable for the rational style and the variation in modeling techniques of artistic revival. At present, production using CAD & CAM by software have great potential adaptation in the industrial arts since it accomplishs the understanding of the plan and promote as realization of automation with rapid and accurate results. Until a recent date, geometrical, abstract mode was discovered through the advanced development, with the tendency of mechanical modification. This paper attempts to practice in accordance with liberal form's fascinating variety from above formative style the application of engineering science. As follows presenting the drawing and 3D MODELING/DATA accordingly it carries out the 3D shapes and techniques by CAD & CAM.

Application of CAD/CAM System to the Manufacturing and the Verification of Straight Bevel Gear with Crown Teeth (크라운 치형을 갖는 직선 베벨기어의 제작 및 검증을 위한 CAD/CAM 시스템 활용)

  • Lee, Kang-Hee;Park, Yong-Bok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.9 no.2
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    • pp.270-275
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    • 2008
  • The straight bevel gear for automobile part has been manufactured by the cold forging instead of the gear machining tool for the mass production. The application to CAD/CAM system has been necessary in order to develop the precision product quickly by forging through the minimization of trial and error and confirm the reproducibility. In the study, the straight bevel gear with the crown teeth has been modelled by the CAD/CAM system. The master gear after the gearing test has been machined after the modelling, NC data generation and verification. The die for forging and the jig for machining has been manufactured using the master gear.

A New Approach to CAD/CAM Systems Data Exchange Using Plug-in Technology

  • Chernopyatov Y.A.;Chung W.j.;Lee C.M.
    • International Journal of Precision Engineering and Manufacturing
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    • v.6 no.4
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    • pp.8-13
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    • 2005
  • Interoperability has been the problem of CAD/CAM systems. Starting from 1980's, national and international organizations have addressed the issue through development and release of standards for the exchange of geometric and nongeometric design data. To CAD/CAM vendors, the task of interpreting and implementing these standards falls into their products. This task is a balancing action between users' needs, available development resources, and the technical specifications of standards. This paper explores an area of CAD/CAM systems development, particularly the implementation of the effective exchange files translators'. A new approach is introduced, which proposes to enclose all the translation operations concerning each exchange format to a separate DLL, thus making a 'plug-in.' Then, this plug-in could be used together with the CAD/CAM system or with specialized translation software. This approach allows to create new translators rapidly and to gain the reliable, high-efficiency, and reusable program code. The second part of the paper concerns the possible problems of translators' development. These difficulties often come from the exchange standards' misunderstanding or ambiguity in standards. All examples come from the authors' practice experiences of dealing with CAD/CAM systems.

Space maintainer using CAD/CAM system without a band: a case report (CAD/CAM 시스템을 이용하여 band 없이 공간유지 장치를 제작한 증례)

  • Eun-Sook Kang
    • Journal of Dental Rehabilitation and Applied Science
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    • v.40 no.2
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    • pp.100-106
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    • 2024
  • Early interceptive orthodontic interventions are often started in the developing dentition to guide normal occlusion. The simplest way to prevent eruption failure from deciduous tooth loss is to fix a space maintainer such as a band and loop. Band and loop space maintainer has several problems like cement loss, demineralization, locking of the adjacent tooth, and needs to take a pickup impression of the band. Computer-assisted design/computer-assisted manufacturing (CAD/CAM) space maintainer without band was developed to solve these problems. This case report describes successful eruption of the mandibular second premolar using CAD/CAM without a band.