Course title, code: CAD/CAM Systems, GAGEBAN-CADCAMRE-1
The application of virtual reality in manufacturing design. The concept of a digital factory, knowledge and data management in the digital factory, and the future development of the digital factory.
1. Process of computer-aided technological design. Structure of the CAD module: creating conserves, forming elements, creating shapes, transformations. 2. The process of mechanical design. Life stages and product models. Fundamentals of design based on shape features. 3. The structure of the CAM module. Definition of 2, 2.5, 3, 4, and 5-axis machining, the purpose of 'rotational movement.' Post-processing of the 4. CNC program, the process and purpose of manufacturing animation. The process of digital design and manufacturing defines and categorizes digital manufacturing (manufacturing and assembly, synchronous modeling, manufacturing planning, manufacturing logistics, manufacturing automation, etc.). 5. The fundamentals of design based on shape features: the limitations of solid modeling, feature-based modeling, basic concepts. 6. The classification of manufacturing technology features. Geometric and semantic interpretation of shape features. Management of attributes, types of shape features, classification. Principles of modeling with shape features, the essence of the term 'Design with features'. 7. Smoothing techniques in various CAM software (e.g., based on raster, radial, spiral patterns, 3D offset smoothing, 'Z' direction smoothing, principles of residual milling, etc.), engagement techniques. Projection smoothing (flat, straight, circular), smoothing of 4-5D surfaces. Finishing free-form surfaces with a ball-end mill (smoothing of surfaces in hardened and non-hardened states). 8. Steps of 3D scanning. Processing of scanning results. The process of 'Reverse Engineering' design (application examples). 9. Surfaces - description, modeling. Characterization of wireframe, solid, and surface models. Interpretation of translational, line, and sculptural surfaces. Description of planar geometric shapes, both analytic and non-analytic curves (Bézier curve, string, spline, polynomial). Description and derivation of surfaces. 10. Introduction to Siemens PLM software (Tecnomatix). The relationship between digital design and digital manufacturing. Machine tool modeling (digitization of machine tools), manufacturing modeling in virtual space (examples related to the topic from the department). 11. Smoothing strategies in CAM. Interpretation of the theoretical and actual tool paths, and the basic concepts used in smoothing. Factors affecting surface roughness during smoothing. 12. The purpose and classification of rapid prototyping techniques. Presentation of individual processes (SLA, SLS, DLP, FDM, LOM, PolyJet, Slice Milling, etc.). The process of concurrent product development. The steps of concurrent product development, the relationship between life stages and the product model. The use of computer techniques in mechanical design.
Course content - labs:
Knowledge:
Can apply the computational, modeling principles and methods related to mechanical product, process, and technology design.
Description of the geometric editing modules of a CAM software. Designing 2D tasks with the help of the taught CAM software. Constructing planar geometric shapes in a CAM software. Demonstration of manufacturing 2.5-3D surfaces. Use of CAM software starting from a solid model. Presentation of Reverse Engineering techniques and RP (rapid prototyping) processes under laboratory conditions. Completion of three design tasks.
Is open to learning about and accepting ongoing professional and technological developments and innovations in the technical field, and reliably conveying them.
Identifies the shortcomings of applied technologies, the risks of processes, and initiates actions to mitigate these.
Mid-term study requirements:
During the semester, students must write one in-class test, which can be corrected or made up once. Prerequisites for registering for the exam include completing the labs, submitting three midterm assignments, and achieving at least a satisfactory result on the in-class test. Assignments can only be submitted in person to the instructors, and students must be able to answer questions related to the completion of the tasks. The duration of the in-class test is 60 minutes, with a maximum score of 100 points. The passing score is 50 points, satisfactory is 61 points, good is 76 points, and excellent is 86 points. The exam consists of written and oral parts. A student can start their exam if they demonstrate the ability to independently handle NCT simulation software and are capable of post-processing a CNC program using a CAM software taught at the department.
Exam requirements:
Exam
The computer simulation program for NCT controls. Description of the programming and operation of NCT lathe and milling controls (www.nct.hu). Material from Dr. Pál Boza's lecture (downloadable from the department server). Guide for using EdgeCam software (downloadable from the department server).
Michael Fitzpatrick: Machining and CNC Technology, 2005 by the Mc.Graw. Hill (Higher Education).